Glossary of TermsA - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z 10Base-TThe Ethernet standard by which BACnet device routers and the WebCTRL Server are networked together. 10Base-T indicates that information is transmitted between these devices at 10 million bits per second (Mbps) over twisted-pair cabling. A AARAn ARCNET-to-ARCNET router for networking the ZN line of control modules. absolute pathA route, consisting of reference names, from the system level to a specific tree item. For example, /trees/geographic/atlanta_-_rd_facility/first_floor/zone_1/lstat. Action paneThe right portion of the WebCTRL interface you use to view information and perform actions. alarmA message sent from an alarm source (usually a microblock in a control program) to WebCTRL to notify you that certain conditions exist, such as a piece of equipment has stopped running or a temperature is too high. When WebCTRL receives an alarm, it displays information about the alarm on the Alarms page. WebCTRL can also perform alarm actions to inform personnel of the condition and to record information about the alarm. An alarm source can also send a return-to-normal message when the alarm condition returns to its normal state. alarm actionAn action that WebCTRL performs to notify personnel of an alarm or to record information about the alarm. You can assign alarm actions to an alarm source, a category of alarm sources, alarm sources from a certain location, or a combination of these criteria. alarm incident groupAll alarms related to a particular incident. For example, an alarm and its return-to-normal form an alarm incident group. alarm messageThe information WebCTRL displays on the Alarms page View tab. alarm sourceA microblock in a control program that is set up to generate alarms. Annex J, BACnet/IPBACnet over IP, where BACnet information is routed across IP routers using BBMD tables. APTAccess Port Transceiver. A mini-DIN connector module used to connect a computer to a control module or sensor. This device allows you to communicate with the control module network for troubleshooting or transferring memory. ARCNET 156 kbpsAttached Resources Computer Network. A non-proprietary high-speed peer-to-peer token passing Local Area Network (LAN) protocol operating at 156 kbps. ARCNET can be used on twisted shielded cable networks, coaxial cable, and other physical media. areaAn item on the tree representing a physical location in the system such as a city, building, zone, or floor. ATADA cable for connecting 9-pin computer to modem. ATMCA cable for connecting 9-pin computer to modem. audit logA record of operator and system activity stored in a text file or database. B BACnetBuilding Automation and Control network. Data communication protocol designed for building automation to promote interoperability between different system vendors over several transport media. BACnet device routers(Also device half-router) A combination of a BACnet device and a BACnet router. A device router transfers messages from one network segment to another. It also contains BACnet objects and program objects, and executes BACnet services.
BACnet objectEvery point or value in a BACnet system. These objects have both a name and a unique ID. BACview SPI ExtenderA supplemental control module that allows a synchronous peripheral interface (SPI) type BACview1 or BACview2 keypad display unit to be remotely mounted up to 1000 feet away from the control module using CAT-5 cable with an RJ-45 connector on each end. BACview1A local operator interface and display (2 x 16 LCD) BACview2A local operator interface and display (4 x 40 LCD). BACview6A local operator interface with large keypad. BBMDBACnet Broadcast Management Device. A device that allows BACnet/IP (Annex J) communications across IP routers. Only one ALC BACnet router per subnetwork can be defined to function as a BBMD. A BBMD contains a Broadcast Distribution Table (BDT) which lists the IP addresses of all other BBMDs on other network segments. Whenever a BACnet broadcast is received by a BBMD on its local network segment, it then forwards the message to the other BBMDs on its list using IP Directed Broadcasts. After receiving a Directed Broadcast from the transmitting BBMD, the receiving BBMDs then retransmit the message on their local segment as a BACnet broadcast. Boolean logicA form of algebra in which all values are reduced to either TRUE or FALSE. BT485A terminator and bias board for EIA-485 networks (ME,SE, ZN) C clientA computer that contacts a server and requests data such as files or web pages. clippingAll or part of a system that is exported from one system database and imported into another system database. controlAn object on a WebCTRL graphic that reads or writes information to or from your system, such as a status values, the date or time, a trend graph, or a setpoint control. control moduleThe physical device (hardware) that controls a piece of equipment based on sensor inputs and the control program in the module's memory. control programSoftware that resides in a control module to monitor and control a piece of equipment in a building. Control programs are created in EIKON for WebCTRL. A control program consists of discrete logical functions (called microblocks) linked together to create logical sequences of operation and control. Editable properties for the control program can be changed in WebCTRL. A control program can generate alarms when defined conditions are met. Core32MA core board memory upgrade. COV incrementChange of Value increment. The minimum change in the present value that must occur to trigger a trend sample. COV resubscription intervalThe interval at which WebCTRL sends subscribe requests to the control module (in seconds). custom reportAny report created with Report Designer, a tool that is furnished if your system has the advanced reporting package. You can create a custom report to collect specific information for a particular application, such as a summary report that calculates the power consumption for a building. D DBMSDatabase Management System. A collection of programs that allow you to store, modify, and extract information from a database. WebCTRL uses a DBMS to manage system data, events, and historic trend information. deadbandThe amount inside the normal range by which an alarm condition must return before a return-to-normal is generated. EXAMPLE
default gatewayThe default router for all IP devices on a network. Typically, the router that connects an internal network to the Internet. Demand ControlA strategy built into certain zone setpoint microblocks that allows the user to conserve energy by relaxing setpoints, rather than shutting down equipment, as the demand level rises in a building. You define the amount the setpoints are adjusted based on the demand level in EIKON for WebCTRL. The amount can be adjusted in WebCTRL. descriptionAn alphanumeric string that identifies an object to the user. deviceSee control module. DIAG485Diagnostics board for ARCNET 156Kbps over EIA-485 or for regular EIA-485. Includes two terminator resistors. Shows the communication signal levels on the network segment and adds bias to reduce the effects of noise. display nameThe name WebCTRL displays for any object in the system (such as a tree location, operator, or microblock). downloadThe process of transferring control program changes to the control modules. You can select the equipment to be downloaded and the type of download (memory, parameters, schedules, or BBMD). duty cycleA period of time during which equipment is alternately on and off. dynamic IP addressAddresses that can be assigned temporarily from a pool of available addresses. Dynamic addresses can only be used on WebCTRL client computers, not servers or routers. E effective setpointThe value a control program is currently attempting to maintain (usually zone temperature) taking into account the programmed setpoint, Optimal Start, Demand Control, Timed Local Override, setpoint adjust, and hysteresis. EIA-232Electronic Industries Association serial communication standard (formerly known as RS-232), uses +/- 12 V signals over a 25-pin D-type connector or 9-pin D-type connector, usually located on the rear of your computer. Generally, communications run over a maximum distance of 50 feet. EIA-485Electronic Industries Association serial communication standard (formerly known as RS-485) uses +/- 5V signals over two or four wire multi-drop communication networks using transmitters and receivers. Generally, communications run over a maximum distance of 4000 feet. EIKON for WebCTRLA Windows-based application used to graphically program, display, and interact with sequences of operation for equipment and systems. It features microblocks (representing discrete logical functions) interconnected on the screen by graphical wires to form logical connections. EthernetA high-speed local area network (LAN) developed by the Digital Equipment Corporation and Xerox Corporation. Ethernet networks transmit data at speeds up to 100 Mbaud. event recipient instanceThe BACnet instance number for the workstation where alarms are to be sent. CAUTION If you change the event recipient instance, you must download to ALL devices. ExecThe software program that resides in a control module's Programmable Read-Only Memory (PROM). The firmware, or Exec, controls the processing of the control programs in the module. expander moduleA module that is added to an existing control module to add more input or output points. One or more expander modules connected to a base device is called a stack. Each expander has a unique address in the stack called the expander number. expander numberA number that identifies which expander module an input or output point is physically wired to. Expander numbers are assigned by setting the DIP or rotary switches on the expander module, and are associated with the physical point using either the point microblock's dialog or the Properties page. external IP addressIP address that allows a message to be routed across the Internet. F FIBER485A fiber optic converter that converts EIA-485 to fiber. Allows the use of fiber optic cable for portions of the CMnet by interfacing a 3-wire CMnet signal with multimode fiber optic port, and serves as a fiber-to-fiber repeater. FIBER485TA fiber optic converter with T off that converts EIA-485 to fiber. Allows the use of fiber optic cable for portions of the CMnet by interfacing a 3-wire CMnet signal with multimode fiber optic port. field codesText strings inserted into alarm messages, alarm actions, and archived alarm information to retrieve live data. firewallA system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both. Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria. firmwareThe software program that resides in a control module's Programmable Read-Only Memory (PROM). The firmware controls the processing of the control programs in the module. foreign deviceAn LG router set up as a BBMD and designated as the device that communicates with WebCTRL Server if the server in separated from the LG router by an IP router. function block (FB)See also control program. G G0100A control module with 10 universal inputs. G01010pA pneumatic control module with 10 universal inputs and 10 pneumatic analog outputs. G220An electronic control module with 2 digital outputs and 2 universal inputs. G4106An electronic control module with 4 digital outputs, 10 universal inputs, and 6 analog outputs. G4106eAn electronic control module with 4 digital outputs, 10 universal inputs, and 6 analog outputs. G4106pA pneumatic control module with 4 digital outputs, 10 universal inputs, and 6 pneumatic analog outputs. G800A digital control module with 8 digital outputs. G8102An non-expandable, electronic control module with 8 digital outputs, 10 universal inputs, and 2 analog outputs. G8102eAn electronic control module with 8 digital outputs, 10 universal inputs, and 2 analog outputs. gainA multiplier that is used with an offset value to convert a raw analog sensor reading to the actual value. The gain property is used with the offset property to calibrate a point: Actual Value = (Raw sensor reading) x (Gain) + Offset gatewayProvides a communications translation between the control module network and the WebCTRL Server or client. GCM2A LANgate with 2 RS232 ports. global pathA path that begins with or entirely consists of a global reference name. For example, #zone_1 or #zone_1/lstat. global reference nameA reference name that begins with a pound sign (#) and must be unique within the entire system. graphic function block (GFB)See also control program. Graphic pageA page displayed in WebCTRL that graphically shows the current status of an area or piece of equipment. WebCTRL graphics include maps, building perspectives, thermographic floorplans, and equipment drawings. H heat and cool source/requestsTerminal units (VAV boxes, fan terminal units, etc.) are the only pieces of equipment we recommend be scheduled (although the software will allow any equipment to be scheduled). Any other equipment that feeds it (chillers, AHUs, boilers, etc.) typically operates based on requests. Equipment that provides heating or cooling to a terminal unit or any other equipment is considered a heat or cool source. hierarchyThe parent-child/tree structure of the system. historic trendsTrend data that is written to the system database for long-term storage. hotspotAn area or an object on a graphic in ViewBuilder that becomes a link to another page when the graphic is displayed in WebCTRL. hysteresisA microblock setting that indicates the amount by which the input value must rise above or fall below the trip point before the microblock's output is turned off. The hysteresis can prevent the microblock from changing its value too frequently when the input oscillates around the trip point. For example, if the trip point is 35 and the hysteresis is 2, the microblock's input must fall to 33 before the output turns off. I installed reportsReports that are built into WebCTRL. internal IP addressIP address that allows a message to be routed to a segment on your local-area network. InterOpSuperVision v3.x systems. InterOp Conversion WizardA Windows-based application used to upgrade a system from InterOp 3.x by exporting InterOp files to WebCTRL. InterOp8500A Johnson Controls DSC 8500 retrofit replacement. IP addressAn identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol route messages based on the IP address of the destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods. IP routerA device that connects any number of LANs. They communicate with each other to determine where packets go and the best route to get them there. J JDBCJava Database Connectivity. Enables any Java application to interact with any SQL-compliant DBMS. Because Java applications run on most platforms and because most relational databases support SQL, JDBC makes it possible to write a single database application that can run on different platforms and interact with different DBMSs. JDBC includes a JDBC-ODBC bridge so that it can also communicate with any ODBC-compliant application. JSPJava Server Page. A technology for controlling the content or appearance of Web pages through the use of servlets, small programs that are specified in the Web page and run on the Web server to modify the Web page before it is sent to the user who requested it. JVMJava Virtual Machine. A self-contained operating environment that behaves as if it is a separate computer. For example, Java applications run in a JVM that has no access to the host operating system. Because it is not part of the operating system, a pure Java application cannot damage other files or applications running on the same computer. WebCTRL, a Java application, can run on different kinds of operating systems as long as a Java Virtual Machine (JVM) has been installed. The JVM, in turn, can run on top of any kind of OS. Microsoft's JVM is included with the Windows 2000 operating system. If you are running Windows 2003 or Windows XP as a browsing client for WebCTRL, you must install a JVM. You can download the JVM from http://java.sun.com/getjava/download.html. K L labelIn EIKON for WebCTRL, a method of connecting microblocks to each other in a control program. Labels carry analog or digital values between microblocks when a wire cannot be drawn or is not appropriate. See also wire. LANgate HWA communication gateway. LANgate SWA program. Learning Adaptive Optimal StartA method used by certain Zone Setpoint microblocks to regulate setpoints so that the ideal temperature range can be achieved when building occupancy begins. The Learning Adaptive Optimal Start routine adjusts setpoints based on the heating or cooling capacity of the equipment, which is adjusted (or learned) over time as the equipment meets or fails to meet the ideal temperature range. legacyPrevious generation ALC systems. LGLANgate LGCA 156k Gateway to CMnet. LGELANgate Ethernet Gateway. A compact BACnet router that provides communication between an Ethernet or IP network and an ARCNET 156Kbps network segment. Supports up to 98 control modules. LGEOLANgate Ethernet Option LGLLANgate Lite (Up To 6 LGLs) LGR1000A LANgate router, 1000 third-party points. LGR25A LANgate router, 25 third-party points. LGRM-ELANgate Rack mount Ethernet BACnet router that provides communication between an Ethernet or IP network and an ARCNET 156Kbps network segment. Supports up to 98 control modules. Has standard 19-inch rack mount enclosure. LGTROLG Token Ring Option location-dependent security policyA type of system security that allows you to assign privileges to an operator only at locations in the system where he needs them. With this type of security, you can also assign him privileges that apply through the entire system. location-independent security policyA type of system security that only lets you to assign privileges to an operator for the entire system. Logic pageA page that displays the control program for a piece of equipment. M M0100An expandable base control module with 10 universal inputs. M01010pnxA pneumatic, non-expandable control module with 10 universal inputs and 10 analog outputs. M0320An expandable base control module with 32 universal inputs. M16160An expandable base control module with 16 digital outputs and 16 universal inputs. M220nxA non-expandable control module with 2 digital outputs and 2 universal inputs. M4106An expandable base control module with 4 digital outputs, 10 universal inputs, and 6 analog outputs. M4106nxA non-expandable control module with 4 digital outputs, 10 universal inputs, and 6 analog outputs. M4106pA pneumatic control module with 4 digital outputs, 10 universal inputs, and 6 analog outputs. M8102An expandable base control module with 8 digital outputs, 10 universal inputs, and 2 analog outputs. M8102nxA non-expandable control module with 8 digital outputs, 10 universal inputs, and 2 analog outputs. M880nxA non-expandable control module with 8 digital outputs and 8 universal inputs. manual commandA command that you execute in WebCTRL using the Command menu option. A manual command can navigate to another place in WebCTRL or it can execute an action. MCPUAn expandable base control module. ME-LGR1000A gateway module, PowerPC, expandable, 200 third-party points. ME-LGR25A gateway module, PowerPC, expandable, 25 third-party points. microblockA block of programming code that has a specific purpose and is represented by a graphic symbol. Microblocks are combined in EIKON for WebCTRL with wires and labels to create a control programs. microblock pop-upAn interactive window used for viewing and modifying a microblock's properties. microblock propertiesUser-defined values or settings that together define the characteristics of a microblock. See Microblock Reference Help. mismatchThe condition that occurs when the values in a control module do not agree with those in the system database. MS/TPMaster Slave/Token Passing scheme operated over an EIA-485 communications network. Master controllers must be aware of other controllers (both master and slave) on the network and pass a token that allows the recipient to initiate a BACnet message. Slave controllers only respond to master controllers. MX0160A control module point expander with 16 universal inputs. MX0320A control module point expander with 32 universal inputs. MX040A control module point expander with 4 universal inputs. MX080A control module point expander with 8 universal inputs. MX1600A control module point expander with 16 digital outputs. MX16160A control module point expander with 16 digital outputs and 16 universal inputs. MX400A control module point expander with 4 digital outputs. MX4106A control module point expander with 4 digital outputs, 10 universal inputs, and 6 analog outputs. MX4106pA pneumatic control module point expander with 4 digital outputs, 10 universal inputs, and 6 pneumatic analog outputs. MX440A control module point expander with 4 digital outputs and 4 universal inputs. MX800A control module point expander with 8 digital outputs. MX8102A control module point expander with 8 digital outputs, 10 universal inputs, and 2 analog outputs. MX880A control module point expander with 8 digital outputs and 8 universal inputs. N NATNetwork Address Translation. An Internet standard that enables a local-area network to use one set of IP addresses for internal traffic and a second set of addresses for external traffic. NAT provides a type of firewall by hiding internal IP addresses. NAT enables a company to use more internal IP addresses without conflicting with IP addresses used by other companies and organizations. NAT allows a company to combine multiple ISDN connections into a single Internet connection. native BACnetA system where all devices residing on any physical network segment communicate using the BACnet protocol. A non-native BACnet system may offer some access to another BACnet system through a BACnet gateway, but use a proprietary protocol between some system devices. Navigation paneThe left portion of the WebCTRL interface used to navigate the system. The navigation pane consists of the navigation tree, the view buttons, and the button that shows alarms and schedules in the navigation tree. navigation treeThe hierarchy of the system where you select the system object you want to view or act upon. NI485A direct network cable that connects Direct Network to a control module's Direct Network port and an EIA-232 computer port. NI485NA direct network cable that connects Direct Network to a control module's Direct Network port and Exec 4.x module's port. nibA small pin on the side of a microblock. Wires and labels must connect with a microblock's nib in order for the control program to compile. NITNAA cable used to download default settings from NI485 to Tnet. nodeA basic element in the tree structure of a database, such as areas and equipment on the Geographic tree or routers and control modules on the Network tree. Nodes are arranged in a parent/child structure. NWPBA network protection board that acts as a primary defense against large electrical surges on communication circuits. O ObjectSee BACnet object. ODBCOpen Database Connectivity. Enables any ODBC-compliant software application to communicate with any ODBC-compliant DBMS. offsetAn additive factor that is used with a gain to convert a raw analog sensor reading to the actual value. The offset property is used with the gain property to calibrate a point: Actual Value = (Raw sensor reading) x (Gain) + Offset. open protocolA set of protocol standards and rules available for public use, such as BACnet and LonWorks. Open protocols allow communication among control modules from different vendors. operating systemA set of commands that enables software applications to communicate with the computer system hardware. Software applications allow people to create, manipulate, and receive a variety of complex information such as text, audio, charts, and images. Besides enabling software and hardware to work together, most operating systems do three basic tasksmanage memory, process scheduling such as multi-tasking and time slicing, and control communication between hardware and software. For example, Microsoft Access. operatorA user of the WebCTRL system, identified by a name and password. operator groupMultiple operators that require the same privilege set. Optimal StartAn algorithm used by certain zone setpoint microblocks to achieve desired zone temperature by the time building occupancy begins. The Optimal Start routine adjusts setpoints before occupancy based on the outside air temperature, the heating or cooling capacity of the equipment, and the amount of time remaining prior to occupancy. P pathA route, consisting of reference names, from one item in the system to another. peer-to-peerA type of communications where one control module communicates with another control module of equal status. prime variableA single number from a control program that best represents the control program's state. Generally, it is the value of some physical variable, such as temperature or airflow. For zone control, you might choose zone temp. For a chiller, it might be discharge water temp. privilegePermission to access a certain part of the system or perform a certain function. You assign privileges to a privilege set. privilege setA group of one or more privileges. You assign a privilege set to an operator to grant him its privileges. programmed setpointThe point at which mechanical cooling or heating equipment is enabled to maintain appropriate temperature in a zone. Properties pagePages in WebCTRL that allow you to make changes to the settings you want your system to maintain. They also reflect what the system is actually doing. PROT485A surge protection device for ARCNET 156Kbps over EIA-485, for U-net, or for regular EIA-485. Place at each entrance or exit to the building and within 250 feet (76 meters) of every control module. Replaces NWPB for legacy CMnet protection. protocolA set of rules and structure that governs how computer devices talk to one another. PTPPoint-to-point. Serial communication between two devices locally or over a telephone modem. An example is connection of a hand held tool to a controller. Q R R683A rooftop/AHU control module with 6 digital outputs, 8 universal inputs, and 3 analog outputs. reference nameA permanent name for a tree item that allows the item to be referenced from graphics, Properties pages, external spreadsheets, etc. A reference name consists of lowercase letters, numbers, hyphens, and underscores (no spaces), and it cannot begin with a number. In the system hierarchy, a reference name must be unique among its siblings, unless it is a global reference name. RefNameSee reference name. relative pathA route, consisting of reference names, from the current tree item to another tree item. For example, first_floor/zone_1/lstat. REP485A repeater for ARCNET 156Kbps over EIA-485 or for regular EIA-485 networks running from 1200 bps to 156 kbps. It boosts communication signals over long runs of wire. Opto isolated. repeaterA device that connects two or more segments of a communication network and reproduces the signal. This is necessary because electronic signals lose their strength over distance. REPOPTAn Opto Isolator/Repeat that provides two bidirectional ports that are optically isolated from each other. requestThe method by which control programs communicate their heating and cooling needs to each other. By using requests you can construct a software "chain" mimicking the mechanical chain of equipment in the building. When properly constructed, requests allow you to schedule terminal or zone equipment only, and allow other equipment to respond to the zone requests. return-to-normalA message sent from an alarm source to WebCTRL when an alarm condition returns to its normal state. RJ45 ConnectorAn 8 position modular jack used for Ethernet cabling. routerForwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP's network. A router must have an IP address for each network it routes to. Routers determine the best path for forwarding the packets and configure the best route between any two hosts. RS ProA room temperature sensor with an LCD display, setpoint adjustment, local override, and a local access port for attaching a laptop. Use with control modules having an Rnet. RS StandardA room temperature sensor with a local access port for attaching a laptop. Use with control modules having an Rnet. RSSA 420mA room sensor. RSZ+A thermistor-based temperature sensor for R line, T line, and Z line modules. Has timed local override switch, local setpoint adjust switch, and an occupied LED indicator. runtimeThe amount of time a piece of equipment has been running. S S6104A non-expandable control module with 6 digital outputs, 10 universal inputs, and 4 analog outputs. schedule groupWhen scheduling, you can identify groups of equipment or zones that follow the same schedule. Use schedule groups to create schedules for related equipment in different areas or when you want to schedule only some of the equipment in a given area. Schedule groups can include other schedule groups. A schedule group can also include equipment or areas in different sites. schedule priority and precedencePriority describes the relative level of importance of a schedule to other schedules and is used in determining which schedule WebCTRL follows at any given time. Precedence describes the relative level of importance of a schedule to other schedules of the same priority. schedulesA cost-saving WebCTRL feature that allows you to define when a building or zone is in a certain state, such as being occupied. Schedules allow the equipment to cycle on and off as necessary to maintain the programmed setpoints for that state. SE6104A non-expandable control module with 6 digital outputs, 10 universal inputs, and 4 analog outputs. segmentA network of up to 32 control modules on the same physical connection. A new segment begins with a REP485. The maximum length of a segment is 2000 feet (609.6 meters). serverA computer that serves requested information, files, and other services to clients. A web server is a type of server that serves web pages. The WebCTRL server is a web server. setpointA temperature value that is set by the user and maintained by the equipment. Cooling setpoint is the temperature at which cooling is enabled. Heating setpoint is the temperature at which heating is enabled. See also effective setpoint. simulationAn action that allows you to test an alarm action and view the resulting message. siteA separate TCP/IP (Transmission Control Protocol/Internet Protocol) network. SiteBuilderA cross-platform application used to generate engineering databases through a graphical and menu-based interface. SNMPSimple Network Management Protocol. Alarm action that sends an SNMP trap to a network. Some examples of monitoring software are HP Openview, Novell NMS, IBM NetView, or Sun Net Manager (contact Technical Support for more options). SSLSecure Sockets Layer. See TLS. static IPA specific IP address assigned to a WebCTRL server or router. A permanent IP addresses which do not change are called static IP addresses. A static IP address is usually obtained from the network administrator. WebCTRL server and BACnet routers must have static addresses. status flagIndicates the current state of a point. Valid flags are: 1=alarm, 2=fault, 4=override, and 8=out of service. Valid flag values can also include any sum of any combination of these numbers. For example, a point that goes into alarm and then out of service is assigned a status flag value of 9 (1+8). symbol (EIKON for WebCTRL)A commonly-used graphic programming sequence that is stored in a .sym file so that it can be inserted in control programs as needed. Symbol files can be created in EIKON for WebCTRL using the Edit-Copy To menu command. symbol (ViewBuilder)A commonly-used combination of images, controls, and text that is saved in a file so that it can be inserted in graphics as needed. Most symbols relate to duct work, such as coils, fans, and dampers. Some symbols are animated, such as a fan turning when the fan is on. systemA group of modules accessed from a single database. A system can contain more than one site. T T320A control module for exhaust fans, unit heaters, and domestic water heaters. Has 3 digital outputs and 2 universal inputs. T320VRSZ+ with 3 digital outputs and 2 universal inputs. T540Zone control with 5 digital outputs and 2 universal inputs. T540VZone control with integral air flow sensor. Has 5 digital outputs and 2 universal inputs. TCPTransmission Control Protocol. A guaranteed delivery method where the sender verifies that the data packets arrive at the destination. TERM485A terminator resistor for ARCNET 156Kbps over EIA-485 or for regular EIA-485. Prevents signal at end of cable from echoing or reflecting back. terminatorA 120 Ohm resistor that should be placed at the beginning and end of every segment to prevent signal distortion due to echoing. thermographic colorsColors on a floorplan or equipment graphic that indicate current conditions, such as too warm or too cool. TLSTransport Layer Security. A communication protocol that provides client/server authentication and 128-bit encryption of all transmitted data. TLS is a more recent version of SSL (Secure Sockets Layer). TNIA parent control module that controls up to 40 T-card zone controllers. TNPBA T-net protection board that acts as primary defense against large electrical surges on T-Net communication circuits. trend graphA graph that displays equipment status values over a period of time. trend logThe object in a module containing the trend data (either the Trend microblock or the embedded trend object in I/O microblocks). trip pointThe value of the input that causes the output to change states. U U141v+A control module for pressure independent VAV applications. Includes integral actuator and precision air flow sensor. Has 1 digital output, 4 universal inputs, and 1 analog output. U220A control module for exhaust fans, unit heaters, and domestic water heaters. Has 2 digital outputs and 2 universal inputs. U253A control module for unit ventilators and other packaged HVAC applications. Compatible with USF/UDF optional air flow sensor for pressure independent VAV application. Has 2 digital outputs, 5 universal inputs, and 3 analog outputs. U341vA control module for pressure independent VAV applications. Includes integral air flow sensor only. Requires external actuator. Has 3 digital outputs, 4 universal inputs, and 1 analog output. U341v+A control module for pressure independent VAV applications. Includes integral air flow sensor and integral actuator. Has 3 digital outputs, 4 universal inputs, and 1 analog output. U551A control module for heat pumps, fan coil units, and other packaged HVAC applications. Compatible with USF/UDF optional air flow sensor for pressure independent VAV applications. Has 5 digital outputs, 5 universal inputs, and 1 analog outputs. UASFA zone control module extension designed for use with the U341v+ dual duct applications. Includes integral actuator and precision air flow sensor. UDFAn air flow sensor that plugs directly into U253 or U551 controller. UDPUser Datagram Protocol. A non-guaranteed delivery method. The data packets are delivered without verifying that the receiver gets the data packets. UDP consumes less bandwidth than TCP. UNIA parent control module that is interoperable with TNI. UNI16A parent control module for U-Line network interface that can control up to 16 zone control modules; supports legacy CMnet, but not T-cards. UNI30A parent control module for U line or T line network interface that can control up to 30 zone control modules, ARCNET 156 only. UNI32A parent control module for U line network interface, controls up to 32 zone control modules; supports legacy CMnet, but not T-cards. UNI59A parent control module for U line or T line network interface, controls up to 59 zone control modules; supports legacy CMnet, replaces TNI. USFAn air flow sensor that plugs directly into U253 or U551 controller. V valueAn assigned, sensed, or calculated numerical quantity associated with a point, event/alarm, or node. Variable colorA feature of ViewBuilder that you assign to an area or object so that it will display different colors in WebCTRL to denote status, such as too warm or too cool. ViewBuilderA cross-platform application used to create WebCTRL graphics for WebCTRLv2.5 and forward. See also graphic. ViewBuilder for WAPA cross-platform application used to customize WebCTRL pages viewed on WAP-enabled devices. VPNVirtual Private Network. A private, encrypted tunnel through the Internet that allows transmission of data between two physical sites. W WACSWeb Accessible Control System. A building automation system that generates web pages. WAPWireless Application Protocol. A communications protocol that allows you to access your system through a wireless device, such as a telephone. WebCTRLA cross-platform web-based application that provides a graphical interface to a control network for common control modules and complex energy management functions. WebCTRL uses dynamic color graphics to communicate the operational conditions of a building, and accepts adjustments to controlled equipment's editable properties. WebCTRL provides alarm handling flexibility, including several alarm notification options and reporting actions. WebCTRL clientA web-enabled device capable of browsing to the WebCTRL server. WebCTRL extensions for FrontPageCustom add-ons to Microsoft FrontPage® that allow the creation of WebCTRL graphics (v1.0 through v2.0 systems only). See also graphic. WebCTRL ServerA server application that communicates with system control modules and generates the web pages that allow you to view or edit the system on a WebCTRL client. WebDAVWeb-based Distributed Authoring and Versioning. A set of extensions to the HTTP protocol designed for managing remote server files through an Internet connection. WebPRTLA control module interface that monitors the status of third-party devices. WebZONEA Barber-Coleman's or Invensys's MICROZONE II retrofit replacement. wireA special line drawn in EIKON for WebCTRL to transmit values from one microblock to another. Analog data is transferred along solid wires, and digital data is transferred along dashed wires. Wires can be connected to microblocks, labels, or other wires. When a wire cannot be drawn or should not be used, a label serves the same purpose. See also label. X X01010pA pneumatic control module point expander with 10 universal inputs and 10 pneumatic analog outputs. X0160A control module point expander with 16 universal inputs. X0320A control module point expander with 32 universal inputs. X040A control module point expander with 4 universal inputs. X080A control module point expander with 8 universal inputs. X1600A control module point expander with 16 digital outputs. X16160A control module point expander with 16 digital outputs and 16 universal inputs. X400A control module point expander with 4 digital outputs. X4106eA control module point expander with 4 digital outputs, 10 universal inputs, and 6 analog outputs. X4106pA pneumatic control module point expander with 4 digital outputs, 10 universal inputs, and 6 pneumatic analog outputs. X440A control module point expander with 4 digital outputs and universal inputs. X484pA pneumatic control module point expander with 4 digital outputs, 8 universal inputs, and 4 pneumatic analog outputs. X800A control module point expander with 8 universal inputs. X8102eA control module point expander with 8 digital outputs, 10 universal inputs, and 2 analog outputs. X880A control module point expander with 8 digital outputs and 8 universal inputs. XCPUA control module with 32-bit processor and 256k memory. Y Z Z01010pA control module for 10 pneumatic zone applications with 10 universal inputs and 10 pneumatic analog outputs. Z320A zone control module with 3 digital outputs and 2 universal inputs. Z320vA zone control module with integral air flow sensor. Has 3 digital outputs and 2 universal inputs. Z443A zone control module with 4 digital outputs, 4 universal inputs, and 3 analog outputs. Z540A zone control module with 5 digital outputs and 2 universal inputs. Z540vA zone control module with integral air flow sensor. Has 5 digital outputs and 2 universal inputs. ZN220A control module for miscellaneous applications. Has 2 digital outputs and 2 universal inputs. ZN253A control module for heat pumps, fan coil units, and other packaged HVAC applications. Has 2 digital outputs, 5 universal inputs, and 3 analog outputs. ZN551A control module for heat pumps. fan coil units, and other packaged HVAC applications. Has 5 digital outputs, 5 universal inputs, and 1 analog output. |