|
Property |
Type |
Description |
|
Analog Input 1[1] |
Numeric |
Value of linear input (0–10 VDC, 0–20 mA, or 100 to 100,000 ohms) connected to Universal Input 1 on the BCU. |
|
Analog Input 1[2] |
Numeric |
Value of Thermistor sensor (-20 F to 250 F) connected to Universal Input 1 on the BCU. |
|
Analog Input 1[3] |
Numeric |
Value of Platinum RTD sensor (-90 F to 250 F) connected to Universal Input 1 on the BCU. |
|
Analog Input 1[4] |
Numeric |
Value of Balco RTD sensor (-64 F to 250 F) connected to Universal Input 1 on the BCU. |
|
Analog Input 2[1] |
Numeric |
Value of linear input (0–10 VDC, 0–20 mA, or 100 to 100,000 ohms) connected to Universal Input 2 on the BCU. |
|
Analog Input 2[2] |
Numeric |
Value of Thermistor sensor (-20 F to 250 F) connected to Universal Input 2 on the BCU. |
|
Analog Input 2[3] |
Numeric |
Value of Platinum RTD sensor (-90 F to 250 F) connected to Universal Input 2 on the BCU. |
|
Analog Input 2[4] |
Numeric |
Value of Balco RTD sensor (-64 F to 250 F) connected to Universal Input 2 on the BCU. |
|
APDU Segment Timeout |
Binary |
Application Layer Protocol Data Units (APDUs) represent requests and results of applications communicating over BACnet. Some APDUs are so large they must be broken into multiple "segments." This property indicates the status of the timeout. |
|
APDU Timeout |
Numeric |
This property indicates the number of milliseconds for an APDU timeout. A timed out APDU is a failed APDU and is retried by the number of times defined by the "Number of APDU Retries" property. |
|
Application Software Revision |
Character |
Not applicable. |
|
BACnet Vendor ID |
Numeric |
This property indicates the vendor ID assigned by ASHRAE (used in BACnet communications). |
|
BCU Database Status |
Multi-State |
Indicates whether BCU’s database is Normal, Under Construction, or Cleared. |
|
BCU System Diagnostics[01] |
Numeric |
Indicates the number of BCU restarts. |
|
BCU System Diagnostics[02] |
Numeric |
Indicates the number of interrupted Power Critical Regions. |
|
BCU System Diagnostics[03] |
Numeric |
Indicates the number of ARCNET reconfigurations. A high or increasing number may indicate cable problems, or two nodes at the same address. |
|
BCU System Diagnostics[04] |
Numeric |
Indicates the number of ARCNET aborted transmissions (timeouts). |
|
BCU System Diagnostics[05] |
Numeric |
Indicates the number of ARCNET receive disables (out of buffers). |
|
BCU System Diagnostics[06] |
Numeric |
Indicates the number of ARCNET messages retransmitted. |
|
BCU System Diagnostics[07] |
Numeric |
Indicates the remainder of ARCNET good transmissions after being dividing by 65536. |
|
BCU System Diagnostics[08] |
Numeric |
Indicates the number of ARCNET good transmissions divided by 65536 |
|
BCU System Diagnostics[09] |
Numeric |
Indicates the remainder of ARCNET good receives after being divided by 65536. |
|
BCU System Diagnostics[10] |
Numeric |
Indicates the number of ARCNET good receives divided by 65536. |
|
BCU System Diagnostics[11] |
Numeric |
Indicates the number of EEPROM re-tried writes. A non-zero value may indicate a bad or failing EEPROM. |
|
BCU System Diagnostics[12] |
Numeric |
Indicates the number of unexpected BACnet replies. A high or increasing value may indicate problems with a remote BACnet device. |
|
BCU System Diagnostics[13] |
Numeric |
Indicates the number of BACnet Reject PDUs sent. A high or increasing value may indicate problems with a remote BACnet device. |
|
BCU System Diagnostics[14] |
Numeric |
Indicates the number of UCM channel 1 reinits. A high or increasing value may indicate problems with a UCM plugin card. |
|
BCU System Diagnostics[15] |
Numeric |
Indicates the number of UCM channel 2 reinits. A high or increasing value may indicate problems with a UCM plugin card. |
|
BCU System Diagnostics[16] |
Numeric |
Indicates the number of UCM channel 3 reinits. A high or increasing value may indicate problems with a UCM plugin card. |
|
BCU System Diagnostics[17] |
Numeric |
Indicates the number of memory blocks outstanding. |
|
BCU System Diagnostics[18] |
Numeric |
Indicates the paragraphs of memory remaining. |
|
BCU System Diagnostics[19] |
Numeric |
Indicates the minimum paragraphs of memory encountered. |
|
BCU System Diagnostics[20] |
Numeric |
Indicates the number of failing memory requests. A non-zero value is a warning of pool problems. |
|
BCU System Diagnostics[21] |
Numeric |
Indicates the maximum number of paragraphs. |
|
BCU System Diagnostics[22] |
Numeric |
Indicates the number of SV memory blocks outstanding. |
|
BCU System Diagnostics[23] |
Numeric |
Indicates the paragraphs of SV memory remaining. |
|
BCU System Diagnostics[24] |
Numeric |
Indicates the minimum paragraphs of SV memory encountered. |
|
BCU System Diagnostics[25] |
Numeric |
Indicates the number of failing SV memory requests. A non-zero value is a warning of pool problems. |
|
BCU System Diagnostics[26] |
Numeric |
Indicates the maximum number of SV paragraphs. |
|
BCU System Diagnostics[27] |
Numeric |
Indicates the raw value of analog channel 0 (universal input 1). |
|
BCU System Diagnostics[28] |
Numeric |
Indicates the raw value of analog channel 1 (universal input 2). |
|
BCU System Diagnostics[29] |
Numeric |
Indicates the raw value of analog channel 2 (+5 ANAVCC, nominally 2784 counts). |
|
BCU System Diagnostics[30] |
Numeric |
Indicates the raw value of analog channel 3 (+5 VCC, nominally 2784 counts). |
|
BCU System Diagnostics[31] |
Numeric |
Indicates the raw value of analog channel 4 (Vunreg+, nominally 2784 counts). |
|
BCU System Diagnostics[32] |
Numeric |
Indicates the raw value of analog channel 5 (GND, nominally 0 counts). |
|
BCU System Diagnostics[33] |
Numeric |
Indicates the raw value of analog channel 6 ((-5, nominally 3892 counts). |
|
BCU System Diagnostics[34] |
Numeric |
Indicates the raw value of analog channel 7 (-12, nominally 3532 counts). |
|
BCU System Diagnostics[35] |
Numeric |
Indicates the raw value of analog channel 8 (Vunreg-, nominally 3341 counts). |
|
BCU System Diagnostics[36] |
Numeric |
Indicates the raw value of analog channel 9 (+12, nominally 3265 counts). |
|
BCU System Diagnostics[37] |
Numeric |
Indicates the raw value of analog channel 10 (VPP, nominally 136 or 3265 counts). |
|
BCU System Diagnostics[38] |
Numeric |
Indicates the raw value of analog channel 11 ref/2, nominally 2048 counts). |
|
BCU System Diagnostics[39] |
Numeric |
Number of UCM channel 1 NAKs. A high or increasing value may indicate problems with a UCM plugin card. |
|
BCU System Diagnostics[40] |
Numeric |
Number of UCM channel 2 NAKs. A high or increasing value may indicate problems with a UCM plugin card. |
|
BCU System Diagnostics[41] |
Numeric |
Number of UCM channel 3 NAKS. A high or increasing value may indicate problems with a UCM plugin card. |
|
BCU System Diagnostics[42] |
Numeric |
Number of COM1 false interrupts. A high value may indicate a faulty IBM-bus serial card or modem. |
|
BCU System Diagnostics[43] |
Numeric |
Number of COM1 receive bytes in FIFO. |
|
BCU System Diagnostics[44] |
Numeric |
Number of DCD transitions. A high or increasing value may indicate an incorrect serial cable. |
|
BCU System Diagnostics[45] |
Numeric |
Number of NO DCD transistions. A high or increasing value may indicate an incorrect serial cable. |
|
BCU System Diagnostics[46] |
Numeric |
Any other Asynce related errors fro Rx handler. A high or increasing value may indicate an incorrect serial cable. |
|
BCU System Diagnostics[43–50] |
Numeric |
Not applicable |
|
Binary Input 1[1] |
Binary |
Status of analog timed override switch if an analog input is connected to Universal Input 1 on the BCU. |
|
Binary Input 1[2] |
Binary |
Status of analog input failure if an analog input is connected to Universal Input 1 on the BCU. |
|
Binary Input 1[3] |
Binary |
Status of a normally open momentary binary input connected to Universal Input 1 on the BCU. |
|
Binary Input 1[4] |
Binary |
Status of a continuous binary input connected to Universal Input 1 on the BCU. |
|
Binary Input 2[1] |
Binary |
Status of analog timed override switch if an analog input is connected to Universal Input 2 on the BCU. |
|
Binary Input 2[2] |
Binary |
Status of analog input failure if an analog input is connected to Universal Input 2 on the BCU. |
|
Binary Input 2[3] |
Binary |
Status of a normally open momentary binary input connected to Universal Input 2 on the BCU. |
|
Binary Input 2[4] |
Binary |
Status of a continuous binary input connected to Universal Input 2 on the BCU. |
|
Firmware Revision |
Character |
Version number and date of factory software in the BCU. |
|
Local Date |
Date/Time Numeric |
Current Date in the BCU. |
|
Local Time |
Date/Time Numeric |
Current Time in the BCU. |
|
Max Message Length Supported |
Numeric |
Longest message the BCU can transmit or receive over the ARCNET LAN. |
|
Mode: System Status |
Character |
This property indicates the BACnet defined device status. OPERATIONAL, OPERATIONAL READ ONLY, DOWNLOAD REQUIRED, DOWNLOAD IN PROGRESS, NON OPERATIONAL. |
|
Model Name |
Character |
Tracer Building Control Unit. |
|
Network Number |
Numeric |
The property indicates the unique numeric value of the comfort system (for example, network) or grouping to which the current BCU is connected. |
|
Number of APDU Retries |
Numeric |
This property indicates the number of times an APDU segment communication attempt will be made. |
|
Object Identifier |
Object ID |
Unique hexadecimal ID of this object. This ID is used internally to identify the object. |
|
Object List [1] |
Character |
Not Applicable. |
|
Object Type |
Multi-State |
Designates object’s type (i.e., analog input, binary output, TCM, PCM, etc.). |
|
Percent BCU NVM Available |
Numeric |
This property indicates the percent of nonvolatile memory storage left for database use. |
|
Percent BCU VM Available |
Numeric |
This property indicates the percent of volatile memory storage left for database use. |
|
Percent Processor Idle Time |
Numeric |
Indicates the average idle time (%) of the processor for the first 5 minutes. |
|
Protocol Conformance Class |
Numeric |
Protocol class to which the BCU conforms. |
|
Protocol Version |
Character |
Protocol version the BCU is using. |
|
Segmentation Supported |
Binary |
Some APDUs are so large they must be broken into multiple "segments." This property indicates the whether segmentation is supported. |
|
Update Tag |
Numeric |
Value indicating last edit change of this object. |
|
Vendor Name |
Character |
Trane Global Controls and Contracting. |
|
Window Size |
Numeric |
Not applicable. |
BMTS — Model Building Control Unit (BCU)
|