BB2-7030 User Guide – Rev. 1.0
Page 15
The Analog Output object is commandable, meaning the BACnet client must write both a value
and a priority level for that value. The highest level value will be the one written to the external
device. If all values are relinquished, the relinquish default value will be written to the external
device.
To set an output object manually from this page, check the Force box, enter a value in the
Present Value window, and select a priority level to assign to your forced value. Then click
Update. To return a given priority level to NULL, simply type the word NULL in the Present
Value window, check Force, and click Update.
Out of service means the external device will not be written. Values written by the BACnet client
will be retained, but only applied when this object is placed back in service. At that time, the
highest priority value will be written to the external device.
Reliability codes may be any of the following (7030-01):
64: Modbus client, no response
65: Modbus client, crc error
66: Modbus exception, illegal function code
67: Modbus exception, illegal data address
68: Modbus exception, illegal data value
69-79: Modbus exception, code+65, rarely used
80: Local device, configuration property fault
81: Faulty Modbus packet
82: BACnet IP client, device timeout
83: BACnet IP client, error returned by server
Reliability codes may be any of the following (7030-02):
80: Local device, configuration property fault
81: Faulty packet
82: BACnet IP client, device timeout
83: BACnet IP client, error returned by server
84: SNMP client, no response from agent
85: SNMP client, unable to parse data
86: SNMP client, reply does not match request
Status flags A,B,C,D indicate the following, 0 meaning not true, 1 meaning true:
A = in alarm
B = fault
C = overridden
D = out of service
Device link will indicate BAC or TCP (or SNMP), followed by R for read or W for write, and a
number which is the rule number in the table of read or write rules for mapping external devices
or objects to this BACnet object. The designation R means read from external device, and W
means write to external device.