This page displays data as presently found in the local registers maintained by this device.
Showing objects from
Object #
Object Name
Out of
Service
Force
Present Value
Reliability
Status Flags
Device Link
MV 1
0
0,0,0,0
--- ---
MV 2
0
0,0,0,0
--- ---
MV 3
0
0,0,0,0
--- ---
MV 4
0
0,0,0,0
--- ---
MV 5
0
0,0,0,0
--- ---
MV 6
0
0,0,0,0
--- ---
MV 7
0
0,0,0,0
--- ---
MV 8
0
0,0,0,0
--- ---
MV 9
0
0,0,0,0
--- ---
MV 10
0
0,0,0,0
--- ---
MV 11
0
0,0,0,0
--- ---
MV 12
0
0,0,0,0
--- ---
MV 13
0
0,0,0,0
--- ---
MV 14
0
0,0,0,0
--- ---
MV 15
0
0,0,0,0
--- ---
Quick Help

Multistate Value objects may be both a source and destination for Modbus register data. The source of data for the MV object will be reading a remote Modbus register when associated with a Read Map. The destination of data for the MV object will be writing a remote Modbus register when associated with a Write Map.

The MV object may be simultaneously associated with both Read and Write maps pointing to the same remote Modbus register. This usage is most analagous to the traditional Modbus Holding Register where you want to write the register, but read back any different data that register may contain later. When the BACnet client writes a new value to the MV object, this data will be written to the Modbus register before any subsequent read. Thus the MV data is not discarded by the read operation before the new data can be written.

Out of Service means the remote Modbus register will be neither read or written. Reading and writing will resume when placed back in service.

Reliability codes may be any of the following:
Modbus client, no response (64)
Modbus client, crc error (65)
Modbus exception, illegal function code (66)
Modbus exception, illegal data address (67)
Modbus exception, illegal data value (68)
Modbus exception, code+65, rarely used (69..79)
Local device, configuration property fault (80)
Faulty Modbus packet(81)
BACnet IP client, device timeout (82)
BACnet IP client, error returned by server (83)

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 RTU or TCP, 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 Modbus to this BACnet object. The designation R means read from Modbus, and W means write to Modbus.