Intelligent Technologies Modbus to QCPort Adapter Manual
January 2006
MN05002002E (C)
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Page 35
Register 2305 - 2310 Modbus Adapter Faults
These 6 registers will represent the fault index with in the Modbus Adapter. These fault
registers are a bit representation of the Appendix D Modbus Adapter Fault List and are
capable of indicating multiple faults at one time. For example if there is a fault 23 and a
fault 27 at the same time, bit location 23 and also 27 will be true (Register 2306 bit 7 and
bit 11).
Register 2320 – 2323 Fault Bit Array Channel A
Reading these 4 registers will provide feedback as to the state of the devices on QCPort
Channel A, one bit for each device on the system. If the system only has 18 devices on
Channel A, for example, only registers 2320 and 2321 need to be read. The location of
the bit with in the register correlates to the location of the device in the scan list. For
example, QCPort device ID 4 may be the 3
rd
device in the scan list if the addresses on
that Channel are 2, 3 and 4
Table 32 Fault Bit Array Channel A
Notice
Any time a device in the fault bit array is faulted bit 0 will be true. A device may be
faulted because it has been removed from the system and no longer communicates to
the network adapter.
15
14
13
3 2 1 0
Device
15
Device
14
Device
13
Device
3
Device
2
Device
1
Faulted
Device
