Created Date: February 12,2015

Created by: scott.lawrence

Where is the PLC storing the module status bits (active channel and broken transmitter)?

in bits 0, 1, (active channel, in binary) 8, 9, 10, and 11 (alarms) of the second input word for that module

Can I access the broken transmitter bits by addressing them as inputs (X) in the logic? If so, what addresses would I use for this particular module?

the module consumes 32 X inputs, so if you start at X0, then the status bits would be X20 & X21, alarm bits would start at X27

EDIT: added info for status bits

Created Date: February 11,2015

Created by: jeff.groves

I'm new to Automation Direct and need some help.

I am working on an existing program that is using a ANLGIN IB-460 instruction to read data from a F2-04THM module. The input data address is V4020. The PLC is a DL260.

Where is the PLC storing the module status bits (active channel and broken transmitter)? I would like to use the broken transmitter bits to monitor the status of the thermocouples and alarm on a broken wire or failed channel.

The module in question is in slot 0 of base #1. All four input channels are active and the data format is binary.

I can see the raw temperature data in V4020, V4022, V4024, and V4026. V4021, V4023, V4025, and V4027 are all zero.

Can I access the broken transmitter bits by addressing them as inputs (X) in the logic? If so, what addresses would I use for this particular module?

Thanks,

Jeff