Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual - Manual (Page 101)

Transferring Discrete and BlockĆTransfer Data
Chapter 8
8-6
For PLC-5/12, -5/15, and -5/25 processors, words 0-7 in the integer file
represent output, words 8-15 represent input.
Determining the Status of the AdapterĆMode Processor
Supervisor Adapter AdapterĆmode processor sends to
Supervisory processor
The supervisory processor receives these status bits (Table 8.K) from the
adapter-mode processor in word 0 of the input file for the rack that the
adapter-mode processor is emulating.
Table 8.K
Status Bits of the AdapterĆMode Processor
When this bit is set: It indicates this condition:
10 octal data not valid
15 octal adapterĆmode processor is in program or test mode
If you use an adapter image file in a PLC-5/12, -5/15, or -5/25 processor,
then these status bits are not sent.
The supervisory processor should monitor the rack fault bits for the rack
the adapter-mode processor is emulating to determine the status of the
remote I/O link.
Determining the Status of the Supervisory Processor
Supervisor Adapter Supervisor processor sends to
adapterĆmode processor
The adapter-mode processor receives these status bits (Table 8.L) from the
supervisory processor in I:30 (or word 8 of the adapter image file) of the
adapter-mode processor’s data table. These bits tell the adapter-mode
processor the status of the supervisory processor and the integrity of the
remote I/O communication link.