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-PL2 Interface Option (Preliminary)
Communications:
The -PL2 Option uses the programming port protocol for communicating to
the Allen Bradley PLC-2. The T-60 Series can use the programming port on
the PLC-2 CPU or the programming port on the 1771-KA2 Interface Module.
The PLC-2 communication parameters are not configurable, so issuing the
CALL PLCINIT command will configure COM1 on the T-60 Series device to
the proper settings for the PLC-2.
The Data that cannot be accessed in the EMERSON EMC implementation of
the PLC-2 protocol as noted in the PLC-2 programming manual (Page C-3 -
Data Table Organization) are: Processor Work Areas No. 1 and No. 2, the
Reserved Area, the Expanded Data Table and/or User Program Area, and the
User Program Area. All other areas are accessible via the CALL PLCREAD
and CALL PLCWRITE commands.
Connections:
The -PL2 Option comes with the proper cable to interface to a PLC-2 directly
through the programming port, or to the programming port of the 1771-KA2.
For those who need to change the length of the cable, the proper connections
are shown below:
Command Variations:
There are no variations between the descriptions of CALL PLCINIT, CALL
PLCREAD, and CALL PLCWRITE in the previous section and the Allen
Bradley PLC-2 or 1771-KA2 implementation of those commands.
Figure 27
T-60 Series to Allen Bradley
PLC-2 Communication
Connections
T-60 Operator's Manual
88