Dc Power Cable; Communications Processing Function; Table 3 Communication Options Per Plc - Black & Decker d984 Installation Manual

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Note
Factory and earth grounds often have different potentials; e.g.,
building steel versus grounding rods.
DC
Power Cable
The recommended DC power cable should consist of three insulated leads of
Number 18 AWG stranded copper, The cable leads insert in the plug-in power
cable connector shipped installed in the DC input connector jack from the factory.
If you are planning DC backup, note the discussion under " Power Supply Func-
tion," section 1. Note also, that your external DC input should go directly to the
controller from the power source and not involve your I/O.
Communications Processing Function
Communications options vary from model to model. Modbus, Modbus and Bridge
mode, or Modbus Plus and Bridge mode, are available using a combination of
hardware DIP switches and software as discussed below.
Table 3
Communication Options per PLC
PLC Comm Ports
381E
385E
385D
480E
485E
685E
785E
785D
785K
2 Modbus
1 Modbus & 1 Modbus Plus
1 Modbus & 1 Modbus Plus
2 Modbus & RI/O
1 Modbus & 1 Modbus Plus & RI/O
1 Modbus & 1 Modbus Plus & RI/O
2 Modbus & 1 Modbus Plus
2 Modbus & 1 Modbus Plus
2 Modbus & 1 Modbus Plus
2 Modbus & 1 Modbus Plus
30 System Planning
GM4984-EDK