1785-L20C

Product Overview

The 1785-L20C is a ControlNet processor module designed for Allen-Bradley's PLC-5 systems.

Processing & Memory

• Program Scan Time:
  • Bit Logic: 0.5 ms/Kword
  • Typical Logic: 2 ms/Kword

• Max MCPs (Multiple Command Programs): 16

I/O Capacity

• Max Total I/O: 512 (any mix) or 512 input + 512 output (complementary)

• Max Analog I/O: 512

• I/O Scan Time Per Rack:
  • 10 ms @ 57.6 kbps
  • 7 ms @ 115.2 kbps
  • 3 ms @ 230.4 Mbps

• Max I/O Chassis:
  • Total: 13
  • Extended Local: 0
  • Universal Remote: 12

Communication & Ports

• Serial Port: RS-232-C / RS-422-A / RS-423-A (1 port)

• Coprocessor Port: Yes

• Control Coprocessor Expansion Port: Yes

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