1785-L20C/E ControlNet processor module

1785-L20C/E ControlNet processor module

1785-L20C/E Specification

Model:1785-L20C/E
Module Type: ControlNet Processor Module
Max MCPs: 16
Max Analog I/O: 512
I/O Scan Time Per Rack:
10 ms at 57.6 kbits/s
7 ms at 115.2 kbits/s
3 ms at 230.4 mbits/s
Max I/O Chassis Total: 13
Max I/O Chassis Extended Local: 0
Max I/O Chassis Universal Remote: 12
Dimensions:4.7x16.5x27.3cm
Weight:1.36kg

1785-L20C/E Description

   The 1785-L20C/E PLC-5 is a ControlNet programmable controller and processor. 

It ships with a tray containing several tools for installing the processor, including a 

1770-XYC lithium battery, 1 battery cover with a screw, 2 keys, 4 150-Ohm 

terminating resistors, 2 82-Ohm terminating resistors, 1 DIN rail connector cover, 

2 3-pin connectors, and 1 1784-CP7 cable adapter. When installing the 1785-L20C/E 

PLC-5 processor, use an approved ground point, avoid touching the connector pins and 

the backplane connector, and keep the processor in its static-shielded container when it 

is not in use to avoid electric shock and damage to the processor.

   The 1785-L20C/E has a red battery indicator light, a red/green RUN/FAULT 

indicator light, an amber force indicator light, a red/green ControlNet I/O indicator 

light, the red/green Channel 2 indicator light, and a red/green ACTIVE/FAULT Channel 

0 Communication indicator light on the front panel. Its front panel also has space for 

memory modules, a battery compartment, a key switch for selecting the processor’s 

mode, and multiple channel ports.

   The 1785-L20C/E is designed to work in an I/O chassis. Ensure that the chassis 

power is switched off before installing or removing the PLC-5 processor.

   The 1785-L20C/E has a serial port, a coprocessor port, and a control coprocessor 

expansion port. It can support up to 512 of any I/O and 512 analog I/O. Its typical scan 

time is 2 ms per keyword and its I/O scan time per rack is 10 ms at 57.6 kbit/s, and it is 

7 ms at 115.2 kbit/s. The 1785-L20C/E can support up to 16 MCPs.

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1785-L20C/E