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Goals and Symptoms
What is the pinout for connecting to a 984 CPU using Modbus?
Facts and Changes
9 pin to 9 pin
Causes and Fixes
The Modbus (DB9 to DB9) pinout is as follows:
Pins 2 and 3 will cross,
Pin 5 Straight through,
Pins 4 and 6 will cross,
Pins 7 and 8 jumper back to each other on both sides.
Released for: Schneider Electric Vietnam
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