Recommendations on networking
● Use shielded twisted pair cable to connect RS485 links.
● ModBus cable should be adequately away from power cables (30 cm in mini-
mum).
● Avoid crossing of ModBus cables and power cables and use orthogonal cross-
ing if crossing must be used.
● The shielding layer of cables should be connected to protected ground or to
equipment ground if the equipment ground has already been connected to
protected ground. Do not directly ground any point of the RS485 network.
● In no circumstance should ground cables constitute a loop.
Bosch Rexroth AG
Communication Protocols
EFC 3600
200/259
DOK-RCON03-EFC-3600***-IT03-EN-P
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