Armstrong DRV40 Installation And Operation Manual - Page 9

Browse online or download pdf Installation And Operation Manual for Controller Armstrong DRV40. Armstrong DRV40 16 pages. Modbus networking
Also for Armstrong DRV40: Troubleshoot Manual (5 pages)

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Connecting to the Modbus port (DRV25)

Modbus

Connector

(CN7)

Modbus

End of Line

Termination

(CN10)

DRV

Data Cable

An end of line termination jumper (CN10) is provided in instances where long cable distances or transmission line reflections

are causing poor/unreliable connections. If necessary, fit a jumper across the pins to connect the provided termination resistor

into the circuit.

Armstrong International

IOM-776

Brain

Modbus Networking

Figure 7

CAT 5

Cable

Figure 8: Recommended Cable Arrangement