20 CT-600-2
NOTICE
Please observe the change in the Modbus connections, and connect according section . Remove the
120 Ω end resistor in the oil separator module (CM-IO) if one is present, and fit one in the Modbus RTU
connection on economizer system module.
7.5 Modbus RTU wiring and connection
The Modbus RTU network is proprietary for the ACP LINK only and may not be connected to other devices.
The maximum cable distance between devices on the Modbus RTU network is 100 m. Modbus cable type
and installation must be carried out in accordance with IEC-norm. As example, Belden 3106A cable can be
used however other types of cable with equivalent characteristics can also be used.
Modbus RTU network overview without economizer
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ACPLink
Panel
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