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8/4 ABB MOTOR PROTECTION AND CONTROL

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Built-in connectivity

Communication via embedded Modbus RTU

The smart temperature monitoring relay CM-TCN.012 supports the data transfer
using the Modbus RTU communication protocol. The communication interface
RS-485 is embedded in the relay and does not require installation of any accessories.

The communication interface makes it possible to:

Read the temperature measurements, Reset the history and settings
relays state and temperature sensors (trip counter, event history, etc)
status.

08

Access the condition monitoring data Read system information (serial
such as event history, operating hours number, firmware version)
counter, maintenance counter, statis-
tics.

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CM-TCN manual
Modbus communication map and information about
the device configuration can be found in the CM-TCN user Configure the smart monitoring Control output relays and trigger
manual
relay remotely. them in case of the communication
bus error

Client Server 1 Server 2 Server N