ABB M1M 20 - Page 11

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M1M 20 POWER METER USER MANUAL
Climatic conditions
Operating temperature -5 to 55 °C (K55 IEC61557-12)
Storage temperature -25 to 70 °C (K55 IEC61557-12)
Environment
It is prohibited to use in the environment
containing H2S, Cl2, NH3 and other harmful
gases
Communication protocol
Modbus RTU M1M 20 MODBUS, M1M 20 I/O
Communication interface RS485 with optical isolation
Baud rate 9.6, 19.2, 38.4, 57.6, 115.2 kbps
Parity number
Odd (1 stop bit), Even (1 stop bit), None (1 or 2
stop bits)
Address 1-247
Connector 3 pole terminal
Modbus TCP/IP M1M 20 ETHERNET
Protocol Modbus TCP/IP
Communication interface RJ45
Standards
Power metering and monitoring devices (PMD) IEC 61557-12
EMC IEC 61326-1
Electrical safety IEC 61010-1