2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15
Page 4
1.2 Features
1.2.1 Connections
Gateway has following communication ports:
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2 x Serial RS232 port to read energy meter’s data by master Modbus RTU
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1 x Serial RS485 port to connect up to four energy meter
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1 x Ethernet port to read Energy meter’s data by client Modbus TCP
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1 screw connector to supply gateway 10-30 VDC (min. 2 W)
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Front Signal LED for communication diagnostic
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2 x Digital Input (*)
•
2 x Digital Output (*)
(*) Their status is mapped in Modbus registers.
1.2.2 Digital Input connection
The schema of two digital input/output connection is:
