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© 2010 Schneider Electric. All rights reserved. Page 19
ION Setup User Guide Introduction
ION7550 / ION7650 Modbus gateway
ION7550 / ION7650 meters (firmware v350 or later) also support Modbus gateway
communications. This allows you to use the meter to provide Modbus RTU
communications support for up to 16 downstream Modbus RTU devices on the
same serial communications loop.
When you configure the meter as a Modbus gateway (in addition to the general
settings listed above), the protocol for the serial communications port must be set
to Modbus Master. You do not need to set the TCP/IP port; for Modbus TCP
communications, the Ethernet IP port is hard-coded to port 502 on ION7550/
ION7650 meters.
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