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User wants to use ION meter with Modbus master to Modbus master, through the serial port, an Ethernet device via an EGX100.
EGX100, EGX300, ION7X50, ION8XXX, PM800ECC
PME Designer, and EGX webserver
Proper configuration is required before an ION meter can Modbus master an Ethernet slave of an EGX100.
Note: for ION7650/7550 meters, Modbus Mastering via TCP/IP connections was added in firmware V366.
For this example, the physical set up is accomplished by doing the following:
(1) connect the EGX100 to COM 1 of the 7650 (with V350 firmware) using RS485 with no line bias, and;
(2) connect to a PM800ECC via Ethernet (the PM8ECC uses the COM1 ID for modbus TCP traffic on COM3-the Ethernet port).