(2) Description of the sample program
s parameters and sending data area are configured at the first scan (R7E3).
When R0 is set ON, TRNS 9 is executed then port 2 in slot A, unit 4 is configured as following table.
(In this example, when initial setting of EH-SIO is completed, initial setting completion flag X4A29 is set ON.
Once Modbus slave mode is configured, this mode will be kept after CPU is in STOP status. In this sample program,
initial setting program works only when initial setting has not been configured yet.)
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