Chapter 8 Appendix
8-22
Writing to Ethernet Communication Network (EWX)
The SJ Ether Network Master reads data from its own memory and writes data to the memory in a slave device connected to
the network using a write command (EWX). This command allows the user to specify the following items:
The following describes the protocol: MODBUS(Modbus/TCP).
・
CPU communication port number specifies port 3 (K3) of SJ-Ether.
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The other station number specifies the slave station address (0 to 255).
If there is no station number or station number setting item in the slave device,
specify that this item is K0.
・
Function code: The MODBUS/TCP function codes supported by the EWX command are as follows:
05-single coil forcing
06-a single register preset
15-Multi-coil forcing
16-Preset of multiple registers
・
The other device's memory address specifies the slave device start memory address to which data is written. For details, see
Summary of Contents for Kostac SJ-Ether Series
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