Chapter 4 Basic Setting
4-5
4.3 How to Set Basic Parameter
Communication function used in Cnet I/F module is classified as followings.
1) Server mode service
Without other program at PLC, you can read or write information in PLC and data.
It can act as XGT server providing XGT dedicated protocol and Modbus server providing
RTU/ASCII protocol.
2) Client (P2P) service
Cnet I/F module acts as client in network.
In case designated event occurs, you can read or write memory of other station.
It can act as XGT client and Modbus client.
In case of sending/receiving user wanted frame and communicating with other device.
You can define P2P block with max. 32 per one channel acting independently.
3) Loader service
By using remote 1/2, you can monitor/download program about remote PLC.
To use Cnet I/F module, you should set transmission specification such as data type like transmission
speed and data/stop bit.
You should select transmission specification of system to be same with specification of system.
Written standard setting value is saved CPU module of PLC and this value keeps though power goes
off and this value is not changed before writing. Also though Cnet I/F module is changed and new
module is installed, the standard setting value saved at CPU module previously written is applied to
new module automatically. Standard communication setting parameter and P2P, all parameter is
applied if download is complete.
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