Setting communication parameters
Setting for Baud rate and communication format
The settings for baud rate and communication format of the COM port are entered using the FPWIN GR.
Select “Options” in the menu bar, and then select “PLC Configuration”. Click “COM Port”. There are
separate tabs for setting the COM1 and COM2 .
Note:
• As the default of the COM2 port is “Internal USB”, select “COM. cassette”.
• When the MEWTOCOL master is used, also select “Computer Link”.
Dialog box of PLC system register setting
No. 410 (for COM1 port), No. 411 (for COM2 port) unit number
The unit number can be set within a range of 1 to 99.
No. 412 Communication mode
Select the COM port operation mode:
Click on
, and select “Computer Link”.
No. 413 (for COM1 port), No. 414 (for COM2 port) Communication Format setting
Default setting:
Char. Bit …………… 8 bits
Parity ………………. Odd
Stop Bit ……………. 1 bit
Terminator ………… CR
Header …………….. STX not exist
To change the communication format to match an external device connected to the COM port, enter the
settings for the various items.
No. 415 Baud rate (communication speed) setting
The default setting for the communication speed for the various ports is 9600 bps. Change the value to
match the external device connected to the COM port:
Click on
, and select one of the values from 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bps.
Restrictions
The COM port of the communication cassette supports all the commands of the MEWTOCOL-COM.
There is no restriction.
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