Panasonic FPS Series User Manual page 200

FPΣ User's Manual
the connected device should not send a response to the FPΣ before the time t indicated below
has passed.
Baud rate Response time
19200bit/s t > 1ms
115200bit/s
t > 200μs
System register settings
For 1:N MEWTOCOL-COM communication, the system registers for COM port 1 should be
set as shown below.
No. Name
410 COM port 1 - station number
412 COM port 1 - communication mode
413 COM port 1 - communication format
415 COM port 1 - baud rate
NOTE
•
The communication format and baud rate of the PLC should be set to match
the connected device.
•
When the RS485 port (COM port 1) of FPG-COM4 is used, set the baud rate
in the system registers to either 19200bit/s or 115200bit/s. Set DIP switch
SW1-2 of the cassette to the same setting (see page 162).
•
When setting the station number using the system registers, be sure to set
the switch on the unit to 0.
•
FPG-COM3: Bridge the E terminal and the free (-) terminal on the first and
on the last station of the transmission line to terminate the data bus.
FPG-COM4: Set SW1-1 to ON on the first and on the last station of the
transmission line to terminate the data bus. There is no terminating resistor
at the RS232C port.
•
C-NET adapter: Set the DIP switches to terminate the data bus.
Programming
There is no programming required on the slave. Only the station number and the
communication parameters must be set in the system registers. The program for the master
side must send and receive commands according to the MEWTOCOL-COM protocol.
MEWTOCOL-COM contains the commands used to control and monitor the slave operation.
If a software program such as PCWAY is used on the computer side, PLC data can easily be
read and written without having to think about the MEWTOCOL-COM protocol.
8.5 MEWTOCOL-COM
Set value
1 to 99 (with C-NET adapter, a maximum of
32 stations is possible)
MEWTOCOL-COM Master/Slave
Data length: 7 bits/8 bits
Parity: None/Odd/Even
Stop bit: 1 bit/2 bits
End code: CR
Start code: No STX
2400–115200bit/s
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