Panasonic FPS Series, User Manual

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FP Σ User's Manual
8.3 Communication Specifications
163
8.3 Communication Specifications
Overview of communication modes, interfaces, and communication cassettes
MEWTOCOL-COM
Master/Slave
1)
Program controlled
1)
Modbus RTU
Master/Slave
1)
Communication
Mode
1:1 1:N 1:1 1:N
PLC
Link
2)
1:1 1:N
Interface RS232C RS485 RS232C RS485
RS232C
RS485
RS232C RS485
Device
FPG-
COM1
COM2
COM4
FPG-
COM3
COM4
FPG-
COM1
COM2
COM4
FPG-
COM3
COM4
FPG-
COM1
COM2
COM3
COM4
FPG-
COM1
COM2
COM4
FPG-
COM3
COM4
Communication
method Half-
duplex
2-wire,
half-
duplex
Half-
duplex 2-wire, half-
duplex
Token bus
(floating
master)
Half-
duplex 2-wire,
half-duplex
1)
Although the communication cassette has adequate noise protection, the user program should execute a
retransmission when a communication error occurs. This improves reliability of the communication when
communication errors due to excessive noise occur or when the receiver equipment cannot receive
temporarily.
2)
For RS232C connections, the maximum number of stations is 2.
Communication specifications
Interface RS232C (non-isolated) RS485 (isolated)
1) 2)
Communication mode
1:1 1:N
Communication method
Half-duplex 2-wire, half-duplex
Synchronous method
Start stop synchronous system
Transmission line
Multicore shielded line Shielded twisted-pair cable or VCTF
Transmission distance
15m ≤
1200m
Baud rate
3) 8) 9)
2400, 4800, 9600, 19200, 38400, 57600, 115200bit/s
MEWTOCOL-COM
ASCII, JIS7, JIS8
Program controlled
ASCII, JIS7, JIS8, Binary
Transmissi
on code
Modbus RTU
Binary
Communication format (set in
system registers)
4)
Data length: 7 bits/8 bits
Parity: None/Odd/Even
Stop bit: 1 bit/2 bits
End code: CR/CR+LF/None/ETX
Start code: No STX/STX
No. of connected stations
5) 6) 7)
2
≤ 99 ( ≤ 32 with C-NET adapter)
1)
The number of stations, transmission distance, and baud rate may vary depending on the connected RS485
device.