Panasonic FP2 Series, User Manual

Page: 80 / 102

FP2 Serial Data Unit
Specifications
7 − 4
7.1 Tables of Performance Specifications
Communication specifications
Item Specifications
Interface RS232C, 2 ports
Transmission speed 4800/9600/19200bit/s, Selecting possible using dip switch (
*
Note)
Communication method Half duplex
Synchronous method Start − stop synchronous method
Transmission code ASCII
Transmission data format Stop bit length: 1bit ( * Note)
Parity check: Valid (odd) ( * Note)
Data length: 7 bits/8 bits, Selecting possible using dip switch
Data transmission order Low bit first (bit position 0) in units of characters
Transmission unit In unit of messages to end code (length can be changed.)
Start code Invalid ( * Note)
End code C
R
(H0D) ( * Note)
Max. message length Max. 500 characters/1 frame (including end and start codes)
Interface with FP2 CPU unit Shared memory method
F150 (READ) and F151 (WRT) instructions used for reading and writing
Number of I/O occupied 32 points (16SX, 16SY allocation)
Notes
•
For the transmission speed (300/600/1200/2400 bps), the stop
bit length (2 bits), the parity check (invalid/even), the start code
(STX (H02)), and the end code (any code/C
R
and LF/ETX),
program − based settings are required.
•
Connecting the serial data unit to an RS232C device
Using a shielding cable, connect the RS232C connector of the
RS232C device to the COM. port connector (9 pins) of the
serial data unit.