Interface - Panasonic WHA1 Series User Manual

4.1.4 Interface

■ Serial Port
Item
Communication standard
Port number
Conditions for
communication
with external
devices
Transmission distance
(Total length)
Terminal resistance value
Protocol
Connector
(Note 1) Depend on PLC.
Please check with the actual devices when some commercial devices with RS485 interface
are connected. The number of connected devices, transmission distance, and transmission
speed may be different according to using transmission line.
(Note 2) When connected to the termination, it is recommended that a 120Ω, 1/2W or better
termination resistor be connected between the communication lines.
Baud rate (bits/s)
Data bits (bits)
Parity
Stop bit (bit)
PROGRAMMABLE DISPLAY WHA1 Advanced Model
RS-232C type
Conforms to RS232C
(Non insulation type)
1CH *software configurable
1200/2400/4800/9600/
19200/38400/57600/115200
(Note 1)
7/8
none/even/odd
1/2
Max. 15m
(Baud rate: 19,200 bps)
－
Refer to xAscender Studio User's Manual (Communication).
Connector provided with the unit.
11
Specifications
RS-422 / RS-485 type
Conforms to RS-422 / RS-485
(Non insulation type)
1200/2400/4800/9600/
19200/38400/57600/115200
(Note 1)
none/even/odd
Max. 500m
(Baud rate: 115,2 kbps)
No Termination (Note 2)
7/8
1/2