PROGRAMMABLE DISPLAY WHS1 Standard Model
10
4.1.4 Interface
■ Serial Port
Item
Specifications
RS-232C type
RS422 / RS485 type
Communication standard
Conforms to RS-232C
(Non insulation type)
Conforms to RS-422 /RS-485
(Non insulation type)
Port number
1CH
*software configurable
Conditions for
communication
with external
devices
Baud rate (bits/s)
1200/2400/4800/9600/
19200/38400/57600/115200
(Note 1)
1200/2400/4800/9600/
19200/38400/57600/115200
(Note 1)
Data bits (bits)
7/8
7/8
Parity
none/even/odd
none/even/odd
Stop bit (bit)
1/2
1/2
Transmission distance (Total length)
Max. 15m
(Baud rate: 19,200 bps)
Max. 500m
(Baud rate: 115,2 kbps)
Terminal resistance value
－
No Termination (Note 2)
Protocol
Refer to
xAscender Studio User's Manual (Communication)
.
Connector
D-sub 9 Pin (Female)
(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.
