Chapter 2 – Specifications
GLC2400/2500/2600 Series User Manual
2–6
Pin Assignments
Pin #
Signal
Name
Condition
1
FG
Frame ground
2
SD
Send data (RS-232C)
3
RD
Receive data (RS-232C)
SIO
4
RS
Request send (RS-232C)
5
CS
Clear send (RS-232C)
6
DR
Data Set Ready (RS-232C)
7
SG
Signal ground
8
CD
Carrier detect (RS-232C)
9
TRMX
Termination (RS-422)
10
RDA
Receive data A (RS-422)
11
SDA
Send data A (RS-422)
12
NC
No connection (Reserved)
13
NC
No connection (Reserved)
14
VCC
5V±5% output 0.25A
15
SDB
Send data B (RS-422)
16
RDB
Receive data B (RS-422)
17
RI
Ring Indicate (RS-232C)
18
CSB
Clear send B (RS-422)
19
ERB
Enable receive B (RS-422)
20
ER
Enable receive (RS-232C)
21
CSA
Clear send A (RS-422)
22
ERA
Enable receive A (RS-422)
23
NC
No connection (Reserved)
24
NC
No connection (Reserved)
25
NC
No connection (Reserved)
Recommended Parts
Connector
Dsub25pin plug XM2A-2501
(OMRON)
Cover
Dsub25pin cover XM2S-2511
(OMRON)
Jack Screws
XM2Z-0071
(OMRON)
Cable
CO-MA-VV-SB5PX 28AWG
(Hitachi Cable Ltd.)
Use rough metric type M2.6x0.45 p threads used to secure
the cable’s set screws.
To confirm your PLC’s connection specifications , refer to the
GP-
PRO/PBIII for Windows Device/PLC Connection Manual
(included
with the screen creation software)
1
13
25
14
This interface can be either RS-232C or RS-422. Connects GLC to Host (PLC).
This interface uses a socket-type connector.
2.3
Interface Specifications
2.3.1 Serial Interfaces