Pro-face GP2500-TC41-24V Installation Manual page 7

4 Interfaces
Serial Interface (HOST-I/F)
This interface is used to connect the GP to the host (PLC), via an RS-232C or RS-
422 cable.
Pin Arrangement
1
13
Recommended Connector: Dsub 25 pin plug XM2A-2501 <made by OMRON Corp.>
Recommended Cover
Recommended Cable
• This GP unit's serial port is not isolated. When the host (PLC) unit is
also not isolated, and to reduce the risk of damaging the RS-422 circuit,
be sure to connect the #7 SG (Signal Ground) terminal.
• Pin #14 (VCC) DC 5V Output is not protected. To prevent damage or unit
malfunction, use only the designated level of current.
• Inside the GP unit, the SG (Signal Ground) and FG (Frame Ground) ter-
minals are connected to each other.
• When connecting an external device to the GP with the SG terminal,
ensure that no short-circuit loop is created when you setup the system.
Signal
Pin #
Name
1
2
3
4
5
6
7
8
9 TRMX
14
10 RDA
11 SDA
12
13
14 VCC
15 SDB
16 RDB
25
17
18 CSB
19 ERB
20
21 CSA
22 ERA
23
24
25
: Dsub 25 pin Cover XM2S-2511 <made by OMRON Corp.>
Jack Screw XM2Z-0071 <made by OMRON Corp.>
: CO-MA-VV-SB5P x 28AWG
<made by HITACHI Cable Ltd.>
FG Frame Ground
SD Send Data (RS-232C)
RD Receive Data (RS-232C)
RS Request to Send (RS-232C)
CS Clear to Send (RS-232C)
DR Data Set Ready (RS-232C)
SG Signal Ground
CD Carrier Detect (RS-232C)
Termination (RS-422)
Receive Data A (RS-422)
Send Data A (RS-422)
NC No Connection(Reserved)
NC No Connection(Reserved)
5V±5% Output 0.25A
Send Data B (RS-422)
Receive Data B (RS-422)
RI Ring Indicate (RS-232C)
Clear to Send B (RS-422)
Enable Receive B (RS-422)
ER Enable Receive (RS-232C)
Clear to Send A (RS-422)
Enable Receive A (RS-422)
NC No Connection(Reserved)
NC No Connection(Reserved)
NC No Connection(Reserved)
Meaning