Specifications Of Serial Interface Com1 - Pro-face GP-4400 Series Hardware Manual

Specifications of Serial Interface COM1

Introduction
NOTE: For instructions on how to connect to other devices, always refer to the "GP-
Pro EX Device/PLC Connection Manual".
The COM1 ports of GP-4201T and GP-4201TW are not isolated. The SG (signal
ground) and FG (frame ground) terminals are connected inside the GP unit.
Serial Interface COM1
GP-4201T: D-Sub 9 pin plug connector via an RS-232C or RS-422/RS-485 cable.
NOTE:
ELECTRIC SHOCK
When using the SG terminal to connect an external device to the panel:
Verify that a short-circuit loop is not created when you set up the system.
Connect the #5 SG terminal to remote equipment when the host (PLC) unit is
not isolated. Connect the #5 SG terminal to a known reliable ground connection
to reduce the risk of damaging the circuit.
Failure to follow these instructions will result in death or serious injury.
Pin Connection
5
9
6
1
(GP unit side)
*1
You can switch pin #9 between RI and VCC via software.
EQUIPMENT DAMAGE
Use only the rated current.
Failure to follow these instructions can result in equipment damage.
DANGER
Pin RS-232C
No.
Signal Name
1 CD
2 RD(RXD)
3 SD(TXD)
4 ER(DTR)
5 SG
6 DR(DSR)
7 RS(RTS)
8 CS(CTS)
9 CI(RI)/VCC
Shell FG
NOTICE
GP4000 Series Hardware Manual
Direction Meaning
Input Carrier Detect
Input Receive Data
Output Send Data
Output Data Terminal Ready
- Signal Ground
Input Data Set Ready
Output Request to Send
Input Send possible
Input/– Called Status Display
+5V±5% Output 0.25A
– Frame Ground (Common
with SG)
*1
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