Table of Contents
Advertisement
Specifications
Specifications of Serial Interface COM1
Introduction
Serial Interface COM1
90
NOTE: For instructions on how to connect to other devices, always refer to the "GP-
Pro EX Device/PLC Connection Manual".
The serial port is not isolated. The SG (signal ground) and FG (frame ground)
terminals are connected inside the GP unit.
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.
GP-4401T / GP-4401WW: D-Sub 9 pin plug connector via an RS-232C cable.
Pin Connection
5
9
6
1
(GP unit side)
*1
NOTE:
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
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
Advertisement
Table of Contents
