Your PanelMate unit is equipped with isolated
serial ports for improved communications
reliability. If you are replacing a 120VAC Power
Series unit or a Power Series 1500 unit, and are
using an RS422 or RS485 cable for PLC
communications, you may need to install a new
cable equipped with a ground wire. Consult
your PLC communications driver manual or
contact Cutler-Hammer Technical Support for
more information.
Connection to Serial Ports
Serial Port Termination
Serial Port 1 may be used for a printer, for PLC (or
Host) communications, or for connection to a
personal computer for upload or download. Serial
Port 2 may be used for a printer or, for PLC (or Host)
communications.
Selection of Port 1 for a serial printer must be done
with the Configuration Software. Refer to the PLC
Name and Port Table topic in the Configuration
Software Online Help and in the PanelMate
Configuration Editor User's Guide.
Your PanelMate unit is sent without termination. For
serial port termination switch locations, refer to
Figure A. Recommended termination for RS232,
DH485 and RS422 communication is shown in the
table. For setting the termination on Serial Port 1,
use the termination switch on the left of Serial Port 1.
For setting the termination on Serial Port 2, use the
termination switch to the right of Serial Port 2.
Pin
Description
1
RS422 Transmit Data (+) (Output)
2
RS232 Receive Data (Input)
3
RS232 Transmit Data (Output)
4
RS422 Receive Data (+) (Input)
5
Signal Ground
6
RS422 Transmit Data (-) (Output)
7
RS232 Request to Send (Output)
8
RS232 Clear to Send (Input)
9
RS422 Receive Data (-)
Communication Position
Termination
RS232
1
None (factory setting)
DH485
4
120 Ohm AC coupled
RS422/RS485
2 & 3
Refer to your PLC
Communications Driver
Manual for termination
information
1
2
3
6
7
8
9
4
5
Figure A
24V
+ -
KYSW
SERIAL PORT 1
SERIAL PORT 2
FAULT RELAY
AUDIO
N/C
120 AC
W
120W
220W
NONE
/RS232
1
2
3 4
120 AC
W
120W
220W
NONE
/RS232
1
2
3 4
