Omron SYSMAC CS Series Operation Manual page 819

CJ1W-CIF11 RS-422A Converter
DIP Switch Settings, Wiring, and Installation
Setting the DIP Switch
The DIP switch settings must be changed to perform communications according to settings other than the
default settings.
1. Remove the DIP switch cover using a flat-bladed screwdriver in the way shown below.
Note Press the cover gently while removing it to prevent it from popping out suddenly.
2. Using a fine pair of tweezers or other tool with a fine point, change the settings of the DIP switch pins to
match the desired communications conditions.
3. Be sure to remount the cover after finishing the DIP switch settings.
All the pins are factory-set to OFF.
Wiring the RS-422A/485 Terminal Block
• Use either two-wire or four-wire shielded cable.
Recommended cable: CO-HC-ESV-3P×7/0.2 (Hirakawa Hewtech)
• Connect the shield wire at both ends of the cable carrying RS-422A/485 signals to ground, and ground the
ground terminal on the Power Supply Unit of the CPU or Expansion Rack to 100 Ω max.
1. Taking care not to damage the shield, strip between 30 and 80 mm of sheath off the end of the cable.
30 to 80 mm
2. Carefully twist the shield mesh together to form a single wire, and carefully cut off the material surrounding
the signal wires and any unnecessary signal wires.
O
1
N
2
3
4
5
O
6
N
Appendix G
781