Omron CP1E Series User Manual page 82

3 Part Names and Functions
DIP switch for operation settings
3-18
Pin
1 ON ON (both ends)
OFF OFF
2 ON 2-wire connections
OFF 4-wire connections
3 ON 2-wire connections
OFF 4-wire connections
−
4
5 ON RS control enabled
OFF RS control disabled (Data
always received.)
6 ON RS control enabled
OFF RS control disabled (Data
always sent.)
*1 Set both pins 2 and 3 to either ON (2-wire) or OFF (4-wire).
*2 To disable the echo-back function, set pin 5 to ON (RS control enabled).
*3 When connecting to a device on the N side in a 1: N connection with the 4-wire method,
set pin 6 to ON (RS control enabled).
Also, when connecting by the 2-wire method, set pin 6 to ON (RS control enabled).
Setting
Terminating resistance selection
2-wire or 4-wire selection*
2-wire or 4-wire selection*
−
Not used.
RS control selection for RD*
RS control selection for SD*
CP1E CPU Unit Hardware User's Manual(W479)
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