Examples Of 1:1 Connections To Rs-232C Ports; Connecting To E5Ck Temperature Controllers - Omron CJ2 CPU UNIT User Manual

Port
RS-422A/485
RS-422A/485
Note 1 The maximum cable length for an RS-232C connection is 15 m. RS-232C communications specifications,
however, do not cover transmissions at 19.2 Kbps. Refer to documentation of the device being connected
when using this baud rate.
2 The CP1W-CIF11 RS-422A/485 Option Board is not isolated. The maximum transmission distance is
therefore 50 m. If the distance exceeds 50 m, use the isolated CP1W-CIF12, or connect the isolated NT-
AL001 RS-422A Link Adapter to the RS-232C port on the CP1W-CIF01 RS-232C Option Board. If you use
one of these methods, the maximum total transmission distance will be 500 m.
3 The maximum cable length for connecting to the NT-AL001 is 2 m.
4 The maximum branch cable length is 10 m.

Examples of 1:1 Connections to RS-232C Ports

Connecting to E5CK Temperature Controllers

CPU Unit
RS-232C Option Board
Pin No.
Signal name
FG 1
SD 2
RD 3
RS 4
CS 5
DR 7
ER 8
SG 9
D-sub, 9-pin
connector (male)
CJ2 CPU Unit Hardware User's Manual
Connection
type
1:1
1:N
Example: E5CK (OMRON Temperature Controller)
RS-232C
RS-232C: Terminal block
shield
Terminal
Diagram
RS-422A/485
NT-AL001
RS-232C
RS-422A/
Terminating
485
resistance ON
+5 V required
RS-422A/485
Terminating
resistance ON
B500-AL001
RS-422A/485
Terminating
resistance ON
NT-AL001
Terminating
resistance ON
RS-422A/485
Terminating
resistance ON
+5 V required
Signal name
13 SD
14 RD
1 SG
Appendices
RS-422A/485 I/F
RS-232C I/F
RS-422A/485 I/F
Terminating
resistance ON
RS-422A/485 I/F
Terminating
resistance ON
RS-232C I/F
RS-232C
RS-232C
RS-232C
A-125