Omron E5DC Communications Manual

6 - 55
6 Programless Communications
E5@C Digital Temperature Controllers Communications Manual (H175)
6-8 Connecting to MELSEC Q-series PLCs
6
6-8-2 Wiring
Wire the QJ71C24N-R4 to the E5CC Controllers as shown below.
Note: 1 Use a terminating resistance of at least 54 Ω.
2 The maximum transmission distance is 500 m.
3 For wiring methods, refer to 3.3 RS-422/485 Interface Specifications and 4.4.2 Connecting the
RS-422/485 Interface in the Q Corresponding Serial Communication Module Users Manual (Basic)
(SH-080006).
Set up communications on the QJ71C24N-R4 to enable communicating with the E5CC Controllers.
PLC operation will stop and the power supply will be cycled during the setup procedure. Make sure that
this will not create any problems in the controlled system.
Connecting to the PLC
(1) Connect the computer to the Q-series CPU Module and then start GX Works2.
(2) Select Online
− Read from PLC from the menu bar.
(3) Select QCPU (Q mode), and then click the OK Button.
6-8-2 Wiring
6-8-3 PLC Setup
Shield
Shield
Shield
E5CC
No.0
E5CC
No.1
E5CC
No.2
Terminating
resistance
120 Ω (1/2 W)
terminating resistance
QJ71C24N-R4
CH1
CH1
RS-422/485
SDA
SDB
RDA
RDB
SG
(FG)
RUN
NEU. NEU.
SD SD
RD RD
ERR.
CH2
13
14
B(+)
A(
−)
13
14
B(+)
A(
−)
13
14
B(+)
A(
−)
QJ71C24N-R4

Omron E5DC Specifications

General

Brand	Omron
Model	E5DC
Category	Temperature Controller
Language	English