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6-8-2
Wiring
Wire the QJ71C24N-R4 to the E5CD Controllers as shown below.
QJ71C24N-R4
QJ71C24N-R4
RUN
ERR.
NEU.
NEU.
SD
SD
CH1
CH2
RD
RD
CH1
RS-422/485
SDA
SDB
RDA
RDB
SG
Terminating
resistance
(FG)
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).
6-8-3
PLC Setup
Set up communications on the QJ71C24N-R4 to enable communicating with the E5CD 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
(3) Select QCPU (Q mode), and then click the OK Button.
E5@D Digital Temperature Controllers Communications Manual (H225)
Shield
Shield
B(+)
13
14
−
A(
)
E5CD
No.0
−
Read from PLC from the menu bar.
6 Programless Communications
120 Ω (1/2 W)
terminating resistance
B(+)
Shield
B(+)
13
13
14
14
−
−
A(
)
A(
)
E5CD
E5CD
No.1
No.2
6
6 - 55
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