Omron E5CC Communications Manual

6 - 67
6 Programless Communications
E5@C Digital Temperature Controllers Communications Manual (H175)
6-9 Connecting to MELSEC-FX-series PLCs
6
6-9-2 Wiring
Set the terminating resistance switch on the front panel of the FX3U-485ADP-MB to 110 Ω.
Wire the FX3U-485ADP-MB 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 4.5.1 One-pair wiring under D.Computer Link in the FX Series User’s Manual,
Data Communication Edition (JY997D16901).
Set up communications on the FX3U-485ADP-MB 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 FX-series CPU Module with a USB cable and then start
GX Works2.
(2) Select Online
− Read from PLC from the menu bar.
(3) Select FXCPU, and then click the OK Button.
6-9-2 Wiring
6-9-3 PLC Setup
330 Ω
OPEN
110 Ω
FX3U-485ADP-MB
SDA
SDB
RDA
RDB
SG
Shield Shield Shield
13
14
E5CC
No.0
E5CC
No.1
E5CC
No.2
B(+)
A(
−)
13
14
B(+)
A(
−)
13
14
B(+)
A(
−)
120 Ω (1/2 W)
terminating resistance

Omron E5CC Specifications

General

Number of Display Digits	4 digits
Number of Control Outputs	1
Control Method	ON/OFF
Input Type	Thermocouple, RTD, Analog voltage, Analog current
Supply Voltage	100 to 240 VAC
Output Type	Relay, Voltage, Current
Display Type	LCD
Size	48 x 48 mm
Mounting Method	Panel mount
Control Output	Relay, Voltage, Current
Alarm Output	Relay
Communication	RS-485
Ambient Operating Temperature	-10 to 55°C
Ambient Operating Humidity	25% to 85% RH
Protection Rating	IP66