Omron E5EC Communications Manual

1 Communications Methods
1 - 6
E5@C Digital Temperature Controllers Communications Manual (H175)
E5@C-B (Models with Push-In Plus Terminal Blocks)
Abbreviation
Host
RS-485
AbbreviationPin
20
19
18
17
E5@C-B
RS-485
Shield
Terminating
resistance
120
Ω
(1/2 W)
6.8 V
TX
RX
Use 120
Ω (1/2 W)
terminating resistance.
Communications transceiver
Shield
E5@C-B
End node
RS-485
AbbreviationPin
20
19
18
17
A < B: “1” Mark
A > B: “0” Space
* Terminals 17 and 18 and terminals 19 and 20 are
connected internally. You can connect to either terminal.
FG
−
+
SG
A (−)
A (−)
B (+)
B (+)
A (−)
A (−)
B (+)
B (+)
Specify both ends of the transmission path
including the host as the end nodes (that
is, connect terminating resistance to both
ends). Use a terminating resistance of at
least 54
Ω.

Omron E5EC Specifications

General

Mounting Type	Panel Mount
Display Resolution	0.1°C or 1°C
Control Method	ON/OFF
Input Type	Thermocouple, RTD, Analog voltage
Supply Voltage	100 to 240 VAC
Output Type	Relay, Voltage, Current
Size	48 x 96 mm
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	IP20