Omron E5AN Communications Manual

Overview
1.1 Overview of Communications Methods
1-5
● E5AN/EN
● E5GN
Match the communications specifications of the E5CN/AN/EN/GN and
the host. When using a 1: N connection, set the same communications
specifications in all of the Units. (Of course, each Unit must have a
unique unit number.)
RS-485
RS-485
A (−)
B (+)
TX
RX
6.8 V
120 Ω
(1/2 W)
A (−)
B (+)
A (−)
B (+)
A (−)
B (+)
Abbreviation
Pin
Abbreviation
Pin
Abbreviation
Specify both ends of the transmission path including the host
as the end node (that is, connect terminators to both ends).
Use a terminating resistance of at least 54 Ω.
Host
E5AN/EN
Communications
transceiver
E5AN/EN
End node
RS-485
Shield
Shield
Terminator
Use a 120 Ω (1/2 W)
terminator.
A < B: "1" Mark
A > B: "0" Space
FG
+
−
SG
12
11
12
11
22
21
22
21
Host
RS-485
FG
−
+
SG
E5GN
RS-485
Pin
8
7
Abbreviation
A (−)
B (+)
E5GN
End node
RS-485
8
7
A (−)
B (+)
Terminator
120 Ω
(1/2 W)
TX
RX
6.8 V
Specify both ends of the transmission path including the host
as the end node (that is, connect terminators to both ends).
Use a terminating resistance of at least 54 Ω.
Shield
Use a 120 Ω (1/2 W)
terminator.
A < B: "1" Mark
A > B: "0" Space
Communications
transceiver
Pin
Abbreviation
Shield
Abbreviation

Omron E5AN Specifications

General

Brand	Omron
Model	E5AN
Category	Temperature Controller
Language	English