Omron E5CN-H

Overview
1.1 Overview of Communications Methods
1-5
● E5CN-H
● E5AN/EN-H
Match the communications specifications of the E5CN/AN/EN-H 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.)
FG
−
+
SG
RS-485
RS-485
A (−)
B (+)
12
11
A (−)
B (+)
12
11
TX
RX
6.8 V
120 Ω
(1/2 W)
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 side
E5CN-H
E5CN-H
End node
RS-485
Shield
Shield
Terminator
Use a 120 Ω (1/2 W)
terminator.
A < B: "1" Mark
A > B: "0" Space
Communications
transceiver
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 side
E5AN/EN-H
Communications
transceiver
E5AN/EN-H
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