Omron E5CN User Manual page 58

Wiring Terminals
E5AN/EN
Host computer
RS-485
−
+
FG
A < B: [1] Mark
A > B: [0] Space
• The RS-485 connection can be either one-to-one or one-to-N. A maxi-
mum of 32 Units (including the host computer) can be connected in one-
to-N systems. The maximum total cable length is 500 m. Use AWG24
(cross-sectional area: 0.205 mm
2
2.081 mm ) shielded twisted-pair cable.
Shield
E5AN/EN (No. 1)
RS-485
No.
Abbreviation
A (−)
22
21
B (+)
12 A (−)
11
B (+)
2
) to AWG14 (cross-sectional area:
Cross-sectional area of
conductor
AWG24: 0.205 mm
AWG14: 2.081 mm
Section 2-2
E5AN/EN (No. 31)
RS-485
No.
Abbreviation
22 A (−)
21
B (+)
12
A (−)
11
B (+)
Terminator (120 Ω, 1/2 W)
2
2
33