Omron E5CN-HT User Manual page 62

Wiring Terminals
40
E5AN/EN-HT
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.
RS-232C
• When communications are to be used with the E53-CN@01N2 for the
E5CN-HT, or the E53-EN01 for the E5AN/EN-HT, connect communica-
tions cable across terminals 11 to 13.
SD
RD
RS-232C
SG
E53-CN@01N2 (for E5CN-HT)
E53-EN01 (for E5AN/EN-HT)
Host computer
RS-232C: 25-pin
SD (TXD) 2
RD (RXD)
3
RS (RTS) 4
CS (CTS) 5
6
DR (DSR)
SG 7
ER (DTR) 20
1
FG
Shield
E5AN/EN-HT (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
Host computer (DOS/V)
E5@N-HT
RS-232C: 9-pin
RS-232C
No.
RD (RXD) 2
11 SD
SD (TXD) 3
12 RD
ER (DTR)
4
13 SG
SG
5
6
DR (DSR)
RS (RTS) 7
8
CS (CTS)
Section 2-2
E5AN/EN-HT (No. 31)
RS-485
No.
Abbreviation
22 A ( )
21
B (+)
12
A ( )
11
B (+)
Terminator (120 , 1/2 W)
2
2
E5@N-HT
RS-232C
No.
11 SD
12
RD
13 SG