Deif AGC-3, Руководство по установке

Страница: 57 / 65

The RS-485 Modbus lines need end resistors (end terminators) when the bus length exceeds 30
m. If end resistors are needed, we recommend to install them like this:
Multi-line 2
D
AT
A
+
(
A
)
29 3 0 31
D
AT
A
(G
N
D
)
D
AT
A
- (
B
)
Multi-line 2
D
AT
A
+
(
A
)
29 3 0 31
D
AT
A
(GN
D
)
D
AT
A
- (
B
)
Multi-line 2
D
AT
A
+
(
A
)
29 3 0 31
D
AT
A
(G
N
D
)
D
AT
A
- (
B
)
D
A
T
A
-
(
B
)
PLC or oth er device
D
A
T
A
(
GN
D
)
D
AT
A
+
(
A
)
1nF (10V min)
120ohms
1nF (10V min)
120ohms
1/4W
1/4W
Cable: Belden 3105A or equivalent. 22 AWG (0.6 mm
2
) twisted pair, shielded, <40 mΏ/m, min.
95 % shield coverage.
AGC-3 installation instructions 4189340728
UK Wirings
DEIF A/S Page 57 of 65