BV 7040 (0508)
All rights reserved. Equipment subject to change without notice: 153
HIMA Paul Hildebrandt GmbH + Co KG, P.O. Box 1261, 68777 Brühl
BV 7040
BV 7040: Data connecting cable
Connection of the bus terminal H 7506 to the interface in
the H41q/H51q system
Connection H 7505 --> H 7506
Standard lengths: 0.5 m, 2 m, 4 m
Figure 1: Wiring
Table 1: Pin assignment of the interface RS 485, 9-pole
Pin RS 485 Signal Meaning
1 - - not used
2 - RP 5 V, decoupled by diodes
3 A/A’ RxD/TxD-A Receive/Transmit Data A
4 - CNTR-A Control signal A
5 C/C’ DGND Data Ground
6 - VP 5 V, positive pole of power supply
7 - - not used
8 B/B’ RxD/TxD-B Receive/Transmit Data B
9 - CNTR-B Control signal B
1
MIN-D plug, 25 poles
-
H 7506
2
3
4
10
11
13
14
15
16
23
24
25
WH
BN
GN
YE
GY
PK
BU
RD
BK
VT
BNWH
1
13
14
25
MIN-D plug, 9 poles
-
RS 485
9
1
5
6
9
2
4
1
8
5
3
WH
BN
GN
YE
GY
PK
BU
RD
BK
VT
BNWH
LiYCY
16 x 0 14 mm
.
2
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