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Bosch Rexroth AG
Interfaces
7.2.5
Digital 24 V Input (Changeover Input)
digital 24 V input
Connection
X31
X32
X33
Fig.7-18:
Assignment of the three G4 display interfaces
Via the G4 display interfaces image data as well as the keyboard and mouse
signals are transmitted from VDP displays to the control cabinet PC (IPC).
NOTICE
The cables must not be plugged together for extension purposes, as this dam‐
ages the VDPs.
The following cable length must not be exceeded:
Cable between control cabinet PC (IPC) and Y-repeater
Cable between Y-repeater and VDP
Total length between control cabinet PC (IPC) and VDP
Fig.7-19:
Permitted cable lengths of G4 display interfaces
All three values must be observed!
X21 –
The selection, which of the VDP displays connected to the Y-Repeater is acti‐
vated, occurs via a digital 24 V input. As the image signals are transmitted to
both VDP displays, data can only be entered with the active VDP.
Fig.7-20:
Assignment of the digital 24 V input
Pin
1
2
3
Fig.7-21:
Pin assignment X21
Input bit X21
0 (or open)
1
Fig.7-22:
Selection of the active VDP
Connection method
Reverse voltage protection
DOK-SUPPL*-VDP16/40/60-PR03-EN-P
Rexroth IndraControl VDP 16.1/40.1/60.1 Operator Display
Function
G4 display interface to control cabinet PC (IPC)
G4 display interface to VDP 1
G4 display interface to VDP 2
Material damage due to cable extension!
Labeling
+
-
n.c.
Active VDP
VDP 1
VDP 2
2-wire connection
Yes
< 15 meters
< 25 meters
< 30 meters
Function
Signal input
Signal ground
not assigned
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