Pin Assignment; X21, X22, X11: Digital 24 V Inputs And Outputs; General Information - Bosch REXROTH IndraControl VAM 42.1 Project Planning Manual

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Interfaces
7.4.2

Pin Assignment

7.5

X21, X22, X11: Digital 24 V Inputs and Outputs

7.5.1

General Information

Rexroth IndraControl VAM 12.1/42.1 Machine Control Panels
Fig.7-10: Pin assignment of the PROFIBUS DP interface
Connec‐ Pin RS485
tor reference
X71 1 -
2 -
3 B/B'
4 -
5 C/C'
6 -
7 -
8 A/A'
9 -
Fig.7-11: Pin assignment of the PROFIBUS DP interface
NOTICE
Ensure that potential equalizing currents do not flow over the shield conductor
of the interface line. Therefore, provide a proper potential equalization between
the devices to be connected already before the first commissioning.
The VAM 12.1/VAM 42.1 device provides 16 digital 24 V inputs and 8 digital
24 V outputs. The connectors of the inputs and outputs are located on the logic
circuit board. The states of the I/Os are indicated by the green LED.
The states of the inputs are transmitted to the master control via
PROFIBUS DP. The outputs are defined by the master control via
PROFIBUS DP.
The module configuration and the address assignment are descri‐
bed in chapter 8 "Maintenance and Commissioning" on page
71.
DOK-SUPPL*-VAM*XX.1***-PR02-EN-P
5
9
6
1
Signal Meaning
- -
- -
RxD/TxD-P Receiving/Transmitting data
CNTR_P Repeater control signal
DGND Data reference potential (M 5 V)
VP Supply voltage plus (P 5 V)
- -
RxD/TxD-N Receiving/Transmitting data N
DGND Data reference potential (M 5 V)
Malfunction of the PROFIBUS DP interface
due to insufficient potential equalization