Siemens SIMATIC 6ES7134-4FB01-0AB0 - Wiring Unused Channels; Shield Connection

Connecting
5.2 Wiring unused channels of the analog input modules
2AI U ST analog electronic module (6ES7134-4FB01-0AB0)
22 Manual, 04/2007, A5E01076000-01
5.2 Wiring unused channels of the analog input modules
Rules
Pay attention to the following instructions when wiring unused channels:
● "Deactivate" unused input channels when assigning parameters.
● A deactivated channel always returns the value 7FFF
H
.
● The module cycle time is halved with the 2 AI U ST module.
● To adhere to the permissible potential differences (U
CM
), you must wire jumpers on the
terminal module for the unused channels.
TM connecting terminal
Channel 0 Channel 1
Analog input module
1 2 3 4 5 6 7 8
2 AI U ST
5.3 Using the shield connection
Rules
To prevent interference we recommend the following for analog electronic modules:
● Use shielded wires to the sensors and actuators.
● Lay out the wire shields on the shield connection.
● Connect the shield connection to the ground bus with low impedance.