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5.2
Wiring unused channels on analog input modules
Rules
Pay attention to the following instructions when wiring unused channels:
● "Disable" unused input channels when setting parameters.
● A disabled channel always returns the value 7FFF
● The cycle time of the module reduces by 80 ms (e.g. 84 ms) per disabled channel.
● To adhere to the permissible potential differences, you must wire jumpers on the terminal
2AI RTD ST
2/4AI RTD 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.
2/4AI RTD ST analog electronic module (6ES7134-4JB51-0AB0)
Manual, 07/2008, A5E01076865-02
module for the unused channels.
Analog input module
5.2 Wiring unused channels on analog input modules
.
H
TM connection terminal
Channel 0
1
2
3
4
Channel 0
Channel 2
1
2
3
4
Connecting
Channel 1
5
6
7
8
Channel 1
Channel 3
5
6
7
8
29
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