Connecting; Connecting Analog Outputs - Siemens 2AO U HF Manual

Connecting

5.1

Connecting analog outputs

Introduction
This chapter describes the factors to consider when connecting the analog outputs.
Cables for analog signals
You should use shielded and twisted-pair cables for the analog signals. This reduces the
effect of interference. You should ground the shield of the analog cables at both ends. If
there are differences in potential between the cable ends, an equipotential bonding current
that may interfere with the analog signals will flow across the shield. In this case, you should
only ground the shield at one end of the cable.
Analog output modules
In the case of the analog output modules there is generally galvanic isolation
● Between logic and backplane bus.
● Between the load voltage and M
2AO U HF analog electronic module (6ES7135-4LB02-0AB0)
Manual, 04/2007, A5E01076940-01
ANA.
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