Connection Versions; Measurements During System Downtime - Profibus PB-Q ONE User Manual

Connection to the PROFIBUS system

3.2 Connection versions

3.2.1 Measurements during system downtime

If D-Sub connectors with an additional service jack are present on all bus devices, then the
ONE
PB-Q is simply connected there as shown in the image. If a D-Sub connector without a service jack is
installed, then the D-Sub adapter cable can be inserted below. Note that cascading more than two D-Sub
connectors should be avoided at all cost.
For M12 connection technology, the M12 adapter cable (optional) is looped into the bus.
For all connection versions requiring adapter installation, the bus must be opened. This causes
short-term disruptions in communication, which is why a system shutdown is required.
ONE
PB-Q - User Manual
Figure 3: Measuring points during system downtime
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