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ibaBM-DP
Manual
Issue 1.7
163
16
Notes on the different PROFIBUS masters
16.1 Beckhoff master
The Beckhoff master (e. g. EL6731 master terminal) does not cyclically request the sta-
tus of slaves.
This is why in this case no external (not activated on the device itself) Phantom slaves
(see chapter 10.4.1) can be detected in the diagnosis.
Measurement of the bus voltages (see chapter 10.4.3) is also not possible due to the
missing status telegrams.
16.2 Siemens IM308C Master
The master IM308C for Simatic S5 does not cyclically request the status of slaves.
This is why in this case no external (not activated on the device itself) Phantom slaves
(see chapter 10.4.1) can be detected in the diagnosis.
Measurement of the bus voltages (see chapter 10.4.3) is also not possible due to the
missing status telegrams.