SI-INTERBUS User Guide
61
Issue Number: 1
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10.2
Dual SI-Applications fitted
This scenario involves two SI-Applications or MCi2x0 modules (or one of each).
Consider a drive with the following configuration:
•
Slot 1 – MCi2x0
•
Slot 2 - SI-Interbus
•
Slot 3 - SI-Applications
If a parameter read request comes over Interbus to read Pr
71.08
, this will be redirected
to the module in the lowest slot number, i.e. the MCi2x0 in slot 1. The value in _Q08%
from slot 1 will be returned.
If a parameter read request comes over Interbus to read Pr
101.08
, this will be sent
straight to the MCi2x0 in slot 1. The value in _Q08% from slot 1 will be returned.
If a parameter read request comes over Interbus to read Pr
161.08
, this will be sent
straight to the SI-Applications in slot 3. The value in _Q08% from slot 3 will be returned.
If a parameter read request comes over Interbus to read Pr
131.08
, this will be sent
straight to slot 2. As there is no appropriate module fitted in slot 2 (i.e. SI-Applications or
MCi2x0), an error message will be returned, indicating that the parameter does not
exist.
When two SI-Applications or MCi2x0 modules (or one of each) is fitted, it is advisable to
use the direct slot access parameters to ensure the correct, and intended, module is
accessed.
NOTE
NOTE