PROFIBUS-DPV1 functions
145
11/04 MN01219002Z-EN
Circuit-breaker/DMI command object
This object serves for accepting commands which are
directed to the circuit-breaker or to the DMI.
This object is a write only object. It can be accessed by
class 1 and/or a class 2 DPV1 master.
Intended usage
Use this object in order to transfer the commands with
regard to
• Tripping of the circuit-breaker,
• Switching state of the circuit-breaker,
• Motor control via the DMI,
• Group acknowledgement of alarms,
• Acknowledging a startup
to the circuit-breaker or the DMI.
h
When accessing the “Serial_number” data content,
please note the Motorola coding format (Octet N: High-
Byte, Octet N+1: Low-Byte) used in PROFIBUS-DP. If the
data processing format in your DP master system deviates
from this standard, and the DP access commands do not
automatically include a conversion, it will be necessary to
implement and perform the conversion in your application
program. Please refer to the documentation of your DP
master system.
h
For certain commands the preconditions in
a
table 32
are necessary.
Caution!
Writing to this object has the effect of immediately
selecting execution of this command. Please proceed
carefully with the selection of the command and when
calling the Write service for this object.
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