PROFIBUS-DPV0 functions
93
11/04 MN01219002Z-EN
The inputs 0 to 3 of the DMI can be assigned as required with
24 V signals. Input 4 and 5 are intended for connection of
the auxiliary switch, in order to recognise the switching state
of the circuit-breaker.
With parameterized motor-starter functions, defined inputs
of the DMI are used for local control of the motor
(
a
section “Motor start.”, Page 44). In this case, the data
“Input 1“ and if required “Input 3“ (with parameterised
reversing starters) do not contain the physical signal status
of the respective DMI input, but rather the logical control of
the motor:
Bit 3
Input 4
Bit 4
Input 5
Bit 5 to Bit 7
Not used
Input 1:
“0” corresponds to motor “OFF”,
“1” corresponds to motor “ON“ or anticlockwise,
Input 3:
“1” corresponds to motor clockwise.
Data position
Designation
h
When accessing the phase currents
I
1
to
I
3
and
I
max
,
please note the Motorola coding format (Octet N: High-
Byte, Octet N+1: Low-Byte) used in PROFIBUS-DP for data
in WORD format. 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.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
