2 PROFINET IO in SIPROTEC
2.3 Data-Type Definitions for IO Data Exchange
23SIPROTEC 4, Communication Module PROFINET IO, Communication Profile
C53000-L1840-C360-1, Edition 08.2012
2.3.3 Data Type Double-Point Indication (DP, Input)/Double Command (DC, Output)
Number of byte values: 1/4 (2 bits)
Range of values:
0 = "not applicable"/
disturbed state for DP and
idle state for DC bit 1 = 0 and bit 0 = 0
1 = OFF bit 1 = 0 and bit 0 = 1
2 = ON bit 1 = 1 and bit 0 = 0
3 = disturbed state for DP,
not allowed for DC bit 1 = 1 and bit 0 = 1
Figure 2-7 Data Type: Double-Point Indication/Double Command
NOTE
Depending on the data type selected in DIGSI, the values 0 and 3 for double-point indications have the
following meaning:
− Type DP: 0 = "not applicable", 3 = disturbed state "00" or disturbed state "11"
− Type DP_I: 0 = "not applicable" or disturbed state "00", 3 = disturbed state "11"
"not applicable": the indication is not routed (not connected to a binary input)
2
0
2
7
to 2
4
2
3
2
2
2
1
...
Bit 0 Bit 0Bit 1Bit 1
DP/DC 1
4 double-point indications/double commands max. per byte
DP/DC 2
...
...
NOTE
The data type double command requires the associated command feedback to be parameterized as double-
point indication.
A double command with a single-point indication as feedback or without feedback acquisition is controlled in
the same way as a single command via PROFINET IO. This means that the processing of a double command
via PROFINET IO depends on the type of the associated feedback.
com_profinet-io_profile_us.book Page 23 Friday, August 17, 2012 1:40 PM
To Next Page
Loading...
Need help?
General
