Prosoft-technology MVI46-DFCM Bedienungsanleitung Seite 87

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Seitenansicht 86
Reference MVI46-DFCM SLC Platform
DF1 Communication Module
ProSoft Technology, Inc. Page 87 of 103
October 20, 2008
Column Parameter Description Parameter
5 Swap Type Code Swap type code for command: 0=None, 1=Swap words,
2=Swap words & bytes and 3=swap bytes in each word.
6 Node Address Address of unit to reach on the data highway.
7 Function Code = 501 Logical Read Command
8 File Type SLC file type letter as used in file name string. Valid
values for the system are N, S, F, A, ….
P1
9 File Number SLC file number to be associated with the command. P2
10 Element Number The parameter defines the element in the file where
write operation will start.
P3
11 Not Used This field is not used by the command. Values entered
in this column will be ignored.
P4
This function reads one or more words of data from a PLC data table.
Function Code #502 - Protected Typed Logical Read (Three Address Fields)
Column Parameter Description Parameter
1 Enable/Type Word 0=Disabled and 1=Continuous.
2 Virtual Database Address This parameter defines the database address of the first
data point to be associated with the command.
3 Poll Interval Minimum number of seconds to wait before polling with
this command.
4 Count Number of data word values to be considered by the
function.
5 Swap Type Code Swap type code for command: 0=None, 1=Swap words,
2=Swap words & bytes and 3=swap bytes in each word.
6 Node Address Address of unit to reach on the data highway.
7 Function Code = 502 Logical Read Command
8 File Type SLC file type letter as used in file name string. Valid
values for the system are N, S, F, A, ….
P1
9 File Number SLC file number to be associated with the command. P2
10 Element Number The parameter defines the element in the file where
write operation will start.
P3
11 Sub-Element Number This parameter defines the sub-element to be used with
the command. Refer to the AB documentation for a list
of valid sub-element codes.
P4
This function reads one or more words of data from a PLC data table. This
function should work on the following devices: SLC 500, SLC 5/03 and SLC 5/04.
Function Code #509 - Protected Typed Logical Write (Two Address Fields)
Column Parameter Description Parameter
1 Enable/Type Word 0=Disabled, 1=Continuous and 2=Conditional.
2 Virtual Database Address This parameter defines the database address of the
first data point to be associated with the command.
3 Poll Interval Minimum time in tenths of a second to wait before
polling with this command.
4 Count Number of data word values to be considered by the
function.
5 Swap Type Code Swap type code for command: 0=None, 1=Swap
words, 2=Swap words & bytes and 3=swap bytes in
each word.
6 Node Address Address of unit to reach on the data highway.
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