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ALLEN BRADLEY PLC
ANALOG OUTPUT SUBSCRIBER (FC 187)
WBPEEUI240759A0
A - 11
Specifications Explanation
S1
Specification S1 is the block address of the next analog out-
put subscriber block.
S2
Specification S2 is the group identifier which must be unique
for each output group defined. Up to four analog output sub-
scribers can be grouped together. All subscribers in a group
must have the same unique group identifier.
NOTES:
1.
All function codes in a group must use the same input type.
2.
All function codes in a group must use the same storage type
(i.e., file type).
S3
Specification S3 is the subgroup number and its number of
elements. Each analog output subscriber can handle up to
eight outputs for a maximum of 32 outputs per group. The
number of elements can range from one to eight. Performance
is enhanced by grouping as many points together as possible.
Valid entries for specification S3 are defined in Table
.
S4 through S11
Specifications S4 through S11 are the block addresses of out-
puts one through eight.
S12
Specification S12 is the output type.
0 = analog real
1 = analog real with quality
2 = analog integer
3 = analog integer with quality
If the PLC supports two byte signed integers (2 or 3), the EDI
module (i.e., MFP module) can send negative two-byte signed
integer values.
S13
Specification S13 defines the Allen Bradley file type and file
number in a format of xyyy.
Table A-11. Analog Output Group
6XEJURXS
1XPEHU[
1XPEHURI
(OHPHQWV\
6[\
0
1 - 8
1 - 8
1
1 - 8
11 - 18
2
1 - 8
21 - 28
3
1 - 8
31 - 38