User manual

Computer Gateway User Manual 4-57 5/96
4.7.4
4.7.4 Get Single Point Return (External Identifier)
This message from the CG is the response to a Get Single Point request (external
identifier). The data returned includes both value and value status.
Eight-Character Tagname Form
Header information: Word 1—Transaction Code = 29
Word 2—Number of Words = 6 plus size of data record
Word 5—CG Identifier = 2
Message format: Words 1..4—ACIDP name or blank (8 ASCII characters)
Word 5—return status (integer)
0=normal
5=check value status
6=entity not found
7=data access failure
(complete error logged in SMCC
display)
11=data type mismatch
(data type corrected, no data returned)
15=incorrect execution state
16=ACIDP name invalid
20=ACP-ACIDP not connected
22=data type out of range
26=parameter not found
27=parameter index out of range
28=bad data access priority
29=bad data type
30=bad entity index
31=bad entity-parameter combination
32=bad parameter index
40=header bad number words
41=array size too large
(size of whole array and data returned)
42=Get LCN Time problems
44=duplicate entity name error
NOTE
Return Status codes 11 and 41 indicate warnings. Useful information has been returned.
Return Status Code 5 indicates that the value status contains a non-normal data access status
code.