User manual

Computer Gateway User Manual 4-43 5/96
4.5.3
4.5.3 Store Internal DDT in CG Request
This message from the host processor sends a copy of a Internal DDT for the CG to use in
Data Table-driven Get Data requests.
Header information: Word 1—Transaction Code = 10
Word 2—Number of Words = 5 plus size of data table
Word 5—CG Identifier = 3
Message format: Words 1..5—table identifier (9 ASCII characters)
Word 6—start of data table, see paragraph 4.5.2 for format
Use information: CG-resident Internal DDTs cannot be used by Store Data or Get
History.
4.5.4 Delete Internal DDT Table from CG Request
This message from the host processor requests that a previously installed Internal DDT
table be deleted from the CG.
Header information: Word 1—Transaction Code = 11
Word 2—Number of Words = 5
Word 5—CG Identifier = 3
Message format: Words 1..5—table identifier (9 ASCII characters)
4.5.5 Internal DDT Store/Delete Return
This message from the CG is in response to either a Internal DDT Store or a Internal DDT
Delete request.
Header information: Word 1—Transaction Code = 12
Word 2—Number of Words = 1
Word 5—CG Identifier = 3
Message format: Word 1—return status (integer)
0=successful completion
1=nonexistent table
2=table space not available
4=table name used
5=memory not available
8=table in use
33=DDT—bad data type
34=DDT—bad number of words
35=DDT—bad table purpose
36=DDT—bad table size
37=DDT—duplicate data type
38=DDT—data type mismatch
39=DDT—too many entries
40=header—bad number of words