User manual

Computer Gateway User Manual 4-21 5/96
4.3.6
4.3.6 DDT List Return
This message is returned by the CG if the host processor has requested the DDT list.
Eight-Character Tagname Form
Header information: Word 1—Transaction-Code = 48
Word 2—Number of Words = 2 plus 5 times the number of
Internal DDT tables in-CG
Word 5—CG Identifier = 3
Message format: Word 1—Return status (integer) 0=normal status
1=invalid type
Word 2—Number of Internal DDTs (integer)
Words 3..7—Internal DDT table name 1 (9 ASCII characters)
Words 8..12—Internal DDT table name 2 (9 ASCII characters)
Words nn..nn+4—Internal DDT table name N (9 ASCII
characters, nn=5N-2)
Use information: There can be a maximum of 40 Internal DDTs per-CG.
Sixteen-Character Tagname Form
Except for the Transaction Code (148), the sixteen-character tagname form for this message
is identical to the eight-character tagname form.