User manual

Computer Gateway User Manual 4-104 5/96
4.9
4.9 TEXT MESSAGE TRANSFERS
4.9.1 Get Message Request
This message is used by the host processor to request the fetching of a message placed in
an ACIDP by a CL/MC sequence program in a Multifunction Controller or by a CL/PM
sequence program in a Process Manager Module.
Eight-Character Tagname Form
Header information: Word 1—Transaction Code = 13
Word 2—Number of Words = 4
Word 5—CG Identifier = 3
Message format: Words 1..4—ACIDP name (8 ASCII characters)
Sixteen-Character Tagname Form
Header information: Word 1—Transaction Code = 113
Word 2—Number of Words = 13
Word 5—CG Identifier = 3
Message format: Words 1..8—ACIDP name (16 ASCII characters)
Words 9..13—reserved for future use (fill with integer zeros)
4.9.2 Get Message Return
This message is used by the CG to respond to a request for fetching of a message placed in
an ACIDP by a CL/MC or CL/PM sequence program.
Header information: Word 1—Transaction Code = 14
Word 2—Number of Words = 2 plus size of the message
Word 5—CG Identifier = 3
Message format: Word 1—return status (integer)
0=normal return
1=message too large
2=no message sent
4=normal return, second message queued
5=block record out of bounds
6=valid ACIDP not found
15=incorrect EXECSTAT
Word 2—message size in characters (integer)
Word 3—start message (ASCII characters)
Use information: Maximum message size is 120 characters.