User manual

Computer Gateway User Manual 4-47 5/96
4.6.3
Internal Entity ID Words 1..4—value (internal format)
Word 5—value status (integer)
External Entity ID Words 1..8—name (up to 16 ASCII char.)
Word 9—LCN id (2 characters; blank=local)
Word 10—value status (integer)
LCN Internal Time Words 1..2—seconds since 1 January 1979
(32-bit integer)
Word 3—tenths of ms in current second
(integer)
Word 4—value status (integer)
ASCII String Words 1..20—value (ASCII characters)
(40 characters) Word 21—value status (integer)
Use information: The number of point/parameters is limited to a total of 300 or less.
See heading 4.1.5.
For value status definitions, see “Data Access Status Codes” in
the Messages Directory.
Sixteen-Character Tagname Form
Header information: Word 1—Transaction Code = 107
Word 2—Number of Words = 14 plus size of data
Word 5—CG Identifier = 2
Message format: Words 1..8—ACIDP name or blank (16 ASCII characters)
Words 9..13—reserved for future use (fill with integer zeros)
Word 14—return status (integer)
0=normal
1=nonexistent table
4=EXECSTAT incorrect
5=complete with errors
10=get-store table empty
16=ACIDP name invalid
28=invalid data access priority
33=invalid data type specified in Internal
DDT
35=Internal DDT purpose not same as
request
36=Internal DDT header number of words
disagrees with table content
37=data type repeated in Internal DDT
38=Internal DDT contains both enumeration
and ordinal data
39=Internal DDT contains over 300 points
40=number of words specified in message
header disagrees with message content
Word 6—start of values for point/parameters (in same order as
contained in the Internal DDT)