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2 CompoWay/F Communications Procedures
2 - 12
E5

C-T Digital Temperature Controllers Programmable Type Communications Manual (H186)
This service writes in order the contents of specified addresses to a variable area.
• Service Request PDU
• Service Response PDU
(1) Variable Type and Write Start Address
For details on variable types and write start addresses, refer to Section 3 Communications Data for
CompoWay/F .
(2) Bit Position
Bit access is not supported. Fixed to “00.”
(3) Number of Write Data Items (Variable Type + Write A Bit Po Write Data
Counted As 1 Item)
Note: The following table gives the maximum number of write data items when double-word data and word data
are used together.
1101 Area type error The variable type is wrong.
110B
Response too long The number of elements exceeds
the maximum.
1100 Parameter error Bit position is not "00."
2203 Operation error Non-volatile memory error
2-3-4 Composite Write to Variable Area
Write data length Number of write data items
Double word (variable types C1, C3, C4, C5, C9, or DA) 12 max.
Word (variable types 81, 83, 84, 85, 89, or 9A) 17 max.
Composite Write Composite Write
Double word
(variable types C1,
C3, C4, C5, C9, or
DA)
Word
(variable types 81,
83, 84, 85, 89, or 9A)
Double word
(variable types C1,
C3, C4, C5, C9, or
DA)
Word
(variable types 81,
83, 84, 85, 89, or 9A)
12 0 5 10
12 1 4 11
11 2 3 12
10 3 3 13
9 4 2 14
9 5 1 15
Response code Error name Cause
2 2
MRC SRC
0 1 1 3 0 0
2 2 4
0 0
2 2 4
V aria b le
type
W rite
address
V aria b le
type
W rite data
W rite data
W rite
address
Bit
position
Bit
position
Nu m b er of elements
×
8 or 4
Nu m b er of elements
×
8 or 4
MRC SRC
0 1 1 3
2 2 4
Response
code