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α
2 Simple Application Controllers
The Command String 7
7 - 25
b ) Write a value of 4369 to Count Value of the Up/Down FB Word parameter CWNo.3 as
shown below. Refer to section 6.1 for more details concerning VLS settings for dedi-
cated protocol bit/word settings.
The received message shows that VLS has completed the change in count value for the
UP/DOWN function block and a value of 4369 (decimal) has been achieved.
Computer
α
2 Controller
S
T
X
Command
Format No.
Station No.
Complete
flag
A
C
K
No. comm
bytes
02H
Device No.
(HB)
No. of
devices
Device
code
Device No.
(LB)
Sum check
(HB)
E
T
X
Sum check
(LB)
Device
status
09H 41H 00H 01H 01H 69H 03H 00H 11H 03H D1H 00H
S
T
X
Format No.
Station No.
No. comm
bytes
02H 03H 40H 00H
S
T
X
Format No.
Station No.
No. comm
bytes
02H 03H 40H 00H21H 06H
Device
status
11H