
5. FUNCTIONAL INSTRUCTIONS
B–61863E/15
PMC SEQUENCE PROGRAM
300
CTL+0
Function code
Completion code
Data length
Data number
Data attribute
Read data
+2
+4
+6
+8
+10
+n
* Set the control data area by sequence
program before executing the “WINDR”
or “WINDW”.
* Only the size of the read data is
necessary for the data area below to to
“CTL+10” usually.
See Appendixies NO TAG to F WINDOW FUNCTION
DESCRIPTION.
CAUTION
1 In the functional instructions “WINDR” and “WINDW”, the
control data area may be temporarily rewritten. Therefore,
set the control data area by sequence program before the
“WINDR” or “WINDW” is executed even when you specify
the none volatile memory area like “D” address for the
control data area. Because, when the power supply is
turned off during the control data is rewritten, this rewritten
data may be memorized in a none volatile memory.
Therefore, note that the “WINDR” or “WINDW” might be
executed with the wrong control data when the power
supply is turned on next if the control data area is not set by
sequence program.
2 Set the control data in the same program level as the
“WINDR” or “WINDW” is executed. If you set the control data
in the different program level, note that the “WINDR” or
“WINDW” might not be executed correctly, because the
control data is rewritten during the execution of “WINDR” or
“WINDW”.
3 In the diagnosis screen, it might be seen that the value of
control data is changing. This is not abnormal. Because the
display processing and the execution processing of a
sequence program are asynchronously executed.
Therefore, the value when the control data is rewritten
(above–mentioned) is occasionally displayed. Even in this
case, the “WINDR” or “WINDW” is executed correctly.
5.46.5
Control Data