
B-63983EN/02 4.LADDER LANGUAGE
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Parameter
(a) Control data address
The PMC byte address is used to specify the area where control
data is stored.
Control data
CTL+0
Function code
Completion code
Data length
Data number
Data attribute
Read data
* Only the size of the read data is
necessary for the data area below to
"CTL+10" usually.
* Set the control data area by sequence
program before executing the
"WINDR" or "WINDW".
+2
+4
+6
+8
+10
+n
∼
∼
See Chapter 5.
Reading completion (W1)
W1=0: "W1" is usually reset. The "W1=0" indicates that the
"WINDR" is not executed or the "WINDR" being executed
now.
W1=1: "W1" is set when the reading a data is completed by the
reading command (ACT=1). If the function of a low-speed
response is used, as soon as reading a data is completed
(W1=1), reset "ACT" (ACT=0).
Operation output register
If an error occurs during execution of the "WINDR" or "WINDW", the
bit in the operation output register is set. At the same time, the reading
completion is set (W1=1). Details of the error are output to the
completion code (CTL+2) in the control data area. See Chapter 5.
R9000
76543210
WINDR error