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6F3B0250
Basic Hardware and Function
263
7. Instructions
FUN 237 READ Special module data read
Expression
Input
-
[
A
READ
B
®
C
]
-
Output
Function
When the input is ON, this instruction reads data from the buffer memory of the special module that is
designated by operand
A
, and stores them in registers starting with operand
C
.
The transfer source address (buffer memory address) is designated by operand
B
.
The transfer size (number of words) is designated by operand
B+1
.
This instruction is only effective for the T2 I/O modules connected to the T1-40 or T1-40S.
Execution condition
Input Operation Output ERF
OFF No execution OFF
-
ON Normal execution ON
-
When error is occurred (see Note) ON Set
Operand
Name Device Re
g
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A
Special module
ÖÖ
H0004 -
H0007
B
Transfer
parameter
ÖÖÖÖÖÖÖ
C
Destination
ÖÖÖÖÖÖ
Example
When R010 is ON, the buffer memory data of the size indicated by RW51, starting with the
address indicated by RW50 of the special module allocated to XW06, are read and stored in
D0100 and after.
XW06 special module T1/T1S
RW50 H8000
Buffer memory RW51 16
H8000 1234 READ D0100 1234
H800F 5678 16 words D0115 5678
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