Toshiba S20LP - Manual (Page 43)

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6 F 3 B 0 3 5 6
6. Expanded data transfer instruction
6.1 Instruction Specification
This section presents an overview of the XFER instructions, which is the instruction that is used
to control the S20LP-station from T2N/T3H user programs. S20LP-station transmission control
is performed solely using the XFER instructions.
(1) Instruction format
The format of XFER instruction.
(2) Function
When the input is ON, data block transfer is performed between the source which is
indirectly designated by A and A+1 and the destination which is indirectly designated by C
and C+1. The transfer size (number of words) is designated by B. The transfer size is 1 to
256 words.
Input Operation Output ERF
OFF No execution OFF −
ON Normal execution OFF −
When error is occurred ON SET
(3) Operand
Operand
Name Device Register INDEX Index
X Y S L R Z X
W
Y
W
S
W
L
W
R
W
W T C D F I
W
O
W
I J K
A Source parameter ь ь ь ь ь ь ь ь ь ь ь
B Transfer size ь ь ь ь ь ь ь ь ь ь ь
C Destination
parameter
ь ь ь ь ь ь ь ь ь ь
Con-
stant
[ A X F E R B
→
C ]
Input Output