
B-63983EN/02 4.LADDER LANGUAGE
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4.5.3 MOVD (Transfer of 4 Bytes: SUB 47)
The MOVD instruction transfers 4-byte data from a specified source
address to a specified destination address.
Format
Fig. 4.5.3 shows the ladder format and Table 4.5.3 shows the
mnemonic format.
MOVD
SUB 47
¡¡¡¡
¡¡¡¡
ACT
Transfer source address
Transfer destination address
Fig. 4.5.3 Format of MOVD instruction
Table 4.5.3 Mnemonic of MOVD instruction
Mnemonic format Memory status of control
condition
Step
number
Instruction
Address
No.
Bit No. Remarks ST3 ST2 ST1 ST0
1RD ¡¡¡¡ .¡ ACT ACT
2 SUB 47 MOVD instruction
3(PRM) ¡¡¡¡ Transfer source address
4(PRM) ¡¡¡¡ Transfer destination address
Control condition
(a) Input signal
ACT = 0: No data is transferred.
ACT = 1: Four-byte data is transferred.
Parameters
(a) Transfer source address
Specify the source address for the transfer.
(b) Transfer destination address
Specify the destination address for the transfer.
NOTE
Take care not to specify overlapped areas for
source and destination. If the source and
destination areas are overlapped with each other,
the result is not guaranteed.