8 APPLICATION INSTRUCTION
8.23 Indirect Address Read Instruction
685
8
Processing details
• These instructions store the indirect address of the device specified by (s) to the device specified by (d). The addresses
stored in the device specified by (d)+0 and (d)+1 are used by the program to execute the indirect address of the device.
• The nibble of a bit device, and the bit of a word device cannot be specified in (s).
Precautions
• In the indirect specification, the device address used in sequence program is specified with a word device of 2 words (2-
word devices). Use the indirect specification as an index when index register is insufficient.
• In the indirect specification, the device which specify the address of the specified device is specified by "@+(word device
number)". For example, when "@D100" is specified, and the content of D101 and D100 becomes the device address.
Operation error
There is no operation error.
(1) Stores the address of W100 to D100
and D101.
(2) Specifies the content of D100 and
D101 (address of W100).
(3) Writes "1234" to W100.
D0
D1
D101
D100
W100
1234
ADRSET W100
D100
(1)
(3)
(2)
MOV
K1234 @D100
Device area
Address of
W100
MOV K50 Z0
DMOV K10000 D150
DMOV D100Z0 D110
ADRSET D100 D0
DMOV K50 W0
DMOV K10000 D150
D+ D0 W0 D10
MOV @D10 D110
Specification of D(100+50) = D150
[When the index register is used]
Specification of the address of D150
[When the indirect specification is used]
Stores the address
of D100 to D0.
(Address of D100) + 50
= (Address of D150)
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
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Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
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