Chapter 6 Applied Instructions
6-531
API Instruction code
Operand
Function
2301 MREAD P
C, S, S
1
, S
2
, S
3
, D
Reading the data from the memory
card into the PLC
Device
X Y M S T C HC D L SM SR E PR K 16# “$” DF
Pulse instruction 16-bit instruction (13 steps) 32-bit instruction
AH500 AH500 -
Symbol:
C
：
Control parameter Word
S
：
File name Word
S
1
：
Data address in the file Double word
S
2
：
Reserved Word
S
3
：
Data length Double word
D
：
Data destination Word
Explanation:
1. The description of the operands:
C: The control parameter
File format
0
Binary value
The default value is 0.
The file name extension is .dmd.
The unit of the value is the word.
1
The values are separated by a comma.
The unit of the value is the word.
The file name extension is .cvs.
The ASCII codes are adopted.
The value which is stored is a hexadecimal value.
2
The values are separated by a comma.
The unit of the value is the double word.
The file name extension is .cvs.
The ASCII codes are adopted.
The value which is stored is a hexadecimal value.
The values are separated by a tab.
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