Mitsubishi Electric MELSEC iQ-R Series - Page 998

996
7 APPLICATION INSTRUCTIONS
7.23 File Register Read/Write Instructions
Processing details
• Without recognizing block numbers, these instructions read the data from the file register with the serial byte number
specified by (s), and store the data in the lower 8 bits of the device specified by (d). 00H is stored in the upper 8 bits of the
device specified by (d).
• The following figure shows the file register numbers corresponding to serial byte numbers.
Ex.
When 23560 is specified in (s), the data in the lower 8 bits of ZR11780 is read.
Ex.
When 43257 is specified in (s), the data in the upper 8 bits of ZR21628 is read.
Operation error
(1) Data areas when an odd number is specified
(2) Data areas when an even number is specified
(1) Specifying the read-target area
(1) Specifying the read-target area
Error code
(SD0)
Description
2820H The specified device number (serial byte number) is out of range.
 
(d)
b15 b8 b7 b0
00H
(s)
ZR0
ZR32767
ZR32768
ZR65535
ZR65536
Data read from the file register
Serial byte number
Specifying the
read-target area
Reading data from
the file register
File register
Areas for the block
No.0
Areas for the block
No.1
Areas for the block
No.2
b15 b8 b7 b0
ZR0
ZR2500
ZR2502
ZR2501
ZR2503
ZR1
ZR2

No.0No.1
No.2No.3
No.4No.5
No.5000No.5001
No.5002No.5003
No.5004No.5005
No.5006No.5007
(2)
(1)
(d)
b15 b8 b7 b0b15 b8 b7 b0
ZR11780
43H
21H 00H 21H
(s) 23560
(1)
(d)
b15 b8 b7 b0b15 b8 b7 b0
ZR21628
93H
42H 00H 93H
(s) 43257
(1)