Direct 1-Byte Read From File Register (Zrrdb(P)) - Mitsubishi MELSEC Q Series Programming Manual

ZRRDB(P)
7.18.4

Direct 1-byte read from file register (ZRRDB(P))

ZRRDB(P)
ZRRDB
ZRRDBP
Setting
Data
n
D
Function
(1) Reads the serial byte number designated by n that does not signify a block number, and
stores at the lower 8 bits of the device designated by
The upper 8 bits designated by
n Serial byte number
(2) The correspondence between file register numbers and serial byte numbers is as indicated
below:
7-390
Command
Command
n : Serial byte number for the file register to be read (BIN 32 bits)
: Number of the device where the read data will be stored (BIN 16 bits)
D
Internal Devices
R, ZR
Bit Word
will become 00
D
File register
ZR0
Area for
block No. 0
ZR32767
ZR32768
Area for
block No. 1
ZR65535
ZR65536 Area for
block No. 2
b15 b8b7
Serial byte No. 1 Serial byte No. 0
ZR0
Serial byte No. 3 Serial byte No. 2
ZR1
Serial byte No. 5 Serial byte No. 4
ZR2
Serial byte No. 5001 Serial byte No. 5000
ZR2500
Serial byte No. 5003 Serial byte No. 5002
ZR2501
Serial byte No. 5005 Serial byte No. 5004
ZR2502
Serial byte No. 5007 Serial byte No. 5006
ZR2503
High
Basic
performance
ZRRDB
ZRRDBP
J \
U \G
Bit Word
.
D
.
H
b0
Data when an even
number is designated
Data when an odd
number is designated
Process
Redundant Universal LCPU
n
D
n
D
Constants
Zn Other
K, H
––
–– ––
b15 b8 B7 B0
D
00
H
Read-out contents