Mitsubishi Electric MELSEC iQ-R Series - Page 91

8 DEVICE ACCESS
8.2 Batch Read and Write
89
8
For 2C frame, the specification is not required. Functions and specification methods are equivalent to the subcommands for
MELSEC-Q/L series.
■Head device
Specify the head device of the consecutive devices. (Page 67 Devices)
The following devices cannot be specified.
• Long timer (contact: LTS, coil: LTC)
• Long retentive timer (contact: LSTS, coil: LSTC)
• Long index register (LZ)
Page 71 Considerations when accessing long timer, long retentive timer, or long counter
Page 71 Considerations when accessing long index register
■Number of device points
Specify the number of device points to be read within the following range in word units. (Page 72 Number of device
points)
Read 16-point bit device by specifying one point of "Number of device points".
Set the head device number for MELSEC-A series module with a multiple of 16.
For MELSEC iQ-R series
Access target Range
Word device Bit device Double word device
MELSEC iQ-R series module
MELSEC-Q/L series module
1 to 960 points 1 to 960 words
(1 to 15360 points)
1 to 960 words
(LCN: 1 to 480 points)
(LTN, LSTN: 1 to 240
points)
MELSEC-QnA series module
Module on other station via MELSEC-QnA series network module
1 to 480 points 1 to 480 words
(1 to 7680 points)

MELSEC-A series module 1 to 64 points 1 to 32 words
(1 to 512 points)

Type ASCII code Binary code
0
30H
0
30H
0
30H
2
32H
02 H 00 H