Mitsubishi Electric MELSEC IQ-R series Reference Manual page 115

■Subcommand
Type
For MELSEC-Q/L series
For MELSEC iQ-R series
■Number of word device blocks, number of bit device blocks
Specify the number of device blocks to be read in hexadecimal. (Page 73 Number of blocks)
Specify the total number of each block within the following range.
Access target
MELSEC iQ-R series module (subcommand: 0000)
MELSEC-Q/L series module (subcommand: 0000)
MELSEC-QnA series module
MELSEC iQ-R series module (subcommand: 0002, 008)
MELSEC-Q/L series module (subcommand: 0080)
■Block of word device, block of bit device
Specify the device to be read by handling consecutive devices as one block.
Specify the block with the number of points equivalent to the specified "Number of word device blocks" and
"Number of bit device blocks", respectively. When '0' is specified, this specification is not required.
Specify the following items for every block.
Block (1 point)
Number of
Head device
device points
• Device: Specify the head device of the consecutive devices. (Page 67 Devices)
• Number of device points: Specify the number of device points to be read. (Page 72 Number of device points)
Specify the total number of device points for each block within the range of 1 to 960.
Word device is 1-word per one point, and bit device is 16-bit for one point.
Use a bit device block when the contact and coil for the following devices are specified.
• Timer
• Retentive timer
• Counter
The following devices cannot be specified.
• Long timer (contact: LTS, coil: LTC, current value: LTN)
• Long retentive timer (contact: LSTS, coil: LSTC, current value: LSTN)
• Long counter (contact: LCS, coil: LCC, current value: LCN)
• 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
ASCII code
0 0 0 0
30 30 30 30
H H H H
0 0 0 2
30 30 30 32
H H H H
Range
1Number of word device blocks + Number of bit device blocks 120 points
1Number of word device blocks + Number of bit device blocks60 points
Binary code
00 00
H H
02 00
H H
8 DEVICE ACCESS
8.4 Batch Read and Write Multiple Blocks
8
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