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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
Reading extension file register data by specifying sequential addresses (direct
reading)
Processing Code 7
Control table format definition
Element position
Item
Description
Only applicable to
AnA/AnU/AnUS
CPU
Format 1
Format 2
%(0)
• • • • • • •
Station number
Specify the station number of the PLC.
%(0)
Control table
Specify a control table of format 2.
%(1)
Network number
Specify the network number.
%(2)
Station number
Specify the station number of the PLC.
%(3)
Detailed error code
Detailed error codes are stored here.
%(1)
%(4)
Processing code
Specify the processing code.
%(2)
%(5)
%(3)
%(6)
Device number
Specify the device number of the
extension file registers expressed in
sequential addresses.
%(4)
%(7)
Number of points
Specify the number of points to be read.
• It is possible to read data from extension file registers by specifying their
sequential addresses, rather than dividing them by block numbers, using this
code.
• Specify the following data for <control table>.
Format 1 control table
%(0)
• • • • • •
Specify the station number of the PLC CPU from which
data is to be read.
See Section 4.2.2 for the allowable specification range.
%(1)
• • • • • •
Processing code
• Specify 7.
%(2)
• • • • • •
%(3)
• • • •
Specify the device number of the extension file registers
expressed in sequential addresses.
The allowable specification range is from 0 to (number of
usable blocks 8192) 1.
The starting device is calculated from the following formula:
(When specifying device number m (0 to 8191) at nth (1
or more) block from the beginning)
Starting device number = (n 1) 8192 + m
%(4)
• • • • • •
Specify the number of device points to be read, including
the device specified in %(2) and %(3).
The allowable specification range is from 1 to 64 points.
