Mitsubishi QD51 Programming Manual page 405

11 INSTRUCTIONS AND FUNCTIONS
Processing Code 516
Element position
Only
Format 1
applicable
to %(0)
QD51
(-R24)
%(1)
%(2)
%(3)
%(4)
Repeat for %(5)
the number
%(6)
of points to
%(7)
be read.
%(8)
%(9)
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Random read of device memory of the Q/QnA series PLC CPU
Control table format definition
Format 2 Format 3
%(0) %(0)
%(1) %(1)
%(2) %(2)
%(3) %(3)
%(4)
%(4) %(5)
%(5) %(6)
%(6) %(7)
%(7) %(8)
%(8) %(9)
%(9) %(10)
%(10) %(11)
%(11) %(12)
%(12) %(13)
• It is possible to read individual devices in the device memory of the Q/QnA series
PLC CPU using this code.
• Specify the following data for <control table>.
Item
Station number
Control table
Network number
Station number
Detailed error code
Requested CPU
Processing code
Lower Number of
word device
points
Higher Number of bit
device points
Number of double-
word device points
Fixed value
Device code
Device lower
number
higher
Processing unit
Fixed value
MELSEC-Q
Description
Specify the station number of the PLC.
Specify a control table of format 2.
Specify the network number.
Specify the station number of the PLC.
Detailed error codes are stored here.
Specify the requested CPU.
Specify the processing code.
Specify the number of word device
points.
Specify the number of bit device points.
Specify the number of double-word
device points.
Specify 0.
Specify the device code.
Specify the device number.
Specify the device processing unit.
Specify 0.
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