11 - 275 11 - 275
MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
• Specify the extension file registers to be monitored using integer arrays for the
number of points to be monitored in <storage area for data to be written>.
(0)
(1)
(2)
Block number
Device number
%
When specifying the nth device point
((n - 1) 2)
%
((n - 1) 2 + 1)
%
×
Specify the device number of the extension file registers (R).
The maximum value that can be specified for the device
number is the value set in the parameters of the PLC CPU.
For example, when the number of points to be monitored is 2 points:
(0)
%
(2)
%
(3)
%
(1)
%
Block number
Device number
Block number
Device number
The specification for
the first point is
((1 - 1)
×
2 + 1)
%
((1 - 1)
×
2)
%
The specification for
the second point is
((2 - 1)
×
2)
%
((2 - 1)
×
2 + 1)
%
Block number
Specify the block number of the extension file registers.
• If 0 is specified for the block number, monitor registration
is performed for the file registers of the PLC CPU.
(The same processing as monitor registration of R using
the processing code for monitor registration of device
memory will be performed.)
• If a number greater than 0 is specified for the block number,
monitor registration is performed for the extension file registers.
• The maximum value that can be specified for the block
number varies depending on the PLC CPU's memory.
×
