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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
• The following information is read to <storage area for data read>.
(1) Number of link/network modules mounted.
(2) System code
1
2
:
:
MELSECNET/10
MELSECNET (II), MELSECNET/B
(3) Network number
0
Other than 0
:
:
MELSECNET (II), MELSECNET/B
Network number set
(4) Link/network station number
0 to 64
: Station number of the corresponding data link/network module
(5) Group number
0
Other than 0
:
:
No group setting. MELSECNET (II), MELSECNET/B
Group number set
Information for items (2) to (5) is read for the number of link/network modules
mounted.
• Even if the capacity of <storage area for data read> is smaller than the number of
data, this code ends normally without generating an error.
Define arrays larger than the necessary amount of data.
Program Example
(1) Program example for a format 1 control table
100 DIM TBL%(10),A%(20)
:
' Defines arrays
110 TBL%(0)=255
:
' Specifies the station number to
communicate with to the local station
120 TBL%(1)=21
:
' Specifies to read network information
130 PCRD TBL%( ),A%( )
:
' Executes the read operation
140 END
(2) Program example for a format 2 control table
100 DIM TBL%(10),A%(20)
:
'Defines arrays
110 TBL%(0)=256
:
'Specifies a format 2 control table
120 TBL%(1)=1
:
'Specifies network number 1
130 TBL%(2)=1
:
'Specifies station number 1
140 TBL%(4)=21
:
'Specifies to read network information
150 PCRD TBL%( ),A%( )
:
'Executes the read operation
160 END
