Mitsubishi QD51 Programming Manual page 345

11 INSTRUCTIONS AND FUNCTIONS
Processing Code 2
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Reading device memory registered to be monitored by the PCWT instruction
Control table format definition
Element position
Format 1 Format 2
%(0) • • • • • • •
%(0)
%(1)
%(2)
%(3)
%(1) %(4)
• It is possible to read data of device memory that was used for monitor
registration by the PCWT instruction with this code.
• An error occurs if device memory is read without performing monitor registration.
• Specify the following data for <control table>.
Format 1 control table
%(0) • • • • • •
%(1) • • • • • •
Format 2 control table
%(0) • • • • • •
%(1) • • • • • •
%(2) • • • • • •
%(3) • • • • • •
%(4) • • • • • •
• The following processing is performed if file registers (R) are specified as the
device to be read:
(1) If the block number of the file registers has never been changed in the PLC
CPU, the data in the file registers of block No. 0 is read.
Item
Station number
Control table
Network number
Station number
Detailed error code
Processing code
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.
Processing code
• Specify 2.
Format 2 control table
• Specify 256.
Specify the network number of the network to be accessed.
See Section 4.2.2 for the allowable specification range.
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.
Detailed error codes are stored here.
See Appendix 4.4.2 for the details of the error codes.
Processing code
• Specify 2.
MELSEC-Q
Description
Specify a control table of format 2.
Specify the network number.
Specify the network number.
Specify the station number of the PLC.
Detailed error codes are stored here.
Specify the processing code.
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