High−level Instructions
3 − 402
Explanation of example
Ten words of data stored at address 0 to 9 in the shared memory of the intelligent unit of the slave station
specified by DT0 and DT1 are read and the read data stored in data registers DT10 to DT19 of the master
station “CPU” when R10 turns on.
No.5
01234
DT0=H105
DT1=H0
DT10
DT12
DT11
DT18
DT19
0
2
1
8
9
CPU
Intelligent unit
(shared memory)
Master station 1
Master 2
Master 1
CPU
Power
Power
Slave
Description
This reads n words of the data stored in the shared memory of the intelligent unit of the slave station on the
MEWNET−F (remote I/O system) specified by S1 and S1+1 from the address specified by S2, and stores it in
the area of the master station CPU specified by D.
Specifying the various items
Control data (S1)
Specify the master station number, slave station number, and slot number (and the bank number, if there is a
bank), and specify the memory of the intelligent unit (for detailed information, refer to the following page).
Initial readout address of the shared memory for the intelligent unit (S2)
Enter the specification, referring to the shared memory tables for the various intelligent units.
To specify address 2, specify “K2”.
Number of words to be read (n)
Specify this using a K constant.
To read 10 words of data, specify “K10”.
Flag conditions
・Error flag (R9007): Turns on and stays on when:
・Error flag (R9008): Turns on for an instant when:
− The control data S1 exceeds the limit of specified range.
− No MEWNET-F master unit is found.
− The area specified using the index modifier exceeds the limit.
− The read data exceeds the area of D.
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