Data transfer within the PLC
849
Part III FP Instructions
Variable Data type Function
s1 Specifies the bank/slot number in the shared memory of the
intelligent module
s2
ANY16
Specifies the starting address in the shared memory of the
intelligent module (source data address)
n INT Specifies the number of words to be read
d ANY16 Starting address in the CPU for storing data read (destination
address)
For Relay T/C Register Constant
s1 WX WY WR WL SV EV DT LD FL dec. or hex.
s2 WX WY WR WL SV EV DT LD FL dec. or hex.
n WX WY WR WL SV EV DT LD FL dec. or hex.
d - WY WR WL SV EV DT LD FL -
No. IEC address Set If
R9007 %MX0.900.7 permanently
R9008 %MX0.900.8 for an instant
s1 exceeds the limit of specified range
the data read exceeds the area of d
Data types
Operands
Error flags
Example
In this example the function has been programmed in ladder diagram (LD) and structured text
(ST).The same POU header is used for all programming languages.
POU header
All input and output variables used for programming this function have been declared in the POU
header.