SEW-Eurodrive IPOS plus - Movilink Command; Reading an Internal Unit Parameter

Manual – IPOSplus®
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18
MoviLink command
Compiler – Examples
18.6 MoviLink command
The _MoviLink command exchanges data or parameters between units via SBus or
RS-485. It is also possible to read or change internal unit parameters.
The following three examples are to illustrate the function of the _MoviLink command:
• Reading an internal unit parameter: The set reference travel type is read via
_MoviLink.
• Writing a variable via SBus: If a MOVIDRIVE
®
unit is connected via SBus, variable
H200 is written depending on the status of the binary input DI17.
• Reading a parameter via SBus: The process data configuration of the inverter
connected by SBus is read with the address 10.
18.6.1 Reading an internal unit parameter
/*=========================================
Type of reference travel actually entered
in P903 is read in task 1 and written to
variable lRefType.
=========================================*/
/*=========================================
IPOS Source file
=========================================*/
#include <constb.h>
#include <iob.h>
// Definition of MOVLNK structures
MOVLNK tRefType;
MLDATA tData;
// Definition of Variables
long lRefType;
/*=========================================
Main program
=========================================*/
main()
{
// Initialization of MoviLink for bus transfer
tRefType.BusType = ML_BT_S1;
tRefType.Address = 253 // own inverter
tRefType.Format = ML_FT_PAR; // only parameters
tRefType.Service = ML_S_RD; // read
tRefType.Index = 8626; // P903 RefType
tRefType.DPointer = numof(tData); // data buffer
// Main program loop
while(1)
{
// Read type of reference travel
_MoviLink( tRefType );
lRefType = tData.ReadPar;
}
}
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