Nidec Unidrive M300 - Page 160

160 SI-Ethernet User Guide
Issue: 3
The user program in the SI-Applications Plus module may be written as follows (some changes
may be necessary to account for bus cycle times and parameter update rates):
Initial{
// Initialise variables
NewValue% = 0
#86.03 = 0 // Set digital output0 off
#86.04 = 0 // Set digital output1 off
#20.011 = 0 // Set input parameter 1 to 0
#20.012 = 0 // Set input parameter 2 to 0
#20.021 = 0 // Set output parameter 1 to 0
REINIT // Initialise configuration
} //Initial
Background{
top:
IF #18.32 = 1 THEN
// Output trigger set
// Check first sum value against NewValue
IF #20.021 = NewValue% THEN
// OK increment values by 1
NewValue% = NewValue% + 1
IF NewValue% > 32767 THEN NewValue = -32768
#20.011 = NewValue%
#20.012 = NewValue%
// Set input trigger – Read input parameters and transmit to master
#18.031 = 1
// Delay for PLC to get inputs - depends on cycle time and
parameter access time
DO WHILE #18.031 = 1
// Dummy command
NewValue% = NewValue%
LOOP
// Reset output trigger
#18.032 = 0
// Delay for outputs to be written - depends on parameter access time
DO WHILE #18.032 = 0
// Dummy command
NewValue% = NewValue%
LOOP