Flintec LDU 78.1 User Manual
Page 30
LDU 78.1 Technical Manual, Rev. 12 May 2011
Page 30 of 36
8.12.6. TL
Trigger Level
This command defines a level for a rising edge trigger on the measurement signal. Setting range: 0 to 99999.
Master (PC / SPS) sends
Slave (LDU XX.X) responds
Meaning
TL
T+99999
Request: TL = 99999
TL 1000
OK
Setup: TL = 1000
In the example a new measurement cycle would automatically start, if the signal exceeds 1000 d (e.g. 100,0 g;
trigger commands SD and TL).
Default setting: TL = 99999 [ = trigger level disabled]
Note:
All trigger possibilities are always available in parallel. If a software trigger (command TR) or a hardware
trigger (Digital input 0) will be used the trigger level should be set to its maixmum value (TL = 99999). This
setting disables the trigger level.
Figure: Time plot of a typical checkweigher cycle
8.12.7. SA
Send Triggered Average Value automatically
Master (PC / SPS) sends
Slave (LDU XX.X) responds
Meaning
SA
A+01.100
Measurement value: 1,100 d
This command will start to auto-transmit the measurement value of the current trigger cycle.