Page 16
LDU68 Series Manual
Ideas in Measuring ..
TECHNIQUES LIMITED
See check weighing timing diagram on page 17
This command will start the measuring cycle immediately in the same way as the hardware trigger.
The average value (see GA below) will be calculated over the Measuring Time (MT) after a Start
Delay (SD). The GA value is only updated after a new measuring cycle has been completed.
TR Trigger
Master (PC / PLC) sends
LDU XX.X responds
Result
TR
OK
Measuring cycle triggered
See check weighing timing diagram on page 17
Please note that during the period after the measuring cycle has been triggered but before the
value of GA has been updated, the GA command will return a value 99999
Issuing the GA command, the LDU returns the current weight average calculated over the
Measuring Time MT. The GA value is only updated after another measuring cycle is completed. the
format of the response includes any decimal places etc. which may have been set.
GA Get Average
Master (PC / PLC) sends
LDU XX.X responds
Result
GA
A+01.100
Weight average (over time MT) GA = 1.100g
Master (PC / PLC) sends
LDU XX.X responds
Result
TL
TL_1000
T+99999
OK
Trigger Level set to 99,999 divisions
Trigger Level changed to 1,000 divisions
See check weighing timing diagram on page 17
TL Trigger Level (Continued)
Please note that during the period after the measuring cycle has been triggered but before the
value of SA has been updated, the SA command will return a value 99999
This command sends the ‘average’ weight value continuously. The SA command is issued without
any parameters and the LDU returns the current weight average calculated over the Measuring
Time MT. The SA value is only updated after another measuring cycle is completed. The format of
the response includes any decimal places etc. which may have been set.
SA Send the ‘Average’ weight value continuously
Master (PC / PLC) sends
LDU XX.X responds
Result
SA
A+01.100
Weight average (over time MT) SA = 1.100g
Issue 1h
Weight (g)
Time (ms)
trigger point
Timing Control Diagram
MT
SD
(Measuring Time)
(Start Delay)
TL
(Trigger Level)
TE
(Trigger Edge)
Page 17
LDU68 Series Manual
Ideas in Measuring ..
TECHNIQUES LIMITED
Issue 1h
