Sensor LDU 68 Series, Manual

Page: 14 / 40

Ideas in Measuring ..
TECHNIQUES LIMITED
SR Software Reset
This command will respond with ‘OK’ and after a maximum of 400 ms perform a complete reset of
the LDU. This has the same functionality as powering off and on again (hardware reset).
Master (PC / PLC) sends
SR OK
LDU XX.X responds
Page 14 LDU 68 Series Manual Issue 1h
Ideas in Measuring ..
TECHNIQUES LIMITED
Page 15 LDU68 Series Manual
5.2 Check Weigher Set up Commands SD, MT, GA, TE, TR, TL
Note: All setups should be stored with the WP command before power off.
Set the delay (in milliseconds) between the falling or rising edge of the trigger pulse and the start of
the measurement cycle. Permitted values are 0 ... 500 ms. Factory default setting SD = 0 [Start
Delay = 0 ms]. To check the current setting issue the command without any additional parameters.
To change the setting issue the command with the additional parameter. See table below.
See check weighing timing diagram on page 17
SD Start Delay 0 ... 500 milliseconds
Master (PC / PLC) sends
LDU XX.X responds
Result
SD
SD_200
S+00100
OK
Start Delay set to 100 milliseconds
Start Delay changed to 200 milliseconds
Please note that if MT = 0 then the trigger and average functions are disabled. The factory default
setting MT=0 [Measuring Time = 0]. See check weighing timing diagram on page 17
Set the time (in milliseconds) during which the weight average will be calculated. Permitted values
are 0 ... 500 milliseconds. To check the current setting issue the command without any additional
parameters. To change the setting issue the command with the additional parameter. See table
below. See table below.
MT Measuring Time. Range 0 ... 500 milliseconds
Master (PC / PLC) sends
LDU XX.X responds
Result
MT
MT_200
M+00100
OK
Measuring Time set to 100 milliseconds
Measuring Time changed to 200 msecs
Using the TE command you can select whether the measuring cycle is triggered on a rising or
falling edge. Permitted values are 0 [Falling Edge] or 1 [Rising Edge]. Factory default setting TE =
0 [Falling Edge]. To check the current setting issue the command without any additional
parameters. To change the setting issue the command with the additional parameter.
TE Trigger Edge
See check weighing timing diagram on page 17
Master (PC / PLC) sends
LDU XX.X responds
Result
TE
TE_0
E:001
OK
Trigger Edge set on a rising edge
Trigger Edge changed to a falling edge
This command sets the trigger level above or below which (depending if the Trigger Edge TE is set
to a rising or falling edge) the measuring cycle starts. Permitted values 0 ... 99999. Factory default
setting TL = 99999. To check the current setting issue the command without any additional
parameters. To change the setting issue the command with the additional parameter. See table
below. (TL continues over the page.)
TL Trigger Level
Issue 1h