Digital Input; Analog Output - TR-Electronic _LLB500(F)-00601 Benutzerhandbuch

Electrical components

8.4 Digital Input

The Digital Output (DO1) can be configured as a Digital Input (DI1). This is useful for triggering
measurements by means of an external switch or push button. Please refer to chapter 10.3.5 "Digital
input" on page 140.
Low Level is:
High Level is:

8.5 Analog output

The analog output of the LLB measuring system is a current source (0..20 mA or 4..20 mA). It is
capable of driving loads up to 500 Ω. The precision of the analog output in the reference to the
measurement range is ± 0.2% at the LLB-65 and ± 0.1% at the LLB 500 (F).
e = Accuracy
Dist
Explanation:
Name
e
Dist
Accuracy
Device
Accuracy
AO
MaxDist
Conf
MInDist
Conf
Example with LLB500-00601:
Accuracy
Device
MaxDist
Conf
MInDist
Conf
Accuracy
AO
e
Dist
The stated errors include all possible errors as:
Temperature drift
-
linearity
-
surface color
-
measurement distance
-
The best accuracy can only be achieved by using the digital interfaces
(RS-232, RS-422 or SSI).
 TR-Electronic GmbH 2011, All Rights Reserved
Page 126 of 156
U < 2 VDC
DI1
U > 9 VDC and U < 30 VDC
DI1 DI1
(MaxDist
+
Device
Definition
Total error
Device accuracy
Accuracy of the analog output
Configured max Distance
Configured min Distance
.......................................................................................
.......................................................................................
.......................................................................................
.......................................................................................
............ 3 mm +
TR - ELE - BA - DGB - 0021 - 06
– MInDist ) * Accuracy
Conf Conf
100
(10000 – 0) * 0,1
100
AO
Unit
mm
mm
%
mm
mm
± 3 mm
10 000 mm
0 mm
± 0,1 %
= ± 13 mm
Printed in the Federal Republic of Germany
03/09/2016