Differential Measurement Mode - Balluff BOD 26K LB04-S115-C Instructions De Service Et De Montage

No. Action Picture
follows
26 Switch differential thickness measurement mode (slave) on / off:
Q Q
1
OK
I
C FA
push
25x
27 Switch parallel differential measurement mode (slave) on / off
Q Q
1
I OK
C FA
push
26x
7.2.3

Differential measurement mode

INFORMATION
Only BOD 26K sensors with the same measuring range (type BOD 26K-LBR04, or -LBR05) and
serial interface (version LBR) can be used for differential measurement.
Simultaneous connection to PLC control or a PC via the RS485 interface is not possible with
differential measurement.
With this measuring procedure, two BOD 26K-LBR sensors are connected to one another. The sensors are positi-
oned opposite each other (differential thickness measurement, function no. 26) or are aligned parallel to one another
(parallel differential measurement, function no. 27). With differential thickness measurement, the measuring ranges
can overlap (1), be directly adjacent (2) or apart (3) (illustr. 20).
If a sensor is set as master or slave, communication with the PC is not possible.
1
2
3
A. The following steps must be carried out for differential measurement:
INFORMATION
We recommend resetting sensors to factory setting (function 22, or 7.2.2) before configuration of
sensors as master or slave.
When using two sensors, measuring errors (resolution, response time, non-linearity, etc.) have to
be multiplied by factor 2 with differential thickness measurement.
58
Action Reaction / Status indicator „ZA" (red)
Switch with ON, differential thickness measurement mode
2
 slave active
SET
OFF, differential thickness measurement mode
 slave inactive
Description of function - sensors positioned opposite each other (see chapter 7.2.3).
Switch with ON, parallel differential measurement mode
2
 slave active
SET
OFF, parallel differential measurement mode 
slave inactive
Description of function - sensors positioned parallel (see chapter 7.2.3)
No. 834826 E Edition 1310; Replaces edition 1111; Subject to modification
Mounting and
operating instructions
Factory setting
Inactive
(„ZA" = OFF)
(„ZA" = OFF)
Measuring range
Illustr. 20
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