Differential Measurement Mode - Sensopart FT 50 RLA 70-L8 Mounting And Operating Instructions

No. LED pattern
Description
26 Switch differential thickness measurement mode (slave) on / off:
Q Q
1 2
I OK
Switch with
C FA
SET
Description of function - sensors positioned opposite each other (see chapter 7.2.3).
27 Switch parallel differential measurement mode(slave) on / off
Q Q
1 2
I OK
Switch with
C FA
SET
Description of function - sensors positioned parallel (see chapter 7.2.3)
7.2.3

Differential measurement mode

INFORMATION
Only FT 50 RLA sensors with the same measuring range (type FT 50 RLA-70 or -220) and serial
interface (version S1) 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 FT 50 RLA-S1 sensors sre 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
58
Status indicator „ZA"
ON, differential thickness measurement mode
slave active

OFF, differential thickness measurement mode
slave inactive

ON, parallel differential measurement mode
slave active

OFF, parallel differential measurement mode
slave inactive

Measuring range
FT 50 RLA Disctance sensor - GB - 068-13671 - 20.04.2009-05
Mounting and
operating instructions
Factory setting
Inactive
(„ZA" = OFF)
(„ZA" = OFF)
Illustr. 20
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