Interbus interface
54
AMS 384
i
Leuze electronic GmbH + Co. KG
Note!
The AMS 384
i
provides a new 32
-
bit long data set every 1.7ms. Depending on the number
of configured participants, and their quantity of data to be transferred, the baud rate of
500kbit/s and 2Mbit/s may result in the same data set of the AMS 384
i
being read out multiple
times in succession.
With deactivated Interbus (Interbus OFF via the control panel/display), bit 31 remains stati
-
cally set to binary 1. Bit 30 to bit 0 are statically set to binary 0.
In the process data monitor of the Interbus master, a deactivated AMS 384
i
can be recog
-
nized by the data double word 80 00 00 00
H
.
Bit 0 - Bit 22
Measurement value:
Representation of the measured distance, gray-coded with a resolution of
1mm.
The encoding of the measurement value can be changed from gray
(default) to binary. The setting is in the menu Parameter -> Interbus
-
>
Encoding.
Bit 23
Sign of the measured distance:
0 = Positive distance value
1 = Negative distance value (e.g. using offset function)
Bit 24 - Bit 25
Reserve, static at binary 0
Bit 26
TMP - Temperature monitoring warning.
Permissible internal device temperature exceeded / not met.
Bit 27
LSR - Laser pre-failure message warning.
Laser diode old, device still functional,
exchange or have repaired.
Bit 28
ATT - Reception signal warning.
Laser exit window or reflector soiled.
Bit 29
PLB - Plausibility error.
Implausible measurement value. Possible causes:
Light beam interruption
Measurement range exceeded
Internal device temperature significantly overshot/undershot
Traverse rate >10m/s
Bit 30
ERR - Internal hardware error.
The device must be sent in for inspection.
Bit 31
Always static at 1, also in gray encoding.
