PROFIBUS interface
57
AMS 304
i
Leuze electronic
9.4.3.2
Module 1: Position value
Description
Outputs the current position value.
The parameters for sign, unit, resolution, count direction and offset remain adjustable.
Parameters
Parameter
Description
Rel.
addr.
Data
type
Value range
Default
Unit
CR to
module
metr.
Inch
Sign
Output mode of the sign.
Sign affects position and velocity output.
0.0
Bit
0: two's complement
1: sign + quantity
0
–
–
Measure-
ment unit
Selection of the measurement unit
1)
.
The parameter applies to all values with
measurement units. The parameter
applies to all interfaces.
0.1
Bit
0: metric
1: inch (in)
0
–
–
Resolution
Resolution of the position value applies
only to the PROFIBUS output. The reso-
lution does not apply to:
-
Static preset
-
Dynamic preset
-
Offset
The SSI interface has a separate param-
eter for the resolution.
0.2
…
0.4
Bit
001=1: 0.001
010=2: 0.01
011=3: 0.1
100=4: 1
101=5: 10
110= free resolution
4
mm
in/100
19a
Count
direction
Count direction positive:
Counting direction negative:
The parameter applies to all interfaces.
The count direction changes the sign
during velocity measurement.
For the SSI interface, no negative
position values can be transferred. In this
case, the value 0 is output at the SSI
interface.
A suitable offset is to be selected so that
only positive values are transferred.
0.5
Bit
0: positive
1: negative
0
–
–
Offset
Output value=measurement
value+offset.
The parameter applies to all interfaces.
Attention
:
If the preset is activated, it has priority
over the offset. Preset and offset are not
offset against each other.
The resolution of the offset value is inde-
pendent of the resolution selected in
module 1.
The entered offset applies immediately
without any further release.
1 - 4
sign
32 bit
-999999 … +999999
0
mm
in/100
–
Parameter length: 6 bytes
1)
see following notice!
a
b
c
d
0m
+100m
0m
-100m
e
