Operating Instructions
IS1 PROFIBUS 3.00 E
- Technical alterations reserved -
62
PROFIBUS DP interface for IS1+
3.3 Data word structure of the I/O modules
Analog modules
Analogue signals are exchanged between the IS1+ field station and an automation system in 16-
bit two’s
complement format (signed integer). Converting to and from floating point variables (physical values) must be
performed in the automation system if required.
3.3.1.1 AIM, AIMH (9460/..., 9461/...
, 9468/…, 9469/…)
Measuring range
0
– 20 mA
Units
%
Parameter:
Measurement range limits
according NAMUR
Range
Diagnosis
messages
Decimal
Hex
>23.518 mA
>21 mA
*1)
*1)
No
Yes
Short circuit
23.518 mA
21 mA
32511
29030
7EFF
7166
117.6%
105 %
No
Yes
Over range
-
.
.
.
20 mA
27648
6C00
100%
Nominal range
-
.
.
.
10 mA
13824
3600
50%
.
.
.
0 mA
0
0
0%
< 0 mA
0
0
0%
Measuring range
4
– 20 mA
Units
%
Parameter:
Measurement range limits
according NAMUR
Range
Diagnosis
messages
Decimal
Hex
>22.814 mA
>21 mA
*1)
*1)
No
Yes
Short circuit
22.814 mA
21 mA
32511
29376
7EFF
72C0
117.6%
106,25 %
No
Yes
Over range
-
20 mA
27648
6C00
100%
Nominal
range
-
.
.
.
12 mA
13824
3600
50%
.
.
.
4 mA
0
0
0%
3.999 mA
-1
FFFF
Under range
-
3,6 mA
2.4 mA
-691
-2765
FD4D
F533
-2,5%
-10%
Yes
No
< 3,6 mA
< 2.4 mA
*1)
*1)
Yes
No
Line break
*1) Transmitted value depends on parameterized behavior if an error occurs:
Parameterized behavior if an error occurs
Type of error
Value transmitted
if an error occurs
freeze
All IO-Module errors
Last valid value
-10%
-2765
0xF533
0%
0
0x0000
100%
27648
0x6C00
Status code
General rule to generate status information in AS for all AI signals:
Signal is disturbed if Value >= 32512 or Value<= -32512
see 3.4.1 Behavior of input signals in case of error
Short circuit
32767
0x7FFF
Open circuit
-32762
0x8006
2 wire calibration failed
-32749
0x8013
Parametrization error
-32748
0x8014
Plant Stop
-32747
0x8015
IO-Module does not respond
-32736
0x8020
Config. unequal from module
-32735
0x8021
Data not available
-32734
0x8022
IO-Module hardware error
-32733
0x8023
(SAIMH see operating instruction SAIMH 9462/... PROFIsafe)