LION I/O Modules
▪
Analog Inputs, SIL0
67
10.4.2
Module Function
If certain events are occuring the module 803302 AI 4, current behaves as
follows:
10.4.3
Process Data Image
10.4.3.1
Input Data
Process Data (12 Bit)
▪ The LSB (least signification bit) is 4.88 uA.
▪ The measured values have a 16 bit intel format (unsigned).
Data Structure
Abb. 68: Process Data Structure – Input Data AI4 Current
Event
Modul Status
Description
Internal
Hardware
Error
Limited run
▪ The diagnosis bit is set for the affected
channel
▪ The channel will be set to 0x0000.
Limit Error
RUN
▪ The diagnosis bits are set for the
affected channel,
see diagnosis data.
▪ The channel will be set regarding the
limit value (minium or maximum
value).
Input Data
Process data, per input channel
(4 channels per module)
Value measurement
[2 Byte per channel]
Diagnosis data, per input channel
(4 channels per module)
Exceedance of measuring range/
Underrange of measuring
[1 Bit per channel]
Internal hardware error
[1 Bit per channel]
Total
10 Byte
Channel Status
Binary Value
0 mA
0x0000 (Measured Value)
10 mA
0x0800 (Measured Value)
20 mA
0x0FFF (Measured Value)
B
i
t 63 48 B
i
t 47 3
2
B
i
t 31 16 B
i
t 15
0
Ch
annel 4
Ch
annel 1
Ch
annel 3
Ch
annel
2
