SIGMATEK AI 022-1, Operating Manual

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AI 022-1 S-DIAS STRAIN GAUGE INPUT MODULE
Page 20 04.11.2020
7.2 Analog Inputs
ADC configura-
tion valid
State
1 The configuration of the ADCs is valid => the analog values can
be used in the application
0 The configuration of the ADCs is invalid
-1 Error while sending the configuration to the ADCs
Analog Input [1-
4]
Input Current value of the respective analog channel (if AI1[1-2]ConfigValid, as well
as the Ready bit of the AI[1-2]ADCState is set) Displays the value
16#80000010 if the ErrorBit on the server AI[1-2]ADCState is set.
Zero Scale Off-
set for AI [1-2]
Output Scale null point according to the last calibration (updated with each change in
the FilterDepth, SincSetting, Gain or OpMode settings)
Full Scale Off-
set for AI [1-2] Output Scale end value according to the last calibration (updated with each change
in the FilterDepth, SincSetting, Gain or OpMode settings)
AI[1-
2]ADCState
State Shows the status of the respective input:
Bit 0-4 Not used
Bit 5 No reference (set if the reference voltage is too low)
Bit 6 error
The ADC error bit is set when all bits in the analog value were
referenced to 0 or 1. The bit is cleared when
the error no
longer exists and the analog value valid again.
Possible Causes:
-Value outside of the valid measurement range
- No reference voltage
Bit 7 Not Ready
Indicates when newly converted values are available (for valid
values, it is always set to 0 in Continuous mode)
AI[1-2]Fil-
terDepth
Property Value setting for the filter depth of the respective ADC (as a default 2)
Valid range of values: 2-1023
AI[1-2]SincSet-
ting
Property Selection of the sinc filter type of the respective ADC:
0 sinc 4 Filter is used (default)
1 sinc 3 Filter is used (default)
The advantage of the sinc 3 filter, as compared with sinc 4 filter, is the lower
settling time. The sinc 4 filter however, provides better 50 / 60 Hz suppression.
AI[1-2] Gain Property Gain selection to select the input range of the respective ADC:
0 Gain 1 (± 80 mV)
1 Not used (if selected, the default value is used)
2 Not used (if selected, the default value is used)
3 Gain 8 (± 10 mV) (default)
4 Gain 16 (± 5 mV)
5 Gain 32 (± 2,5 mV)
6 Gain 64 (± 1,25 mV)
Operating mode
for AI[1-2]
Output Selection of operating mode for the respective ADC:
0 Continuous conversion mode (default)
6 System zero-scale calibration
7 System full-scale calibration
Reset to Fac-
tory Settings
Output
-1 Function not available (available starting with FW version 1.80)