Pro II: Analog Input Modules
Pro II-AIn-F-4/16 Rev. E
ADwin
78
ADwin-Pro II
Hardware, manual Dec. 2018
5.5.8 Pro II-AIn-F-4/16 Rev. E
The analog input module Pro II-AIn-F-4/16 Rev. E has 4 Fast-ADC of 16 Bit
and 4 differential inputs.
The inputs are available with the following connectors:
– Pro II-AIn-F-4/16: shielded LEMO connectors, 1-pole, CAMAC Euro-
pean norm.
– Pro II-AIn-F-4/16-L2: shielded LEMO connectors, 2-pole, CAMAC Euro-
pean norm.
– Pro II-AIn-F-4/16-D: D-Sub female connector 37-pin.
– Pro II-AIn-F-4/16-B: BNC female connectors.
The module’s converters run with a clock rate of up to 4MHz. Since revision
E04, module memory enables to buffer data–especially with burst sequences.
The module Pro II-AIn-F-4/16 Rev. E has an input voltage range of ±10V and
a software selectable gain of 1, 2, 4 or 8. The adjustment of gain and offset is
done by software (see chapter 6 "Calibration").
Since revision E04, the module provides several operation modes for convert-
ing analog signals:
– Single measurement: You start each conversion manually, query the
measurement value and processes it in the
ADbasic
program.
– Single burst sequence: The
ADbasic
program starts a compelete burst
measurement sequence, that is a defined number of single measure-
ments.
– Continuous burst sequence: The
ADbasic
program starts a burst mea-
surement sequence, that continuously does single measurements until
the sequence is stopped. The data is stored in a fifo-like memory.
As an alternative to the operation modes above, the module can perform a
simultaneous conversion on all channels using a sequence control. This dis-
burdens–compared to single measurements with the instruction
P2_ADCF
–the
processor module, which only reads and processes the converted measure-
ment values. The conversion can be either triggered periodically with regular
time delays or by external event signals.
As an option, the module can return the moving average of 2…32 measure-
ment values instead of simple measurement values. For each average value,
the module separately samples the number of set measurement values.
The module can control an upper and lower limit for each channel separately.
The module collects the maximum and minimum value of each channel and
provides them via software instruction.
Burst Sequence
The module processes burst sequences independent from the processor mod-
ule of the
ADwin
system. The measurement values–number and measuring
rate to be defined ahead in the program–are stored in the burst-memory of the
module. The processor module then reads the stored values (even during a
burst sequence) and processes them.
Burst sequences are available since rev. E04.
With a continuous burst-sequence, the measuring rate must be syntonized to
the reading rate. Please note:
– Measurement values are always read in blocks, the block size is select-
able. The greater the data blocks are, the faster the average reading is
done.
