ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221
6226B_GE
43
Analog Inputs
Number
8 analog single-ended inputs
Signals/resolution in the process data word
(quantization)
See tables in Section „Formats for
Representation of Measured Values“ auf
Seite 16
Measured value representation
In the formats
IB IL
(15-bit with sign bit)
IB ST
(12-bit with sign bit)
IB RT
(15-bit with sign bit)
Standardized display
(15-bit with sign bit)
PIO
(16-bit)
Please read the notes on page 17 and page 24 on measured value representation in "IB
IL" and "standardized display" format.
Digital filtering (mean-value generation)
None or over 4, 16 or 32 measured values
Default setting: over 16 measured values
Conversion time of the A/D converter
10 µs, maximum
Process data update of the channels
Bus-synchronous
Firmware runtime depending on the command
– 0x00
hex
< 800 µs
– 5x00
hex
< 850 µs
– 7000
hex
/7100
hex
<1500 µs
– 7400
hex
/7500
hex
/7600
hex
/7700
hex
< 1300 µs
Analog Input Stages
Voltage Inputs
Input resistance
> 240 k
Ω
Limit frequency (-3 dB) of the input filter
3.5 kHz
Behavior upon sensor failure
Goes to 0 V
Maximum permissible voltage between analog
voltage inputs and an analog reference poten-
tial or between two voltage inputs
50 V