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