X-AI 32 02 3 Product Description
HI 801 055 E Rev. 4.00 Page 17 of 60
Analog inputs
Number of inputs (number of
channels)
32 with common ground AI-
(electrical isolation from the system bus and the
24 VDC supply voltage).
Nominal range 0/4...20 mA
Operating range 0...22.5 mA
Digital resolution 12-bit
Shunt for current measurement 200 Ω
1)
Maximum permitted current via shunt 50 mA
Withstand voltage of the input ≤ 10 VDC
Interference voltage suppression > 60 dB (common mode 50/60 Hz)
Refresh of measured values (in the
user program)
Cycle time of the user program
Sampling time 2 ms
Sequence of events recording cycle 2 ms
Measurement accuracy
Measurement accuracy on full
temperature range (-10 °C...70 °C)
± 0.15 % of final value
Settling time to 99 % of the process
value when the input signal changes
15 ms
1)
For high precision measurements see Table 11
Table 8: Specifications for the Analog inputs
Transmitter supply
Number of transmitter
supplies
32
Output voltage for
transmitter supply
26.5 VDC +0/-15 %
Output current of
transmitter supply
max.30 mA
Monitoring of
transmitter supply
Low voltage: 22.5 VDC
Overvoltage: 30 VDC
Max. number of
transmitter supplies
that may be
simultaneously short-
circuited.
12
If more than 12 supplies are closed for longer than 3 seconds, the
entire transmitter supply is switched off.
If the overload disappears within 30 seconds, the transmitter
supply is switched on again.
Maximum connectable
load
(transmitter + line)
≤ 750 Ω at 22.5 mA
Table 9: Product Data for the Transmitter Supply
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