Specifications

Analog Input Modules
31007715 6/2008 147
STB ACI 8320 Specifications
Table of
Technical
Specifications
The module’s technical specifications are described in the following table.
description four differential analog current input
channels with Hart tolerance
analog current range default 4 to 20 mA
user-configurable 0 to 20 mA
resolution default 15 bits + sign
user-configurable 16 bits unsigned
returned data format IEC
module width 18.4 mm (0.72 in)
I/O base STB XBA 2000 (see p. 395)
operating voltage range 19.2 to 30 VDC
logic bus current consumption 95 mA
nominal sensor bus current consumption 150 mA
hot swapping supported* NIM-dependent**
reflex actions supported for 2 inputs only, channels 1 & 2
profile ID 55 hex
input response time nominal 80 ms for all channels
maximum 110 ms for all channels
isolation field-to-bus 1500 VDC for 1 min
channel-to-channel 200 VDC
analog module
sensor bus
500 VDC
input filter digital filter of 30 Hz @ -3 dB
integral linearity ± 0.05% of full scale
differential linearity monotonic
absolute accuracy typically ± 0.3% of full scale @ 25°C and
± 0.4% maximum of full scale
temperature drift typically ± 0.005% of full scale/ °C
operating temperature range*** 0 to 60°C
storage temperature -40 to 85°C
over-range margin 2.4%
under-range margin (4 to 20 mA range only) 2.4%
input impedance ≤ 300 Ω
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