Specifications

Analog Input Modules
31007715 6/2008 127
STB ACI 1230 Specifications
Table of
Technical
Specifications
The module’s technical specifications are described in the following table.
description two single-ended analog current input channels
analog current range 0 ... 20 mA
resolution 12 bits
returned data format IEC
module width 13.9 mm (0.58 in)
I/O base STB XBA 1000 (see p. 391)
operating voltage range 19.2 to 30 VDC
logic bus current consumption 30 mA
nominal sensor bus current consumption 225 mA, with no load
hot swapping supported* NIM-dependent**
reflex actions supported
as inputs only
1
input response time nominal 5.0 ms both channels
isolation field-to-bus 1500 VDC for 1 min
analog module-
to-sensor bus
500 VAC rms (when sensor bus is not used for
field power
input filter single low-pass filter at a nominal 25 Hz
integral linearity +/- 0.1% of full scale
differential linearity monotonic
absolute accuracy typically +/- 0.5% of full scale @ 25°C
temperature drift typically +/- 0.01% of full scale/ °C
operating temperature range*** 0 to 60°C
storage temperature --40 to 85°C
over-range margin 2.4%
input impedance ≤ 300 Ω
maximum input current 25 mA, 50 VDC without damage
addressing requirement four words (two/channel)
offset calibration constant configurable in the range 0 ... +8191
(representing 0 ... +5.12 mA)
maximum coun configurable in the range 23 800 ... 32 760
(representing 14.88 ... 20.48 mA)
sensor bus power for accessories 100 mA/channel @ 30°C
50 mA/channel @ 60°C
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