Installation guide

57
Characteristics
Advantys
™
STB Distributed I/O
Solution 0
Analog input modules
(1) Basic NIM modules do not support hot swapping of input/output modules.
Characteristics of analog input modules
Type of module STB AVI 1255 AVI 1270 AVI 1275
Type Basic Standard Basic
Number of channels
2
Range
0…10 V ±10V
Resolution
bits 10 11 + sign 9 + sign
Maximum input
c 50 V
Response time
ms 5 for both channels
Swapping Cold swap
Yes
Hot swap
Yes, depending on NIM and mandatory nature of module. See table on page 41
Data format
Complies with IEC/EN 61131-2
Update time
ms 10 for 2 channels
Input filter
Single low-pass filter with cut-off frequency of 25 Hz
Integral linearity
% of
full
scale
±0,2
Differential linearity
Monotonic
Input impedance
Ω 400 K
Current supplied to sensors, per channel
mA 100
Electronic short-circuit protection
No Yes No
Source impedance
kΩ 1 max.
Absolute accuracy
± 0.5% of full scale at 25°C (77°F) ± 0.75% of full scale
at 25°C (77°F)
Temperature drift
± 0.01% of full scale per degree C
Isolation Between channels and
logic bus
V c 1500 for 1 minute
Between channels and
sensor bus
V c 30 (when sensor bus power supply separate from sensor power supply)
Addressing
2 words
(1 data word per channel)
4 words
(2 words per channel)
2 words
(1 data word per channel)
I/O base
STB XBA 1000
PDM power
distribution module
Voltage
V c 24
Model
STB PDT 3100/3105
Logic bus current consumption at c 5 V
mA 60
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