Analog Input Module Characteristics
The BMXSAI0410 safety analog input module presents the following performance characteristics:
Static characteristics |
Value |
|
|---|---|---|
Input impedance in signal range |
286 Ω |
|
Analog input error |
Max full scale error @ 25°C |
0.30% |
Analog input error (=safety tolerance) |
Max full scale error full temperature range - 25°C to 70°C |
0.35% |
Reliability |
MTTF @ 25°C |
54.2 years |
Linear Measuring Range |
0...25 mA and 12,500 counts (500 ct/mA) |
|
Out of Range Detection |
< 3.75 mA and > 20.75 mA |
|
Digital resolution |
Resolution |
16 bits |
Number of channels simultaneously converted |
4 |
|
Data format returned of the application program |
binary |
|
Value of an LSB |
0.191 μA |
|
Maximum permanent allowed overload |
25 mA |
|
Digital output reading under overload condition |
overload will be signaled to client application |
I = 25 mA |
Type of input |
type |
4-20 mA |
type |
floating isolated inputs |
|
maximum Range for input |
0-25 mA |
|
Common-mode characteristics |
common mode rejection |
to be measured |
Dynamic characteristics |
Value |
|
|---|---|---|
input filter characteristics |
order |
second |
Frequency cut at -3dB |
10.47 Hz |
|
General characteristics |
Value |
|
|---|---|---|
Conversion method |
successive approximation |
|
Type of protection |
protecting diode |
|
Isolation potential under normal operation |
Insulation between channel |
500 VAC eff for 1 min. |
Insulation channel to backplane |
1500 VAC eff for 1 min. |
|
External power supply data - if required |
not required |
|
Type & length of cable - installation rules recommended to provide interference immunity |
shielded cable |
|
Calibration or verification to maintain rated accuracy |
No calibration |
|
Typical examples of external connections |
temperature sensor & pressure sensor |
|
Miscellaneous characteristics |
Value |
|
|---|---|---|
Monotonicity with no missing code |
yes |
|
Crosstalk between at d.c. & a.c. 50Hz and a.c. 60Hz |
– |
|
Non-linearity |
+/- |
0.006% (LSB) |
Repeatability at fixed temperature after specified stabilization time |
– |
|
3.3V consumption |
Typical |
223 mA |
Maximum |
256 mA |
|
24V consumption |
Typical |
92 mA |
Maximum |
115 mA |
|
Power dissipation |
Maximum |
3.98 W |