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5.5 Connecting Digital I/O to the System
XIO Input Specifications
Operational voltage range
OFF state voltage range
ON state voltage range
Typical threshold voltage
Operational current range
OFF state current range
ON state current range
Typical threshold current
Impedance (V
Current at V
Turn on response time (hardware)
Software scan rate/response time
Turn off response time (hardware)
Software scan rate/response time
NOTE: The input current specifications are provided for reference. Voltage
sources are typically used to drive the inputs.
88
Table 5-7. XIO Input Specifications
/I
)
in
in
= +24 VDC
in
eCobra User's Guide
0 to 30 VDC
0 to 3 VDC
10 to 30 VDC
V
= 8 VDC
in
0 to 7.5 mA
0 to 0.5 mA
2.5 to 7.5 mA
2.0 mA
3.9 K Ω minimum
≤ 6 mA
I
in
5 µsec maximum
16 ms scan cycle/
32 ms max response time
5 µsec maximum
16 ms scan cycle/
32 ms max response time
14402-000 Rev. F
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