MVS-8100D Hardware Description
2
40
Cognex MVS-8100D and CDC Cameras Hardware Manual
LED Numbering
The external I/O module has silk-screened labels identifying the LEDs for each input and
output plus/minus connection pair. The labels identify the connection points with
zero-based numbers, IN0 through IN7, and OUT0 through OUT7.
Cognex software uses one-based numbers in the names of parallel I/O signals.
Remember to transpose the connection point numbers to the Cognex signal numbers,
as shown in Table 8 on page 22 and Table 9 on page 23.
Power
+5 V DC, supplied from the vision system
Maximum Output Current
24 mA (sink or source)
ON State Voltage Drop
0.8 V DC @ 10 mA, 2.6 V DC @ 24 mA
OFF State Leakage Current
100 µA maximum @ 15 V DC
Output Delay
ON: 6 µSec
OFF: 130 µSec @ 5 mA; 95 µSec @ 10 mA;
85 µSec @ 15 mA
Input Resistance
~1000 Ohms
Input State Current
ON: 3.5 to 24 mA
OFF: 500 uA
Input Delay
ON: 30 µSec @ 3.5 mA; 8 µSec @ 15 mA
OFF: 45 µSec @ 3.5 mA; 80 µSec @ 15 mA
Field Wiring Size
26 to 12 AWG
Terminal Block Torque
Maximum 0.8 (7) N-M (in-lbf)
Cable
7 feet (2.1 meter, supplied
Environmental
Operating Temperature: 0 to 50° C
Storage Temperature: –20 to 85° C
Relative Humidity: 5 to 95 percent non-condensing
Specification
Description
Table 20. External I/O module specifications
