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Model 1460 I/O Expansion Module Installation and Reference
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3.4
Input and Output Specifications
3.4.1 General Purpose Inputs
The 1460 I/O Expansion Module extends the capabilities of supported In-Sight vision sen-
sors by providing eight independent, general-purpose inputs (IN0-IN7) that can be used to
trigger event execution on the sensor.
Opto-isolators are used to interface the general-purpose inputs on the 1460 I/O Expansion
Module. Typically used to monitor the status of a load or a sensor (such as a limit switch,
pressure switch, or temperature switch), the general purpose inputs may be directly con-
nected to these inputs. When the input is active, it pulls the processor input up to 5V, activat-
ing the input circuit (Figure 3-5).
Figure 3-5: General Purpose Input Diagram
NOTE
The general purpose I/O signals are approximately 1ms slower in updating and are inverse
in polarity when compared to the high speed outputs. This delay must be considered when
trigger rates are faster than the required processing time.
Table 3-3: General Purpose Input Specifications
SPECIFICATION
DESCRIPTION
Voltage
ON 3 to 32V (24V nominal)
OFF 0 to 1.5V (10V nominal threshold)
Current
ON >50mA
OFF <50mA
Delay
600µSec max. between change of input state and completion of serial transmission to the
In-Sight sensor.
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