Inputs
The Communication card features eight independent inputs (INPUTS 0 - 7), which can be used to trigger events. The
inputs are optically isolated and typically connected (directly or indirectly) to a PLC or photoelectric sensor. The
Communication card will respond to an event when the voltage difference between the INPUT and INPUT COMMON
exceeds 10VDC. Refer to Wire Inputs and Outputs on page27 for common wiring configurations.
Note:
l There are two sets of inputs: INPUTS 0 - 3 share the INPUTCOMMON 1 connection and INPUTS 4 - 7 share
the INPUTCOMMON 2 connection. Therefore the input devices for each set of inputs must be the same;
either current sinking or current sourcing.
l To maintain optical isolation of the I/O lines, the devices connected to these lines must not be connected to
the same power supply as the PC. If they are connected to, or share a ground with, the same power supply,
they may still function but will no longer be optically isolated.
Specification Description
Input Voltage Limit 24VDC
Voltage
Input ON: >10VDC
Input OFF: < 2VDC
Current
Input ON: > 6mA
Input OFF: < 1.5mA
Each line is optically isolated and polarity-independent.
14
Specifications
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