DL06 Micro PLC User Manual, 3rd Edition, Rev. E
Chapter 2: Installation, Wiring, and Specifications
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Glossary of Specification Terms
Discrete Input
One of twenty input connections to the PLC which converts an electrical signal from a field
device to a binary status (off or on), which is read by the internal CPU each PLC scan.
Discrete Output
One of sixteen output connections from the PLC which converts an internal ladder program
result (0 or 1) to turn On or Off an output switching device. This enables the program to turn
on and off large field loads.
I/O Common
A connection in the input or output terminals which is shared by multiple I/O circuits. It
usually is in the return path to the power supply of the I/O circuit.
Input Voltage Range
The operating voltage range of the input circuit.
Maximum Voltage
Maximum voltage allowed for the input circuit.
ON Voltage Level
The minimum voltage level at which the input point will turn ON.
OFF Voltage Level
The maximum voltage level at which the input point will turn OFF
Input Impedance
Input impedance can be used to calculate input current for a particular operating voltage.
Input Current
Typical operating current for an active (ON) input.
Minimum ON Current
The minimum current for the input circuit to operate reliably in the ON state.
Maximum OFF Current
The maximum current for the input circuit to operate reliably in the OFF state.
OFF to ON Response
The time the module requires to process an OFF to ON state transition.
ON to OFF Response
The time the module requires to process an ON to OFF state transition.
Status Indicators
The LEDs that indicate the ON/OFF status of an input or output point. All LEDs on DL06
Micro PLCs are electrically located on the logic side of the input or output circuit.
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