KEYENCE DL-PD1 - Manual (Page 64)

4-6 - PROFIBUS DP Compatible Network Unit DL-PD1 User's Manual (GT-70A) -
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Comparator Value Property of the Sensor Amplifier
Using the "Comparator value property", you can check if the sensor amplifier connected
to the DL-PD1 is correctly detected.
There are three types of the comparator value property - "Comparator value invalid",
"Comparator value over range" and "Comparator value under range".
The comparator value property is assigned as the following communication data.
The sensor amplifier status displayed by the comparator value property is shown below.
Communication method Assigned area
Cyclic communication
Sensor amplifier (Slot 1 to 15) byte1, bit1 to 3 in the monitor
mode
Acyclic communication DL-PD1 (Slot 0) Index66 to 69
Comparator value property
Sensor amplifier status corresponding to the comparator
value property
Comparator value invalid Sensor amplifier indicator "---"
Comparator value over range Sensor amplifier indicator "FFFF"
Comparator value under range Sensor amplifier indicator "-FFFF"