KEYENCE DL-DN1 - Manual (Page 43)

3-2 I/O Communication
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- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (SK-1000) -
Reading comparator values (P.V. values) from sensor amplifiers
Comparator values (P.V. values) are read by reading the IN areas which are assigned
the ID numbers of sensor amplifiers.
Device assignments: "Comparator value (P.V. value)" (page 3-10)
This example illustrates how to read the comparator values from the sensor amplifiers
of ID 01, 02, and 03.
It assumes that the operating mode assigned to the devices are "3-output mode +
current value, no extended."
(1) When the comparator value of a sensor amplifier is updated, the new comparator
value is entered into the IN area via I/O communication.
(2) The property of the comparator value is entered. If the comparator value of a
sensor amplifier is "over," "under," or "invalid," the bit corresponding to the ID
number of that sensor amplifier flips to 1.
PLC (2)
Comparator value property
Each bit of IN [n+4]
Comparator value of ID 01 1234 4567 6789
IN area [n+5 to 6]
Comparator value of ID 02 2345 5678 7890
IN area [n+7 to 8]
Comparator value of ID 03 3456 8901
IN area [n+9 to 10]
Sensor amplifier
Comparator value of ID 01 1234 4567 6789
Comparator value of ID 02 2345 5678 7890
Comparator value of ID 03 3456 8901
(1)