Allen-Bradley 871TM-M**NP12 Series, Руководство пользователя, Страница: 23 / 90

Rockwell Automation Publication 871TM-UM002C-EN-P - October 2017 23
871TM Long-range Sensor with IO-Link Overview Chapter 3
871TM Sensor
IO-Link Features
The following features are available in the 871TM sensor:
• Triggered: Is the process data bit that communicates the change in state
of the 871TM sensor upon the detection of a target. The status of the
triggered bit can be viewed in a Studio 5000 controller tag.
• Polarity: Changes the operation of the triggered parameter. It performs
the same function as normally open or normally closed in standard I/O
(SIO) mode.
• Margin Status: Is the process data bit that communicates the target is
within or beyond 80% of the maximum sensing range of the sensor. The
margin status bit can be viewed in Studio 5000 controller tag.
• Switching Timer Mode : ability to manipulate the output of the sensor
in relation to timing. It is useful for precision applications where the
output of the needs to be precisely triggered at a certain time.