16
Rockwell Automation Publication 871FM-UM002A-EN-P - April 2017
Chapter 3
871FM Miniature Metal Flat Pack with
IO-Link O
verview
Real-time Diagnostics and Trending
• Real-time monitoring of the entire machine down to the sensor level
• Optimized preventive maintenance—identify and correct issues before
failures can occur
• Detect sensor malfunctions/failure
Sensor Health Status
• Real-time monitoring verifies that sensors are operating correctly
Device Profiles and Automatic Device Configuration
• “Golden” device configurations are stored in the IO-Link master
module
• Within minutes instead of hours, modify sensor parameters to produce
different finished goods
Descriptive Tags
• Faster programming during initial setup
• More efficient troubleshooting-process data tags are named based on the
information they provide
• Easily monitor sensor data though intuitive tag names
How Does IO-Link Work?
IO-Link delivers additional operational data and diagnostics using the same
standard field cabling that is used today. By connecting an IO-Link sensor to an
IO-Link master, the field-device data and diagnostics are accessible. This
connection allows you to go beyond detecting products on the machine. You
can now monitor the health of the machine as it runs.
Pin
Signal Remark
1
L+
24V
2
Out
Depends on sensor
3
L-
Ground
4
C/Q
Communication/
switching signal
IMPORTANT
The response time of an IO-Link system could be fast enough for high-speed
applications. In this case, it is possible to monitor/configure the sensor
through IO-Link on pin 4 while pin 2 is connected to a standard input card.