Rockwell Automation Publication 842E-UM002A-EN-P - November 2013 15
Chapter 2
About the Encoder
The 842E-CM Integrated Motion encoder on EtherNet/IP provides a
feedback-only axis for midrange drive applications on EtherNet/IP
networks.
Features
The 842E-CM encoder features include:
• Compatibility with star, linear, and device level ring topologies
• Robust nickel code disk for harsh ambient conditions
• Configurable resolution per revolution: 1 to 262,144
• High precision and availability
• Ball bearing spacing of 30 mm for longer life
• Face mount flange and servo flange/blind hollow shaft and
through hollow shaft
• 18-bit single turn resolution
• 30-bit total resolution multi-turn resolution
Encoder Version Bulletin Number
Single-turn 842E-CM-Sxxxx
Multi-turn 842E-CM-Mxxxx
Net
Mod
Link 1
Screw cover
XS (Axis)
Link 2
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