Eaton Electrical Field Devices Communication Wiring Specification Application Notes

2022-10-21
● INCOM was developed specifically for power distribution and industrial applications. It centers on the Industrial Communications (INCOM) chip, which employs Frequency Shift Key (FSK) technology and has the following characteristics:
■ Provides exceptional electrical noise immunity typically caused by nearby electrical sources.
■ Devices supporting INCOM are easily “daisy chained” together with Twisted Shielded Pair – see Section 1.3.1 Cable Selection.
■ Supports Daisy Chain, Star, and Multi-Level Network Segment Topologies – see Figures 1-1, 1-2 and 1-3 for details. Note: Star Segment Topology is not recommended for new designs.
■ Wiring may be run as close to power wiring as NEC (or CSA) and local safety codes permit. Attention should be paid to NEC Articles 725 and 800 (NEC 1993); and CEC section 60 [in particular, rule 60-306 (CEC 1990)]. Note: To minimize data corruption it is not advisable to run INCOM wiring in a power tray common with high frequency loads such as adjustable frequency drives or soft starts.
■ Supports distances up to 10,000 ft (3048 m) per segment when designed within the specifications of this guideline.
■ Supports up to 1000 devices on a single network segment.
■ Supports sub-network master devices and associated sub-networks – see Table 1-1.
■ Supports baud rates of 1200 and 9600.

EATON ELECTRIC

Electrical Field Devices

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Application note & Design Guide

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August 2008

Rev. 4

TD 17513

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