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PPC Manual Revision 1
Chapter 24: I Relays (Coil)
24.1 Overview
This chapter describes the functions and applications of the I relays.
I relays are used in Modbus communication and contact input / output functions.
I relays contain status information of errors, operation, and alarms. Contents of I relays
I relays have the same information as the D registers but with I relays, some of the
Use of the I relays enables the following:
Centralized control by the host computer
D registers and I relays of the PPC5 are used for parameter settings.