72-901-04 Rev A 8/12/2019
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Relay States
Relay states are presented to the Modbus master /client as input registers in the
form of bit fields. Relay state indicators are binary, meaning they have two states.
A “0” indicates the relay is inactive while a “1” indicates the relay is active.
The following registers are accessible on all models. However, the content of these
registers is model dependent. The user must interpret the content of these
registers within the context of the model and the associated hardware.