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System Monitor
80175-01
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SERIAL INTERFACE OVERVIEW
discussion of the message content and other related protocol details refer to the documents listed
in the forward of this manual.
The Serial Interface is designed to operate concurrently with either Transient Data Manager (TDM)
or Dynamic Data Manager (DDM).
OTHER INTERFACES
The two protocols implemented by the Serial Interface, Modicon Modbus and Allen Bradley full
duplex, are used by many other manufacturers in communications interfaces into their Distributed
Control Systems (DCS). This manual describes two known interface connections into Honeywell and
Allen Bradley systems. Similar connections can be made into other DCSs that support either of these
two protocols. Consult the factory for details on interface requirements for other DCSs.
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