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MAGAZINE: October 2008
Taking Today's Plant into the Wireless Future
Taking Today's Plant into the Wireless Future
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DISCLAIMER: This article was submitted directly to this Web site by the supplier. Automation World assumes no responsibility for any inaccuracies.

White Paper: Discover Modbus-RTU

April 16th, 2008
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Content Type  This vital White Paper from Acromag provides in-depth discussion of the Modbus protocol, explains functions and illustrates key concepts.
Modbus devices communicate using a master-slave technique in which only one device (the master) can initiate transactions (called queries). The other devices (slaves) respond by supplying the requested data to the master, or by taking the action requested in the query. A slave is any peripheral device (I/O transducer, valve, network drive, or other measuring device) which processes information and sends its output to the master using Modbus. Acromag Series 900MB I/O Modules are slave devices, while a typical master device is a host computer running appropriate application software.

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