WESTLOCK CONTROLS CORPORATION
280 MIDLAND AVENUE, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
5/05/12 TECH-461/D.W.O. 19909 Page 10 of 24
1.7.5 Wireless Handheld (WH)
The Wireless Handheld (WH) is a hand-held device that enables the field operator to
communicate with a selected field device (WD/WR/WG) using low frequency channel (LF)
and ZigBee. Such one-on-one communication provides the field operator a transportable and
effective control panel for independently perform various operation and maintenance tasks. The
WH delivers messages to operators, reports on performance and is used to support installations,
configuration and diagnostics.
1.7.6 Wireless Management System (WMS)
The Wireless Management System (WMS) is a software application that processes collected
data from WGs, monitors it, and delivers it to various typical clients at the process control
management system. Such clients may be in various levels of the process control from the high
level HMI and down to the line controllers (PLCs). The Wireless Management System supports
such typical clients and data/indication and uses generic interface converters to provide the
required interface accordingly.
Figure 1: Westlock Wireless Valve Monitoring System – Block Diagram
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