Field transmitter for storing information

Details Field transmitter for storing information Field transmitter for storing information

1996-03-19

1998-05-19

Coles, Sr., Edward L.

Pulse or digital communications

Transmitters

375377, 34082506, 34082507, 364130, H04L 2704, H04Q 300

Patent

active

057545960

ABSTRACT:
A transmitter in a process control loop includes a sensor for sensing a process variable. An analog-to-digital converter coupled to the sensor provides a digitized process variable at various sample times. An interface couples the transmitter to the control loop and is used for communicating information and receiving power over the control loop. The transmitter includes a clock and a memory. A microprocessor coupled to the clock and the memory stores digitized process variables and clock information in the memory. The storage is such that the sample time of a stored digitized process variable can be determined.

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