Method of reprogramming memories in field devices over a multidrop network
First Claim
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1. A method of downloading application information from a host device to a field device over a network providing communication and power to said field device, the method comprising the steps of:
- a) the host device transmitting a command to the field device via said network that a download is about to begin;
b) said field device operated to place itself in a state to receive the downloaded information, in response to said command; and
c) preparing an included memory for reprogramming, including the step of;
halting operation of field device components not critical to the download operation whereby said field device components draw a minimum of power.
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Abstract
The method of downloading application information from a host device to a field device over a network providing communication and power to the field device, the method including the steps of stopping the normal data processing of a connected control device, halting operation of device components not critical to the download operation, reducing the operating frequency of a microprocessor included in the field device and transmitting a new device application over the network.
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8 Claims
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1. A method of downloading application information from a host device to a field device over a network providing communication and power to said field device, the method comprising the steps of:
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a) the host device transmitting a command to the field device via said network that a download is about to begin; b) said field device operated to place itself in a state to receive the downloaded information, in response to said command; and c) preparing an included memory for reprogramming, including the step of; halting operation of field device components not critical to the download operation whereby said field device components draw a minimum of power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification