EPICS exampleJava/powerSupply

2016.08.26

Abstract

powerSupply is an example of creating a service that requires a somewhat complicated top level PVStructure. Look at the code for details.

Table of Contents

Overview

This is an example of creating a service that requires a somewhat complicated top level PVStructure.

The example has a top level pvStructure: 

structure
    alarm_t alarm
    time_t timeStamp
    structure power
        double value
    structure voltage
        double value
    structure current
        double value

It is designed to be accessed via a channelPutGet request. The client sets power.value and voltage.value When the record processes it computes current.value. In addition the timeStamp is set to the time when process is called.

Start Example

All of the following are run in the powerSupply directory. The examples are for linux. For windows a .bat file is also provided.

Start Server
scripts/powerSupplyMain
Start monitor
scripts/powerSupplyMonitor
Start client on linux
scripts/powerSupplyClient

NOTE: The client ends by requesting a voltage of 0. This results in the power supply record thowing an exception. This results in problems including the powerSupplyMonitor no longer updating. Needs investigation.