Procedure used to create the CE (global support) EPICS directory

Detailed Procedure to Create EPICS Displays using MEDM

13JUL98

P. Sichta

Revision 1.0 10SEP98 P. Sichta

Table of Contents

1.0 Introduction

2.0 References

3.0 Aliases, Environmental Variables, and Permissions

4.0 Creating Displays

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1.0 Introduction

This procedure provides a detailed description of how the use the Motif Editor and Display Manager (MEDM) to create and manage EPICS displays for NSTX. MEDM is one of several tools used in the EPICS community for working with displays.

2. 0 References

NSTX-WBS6-CA, General Procedure to Create Applications for EPICS
NSTX-WBS6-AD, Application Development Environment for CI&C.
MEDM Users Manual, K. Evans, EPICS www at ANL/APS

3. 0 Aliases, Environmental Variables, Paths, and Permissions

Aliases used :

medm "${EPICS_EXTENSIONS}/extensions/bin/${HOST_ARCH}/medm -displayFont scalable"

Environmental Variables : None

Paths : The Unix user’s search path must include : /epics/system/epics/epicsExtensions/bin/solaris

Permissions : Anyone can run MEDM but only Unix accounts in the group ‘staff’ have write permission in the online directories.

4. 0 Creating EPICS Displays

MEDM can be started from any directory :

/nstx : medm

EPICS display source files will be kept in the directory structure dedicated to each digraph, or application identifier. For example, if the digraph for a system is xx, then the display files for that system will be kept in

/nstx/epicapps/xxApp/op/display .

All MEDM display source files will have an .adl suffix.

A standard symbol library (e.g. a closed valve icon) will be kept in .adl files in the directory :

/nstx/epicapps/ceApp/op/display

Reference (1) contains NSTX display development guidelines, such as source control and color conventions for process variables (PV).

Reference (2) is the user’s guide for MEDM.