EPICS was first developed in the early 1980's using the VMS operating system from the Digital Equipment Corporation. Currently, the overwhelming majority of users use unix and Microsoft's Windows. However, some of the old VMS support is still available from the EPICS community. This support should be completed in the spring of 2003.
Text file NSTXEPICS.TXT
This is a text file (a typical file is shown below) that updates every 30 seconds. The direction is one way, from the Engineering network to the Physics network. The file can be accessed from the VMS cluster at NSTX0:[NSTX_TEMP.ENGINEERING_SHR_TEMP]NSTXEPICS.TXT .
File Format: Each line begins with the EPICS record name for the Process Variable (PV) being measured; the remainder of the line contains the value, which can include 'whitespace'. The first line of the file has the timestamp that shows when the values were measured.
example text file:KEES$ TYPE NSTX0:[NSTX_TEMP.ENGINEERING_SHR_TEMP]NSTXEPICS.TXT CK_DATETIME_SI 01/23/03 10:28:50 VM_PLC31_AV242LSO_BI OPEN VM_PLC31_AV242LSO_BI.NSTA NO_ALARM VM_PLC31_IG205_CALC 1.5776112697E-07 VM_PLC31_MION_BI ON VM_PLC31_LDGCSTK_BI CENSTK VM_PLC31_INJ2_BAY_BI BAY J LOWER VM_INJ1GAS_SI D2 VM_INJ2GAS_SI HE VM_INJ3GAS_SI D2 VM_INJ4GAS_SI D2 VM_PLC31_INJ4RDYPERM_BI READY PC_GNDSWALLCLSMON_CALC 0 KEES$ |
Page edited 27JAN2005 by Paul Sichta [psichta@pppl.gov]