Experimental Physics and
Industrial Control System

Dehong Zhang <[email protected]> · Tue, 30 Dec 2008 10:36:34 -0600

Hi Everybody, Happy New Year!

Recently we upgraded to 3.14.10 (on vxWorks 6.1).  We are trying to use the time
from the local vxWorks system, instead of the EPICS time/boot server.  So we do
NTPTime_Shutdown
immediately before iocInit.

On the vxWorks console, we can see that the NTP thread is indeed off:

generalTimeReport 1
Backwards time errors prevented 0 times.

Current Time Providers:
    "NTP", priority = 100
        Current Time not available
    "OS Clock", priority = 999
        Current Time is 2008-12-30 10:31:48.890000.

Event Time Providers:
        No Providers registered.
value = 0 = 0x0

Please note: the OS Clock does show the correct local time (US CST).

But on a host machine, if we start a monitor process like "camonitor ..."
we always get the time off by 6 hours.  It seems EPICS takes the CST time
as the GMT time, then convert it back to CST.

We tried both
putenv("TIMEZONE=...
putenv("EPICS_TIMEZONE= 

They did not help.

Please advice.

Thanks much and best regards,
Dehong

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System