Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Thu, 17 Nov 2005 15:06:35 -0600

Benjamin Franksen wrote:

On the IOC (example app) this gives me:

epics> franksenHost:aiExample.TIME dbNameToAddr failed
franksenHost:aiExample.TIME dbNameToAddr failed
franksenHost:aiExample.TIME dbNameToAddr failed
franksenHost:aiExample.TIME dbNameToAddr failed
franksenHost:aiExample.TIME dbNameToAddr failed

dbCommon.dbd defines
        field(TIME,DBF_NOACCESS) {
                prompt("Time")
                special(SPC_NOMOD)
                interest(4)
                extra("epicsTimeStamp   time")
        }

Thus the TIME field is not directly accessible outside the record/device

support code; you can only read timestamps using the appropriate DBR_

request types on the VAL field of a record. This is because a timestamp

is not one of the fundamental value types that CA V3 supports.

- Andrew
--
* * Matt Santos / / Leo McGarry * * For a Brighter America * *

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System