Experimental Physics and Industrial Control System
|
In
the SNS vacumm controls, we use stringout records for MKS937A and
Varian Dual Controller.
field(OUT, "@$(PORT) <$$(ADDR)RLY$(CH)=%s>")
%s=d.dE-dd
Xiaosong Geng
SNS Controls Group, BNL
Upton, NY 11973
I had a similar
problem with exponential inputs and read the value into a drvAsciii stringin
record linked to a soft analog input record. For the output problem (all
of the devices we have tried so far just ignore extra zeros) you could use a
soft analog output record linked to an sCalcout Record (String Calcout Record)
or a genSub Record to format the string, linked to a drvAscii stringOut
Record.
Rodney
Porter
Scientific Associate
- Data Acquisition
Intense Pulsed
Neutron Source Division
Argonne National
Laboratory
-----Original
Message----- From:
Lifang Zheng
[mailto:[email protected]] Sent: Thursday, July 10,
2003 3:04
AM To: EPICS tech-talk Subject: the command formats in
RS232
We are developing 100MeV LINAC vacuum control system
through RS232 serial. The hardware has a VIPC616 carrier and an IP-Octal-232. The software
includes drvSerial,drvAscii,drvIpac,drvVipc616, tyGSOctal and devAscii. The
first test was successfully with the help of Allan Honey and Steven Hartman a
few month ago.
But we have one problem. Some of the commands
use the format d.ddde-dd, but the OUT field of AO have to be specified as %e
instead of %9.3e or %.3e. So the value of AO will be sent as
d.ddd000e-dd which doesn't meet our requirement.
Does somebody meet the same problem? Is there any
solution?
Any suggestion is welcome,
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