Experimental Physics and
Industrial Control System

Maren Purves <[email protected]> · Mon, 24 Nov 2014 13:33:13 -1000

On 11/24/14 13:28, Eric Norum wrote:

How about using an scalcout record to format the number using  %.6f and
then a protocol entry with %5c  ?

Or a gensub or asub to generate the whole string?

On Nov 24, 2014, at 2:54 PM, Mark Rivers <[email protected]
<mailto:[email protected]>> wrote:

Dirk and all,
I have a device that requires a command of the following format:
ratei NNNNN ml/h
where NNNNN is a number that is exactly 5 characters long including
the decimal point.  For example if the rate is 9 then:
ratei 9.000 ml/h
If the rate is 10 then the string must be
ratei 10.00 ml/h
If one sends 10.000 (six characters) the command is rejected.
Is there a way to achieve this with streamDevice?
I can’t use the field width flag, since that just sets a minimum field
width. I need to set a maximum field width.
I realize this is a ridiculous behavior for a device, but I need to
deal with it.
Thanks,
Mark

Maren

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System