RE: SEQ with dynamic assignment of PV in array variable

[Emmanuel Mayssat <emayssat@outlook.com>]

I upgraded to the latest version of seq (2-1-12) from (2-0-12) thinking that the version I use could be out of date

Turns out, seqLog is not part of the libseq.so library anymore.... 

is seqLog obsolete?

Mark, interesting example... I was also investigating the state waitConnected ;-)

> From: rivers@cars.uchicago.edu
> To: emayssat@outlook.com; ahoney@keck.hawaii.edu; tech-talk@aps.anl.gov
> Subject: RE: SEQ with dynamic assignment of PV in array variable
> Date: Mon, 3 Jun 2013 21:33:35 +0000
>
> Hi Emmanuel,
>
> I am doing basically what you are doing in my SNL programs, and it is working fine. Here is an example with some unrelated lines removed.
>
> ***************************************************************************
> /* Maximum number of detectors supported */
> #define MAX_SIGNALS 32
>
> int i;
> int n;
> int numSignals;
> char temp[100];
>
> char *prefix;
> char *record;
> char *field;
>
> int ReadArray[MAX_SIGNALS];
> assign ReadArray to
> {"","","","","","","","","","","","","","","","",
> "","","","","","","","","","","","","","","",""};
> int ReadArrays; assign ReadArrays to "{P}DoReadAll";
> monitor ReadArrays; evflag ReadArraysMon; sync ReadArrays ReadArraysMon;
>
> int SNL_Connected; assign SNL_Connected to "{P}SNL_Connected";
>
> int Acquiring; assign Acquiring to "{P}Acquiring";
>
> ss mca_control {
> state init {
> when() {
> prefix = macValueGet("P");
> record = macValueGet("R");
> field = macValueGet("FIELD");
> numSignals = atoi(macValueGet("NUM_SIGNALS"));
> if ((numSignals <= 0) || (numSignals > MAX_SIGNALS)) {
> printf ("NUM_SIGNALS is illegal.\n");
> numSignals = 0;
> }
> for (i=0; i<numSignals; i++) {
> n = i+1;
> sprintf(temp, "%s%s%d.%s", prefix, record, n, field);
> pvAssign(ReadArray[i], temp);
> }
> } state waitConnected
> }
>
> state waitConnected {
> when (pvAssignCount () == pvConnectCount ()) {
> printf ("SIS: All channels connected.\n");
> SNL_Connected = 1;
> pvPut(SNL_Connected);
> } state monitor_changes
> }
> ***************************************************************************
>
> Cheers,
> Mark
>
> ________________________________
> From: tech-talk-bounces@aps.anl.gov [tech-talk-bounces@aps.anl.gov] on behalf of Emmanuel Mayssat [emayssat@outlook.com]
> Sent: Monday, June 03, 2013 2:38 PM
> To: Al Honey; tech-talk@aps.anl.gov
> Subject: RE: SEQ with dynamic assignment of PV in array variable
>
> My solution compiled, didn't segment fault, but also does not work !!!
>
> Thank you Al for your suggestion.
> I assume you are passing tel, sys, and d0/1/2/3 as parameters to your seq program.
> In my case, I would like to use a static array (~parameters are hard-coded in program)
> as I have 'too' many of them (~ 50 parameters)
>
> Now I expect around 20 arrays, each with 50 assign statements
> That's why I am looking at a for loop with pvAssign
> So far pvAssign doesn't work on my side..
>
> Anyone else?
>
> ________________________________
> From: ahoney@keck.hawaii.edu
> To: emayssat@outlook.com
> Subject: RE: SEQ with dynamic assignment of PV in array variable
> Date: Mon, 3 Jun 2013 18:30:03 +0000
>
>
> Hi Emmanuel
>
>
>
> We do the following at Keck:
>
>
>
> float openLoop[4];
>
> assign openLoop[0] to "{tel}{sys}{d0}openLoop";
>
> assign openLoop[1] to "{tel}{sys}{d1}openLoop";
>
> assign openLoop[2] to "{tel}{sys}{d2}openLoop";
>
> assign openLoop[3] to "{tel}{sys}{d3}openLoop";
>
> monitor openLoop;
>
>
>
> Al
>
>
>
>
>
> From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of Emmanuel Mayssat
> Sent: Monday, June 03, 2013 7:29 AM
> To: tech-talk@aps.anl.gov
> Subject: SEQ with dynamic assignment of PV in array variable
>
>
>
> Hello,
>
>
>
> I am working on a seq program.
>
> For that program, I am interacting with magnet power supplies.
>
> The interfaces to the power supplies are all the same (about 10 PV each).
>
>
>
> For each interface PV, I would like do to something like this...
>
>
>
> #define NB_OF_SUPPLIES 50
>
> short enable[NB_OF_SUPPLIES];
>
> assign enable[0] to "I:S001:PS:EnableBO";
>
> assign enable[1] to "I:SO10:PS:EnableBO";
>
> ...
>
> monitor enable;
>
>
>
> but programmatically.
>
>
>
> I looked at the docs and they are somewhat confusing.
>
>
>
> Q: Is there a place to put the pvAssign statement?
>
> Q: Should the array's cell be initialized/assigned to "" during declaration?
>
> Q: Can I monitor a not-yet configured PV array?
>
> Q: How can I find out about the connection to each of the PVs?
>
> etc.
>
>
>
> If anyone has an example of using pvAssign on array variables (i.e. enable), I would appreciate it.
>
>
>
> Regards,
>
> --
>
> Emmanuel
>
>
>
>
>
>
>