Experimental Physics and
Industrial Control System

"Johnson, Andrew N." <[email protected]> · Sun, 2 Nov 2014 19:26:32 +0000

Hi David,

To save time and Benjamin who maintains it from having to ask, which version of the sequencer are you using, and what is your target architecture?

- Andrew

-- 
Sent from my iPad

> On Nov 2, 2014, at 13:21, Brown, David L. <[email protected]> wrote:
> 
> Hi, all,
> 
> I am attempting to dynamically populate arrays in a Sequencer using EPICS version R3.14.11.  In order to get around a 40 char limit on PVs, I'm using a database to serve alias PVs with shorter names.  All of the PVs in this one array (defined as a double [7] ) are bi records with bi record inputs.  When I get to the array element #4, the console reads:
> 
> "seq_pvMonitor: pvVarMonitorOn() PV_Name
>     failure: The data type specified is invalid
> Segmentation fault (core dumped)"
> 
> Any ideas as to why this might happen with this one bi record (I'm suspecting that the next one in line does it as well) and not with the other 4 before it?
> 
> My code looks sort of like this:
> 
> Program Thing
> 
> #define something
> char var[32];
> char var1[32];
> char var2[32];
> char var3[32];
> char var4[32];
> char sysid[32];
> char sysidn[40];
> char preamble1[40];
> char preamble2[40];
> char preamble3[40];
> char blah[40];
> string n;
> 
> 
> double Array [7];
> assign Array "";
> monitor Array;
> 
> ss State_Machine
> {
> State Start
> {
> entry
> {
> strcpy(var,macValueGet("S"));
> strcpy(var1,macValueGet("SS"));
> strcpy(var,macValueGet("N"));
> strcpy(var,macValueGet("I"));
> strcpy(preamble1,var);
> strcat(preamble1,var1);
> strcat(preamble1,":WS");
> strcat(preamble1,"n");
> strcat(preamble1,":");
> strcat(preamble1,var4);
> strcpy(preamble2,var);
> strcat(preamble2,var1);
> strcat(preamble2,":FC");
> strcat(preamble2,"n");
> strcat(preamble2,"_out:");
> strcat(preamble2,var4);
> strcpy(preamble3,var);
> strcat(preamble3,var1);
> strcat(preamble3,":FC");
> strcat(preamble3,"n");
> strcat(preamble3,"_ok:");
> strcat(preamble3,var4);
> }
> when()
> {
> if( strcmp(var, "DTL_")==0)
> {
> sprintf(blah, "%s_input\n", preamble1);
> pvAssign(Array[0],blah);
> sprintf(blah, "%s_raw\n", preamble1);
> pvAssign(Array[1],blah);
> sprintf(blah, "%s_input\n", preamble2);
> pvAssign(Array[2],blah);
> sprintf(blah, "%s_raw\n", preamble2);
> pvAssign(Array[3],blah);
> sprintf(blah, "%s_input\n", preamble3);
> pvAssign(Array[4],blah);
> sprintf(blah, "%s_raw\n", preamble3);
> pvAssign(Array[5],blah);
> sprintf(blah, "HardCodedPV\n");
> pvAssign(Array[6],blah);
> }
> }
> } state Next
> }
> 
> David Brown
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System