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c1bbdb935e5b05ba9a10056db4bd08af38a35a1a
sicspsi/euro2kdriv.c
zolliker c1bbdb935e - modified and improved various env. drivers 
- implemented string array object
2006-06-20 13:29:32 +00:00

386 lines
10 KiB
C
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/*---------------------------------------------------------------------------
euro2kdriv.c
Driver for the EuroTherm 2000 controllers (ModBus protocol)
Markus Zolliker, August 2005
----------------------------------------------------------------------------*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <sys/time.h>
#include <math.h>
#include <tcl.h>
#include <fortify.h>
#include <sics.h>
#include <splitter.h>
#include <obpar.h>
#include <devexec.h>
#include <nserver.h>
#include <interrupt.h>
#include <emon.h>
#include <evcontroller.h>
#include <evcontroller.i>
#include <servlog.h>
#include <sicsvar.h>
#include <evdriver.i>
#include <rs232controller.h>
#include "modbus.h"
#include "fsm.h"
#include "initializer.h"
#define EURO2K_SET 1
#define EURO2K_MODE 2
typedef enum {read_only, settable, to_set} Euro2kAccess;
typedef struct Euro2kPar {
struct Euro2kPar *next;
char *name;
char *unit;
char *fmt;
int adr;
ModBusType type; /* 0: float, 1: int, 2: time */
Euro2kAccess set; /* 0: read-only; 1: settable; 2: to be set */
float par;
} Euro2kPar;
typedef struct {
EaseDriv d;
char *unit;
int mode, manual;
char *script;
int warned;
float temperature;
float output;
float setpoint;
Euro2kPar *pars, *readPar;
} Euro2k;
static ParClass euro2kClass = { "EURO2K", sizeof(Euro2k) };
/*----------------------------------------------------------------------------*/
static int Euro2kMakePar(void *object, void *userarg, int argc, char *argv[])
{
Euro2k *drv = ParCast(&euro2kClass, object);
Euro2kPar *par, **last;
int iarg;
assert(drv);
if (argc < 1) goto Usage;
last = &drv->pars;
for (par = drv->pars; par != NULL; par = par->next) {
if (strcasecmp(argv[0], par->name) == 0) {
break;
}
last = &par->next;
}
if (par == NULL) {
par = calloc(1, sizeof(Euro2kPar));
if (par == NULL) return 0;
*last = par;
par->unit = NULL;
par->fmt = NULL;
} else {
if (par->unit) {
free(par->unit); par->unit=NULL;
}
if (par->fmt) {
free(par->fmt); par->fmt=NULL;
}
}
par->name = strdup(argv[0]);
iarg = 1;
if (strcasecmp(argv[iarg],"w") == 0) { /* writeable */
par->set = settable;
iarg++;
} else {
par->set = read_only;
}
par->type = modBusFloat;
if (iarg>=argc) goto Usage;
if (strcasecmp(argv[iarg],"int") == 0) {
par->type = modBusInt; iarg++;
par->fmt = "%.0f";
} else if (strcasecmp(argv[iarg],"time") == 0) {
par->type = modBusTime; iarg++;
par->unit = "sec";
par->fmt = "%.4g";
} else {
par->type = modBusFloat;
}
if (iarg >= argc) goto Usage;
par->adr = atoi(argv[iarg]);
iarg++;
if (iarg < argc) {
if (argv[iarg] && argv[iarg][0]) {
par->unit = argv[iarg];
}
iarg++;
if (iarg < argc) {
if (argv[iarg] && argv[iarg][0]) {
par->fmt = argv[iarg];
}
iarg++;
if (iarg < argc) goto Usage;
}
}
if (par->unit) par->unit = strdup(par->unit);
if (par->fmt) par->fmt = strdup(par->fmt);
ParInitPar(object, par->name);
EaseParHasChanged();
return 1;
Usage:
ParPrintf(object, eError, "Usage: %s makepar <name> [w] [int|time] adr [unit] [fmt]"
, drv->d.b.p.name);
return 0;
}
/*----------------------------------------------------------------------------*/
void Euro2kParDef(void *object) {
Euro2k *drv = ParCast(&euro2kClass, object);
ParData *obj = object;
Euro2kPar *par, *next;
FILE *saveFile;
char *w, *t, *u, *f;
static char *modeList[]={"auto", "manual", NULL };
ParName(""); ParTail(drv->unit);
ParFloat(&drv->temperature, PAR_NAN);
ParName("unit"); ParAccess(usUser); ParLogAs(NULL);
ParStr(&drv->unit, "C");
ParName("mode"); ParEnum(modeList); ParList(0); EaseUpdate(EURO2K_MODE);
ParInt(&drv->mode, 1);
ParName("manual"); ParEnum(modeList);
ParInt(&drv->manual, 1);
ParName("output"); ParTail("%");
ParFloat(&drv->output, PAR_NAN);
ParName("set"); ParTail(drv->unit); EaseUpdate(EURO2K_SET);
ParFloat(&drv->setpoint, PAR_NAN);
ParName("task"); ParAccess(usUser); ParList(NULL); ParSave(1);
ParStr(&drv->script, "0");
saveFile = ParSaveFile();
for (par = drv->pars; par != NULL; par = par->next) {
if (par->adr > 0) {
if (saveFile) {
if (par->set) {
w="w ";
} else {
w="";
}
if (par->type == modBusInt) {
t = "int ";
} else if (par->type == modBusTime) {
t = "time ";
} else {
t = "";
}
if (par->unit) {
u = par->unit;
} else {
u = "";
}
if (par->fmt) {
f = par->fmt;
} else {
f = "";
}
fprintf(saveFile, " %s makepar %s %s%s%d \"%s\" \"%s\"\n", obj->name, par->name,
w, t, par->adr, u, f);
}
ParName(par->name);
if (par->unit) {
ParTail(par->unit);
} else {
ParList(NULL);
}
if (par->fmt) {
ParFmt(par->fmt);
}
if (par->set >= settable) {
if (EaseUpdate(EURO2K_SET)) {
par->set = to_set;
}
}
ParFloat(&par->par, PAR_NAN);
}
}
ParName("makepar"); ParAccess(usUser); ParCmd(Euro2kMakePar, NULL);
EaseBasePar(drv);
EaseDrivPar(drv, "%#.5g", drv->unit);
ParStdDef();
EaseMsgPar(drv);
if (ParActionIs(PAR_KILL)) {
next = drv->pars;
for (par = next; par != NULL; par = next) {
next= par->next;
if (par->name) {
free(par->name);
par->name = NULL;
}
if (par->unit) {
free(par->unit);
par->unit = NULL;
}
if (par->fmt) {
free(par->fmt);
par->fmt = NULL;
}
free(par);
}
drv->pars = NULL;
}
}
/*----------------------------------------------------------------------------*/
static long Euro2kRead(long pc, void *object) {
Euro2k *drv = ParCast(&euro2kClass, object);
EaseBase *eab = object;
Euro2kPar *par;
Tcl_Interp *pTcl = NULL;
char *p;
int l, m, iRet;
float dif;
char buf[4];
switch (pc) { default: /* FSM BEGIN *******************************/
if (drv->script && drv->script[0] != '\0' && 0 != strcmp(drv->script, "0")) {
pTcl = InterpGetTcl(pServ->pSics);
iRet = Tcl_Eval(pTcl,drv->script);
if (iRet == TCL_OK) {
if (drv->warned > 0) drv->warned--;
} else if (drv->warned<3) {
drv->warned++;
ParPrintf(drv, eError, "ERROR: %s in %s.task '%s'", pTcl->result, eab->p.name, drv->script);
}
}
ModBusRequestValue(eab, 273); /* get manual or auto */
return __LINE__; case __LINE__: /**********************************/
m = ModBusGetValue(eab, modBusInt);
if (m != drv->manual) { /* mode changed manually */
drv->mode = m;
}
drv->manual= m;
ModBusRequestFloats(eab, 1, 3);
return __LINE__; case __LINE__: /**********************************/
drv->temperature = ModBusGetFloat(eab, 1);
if (!EaseGetUpdate(drv, EURO2K_SET)) {
drv->setpoint = ModBusGetFloat(eab, 2);
}
drv->output = ModBusGetFloat(eab, 3);
par = drv->pars;
loop:
if (par == NULL) goto finish;
if (par->adr == 0 || par->set == to_set) goto skipPar;
ModBusRequestValue(eab, par->adr);
drv->readPar = par;
return __LINE__; case __LINE__: /**********************************/
par = drv->readPar;
if (par->set != to_set) {
par->par = ModBusGetValue(eab, par->type);
}
skipPar:
par = par->next;
goto loop;
finish:
if (eab->p.verbose >= 3) {
eab->p.verbose--;
if (eab->p.verbose < 3) eab->p.verbose=0;
}
ParLog(drv);
fsm_quit: return 0; } /* FSM END *********************************/
}
/*----------------------------------------------------------------------------*/
static long Euro2kSet(long pc, void *object) {
Euro2k *drv = ParCast(&euro2kClass, object);
EaseBase *eab = object;
Euro2kPar *par;
char *p;
int l;
int upd;
char buf[4];
switch (pc) { default: /* FSM BEGIN *******************************/
loop:
upd = EaseNextUpdate(drv);
if (upd == EASE_RUN) {
drv->setpoint = drv->d.targetValue;
goto run;
}
if (upd == EURO2K_MODE) goto mode;
if (upd == EURO2K_SET) goto run;
for (par = drv->pars; par != NULL; par = par->next) {
if (par->set == to_set) {
ModBusPutValue(eab, par->adr, par->type, par->par);
par->set = settable;
goto setIt;
}
}
goto fsm_quit;
run:
ModBusPutFloats(eab, 2, 1, &drv->setpoint);
return __LINE__; case __LINE__: /**********************************/
if (drv->mode == 0) goto loop;
drv->mode = 0;
mode:
drv->manual = drv->mode;
ModBusPutValue(eab, 273, 1, drv->manual); /* set manual to 0 */
setIt:
return __LINE__; case __LINE__: /**********************************/
goto loop;
fsm_quit: return 0; } /* FSM END *********************************/
}
/*----------------------------------------------------------------------------*/
static long Euro2kStart(long pc, void *object) {
Euro2k *drv = ParCast(&euro2kClass, object);
EaseBase *eab = object;
switch (pc) { default: /* FSM BEGIN *******************************/
ModBusRequestValue(eab, 1);
return __LINE__; case __LINE__: /**********************************/
if (0 == ModBusGetValue(eab, modBusFloat)) {
ParPrintf(drv, eError, "bad or no response on ModBus");
goto quit;
}
ParPrintf(drv, eStatus, "connected to euro2k");
FsmCall(Euro2kRead);
return __LINE__; case __LINE__: /**********************************/
quit:
return 0; } /* FSM END ********************************************/
}
/*----------------------------------------------------------------------------*/
static int Euro2kInit(SConnection *con, int argc, char *argv[], int dynamic) {
/* args:
MakeObject objectname euro2k <rs232>
<host> <port>
*/
Euro2k *drv;
drv = EaseMakeDriv(con, &euro2kClass, argc, argv, dynamic, 7,
Euro2kParDef, ModBusHandler, Euro2kStart, NULL, Euro2kRead,
Euro2kSet);
if (drv == NULL) return 0;
drv->pars = NULL;
setRS232ReplyTerminator(drv->d.b.ser,"");
setRS232SendTerminator(drv->d.b.ser,"");
ParPrintf(drv, eValue, "Eurotherm 2xxx");
return 1;
}
/*----------------------------------------------------------------------------*/
void Euro2kStartup(void) {
ParMakeClass(&euro2kClass, EaseDrivClass());
MakeDriver("EURO2K", Euro2kInit, 0);
}
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