442 lines
9.2 KiB
C
442 lines
9.2 KiB
C
/*--------------------------------------------------------------------------
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D I L U T I L
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A few utility functions for dealing with a Dillution emperature controller
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CC0-510/AVSI
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within the SINQ setup: host -- TCP/IP -- MAC --- RS-232.
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Mark Koennecke, October 1997
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Copyright: see copyrigh.h
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---------------------------------------------------------------------------- */
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include "serialsinq.h"
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#include "dillutil.h"
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#ifdef FORTIFY
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#include "fortify.h"
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#endif
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/*
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#define debug 1
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*/
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/*-------------------------------------------------------------------------*/
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int DILLU_Open(pDILLU * pData, char *pHost, int iPort, int iChannel,
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int iMode, char *pTransFile)
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{
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int iRet;
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char pCommand[80];
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char pReply[132];
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pDILLU self = NULL;
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pSTable pTable = NULL;
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FILE *fd = NULL;
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/* check translation file first */
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fd = fopen(pTransFile, "r");
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if (!fd) {
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return DILLU__FILENOTFOUND;
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}
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fgets(pReply, 131, fd);
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if (strstr(pReply, "DILLUTION") == NULL) {
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fclose(fd);
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return DILLU__NODILLFILE;
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}
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pTable = CreateTable(fd);
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fclose(fd);
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if (!pTable) {
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return DILLU__ERRORTABLE;
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}
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/* allocate a new data structure */
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self = (pDILLU) malloc(sizeof(DILLU));
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if (self == NULL) {
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return DILLU__BADMALLOC;
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}
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*pData = self;
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self->pTranstable = pTable;
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iRet = SerialOpen(&self->pData, pHost, iPort, iChannel);
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if (iRet != 1) {
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return iRet;
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}
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/* set an lengthy timeout for the configuration in order to
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prevent problems.
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*/
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iRet = SerialConfig(&self->pData, 100);
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if (iRet != 1) {
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return iRet;
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}
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self->iReadOnly = iMode;
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if (!self->iReadOnly) {
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/* switch to remote operation */
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/* iRet = SerialWriteRead(&self->pData,"C1\r\n",pReply,131);
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if(iRet != 1)
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{
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return iRet;
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}
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*/
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}
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return 1;
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}
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/* --------------------------------------------------------------------------*/
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void DILLU_Close(pDILLU * pData)
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{
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char pReply[132];
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int iRet;
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pDILLU self;
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self = *pData;
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if (!self)
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return;
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/* switch to local operation */
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iRet = SerialWriteRead(&self->pData, "C0\r\n", pReply, 131);
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/* ignore errors on this one, the thing may be down */
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/* close connection */
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SerialClose(&self->pData);
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/* free memory */
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free(self);
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*pData = NULL;
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}
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/* --------------------------------------------------------------------------*/
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int DILLU_Config(pDILLU * pData, int iTmo)
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{
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int iRet;
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char pReply[132];
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char pCommand[10];
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pDILLU self;
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self = *pData;
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/* first timeout */
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if (iTmo > 0) {
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iRet = SerialConfig(&self->pData, iTmo);
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if (iRet < 0) {
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return iRet;
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}
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}
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return 1;
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}
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/* --------------------------------------------------------------------------*/
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int DILLU_Send(pDILLU * pData, char *pCommand, char *pReply, int iLen)
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{
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pDILLU self;
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self = *pData;
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/* make sure, that there is a \r at the end of the command */
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if (strchr(pCommand, (int) '\r') == NULL) {
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strcat(pCommand, "\r\n");
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}
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return SerialWriteRead(&self->pData, pCommand, pReply, iLen);
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}
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/* --------------------------------------------------------------------------*/
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int DILLU_Read(pDILLU * pData, float *fVal)
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{
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char pCommand[10], pReply[132];
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int iRet;
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float fRead = -9999.;
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float fOhm;
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pDILLU self;
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self = *pData;
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/* send D command */
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sprintf(pCommand, "D\r\n");
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* read ohms */
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iRet = sscanf(pReply, "%f", &fOhm);
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if (iRet != 1) {
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return DILLU__BADREAD;
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}
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if (fOhm > 9999890.) {
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return DILLU__SILLYANSWER;
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}
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/* convert to K */
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iRet = InterpolateVal2(self->pTranstable, fOhm, &fRead);
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*fVal = fRead;
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return 1;
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}
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/*-------------------------------------------------------------------------*/
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int DILLU_Set(pDILLU * pData, float fVal)
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{
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char pCommand[50], pReply[132];
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int iRet, i, iRange, iExec;
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const float fPrecision = 0.0001;
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float fSet, fRead, fOhms, tmax, fTemp;
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pDILLU self;
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self = *pData;
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if (self->iReadOnly) {
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return DILLU__READONLY;
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}
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/* send D command to read current value */
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sprintf(pCommand, "D\r\n");
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* read ohms */
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iRet = sscanf(pReply, "%f", &fRead);
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if (iRet != 1) {
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return DILLU__BADREAD;
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}
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if (fRead > 9999890.) {
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return DILLU__SILLYANSWER;
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}
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/* convert new set value to ohms */
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iRet = InterpolateVal1(self->pTranstable, fVal, &fOhms);
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if (!iRet) {
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return DILLU__OUTOFRANGE;
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}
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/* set to remote operation */
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#ifdef debug
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printf("C1\n");
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#endif
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iRet = SerialWriteRead(&self->pData, "C1\r\n", pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* set heater power */
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strcpy(pCommand, "G3\r");
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if (fOhms > 1125) {
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strcpy(pCommand, "G2\r");
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}
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if (fOhms > 4000)
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strcpy(pCommand, "G1\r");
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#ifdef debug
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printf("A9\n");
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#endif
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iRet = SerialWriteRead(&self->pData, "A9\r", pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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#ifdef debug
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printf("%s\n", pCommand);
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#endif
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* Integrator time constant */
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strcpy(pCommand, "G2\r");
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if (fOhms > 200)
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strcpy(pCommand, "G1\r");
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if (fOhms > 2000)
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strcpy(pCommand, "G0\r");
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strcpy(pCommand, "G7\r");
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if (fOhms > 400.) {
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strcpy(pCommand, "G6\r");
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}
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#ifdef debug
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printf("A4\n");
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#endif
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iRet = SerialWriteRead(&self->pData, "A4\r", pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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#ifdef debug
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printf("%s\n", pCommand);
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#endif
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* derivator time constant */
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if (fOhms > 1000.) {
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strcpy(pCommand, "G1\r");
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} else {
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strcpy(pCommand, "G2\r");
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}
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#ifdef debug
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printf("A5\n");
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#endif
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iRet = SerialWriteRead(&self->pData, "A5\r", pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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#ifdef debug
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printf("%s\n", pCommand);
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iRet = 1;
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#endif
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* proportional gain */
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if (fOhms > 500.) {
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strcpy(pCommand, "G3\r");
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}
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if (fOhms > 1000) {
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strcpy(pCommand, "G2\r");
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}
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if (fOhms > 2000) {
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strcpy(pCommand, "G1\r");
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}
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#ifdef debug
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printf("A6\n");
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#endif
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iRet = SerialWriteRead(&self->pData, "A6\r", pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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#ifdef debug
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printf("%s\n", pCommand);
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#endif
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* range calculation a la Elsenhans */
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iRange = 1;
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fTemp = fOhms * 10000.;
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if ((fRead > 1.9) || (fOhms > 1.9)) {
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iRange = 2;
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fTemp = fOhms * 1000.;
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}
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if ((fRead > 19) || (fOhms > 19)) {
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iRange = 3;
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fTemp = fOhms * 100.;
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}
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if ((fRead > 190) || (fOhms > 190)) {
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iRange = 4;
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fTemp = fOhms * 10.;
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}
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if ((fRead > 750) || (fOhms > 750)) {
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iRange = 5;
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fTemp = fOhms;
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}
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if ((fRead > 19000) || (fOhms > 19000)) {
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iRange = 6;
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fTemp = fOhms / 10.;
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}
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if ((fRead > 190000) || (fOhms > 190000)) {
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iRange = 7;
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fTemp = fOhms / 100.;
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}
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sprintf(pCommand, "R%1.1d\r", iRange);
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#ifdef debug
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printf("%s\n", pCommand);
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#endif
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* finally set temperature */
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#ifdef debug
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printf("Set Val befor hex: %d\n", (int) fTemp);
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#endif
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sprintf(pCommand, "G%4.4X\r", (int) fTemp);
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#ifdef debug
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printf("A3\n");
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#endif
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iRet = SerialWriteRead(&self->pData, "A3\r", pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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#ifdef debug
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printf("%s\n", pCommand);
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#endif
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iRet = SerialWriteRead(&self->pData, pCommand, pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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/* unset remote operation, so that users may mess everything up
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from the panel
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*/
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#ifdef debug
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printf("C1\n");
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#endif
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iRet = SerialWriteRead(&self->pData, "C0\r\n", pReply, 131);
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if (iRet != 1) {
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return iRet;
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}
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return 1;
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}
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/*-------------------------------------------------------------------------*/
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void DILLU_Error2Text(pDILLU * pData, int iCode, char *pError, int iLen)
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{
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char pBueffel[512];
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pDILLU self;
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self = *pData;
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switch (iCode) {
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case DILLU__FILENOTFOUND:
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strncpy(pError, "Translation Table file not found", iLen);
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return;
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break;
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case DILLU__NODILLFILE:
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strncpy(pError, "Translation Table file is not DILLU", iLen);
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return;
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break;
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case DILLU__ERRORTABLE:
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strncpy(pError, "Translation Table could not be created", iLen);
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return;
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break;
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case DILLU__BADREAD:
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strncpy(pError, "Message corrupted", iLen);
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return;
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break;
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case DILLU__SILLYANSWER:
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strncpy(pError, "Message corrupted", iLen);
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return;
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break;
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case DILLU__BADMALLOC:
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strncpy(pError, "Out of memory in Open_DILLU", iLen);
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return;
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break;
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case DILLU__READONLY:
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strncpy(pError, "DILLU is read-only", iLen);
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return;
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break;
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case DILLU__OUTOFRANGE:
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strncpy(pError, "Requested value is out of range", iLen);
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return;
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break;
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default:
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SerialError(iCode, pError, iLen);
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break;
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}
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}
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