diff --git a/tecs/Makefile b/tecs/Makefile
index d336234a..c6472031 100644
--- a/tecs/Makefile
+++ b/tecs/Makefile
@@ -9,7 +9,7 @@ OBJ=   tecc.o client.o coc.o buf.o errhdl.o util.o \
 
 #------------ for DigitalUnix
 CC=cc
-CFLAGS= -std1 -g -c -I.
+CFLAGS= -std1 -g -c -warnprotos -I.
 
 .c.o:
 	$(CC) $(CFLAGS) $*.c
diff --git a/tecs/buf.c b/tecs/buf.c
index 664268d2..d2af5c75 100644
--- a/tecs/buf.c
+++ b/tecs/buf.c
@@ -7,21 +7,43 @@
 #define TWO28 268435456.0
 #define MAXINT 2147483647
 
-/* static char *null="\0"; */
+int buf_encode_int(char b[4]) {
+  int i;
+  i=(unsigned char)b[0];
+  if (i>=128) i=i-256;
+  i=i*256+(unsigned char)b[1];
+  i=i*256+(unsigned char)b[2];
+  i=i*256+(unsigned char)b[3];
+  return(i);
+}
+
+void buf_decode_int(char b[4], int i) {
+  if (i<0) {
+    i+=0x10000000;
+    b[0]=i/0x01000000+128;
+    i=i % 0x01000000;
+  } else {
+    b[0]=i/0x01000000;
+    i=i % 0x01000000;
+  }
+  b[1]=i/0x10000; i=i % 0x10000;
+  b[2]=i/0x100;
+  b[3]=i % 0x100;
+}
 
 int buf_get_int(buf_type *buf)
 { char *b;
-  int *res;
+  int res;
 
   b=buf->buf;
   if (b==NULL) return(0);
   if (b[0]!=1 || buf->size<5) {buf->buf=NULL; return(0); }
   b++;
-  res=(int *)b;
+  res=buf_encode_int(b);
   b+=4;
   buf->size-=5;
   buf->buf=b;
-  return(*res);
+  return(res);
 }
 
 char *buf_get_str(buf_type *buf)
@@ -41,17 +63,17 @@ char *buf_get_str(buf_type *buf)
 float buf_get_float(buf_type *buf)
 { char *b;
   float res;
-  int *mant, iexp;
+  int mant, iexp;
 
   b=buf->buf;
   if (b==NULL) return(0.0);
   if (b[0]!=2 || buf->size<6) { buf->buf=NULL; return(0.0); }
   iexp=b[1];
   b+=2;
-  mant=(int *)b;
+  mant=buf_encode_int(b);
   b+=4;
   buf->size-=6;
-  res=(float)ldexp(*mant/TWO28, iexp);
+  res=(float)ldexp(mant/TWO28, iexp);
   buf->buf=b;
   return res;
 }
@@ -69,8 +91,8 @@ void buf_put_int(buf_type *buf, int val)
   if (b==NULL) return;
   b[0]=1;
   b++;
-  if (buf->size<=4) {buf->buf=NULL; return; }
-  *(int *)b=val;
+  if (buf->size<=4) { buf->buf=NULL; return; }
+  buf_decode_int(b, val);
   b+=4;
   buf->size-=5;
   buf->buf=b;
@@ -125,7 +147,7 @@ void buf_put_float(buf_type *buf, float val)
   b[0]=2;
   b[1]=iexp;
   b+=2;
-  *(int *)b=mant;
+  buf_decode_int(b, mant);
   b+=4;
   buf->size-=6;
   buf->buf=b;
diff --git a/tecs/logfile.c b/tecs/logfile.c
index b99e5f13..6057766e 100644
--- a/tecs/logfile.c
+++ b/tecs/logfile.c
@@ -20,6 +20,8 @@ static char ebuf[20000]="";
 static char *eptr=&ebuf[0];
 static int lastStamp=0;
 static int notDated=0;
+static int logMask=0;
+static int wrtMask=0;
 
 int ftime (struct timeb *__timeptr); /* for some reason not defined in timeb.h with flag -std1 */
 
@@ -30,7 +32,6 @@ void logfileOpen(int first) {
   struct tm *tim;
   struct timeb btim;
 
-  dirty=1;
   if (logfileStd) {
     fil=stdout;
     return;
@@ -72,8 +73,35 @@ void logfileInit(char *path, int nodate) {
   logfileOpen(1);
 }
 
-void logfileStamp(char *text)
-{ struct tm *tim;
+void logfileOut(int mask, const char *fmt, ...)
+{ va_list ap;
+
+  assert(mask>0 && mask<32);
+  va_start(ap, fmt);
+  if (eptr!=NULL) {
+    if (eptr-ebuf > sizeof(ebuf)-512) {
+      sprintf(eptr, "... buffer full ... \1\1");
+      eptr=NULL;
+    } else {
+      vsprintf(eptr, fmt, ap);
+      assert(NULL==strchr(eptr, '\1'));
+      eptr+=strlen(eptr);
+      eptr[0]='\1'; /* put \1 as separator between blocks */
+      eptr[1]=mask;
+      eptr[2]='\0';
+      eptr+=2;
+    }
+  }
+  va_end(ap);
+  wrtMask=wrtMask | mask;
+}
+
+void logfileMask(int mask) {
+  logMask=logMask | mask;
+}
+
+void logfileStamp(void) {
+  struct tm *tim;
   struct timeb btim;
   int stamp;
 
@@ -84,23 +112,42 @@ void logfileStamp(char *text)
     if (stamp<lastStamp) { /* time smaller than last time -> new day -> new logfile */
       if (fil!=NULL) { fclose(fil); fil=NULL; }
       logfileOpen(0);
-    } else {
-      if (!dirty) return;
-#ifdef __VMS   
-      if (fil==NULL) logfileOpen(0);
-#endif
     }
-    lastStamp=stamp;
-    fprintf(fil, "%02d:%02d %s\n",tim->tm_hour,tim->tm_min,text);
+    lastStamp=stamp;      
+    logfileOut(LOG_MAIN, "--- %02d:%02d ---\n",tim->tm_hour,tim->tm_min);
     dirty=0;
   }
-#ifdef __VMS   
-  if (!logfileStd) { fclose(fil); fil=NULL; }
-#endif
 }
 
-void logfileUpd()
-{
+void logfileWrite(int mask) {
+  char *s, *next;
+
+  logMask=logMask | mask;
+  if (dirty) logfileStamp();
+
+#ifdef __VMS   
+  if (fil==NULL) logfileOpen(0);
+#endif
+  s=ebuf;
+  if (*s!='\0' && wrtMask & logMask) {
+    logfileStamp();
+    dirty=1;
+
+    next=strchr(s, '\1');
+    while (next!=NULL) {
+      *next='\0';
+      next++;
+      if (*next & logMask) {
+        fprintf(fil, "%s", s);
+      }
+      s=next+1;
+      next=strchr(s, '\1');
+    }
+  }
+  ebuf[0]='\0';
+  eptr=&ebuf[0];
+  logMask=0;
+  wrtMask=0;
 #ifdef __VMS   
   if (!logfileStd) { fclose(fil); fil=NULL; }
 #else
@@ -108,65 +155,18 @@ void logfileUpd()
 #endif
 }
 
-void logfileOutTmp(char *fmt, ...)
-{ va_list ap;
-
-  va_start(ap, fmt);
-  if (eptr!=NULL) {
-    if (eptr-ebuf > sizeof(ebuf)-512) {
-      sprintf(eptr, "... buffer full ... \n");
-      eptr=NULL;
-    } else {
-      vsprintf(eptr, fmt, ap);
-      eptr+=strlen(eptr);
-    }
-  }
-  va_end(ap);
-}
-
-void logfileOut(char *fmt, ...)
-{ va_list ap;
-
-  if (!dirty) { dirty=1; logfileStamp(""); }
-  dirty=1;
-
-#ifdef __VMS   
-  if (fil==NULL) logfileOpen(0);
-#endif
-  va_start(ap, fmt);
-  vfprintf(fil, fmt, ap);
-  va_end(ap);
-}
-
-void logfilePurge() {
-  ebuf[0]='\0';
-  eptr=&ebuf[0];
-}
-
-void logfileWriteTmp() {
-
-  if (!dirty) { dirty=1; logfileStamp(""); }
-  dirty=1;
-
-#ifdef __VMS   
-  if (fil==NULL) logfileOpen(0);
-#endif
-  if (ebuf[0]!='\0') fprintf(fil, "%s", ebuf);
-  ebuf[0]='\0';
-  eptr=&ebuf[0];
-}
-
 void logfileShowErr(char *text)
 {
-  logfileWriteTmp();
+  logfileWrite(LOG_ALL); /* write all */
   ErrWrite(fil, text);
 }
 
 void logfileClose()
-{ if (fil!=NULL) { fclose(fil); fil=NULL; }
+{ logfileWrite(LOG_MAIN);
+  if (fil!=NULL) { fclose(fil); fil=NULL; }
 }
 
-void logfileOutBuf(buf_type *buf)
+void logfileOutBuf(int mask, buf_type *buf)
 { char *obuf, *str;
   int osiz;
 
@@ -174,17 +174,17 @@ void logfileOutBuf(buf_type *buf)
   osiz=buf->size;
   while (buf->size>0) {
     if (buf->buf==NULL) {
-      logfileOutTmp(" ?"); break;
+      logfileOut(mask, " ?"); break;
     } else if (buf->buf[0]==1) {
-      logfileOutTmp(" %d", buf_get_int(buf));
+      logfileOut(mask, " %d", buf_get_int(buf));
     } else if (buf->buf[0]==2) {
-      logfileOutTmp(" %f", buf_get_float(buf));
+      logfileOut(mask, " %f", buf_get_float(buf));
     } else {
       str=buf_get_str(buf);
       if (*str=='\0') {
-        logfileOutTmp(" .");
+        logfileOut(mask, " .");
       } else {
-        logfileOutTmp(" %s", str);
+        logfileOut(mask, " %s", str);
       }
     }
   }
diff --git a/tecs/logfile.h b/tecs/logfile.h
index 916073ae..e921f487 100644
--- a/tecs/logfile.h
+++ b/tecs/logfile.h
@@ -1,14 +1,17 @@
 #include "buf.h"
 
+#define LOG_ALL  31
+#define LOG_SER  8
+#define LOG_NET  4
+#define LOG_WARN 2
+#define LOG_MAIN 1
+
 void logfileInit(char *path, int nodate);
-void logfileUpd(void);
-void logfileStamp(char *text);
-void logfileOut(char *fmt, ...);
-void logfileOutTmp(char *fmt, ...);
-void logfileOutBuf(buf_type *buf);
+void logfileOut(int mask, const char *fmt, ...);
+void logfileOutBuf(int mask, buf_type *buf);
 void logfileShowErr(char *text);
-void logfilePurge(void);
-void logfileWriteTmp(void);
+void logfileMask(int mask);
+void logfileWrite(int mask);
 void logfileClose(void);
 
 extern int logfileStd;
diff --git a/tecs/lsc.c b/tecs/lsc.c
index dfcebf6f..58e93e08 100644
--- a/tecs/lsc.c
+++ b/tecs/lsc.c
@@ -31,7 +31,7 @@ int LscEqPar(char *par, char *res) {
       i1=sscanf(plist[i], "%f%1s", &f1, &ch1);
       i2=sscanf(rlist[i], "%f%1s", &f2, &ch2);
       if (i1!=1 || i2!=1 || abs(f1-f2)>1e-4+abs(f1)*5e-6) {
-        logfileOut("%s#%s\n", plist[i], rlist[i]);
+        logfileOut(LOG_WARN, "%s#%s\n", plist[i], rlist[i]);
         return(0);
       }
     }
@@ -94,7 +94,10 @@ int LscCmdChk(SerChannel *ser, char *cmds) {
       r=str_split(res, ';', rlist, &n);
       if (r==NULL || n!=j) continue;
       for (i=0; i<n; i++) { /* compare parameters */
-        if (! LscEqPar(plist[i], rlist[i])) { j=0; break; }
+        if (! LscEqPar(plist[i], rlist[i])) {
+          j=0; break;
+          logfileMask(LOG_SER);
+        }
       }
     } while (j==0);
   } while (cn!=NULL);
diff --git a/tecs/serutil.c b/tecs/serutil.c
index 24702c9a..d3d1f00c 100644
--- a/tecs/serutil.c
+++ b/tecs/serutil.c
@@ -17,7 +17,6 @@ struct SerChan {
   struct AsynSrv__info    asyn_info; /* Contains skt, host, port & chan */
   struct RS__MsgStruct    to_host;
   struct RS__RespStruct   from_host;
-  int logIt;
   char cmd[SER_BUF_LEN];
 };
 
@@ -29,7 +28,7 @@ void SerA_error(void) {
   ErrMsg("asynsrv error"); ErrTxt(a_txt,0);
 }
 
-SerChannel *SerOpen(const char *host, int logIt, int msecTmo, void (*idleHdl)(int,int)) {
+SerChannel *SerOpen(const char *host, int msecTmo, void (*idleHdl)(int,int)) {
   struct SerChan *ser;
   char hbuf[64];
   char *p, *c;
@@ -49,7 +48,6 @@ SerChannel *SerOpen(const char *host, int logIt, int msecTmo, void (*idleHdl)(in
   }
   ser->asyn_info.port=port;
   ser->asyn_info.chan=chan;
-  ser->logIt=logIt;
   A_CHK(AsynSrv_Open(&ser->asyn_info));
   if (msecTmo==0) msecTmo=5000;
   A_CHK(AsynSrv_Config(&ser->asyn_info, "msecTmo", msecTmo, "idleHdl", idleHdl, NULL));
@@ -86,14 +84,14 @@ char *SerCmd(SerChannel *serch, char *cmnd) {
   if (l>=SER_BUF_LEN-1) ERR_COD(ENOBUFS);
 
   ser=(struct SerChan *)serch;
-  if (ser->logIt) logfileOutTmp(">%s\n", cmnd);
+  logfileOut(LOG_SER, ">%s\n", cmnd);
   cmnd[l]=ser->asyn_info.eot[1];
   cmnd[l+1]='\0';
   A_CHK(AsynSrv_SendCmnds(&ser->asyn_info, &ser->to_host, &ser->from_host, cmnd, NULL));
   result=AsynSrv_GetReply(&ser->asyn_info, &ser->from_host, NULL);
   if (result==NULL) ERR_MSG("empty result");
   /* if (idleHandler!=NULL) idleHandler(50,0); */
-  if (ser->logIt) logfileOutTmp("<%s\n", result);
+  logfileOut(LOG_SER, "<%s\n", result);
   return(result);
   OnError: return(NULL);
 }
diff --git a/tecs/serutil.h b/tecs/serutil.h
index 21f5e5c4..dfd5d8d6 100644
--- a/tecs/serutil.h
+++ b/tecs/serutil.h
@@ -2,7 +2,7 @@
 
 typedef struct { int private; } SerChannel;
 
-SerChannel *SerOpen(const char *host, int logIt, int msecTmo, void (*idleHdl)(int,int));
+SerChannel *SerOpen(const char *host, int msecTmo, void (*idleHdl)(int,int));
 char *SerCmdC(SerChannel *ser, const char *cmnd);
 char *SerCmd(SerChannel *ser, char *cmnd);
 int SerClose(SerChannel *ser);
diff --git a/tecs/server.c b/tecs/server.c
index 83a52ab2..b8bf7e34 100644
--- a/tecs/server.c
+++ b/tecs/server.c
@@ -29,19 +29,16 @@ int CocInitServer(int bufsize, int port) {
 
   /* first try to connect to an existing server */
 
-  logfileStamp("start server");
-  
   ERR_SI(mainFd=socket(AF_INET, SOCK_STREAM, 0));
   i = 1;
   ERR_SI(setsockopt(mainFd,SOL_SOCKET,SO_REUSEADDR,&i,sizeof(int))); /* allow quick port reuse */
   ERR_I(CocCreateSockAdr(&sadr, NULL, port));
   ERR_SI(bind(mainFd, (struct sockaddr *)&sadr, sizeof(sadr)));
-  logfileOut("created server on port %d\n", port);
+  logfileOut(LOG_MAIN, "created server on port %d\n", port);
   ERR_SI(listen(mainFd, 8));
   FD_ZERO(&mask);
   FD_SET(mainFd, &mask);
   maxfd=mainFd+1;
-  logfileUpd();
   return(0);
   OnError: return(-1);
 }
@@ -64,7 +61,6 @@ int CocHandle1Request(int tmo_msec, int fd) {
   ERR_SI(i=select(maxfd,&rmask,NULL,NULL,&tmo));
   if (fd>0 && FD_ISSET(fd, &rmask)) return(1);
 
-  logfileStamp("");
   if (FD_ISSET(mainFd, &rmask)) {
     ERR_SI(newfd=accept(mainFd, (struct sockaddr *)&cadr, &cadrlen));
     FD_SET(newfd, &mask);
@@ -78,18 +74,17 @@ int CocHandle1Request(int tmo_msec, int fd) {
     cList->next=cl;
     h=gethostbyaddr(&cadr.sin_addr, 4, AF_INET);
     if (h==NULL) {
-      logfileOut("(%d) open from %s\n", newfd, "local");
+      logfileOut(LOG_MAIN, "(%d) open from %s\n", newfd, "local");
     } else {
-      logfileOut("(%d) open from %s\n", newfd, h->h_name);
+      logfileOut(LOG_MAIN, "(%d) open from %s\n", newfd, h->h_name);
     }
-    logfileUpd();
   } else {
     cl0=cList; cl=cl0->next;
     while (cl!=NULL) {
       if (FD_ISSET(cl->fd, &rmask)) {
         buf->usize=recv(cl->fd, buf->start, buf->isize, 0);
         if (buf->usize<=0) {
-          logfileOut("(%d) disconnected\n",cl->fd);
+          logfileOut(LOG_MAIN, "(%d) disconnected\n",cl->fd);
           close(cl->fd);
           FD_CLR(cl->fd, &mask);
           cl0->next=cl->next;
@@ -104,19 +99,21 @@ int CocHandle1Request(int tmo_msec, int fd) {
           buf_reset(buf);
           err=NULL;
           varname=buf_get_str(buf);
-          logfileOutTmp("(%d) ", cl->fd);
+          logfileOut(LOG_NET, "(%d) ", cl->fd);
           if (varname[0]=='#') { /* access code */
             if (0==strcmp(varname,"#rdacc")) {
-              logfileOutTmp(" set read mode");
+              logfileOut(LOG_MAIN, " set read mode\n");
               cl->mode=1;
             } else if (0==strcmp(varname,"#rwacs")) {
-              logfileOutTmp(" set write mode");
+              logfileOut(LOG_MAIN, " set write mode\n");
               cl->mode=2;
             } else {
               err="bad access code";
             }
+            buf_put_end(bufo);
           } else if (cl->mode==0) {
             err="no access";
+            buf_put_end(bufo);
           } else {
             while (1) {
               if (varname[0]=='[') {
@@ -151,25 +148,25 @@ int CocHandle1Request(int tmo_msec, int fd) {
               if (buf_size(buf)<0) { err="syntax error"; break; }
             }
             buf_reset(buf);
-            logfileOutBuf(buf);
+            logfileOutBuf(LOG_NET, buf);
+            buf_put_end(bufo);
+            logfileOut(LOG_NET, " |");
+            logfileOutBuf(LOG_NET, bufo);
           }
-          buf_put_end(bufo);
-          logfileOutTmp(" |");
-          logfileOutBuf(bufo);
           if (err==NULL) {
-            logfileOutTmp("\n");
+            logfileOut(LOG_NET, "\n");
           } else {
             buf_put_start(bufo); /* reset output */
             buf_put_str(bufo, err); /* put error message */
             buf_put_end(bufo);
-            logfileOutTmp(" (%s)\n", err);
+            logfileOut(LOG_NET, " (%s)\n", err);
+            logfileMask(LOG_NET);
           }
           ERR_SI(send(cl->fd, bufo->buf, bufo->size, 0));
         }
       }
       cl0=cl; cl=cl->next;
     }
-    logfileUpd();
   }
   return(status);
   OnError: return(-1);
diff --git a/tecs/tecc.c b/tecs/tecc.c
index 68d2149d..6e5d1b7c 100644
--- a/tecs/tecc.c
+++ b/tecs/tecc.c
@@ -23,19 +23,19 @@ pTecsClient TeccInit(char *startcmd, int port) {
 
 int TeccSetDev(pTecsClient conn, char *dev) {
   str_copy(device, dev);
-  ERR_I(CocCmd((CocConn *)conn, "[device]"));
+  ERR_I(CocCmd(conn, "[device]"));
   return(0);
   OnError: return(-1);
 }
 
 char *TeccGetDev(pTecsClient conn) {
-  ERR_I(CocCmd((CocConn *)conn, "device"));
+  ERR_I(CocCmd(conn, "device"));
   return(device);
   OnError: return(NULL);
 }
 
 int TeccGet3(pTecsClient conn, float temp[3]) {
-  ERR_I(CocCmd((CocConn *)conn, "tempC,tempX,tempP"));
+  ERR_I(CocCmd(conn, "tempC,tempX,tempP"));
   temp[0]=tempC;
   temp[1]=tempX;
   temp[2]=tempP;
@@ -53,7 +53,7 @@ int TeccGet(pTecsClient conn, float *temp) {
 
 int TeccSet(pTecsClient conn, float temp) {
   tempC=temp;
-  ERR_I(CocCmd((CocConn *)conn, "[tempC]"));
+  ERR_I(CocCmd(conn, "[tempC]"));
   return(0);
   OnError: return(-1);
 }
@@ -63,11 +63,11 @@ int TeccSend(pTecsClient conn, char *cmd, char *reply, int replyLen) {
   int cnt;
 
   str_copy(command, cmd);
-  ERR_I(CocCmd((CocConn *)conn, "[$]"));
+  ERR_I(CocCmd(conn, "[$]"));
   cnt=40;
   util_delay(100);
   while (cnt>0) {
-    ERR_I(CocCmd((CocConn *)conn, "$"));
+    ERR_I(CocCmd(conn, "$"));
     if (command[0]!='\0') {
       str_ncpy(reply, command, replyLen);
       return(0);
@@ -82,14 +82,16 @@ int TeccSend(pTecsClient conn, char *cmd, char *reply, int replyLen) {
 
 int TeccQuitServer(pTecsClient conn) {
   quit=1;
-  ERR_I(CocCmd((CocConn *)conn, "quit"));
+  ERR_I(CocCmd(conn, "quit"));
   return(0);
   OnError: return(-1);
 }
 
 void TeccClose(pTecsClient conn) {
-  CocCloseClient((CocConn *)conn);
-  free(conn);
+  if (conn!=NULL) {
+    CocCloseClient(conn);
+    free(conn);
+  }
 }
 
 #ifdef __VMS
@@ -102,7 +104,7 @@ int TeccSetDevVms(pTecsClient conn, char **dev) {
   strncpy(device, dev[1], l);
   while (l>0 && device[l-1]==' ') l--; /* trim */
   device[l]='\0';
-  ERR_I(CocCmd((CocConn *)conn, "[device]"));
+  ERR_I(CocCmd(conn, "[device]"));
   return(0);
   OnError: return(-1);
 }
@@ -110,7 +112,7 @@ int TeccSetDevVms(pTecsClient conn, char **dev) {
 int TeccGetDevVms(pTecsClient conn, char **dev) {
   int l, ld;
 
-  ERR_I(CocCmd((CocConn *)conn, "device"));
+  ERR_I(CocCmd(conn, "device"));
   ld=strlen(device);
   l=*(short *)dev;
   if (ld>=l) ld=l;
diff --git a/tecs/tecc.h b/tecs/tecc.h
index 4fc2fdf4..5e41a672 100644
--- a/tecs/tecc.h
+++ b/tecs/tecc.h
@@ -6,9 +6,7 @@
 ------------------------------------------------------------------------*/
 
 typedef CocConn *pTecsClient;
-/* typedef struct { int tecc_private; } *pTecsClient; */
-/*  hidden structure for a tecs client
-------------------------------------------------------------------------*/
+
 
 pTecsClient TeccInit(char *server, int port);
 /*  init tecs client (connect to server)
diff --git a/tecs/tecs.c b/tecs/tecs.c
index cc18b2d8..1d8f7ce0 100644
--- a/tecs/tecs.c
+++ b/tecs/tecs.c
@@ -90,7 +90,7 @@ int instCurve(char *nam, char chan) {
   FILE *fil;
   int retstat;
 
-  logfileOut("install curve %s\n", nam);
+  logfileOut(LOG_MAIN, "install curve %s\n", nam);
   retstat=-2; /* errors in following section are severe */
   fil=NULL;
   crv=NULL;
@@ -165,10 +165,10 @@ int instCurve(char *nam, char chan) {
     sprintf(buf, "INTYPE %c:%s;INCRV %c:%d;DISPFLD %d:%c,1;DISPLAY:%d"
                     , chan, intype, chan, num, fld, chan, maxfld);
     ERR_I(LscCmdChk(ser, buf));
-    logfileOut("curve %d on channel %c selected\n", num, chan);
+    logfileOut(LOG_MAIN, "curve %d on channel %c selected\n", num, chan);
   } else { /* header does not match -> download */
     if (busy) ERR_MSG("busy");
-    logfileOut("download curve %d\n", num);
+    logfileOut(LOG_MAIN, "download curve %d\n", num);
     sprintf(buf, "INTYPE %c:%s;DISPFLD %d:%c,3;DISPLAY:%d"
                     , chan, intype, fld, chan, maxfld); /* select sensor type first to display sensor units */
     ERR_I(LscCmdChk(ser, buf));
@@ -188,7 +188,7 @@ int instCurve(char *nam, char chan) {
     } while (t!=NULL);
     sprintf(buf, "CRVHDR %d:%s;INCRV %c:%d;DISPFLD %d:%c,1", num, crv, chan, num, fld, chan); /* write header, select curve */
     ERR_I(LscCmdChk(ser, buf));
-    logfileOut("curve selected on channel %c\n", chan);
+    logfileOut(LOG_MAIN, "curve selected on channel %c\n", chan);
     str_copy(head, crv);
     str_upcase(head);
     saveIt=1;
@@ -403,7 +403,7 @@ int ReadTemp() {
 
   ERR_P(res=SerCmdC(ser, "DIOST?;HTR?;BUSY?;DOUT 3,29"));
   if (0==strcmp(res, "?TMO")) {
-    if (0==noResp) logfileOut("no response\n");
+    if (0==noResp) logfileOut(LOG_MAIN ,"no response\n");
     noResp=1;
     return(0);
   }
@@ -450,10 +450,14 @@ int ReadTemp() {
     DlogPut(&dset, tim, 2, t2); DlogUpd(&dset);
     logTime=(tim/logPeriod+1)*logPeriod;
   }
-  if (nP>0 && nX>0 && controlMode==2) {
+  if (nP>0 && nX>0 && controlMode==2 && tempC!=0) {
     d=tempH-tempX; d=exp(-d*d); /* if d is small, we are far from setpoint */
     if (tInt<60000/period) tInt+=d; /* increase integral time until 60 sec. */
-    p=d/tInt;
+    if (tInt>d) {
+      p=d/tInt;
+    } else {
+      p=1.0;
+    }
     tShift=tShift*(1.0-p)+p*(tempX-tempP);
     ERR_I(SetTemp(0));
   }
@@ -492,7 +496,7 @@ int ReadTemp() {
   if (key!=0) {
     auto_remote_time=tim+600;
     if (!(dirtyX || dirtyP)) {
-      logfileOut("user touched keys\n");
+      logfileOut(LOG_MAIN ,"user touched keys\n");
     }
     dirtyX=1; dirtyP=1;
     ERR_P(res=SerCmdC(ser, "MODE?"));
@@ -512,10 +516,16 @@ int Settings() {
 
   if (dirtyX || dirtyP) {
     if (busy==0 || dirtyX>=0 && dirtyP>=0) { /* do not enter when busy and dirtyX/P indicates error on last time */
-      if (device[0]=='\0') {
-        logfileOut("configure inputs for codes %d %d\n", codX, codP);
+      logfileOut(LOG_MAIN ,"configure inputs for ");
+      if (manualX) {
+        logfileOut(LOG_MAIN ,"%s ",  deviceX);
       } else {
-        logfileOut("configure inputs for %s\n", device);
+        logfileOut(LOG_MAIN ,"%+d ",  codX);
+      }
+      if (manualP) {
+        logfileOut(LOG_MAIN ,"%s\n", deviceP);
+      } else {
+        logfileOut(LOG_MAIN ,"%+d\n", codP);
       }
       if (dirtyP) {
         sprintf(buf, "DISPFLD 2:%c,1;DISPFLD 4:%c,1", channel[1], channel[3]);
@@ -620,12 +630,12 @@ int ExecuteRequest() {
 
   if (tim>auto_remote_time || setFlag) ERR_I(Settings());
   if (setFlag) {
-    if (nX>0) {
+    if (nX>0 && tempC!=0) {
       tInt=0; /* reset integral time */
       ERR_I(SetTemp(1));
-      logfileOut("set point\n");
+      logfileOut(LOG_MAIN ,"set point\n");
     } else {
-      logfileOut("flag reset\n");
+      logfileOut(LOG_MAIN ,"flag reset\n");
     }
     setFlag=0;
   }
@@ -682,14 +692,16 @@ int main(int argc, char *argv[])
   char *host;
   char buf[256], opt;
   int port, msecTmo;
+  int logMask;
 
+  logMask=LOG_MAIN;
   binDir="";
   logDir="";
   serverId="tecs";
   host="lnsp26";
   port=0;
   msecTmo=0;
-  logfileOutTmp("%s ", argv[0]);
+  logfileOut(LOG_MAIN ,"%s ", argv[0]);
   for (i=1;i<argc;i++) {
     if (argv[i]!=NULL) {
       if (argv[i][0]=='-') {
@@ -699,6 +711,7 @@ int main(int argc, char *argv[])
       }
       if ('l'==opt) {
         logIt=1;
+        logMask=LOG_ALL;
         period=5000;
         opt=' ';
       } else if ('s'==opt) {
@@ -723,10 +736,10 @@ int main(int argc, char *argv[])
         i++;
         port=atoi(argv[i]);
       } else {
-        logfileOutTmp("?");
+        logfileOut(LOG_MAIN ,"?");
       }
-      if (opt!=' ') logfileOutTmp("-%c ", opt);
-      logfileOutTmp("%s ", argv[i]);
+      if (opt!=' ') logfileOut(LOG_MAIN ,"-%c ", opt);
+      logfileOut(LOG_MAIN ,"%s ", argv[i]);
     }
   }
   if (port==0) port=9753;
@@ -736,8 +749,8 @@ int main(int argc, char *argv[])
   str_append(buf, serverId);
 
   logfileInit(buf, logIt);
-  logfileOutTmp("\n");
-  logfileWriteTmp();
+  logfileOut(LOG_MAIN ,"\n");
+  logfileWrite(logMask);
 
   ERR_I(CocInitServer(1024, port));
 
@@ -749,7 +762,7 @@ int main(int argc, char *argv[])
   CocDefInt(controlMode, CocWR);
   CocDefInt(quit, CocWR);
 
-  ERR_P(ser=SerOpen(host, logIt, msecTmo, idleHdl));
+  ERR_P(ser=SerOpen(host, msecTmo, idleHdl));
   ERR_I(CocHandleRequests(100, 0));
   ftime(&tim0);
   str_copy(buf, logDir);
@@ -760,12 +773,6 @@ int main(int argc, char *argv[])
     ERR_I(DlogCreate(&dset, buf, tim0.time, 2, 24*60*60/logPeriod, logPeriod, 0.0));
   }
   while (!quit) {
-    logfileStamp("");
-    if (logIt) {
-      logfileWriteTmp();
-    } else {
-      logfilePurge();
-    }
     /* read & control temp */
     iret=ReadTemp();
     if (iret<0) logfileShowErr("ReadTemp");
@@ -773,6 +780,7 @@ int main(int argc, char *argv[])
       iret=Settings();
       if (iret<0) logfileShowErr("Settings");
     }
+    logfileWrite(logMask);
 
     while (!quit) {
       ftime(&tim1);
@@ -784,6 +792,7 @@ int main(int argc, char *argv[])
       tim=tim1.time;
       iret=ExecuteRequest();
       if (iret<0) logfileShowErr("ExecuteRequest");
+      logfileWrite(logMask);
     }
     ftime(&tim1);
     tdif=((tim1.time-tim0.time)*1000+tim1.millitm-tim0.millitm)/period;
@@ -791,10 +800,10 @@ int main(int argc, char *argv[])
     tim0.time+=i / 1000;
     tim0.millitm=i % 1000;
     if (tdif>1) {
-      logfileOut("%d cycles lost\n", tdif-1);
+      logfileOut(LOG_MAIN ,"%d cycles lost\n", tdif-1);
     }
   }
-  logfileOut("%s got quit command\n", serverId);
+  logfileOut(LOG_MAIN ,"%s got quit command\n", serverId);
   DlogClose(&dset);
   return(1);
   OnError:
diff --git a/test.tcl b/test.tcl
index 8682a710..6a5ede69 100644
--- a/test.tcl
+++ b/test.tcl
@@ -27,7 +27,7 @@ ServerOption ReadUserPasswdTimeout  7000
 # time to wiat for a user/passwd to be sent from a client. Increase this
 # if there is a problem connecting to a server due to network overload\
 
-ServerOption LogFileDir $shome/sics/log
+ServerOption LogFileDir $shome/log
 #LogFileDir is the directory where the command log is going
 
 ServerOption LogFileBaseName  $shome/sics/tmp/server