diff --git a/tecs/make_gen b/tecs/make_gen
index f4297b2..b06a83a 100644
--- a/tecs/make_gen
+++ b/tecs/make_gen
@@ -10,7 +10,7 @@
 
 LIBR_OBJ  =coc_util.o myc_err.o myc_str.o myc_buf.o myc_time.o
 SERV_OBJ  =tecs.o coc_server.o tecs_lsc.o tecs_serial.o coc_logfile.o \
-           tecs_data.o logger_tecs.o $(LIBR_OBJ)
+           tecs_data.o $(LIBR_OBJ)
 CLI_OBJ   =tecs_cli.o coc_client.o $(LIBR_OBJ)
 TCLI_OBJ  =sys_getenv.o sys_env.o myc_tmp.o sys_cmdpar.o \
            sys_date.o sys_wait.o sys_lun.o sys_rdline.o \
@@ -71,9 +71,6 @@ keep_running: keep_running.c
 six: six.c term.o sys_select.o libtecsl.a
 	$(CC) $(CFLAGS) -o $@ $Q $(FORTIFYOBJ)
 
-tt: tt.c term.o sys_select.o libtecsl.a
-	$(CC) $(CFLAGS) -o $@ $Q $(FORTIFYOBJ)
-
 rexstart: rstart.c myc_str.o myc_err.o instr_hosts.o
 	$(CC) $(CFLAGS) -o $@ $Q $(FORTIFYOBJ)
 	@ echo "$(PWD)/rstart"
diff --git a/tecs/six.c b/tecs/six.c
index 0f7da60..ba76145 100644
--- a/tecs/six.c
+++ b/tecs/six.c
@@ -749,9 +749,6 @@ int main (int argc, char *argv[]) {
         PrintCmd(buf, CLIENT);
         ERR_SI(send(sock[0], "INT1712 3\n", 10, 0));
         buf[0]='\0';
-        if (level != 1 && !busy[0]) {
-          PutC("nothing to stop\n");
-        }
       } else if (0==strcmp(buf, "-") ||
                  0==strcmp(buf, "--") ||
                  0==strcmp(buf, "+") ||
diff --git a/tecs/tecs.c b/tecs/tecs.c
index aff78a3..db1d259 100644
--- a/tecs/tecs.c
+++ b/tecs/tecs.c
@@ -5,9 +5,6 @@
 #include <signal.h>
 #include <string.h>
 #include <ctype.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
 #include "myc_mem.h"
 #include "myc_err.h"
 #include "coc_util.h"
@@ -17,7 +14,6 @@
 #include "myc_time.h"
 #include "tecs_lsc.h"
 #include "tecs_data.h"
-#include "logger.h"
 
 /* --- non ANSI signal --- */
 #ifndef SIGPIPE
@@ -174,7 +170,7 @@ static int
   lockAlarm,
   cntError;
 
-static int tim, rdTim; /* actual time, read Time */
+int tim, rdTim; /* actual time, read Time */
 
 static int decod[8]={21,20,17,16,5,4,1,0}; /* for code conversion */
 
@@ -682,6 +678,8 @@ again:
   } else if (tLimit>tMaxLimit) {
     tLimit=tMaxLimit;
   }
+  maxPowerFlt=25;
+  sscanf(maxPower, "%f", &maxPowerFlt);
   for (i=j; i<j+2; i++) {
     s=sensors[i];
     typ=s->type[0];
@@ -1410,6 +1408,8 @@ void CalcMaxPower(void) {
       str_append(maxPower, ")");
     }
     maxCurrent=sqrt(best->p/resist);
+    iRange = best->iRange;
+    iAmp = best->iAmp;
     assert(maxCurrent>0);
   }
 }
@@ -1509,7 +1509,7 @@ int SetMaxPower(void) {
   fbuf=FakeScale(ctlSens, tLimit);
   if (loop==1) {
     PidSumHdl(COC_RD, NULL, 0);
-    if (!initMaxPower && lastCurrent != maxCurrent) {
+    if (!initMaxPower && lastCurrent != maxCurrent && lastCurrent != 0) {
       logfileOut(LOG_MAIN, "pid: %s\nlast %f max %f\n", pid, lastCurrent, maxCurrent);
       prop=prop*lastCurrent/maxCurrent;
     }
@@ -2844,7 +2844,6 @@ int main(int argc, char *argv[]) {
   int i, iret;
   char *inistr;
   char buf[256], opt;
-  char loggerDir[256];
 
   signal(SIGPIPE, ignore_forever);
 
@@ -3065,18 +3064,8 @@ int main(int argc, char *argv[]) {
   str_copy(statusBuf, "starting up");
   logfileStatusBuf(statusBuf);
 
-  if (logDir[0] == '/') {
-    str_copy(buf, logDir);
-  } else {
-    getcwd(buf, sizeof buf);
-    str_append(buf, "/");
-    ERR_I(str_append(buf, logDir));
-  }
-  ERR_I(str_append(buf, serverId));
-  ERR_I(str_copy(loggerDir, buf));
-  mkdir(loggerDir, S_IRWXU+S_IRGRP+S_IXGRP+S_IROTH+S_IXOTH);
-  /* do not check return value */
-  LoggerSetDir(loggerDir);
+  str_copy(buf, logDir);
+  str_append(buf, serverId);
   logfile=logfileInit(buf, logIt, use_stdout, logIt && use_stdout);
   CocDefStr(logfile, RD);
   logfileOut(LOG_MAIN ,"\n");
diff --git a/tecs/tecs_data.c b/tecs/tecs_data.c
index 192c016..13f2e89 100644
--- a/tecs/tecs_data.c
+++ b/tecs/tecs_data.c
@@ -8,7 +8,6 @@
 #include "myc_time.h"
 #include "coc_logfile.h"
 #include "tecs_data.h"
-#include "logger.h"
 
 #define RUN_SIZE 1024
 #define SET_LEN 1024
@@ -35,7 +34,6 @@ typedef struct _Set {
   float *var;
   Run *runs;
   Summary sum;
-  Logger *log;
 } Set;
 
 typedef struct {
@@ -127,7 +125,6 @@ Set *CreateSet(Base *base, char *name, float *var, int step, int lifetime, int s
   s->start = start;
   s->step = step;
   s->var = var;
-  s->log = LoggerMake(name, step);
   ResetSum(&s->sum);
   return s;
   OnError:
@@ -270,8 +267,7 @@ int DataPut(DataSet *set, int time, float value) {
 
 int DataPutAll(DataBase *base, int time) {
   Set *s;
-  char value[32];
-  
+
   if (base == NULL) {
     s=database.head;
   } else {
@@ -280,10 +276,6 @@ int DataPutAll(DataBase *base, int time) {
   while (s!=NULL) {
     if (s->var!=NULL) {
       ERR_I(Put(s, time, *s->var));
-      if (s->log != NULL) {
-        snprintf(value, sizeof value, "%f", *s->var);
-        LoggerWrite(s->log, mycUnixTime(time), s->step, value);
-      }
     }
     s=s->next;
   }