diff --git a/KEITHLEY-2701/createImages b/KEITHLEY-2701/createImages
index abec916b363f7228905f20f46f63e12c7fa5dc62..a2d747f227635dabc696e8dd9528b84a9bbe1112 100755
--- a/KEITHLEY-2701/createImages
+++ b/KEITHLEY-2701/createImages
@@ -1,38 +1,43 @@
-#!/bin/bash
+ #!/bin/bash
 #
-# Rolf Niepraschk <Rolf.Niepraschk@ptb.de>, 2017-03-29
+# Rolf Niepraschk <Rolf.Niepraschk@ptb.de>, 2017-04-03
 #
 # Erzeugt aus einem leeren Messgeräte-Bild und neun 7-Segment-Bildern
-# neue Messgeräte-Bilder mit zufälliger Anzeige
+# neue Messgeräte-Bilder 
 #
-# Parameter=Anzahl der Mantissenziffern
-# (wenn angegeben, dann kein Exponenent)
+# Parameter1 = Anzahl der erzeugten Bilddateien
+#
+# Parameter2 = Anzahl der Einzelziffern
 
-MAIN="KEITHLEY-2701" # device name
+MAIN="KEITHLEY-617" # device name
 IMAGE_DIR=./images
-MAX_FILES=10
 MAX_DIGITS=7 # do not edit!
+MAX_FILES=10 # do not edit!
+NUMBER_OF_DIGITS=$MAX_DIGITS
+
+SHOW_EXP=1
 
 if [ -n "$1" ]; then
-  NUMBER_OF_DIGITS=$1
-  SHOW_EXP=0
-else
-  NUMBER_OF_DIGITS=$MAX_DIGITS
-  SHOW_EXP=1
+  MAX_FILES=$1
+  if [ -n "$2" ]; then
+    SHOW_EXP=0
+    NUMBER_OF_DIGITS=$2
+  fi  
 fi
 
 if (( $NUMBER_OF_DIGITS > $MAX_DIGITS )); then
   NUMBER_OF_DIGITS=$MAX_DIGITS
-fi 
-if (( $NUMBER_OF_DIGITS < 1 )); then
-  NUMBER_OF_DIGITS=1
-fi 
+else 
+  if (( $NUMBER_OF_DIGITS < 1 )); then
+    NUMBER_OF_DIGITS=1
+  fi
+fi  
 
 rm -rf "$IMAGE_DIR"
 mkdir -p "$IMAGE_DIR"
 
-dotFile='dot.png'
-minusFile='minus.png'
+_dotFile='dot.png'
+_minusFile='minus.png'
 emptyCanvas='xc:transparent'
 
 digitFile[0]='digit-0.png'
@@ -47,13 +52,13 @@ digitFile[8]='digit-8.png'
 digitFile[9]='digit-9.png'
 digitFile[99]=$emptyCanvas # empty canvas
 
-digitPos[7]='+185+220'
-digitPos[6]='+207+220'
-digitPos[5]='+229+220'
+digitPos[1]='+185+220'
+digitPos[2]='+207+220'
+digitPos[3]='+229+220'
 digitPos[4]='+251+220'
-digitPos[3]='+273+220'
-digitPos[2]='+295+220'
-digitPos[1]='+317+220'
+digitPos[5]='+273+220'
+digitPos[6]='+295+220'
+digitPos[7]='+317+220'
 
 dotPos[7]=${digitPos[7]}
 dotPos[6]=${digitPos[6]}
@@ -69,7 +74,7 @@ DPR=$((RANDOM % $NUMBER_OF_DIGITS + 1)) # random dot position (1..$NUMBER_OF_DIG
 for (( i=1; i<=$MAX_DIGITS; i++ )); do 
   DNR[$i]=$((RANDOM % 10)) # random digit number (0..9)
   if [ $DPR == $i ]; then
-    DF[$i]="$dotFile"
+    DF[$i]="$_dotFile"
     DP[$i]="." # dot character
   else
     DF[$i]=$emptyCanvas
@@ -94,20 +99,20 @@ done
 fname="$IMAGE_DIR/$MAIN@$value@.png"
 
 convert body.png \
-  $DIGIT1  -geometry ${digitPos[7]} -composite \
-  $DF1                  -geometry ${dotPos[7]}     -composite \
-  $DIGIT2  -geometry ${digitPos[6]}  -composite \
-  $DF2                   -geometry ${dotPos[6]}    -composite \
-  $DIGIT3  -geometry ${digitPos[5]}  -composite \
-  $DF3                   -geometry ${dotPos[5]}    -composite \
+  $DIGIT1  -geometry ${digitPos[1]} -composite \
+  $DF1                   -geometry ${dotPos[1]}     -composite \
+  $DIGIT2  -geometry ${digitPos[2]}  -composite \
+  $DF2                   -geometry ${dotPos[2]}    -composite \
+  $DIGIT3  -geometry ${digitPos[3]}  -composite \
+  $DF3                   -geometry ${dotPos[3]}    -composite \
   $DIGIT4  -geometry ${digitPos[4]}  -composite \
   $DF4                   -geometry ${dotPos[4]}    -composite \
-  $DIGIT5  -geometry ${digitPos[3]}  -composite \
-  $DF5                   -geometry ${dotPos[3]}    -composite \
-  $DIGIT6  -geometry ${digitPos[2]}  -composite \
-  $DF6                   -geometry ${dotPos[2]}    -composite \
-  $DIGIT7  -geometry ${digitPos[1]}  -composite \
-  $DF7                   -geometry ${dotPos[1]}    -composite \
+  $DIGIT5  -geometry ${digitPos[5]}  -composite \
+  $DF5                   -geometry ${dotPos[5]}    -composite \
+  $DIGIT6  -geometry ${digitPos[6]}  -composite \
+  $DF6                   -geometry ${dotPos[6]}    -composite \
+  $DIGIT7  -geometry ${digitPos[7]}  -composite \
+  $DF7                   -geometry ${dotPos[7]}    -composite \
   $fname
 
 exiv2 -M"set Exif.Image.ImageDescription value=$value" $fname