diff --git a/update_psa_impl b/update_psa_impl
index 781d725..456647f 100755
--- a/update_psa_impl
+++ b/update_psa_impl
@@ -8,6 +8,26 @@ source ./read_config
 source ./news_to_ismas
 source ./news_from_ismas
 
+trap collect_current_configuration EXIT
+
+collect_current_configuration () {
+    local func="${FUNCNAME[0]}"
+    echo $func
+
+    return 0
+
+    for line in $(cat $UPDATE_CONF |\
+              jq -r .conf.szeged.zg[1].z[1].etc.psa_config)
+    do
+        conf_file="$(echo $line | 
+                     sed -E -ne 's/^[^{}]\s+\"(DC2C_[[:alnum:]]+)\".*$/\1/gp')"
+        if ! [ -z $conf_file ]; then
+            local v=$(cat "$psa_config_dir/${conf_file}.json" | jq -r .version)
+            echo "$conf_file.json version=$v"
+        fi
+    done
+}
+
 update_psa() {
 
     if ! updates_available; then    # check for false alarm
@@ -67,28 +87,28 @@ update_psa() {
     # dateinen zu ueberpruefen
 
     local changed_files=$(changed_file_names)
-    local conf_ini_files=$(filter_conf_ini_files "$changed_files")
+    local json_ini_files=$(filter_json_ini_files "$changed_files")
 
     update_psa_report_changed_file_names $changed_files # message to ISMAS
 
     # check if *.conf and/or *.ini-files have to md5-sum as denoted
     # in update.conf
-    if ! check_md5_for_changed_conf_and_ini_files "$conf_ini_files" ; then
+    if ! check_md5_for_changed_json_and_ini_files "$json_ini_files" ; then
         local __r=$?
         log_error "$func:${LINENO}: new customer files wrong"
         revert_customer_repository
         exit $__r
     fi
     
-    if ! check_hardware_compatibility "$conf_ini_files" ; then
+    if ! check_hardware_compatibility "$json_ini_files" ; then
         local __r=$?
-        log_error "$func:${LINENO}: conf/ini-files not fit for PSA"
+        log_error "$func:${LINENO}: json/ini-files not fit for PSA"
         revert_customer_repository
         exit $__r
     fi
 
     # copy *.conf and/or *.ini-files to their corresponding system-directories
-    if ! copy $conf_ini_files; then
+    if ! copy $json_ini_files; then
         local __r=$?
         log_error "$func:${LINENO}: copy operation failed"
         revert_customer_repository
@@ -147,6 +167,10 @@ update_psa() {
     if ! cleanup_previous_version; then
         log_error "$func:${LINENO}: cleanup_previous_version failed"
     fi
+
+    # TODO: nach (erfolgreichem) abschluss sollte man immer das aktuelle setting
+    # ans ISMAS schicken. ISMAS sollte immer wissen, was gerade auf dem 
+    # Automaten steht.
         
     update_psa_cleanup $UPDATE_ISMAS_PROGRESS \
         $RC_SUCCESS "cleanup after psa update"