diff --git a/README.md b/README.md
index 64794a48..1762a3cd 100644
--- a/README.md
+++ b/README.md
@@ -751,10 +751,11 @@ Scripts can be activated and deactivated by controlling of this state with ack=f
 
 
 ## Changelog
-### 2.1.1 (2016-05-20)
+### 2.1.1 (2016-05-21)
 * (bluefox) try to fix "Duplicate name" error
 * (bluefox) modify readFile/wrieFile commands
 * (gh-god) fix stop of script and unsubscribe
+* (paul53) check type of set value and min, max by setState
 
 ### 2.1.0 (2016-05-13)
 * (bluefox) add getHistory command
diff --git a/io-package.json b/io-package.json
index 339fcab2..44862212 100644
--- a/io-package.json
+++ b/io-package.json
@@ -8,9 +8,9 @@
             "hobbyquaker <hq@ccu.io>"
         ],
         "news": {
-            "en": "(bluefox) try to fix Duplicate name error\n(bluefox) add getFile/setFile commands\n(gh-god) fix stop of script and unsubscribe",
-            "de": "(bluefox) try to fix Duplicate name error\n(bluefox) add getFile/setFile commands\n(gh-god) fix stop of script and unsubscribe",
-            "ru": "(bluefox) try to fix Duplicate name error\n(bluefox) add getFile/setFile commands\n(gh-god) fix stop of script and unsubscribe"
+            "en": "(bluefox) try to fix Duplicate name error\n(bluefox) modify writeFile/readFile commands\n(gh-god) fix stop of script and unsubscribe\n(paul53) check type of set value and min, max by setState",
+            "de": "(bluefox) try to fix Duplicate name error\n(bluefox) modify writeFile/readFile commands\n(gh-god) fix stop of script and unsubscribe\n(paul53) check type of set value and min, max by setState",
+            "ru": "(bluefox) try to fix Duplicate name error\n(bluefox) modify writeFile/readFile commands\n(gh-god) fix stop of script and unsubscribe\n(paul53) check type of set value and min, max by setState"
         },
         "desc":                     "Javascript/Coffeescript Script Engine",
         "platform":                 "Javascript/Node.js",
diff --git a/javascript.js b/javascript.js
index bf277d80..d21effdf 100644
--- a/javascript.js
+++ b/javascript.js
@@ -1442,6 +1442,24 @@
                     }
                 }
 
+                // Check type of state
+                var common = objects[id] ? objects[id].common : null;
+                if (common &&
+                    common.type &&
+                    common.type !== 'mixed' &&
+                    common.type !== 'file'  &&
+                    common.type !== 'json'  &&
+                    common.type !== typeof state.val
+                ) {
+                    adapter.log.warn('Wrong type of ' + id + '.state. Please fix, while deprecated and will not work in next versions.');
+                    //return;
+                }
+                // Check min and max of value
+                if (common && typeof state.val === 'number') {
+                    if (common.min !== undefined && state.val < common.min) state.val = common.min;
+                    if (common.max !== undefined && state.val > common.max) state.val = common.max;
+                }
+
                 if (states[id]) {
                     adapter.setForeignState(id, state, function () {
                         if (typeof callback === 'function') callback();
@@ -1653,6 +1671,62 @@
 
                 native = native || {};
 
+                // Check min, max and def values for number
+                if (common.type !== undefined && common.type === 'number') {
+                    var min = 0;
+                    var max = 0;
+                    var def = 0;
+                    var err;
+                    if (common.min !== undefined) {
+                        min = common.min;
+                        if (typeof min !== 'number') {
+                            min = parseFloat(min);
+                            if (isNaN(min)) {
+                                err = 'Wrong type of ' + id + '.common.min';
+                                logger.error(err);
+                                if (callback) callback(err);
+                                return;
+                            } else {
+                                common.min = min;
+                            }
+                        }
+                    }
+                    if (common.max !== undefined) {
+                        max = common.max;
+                        if (typeof max !== 'number') {
+                            max = parseFloat(max);
+                            if (isNaN(max)) {
+                                err = 'Wrong type of ' + id + '.common.max';
+                                logger.error(err);
+                                if (callback) callback(err);
+                                return;
+                            } else {
+                                common.max = max;
+                            }
+                        }
+                    }
+                    if (common.def !== undefined) {
+                        def = common.def;
+                        if (typeof def !== 'number') {
+                            def = parseFloat(def);
+                            if (isNaN(def)) {
+                                err = 'Wrong type of ' + id + '.common.def';
+                                logger.error(err);
+                                if (callback) callback(err);
+                                return;
+                            } else {
+                                common.def = def;
+                            }
+                        }
+                    }
+                    if (common.min !== undefined && common.max !== undefined && min > max) {
+                        common.max = min;
+                        common.min = max;
+                    }
+                    if (common.def !== undefined && common.min !== undefined && def < min) common.def = min;
+                    if (common.def !== undefined && common.max !== undefined && def > max) common.def = max;
+                }
+
                 if (forceCreation) {
                     adapter.setObject(name, {
                         common: common,
diff --git a/test/testFunctions.js b/test/testFunctions.js
index 42b622cf..324928b1 100644
--- a/test/testFunctions.js
+++ b/test/testFunctions.js
@@ -112,7 +112,7 @@ describe('Test JS', function() {
         this.timeout(5000);
         checkConnectionOfAdapter(done);
     });
-/*
+
     it('Test JS: check creation of state', function (done) {
         this.timeout(2000);
         // add script
@@ -673,7 +673,7 @@ describe('Test JS', function() {
         objects.setObject(script._id, script, function (err) {
             expect(err).to.be.not.ok;
         });
-    });*/
+    });
 
     it('Test JS: test write file to "javascript"', function (done) {
         this.timeout(5000);