diff --git a/acs/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/driver/AbstractOpcDeviceDriver.java b/acs/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/driver/AbstractOpcDeviceDriver.java
index 4c7feb8..45cfc5d 100644
--- a/acs/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/driver/AbstractOpcDeviceDriver.java
+++ b/acs/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/driver/AbstractOpcDeviceDriver.java
@@ -98,7 +98,7 @@ public class AbstractOpcDeviceDriver extends AbstractDeviceDriver implements Opc
 
                 while (var24.hasNext()) {
                     String itemString = (String) var24.next();
-                    if (!ObjectUtl.isEquals(itemValues.get(itemString), JsonUtl.parse(read.get(itemString)))) {
+                    if (!ObjectUtl.isEquals(String.valueOf(itemValues.get(itemString)), String.valueOf(read.get(itemString)))) {
                         check = false;
                     }
                 }