# When use "system.opc.browse" error **URL:** \ **Category:** Ignition\ **Tags:** vision\ **Created:** [November 2, 2023, 7:44am UTC](https://forum.inductiveautomation.com/t/when-use-system-opc-browse-error/81356 "2023-11-02T07:44:31Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![sam\_yin](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@sam\_yin](https://forum.inductiveautomation.com/u/sam_yin)\ **Post date:** [November 2, 2023, 7:44am UTC](https://forum.inductiveautomation.com/t/when-use-system-opc-browse-error/81356/1 "2023-11-02T07:44:31Z")
when I update my tags using script ![err](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/b/eb37c231e60ab75798916cec5b0ab4c6bcdade06.jpeg) ,error show up like this : Traceback (most recent call last): File "event:actionPerformed", line 15, in File "module:GSD\_ADM\_Addressing.S71200", line 131, in addressTags at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:351) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.getResponse(GatewayInterface.java:543) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:283) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invokeWithTimeout(GatewayInterface.java:966) at com.inductiveautomation.factorypmi.application.script.builtin.ialabs.IALabsOPCFunctions.doBrowse(IALabsOPCFunctions.java:15) at com.inductiveautomation.ignition.common.script.builtin.ialabs.AbstractIALabsOPCFunctions.browse(AbstractIALabsOPCFunctions.java:25) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Read timed out ``` at org.python.core.Py.JavaError(Py.java:547) at org.python.core.Py.JavaError(Py.java:538) at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:192) at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction. __call__ (ScriptManager.java:552) at org.python.core.PyObject. __call__ (PyObject.java:400) at org.python.pycode._pyx58.addressTags$1(:155) at org.python.pycode._pyx58.call_function() at org.python.core.PyTableCode.call(PyTableCode.java:173) at org.python.core.PyBaseCode.call(PyBaseCode.java:306) at org.python.core.PyFunction.function ___call__ (PyFunction.java:474) at org.python.core.PyFunction. __call__ (PyFunction.java:469) at org.python.core.PyFunction. __call__ (PyFunction.java:459) at org.python.pycode._pyx136.f$0(:32) at org.python.pycode._pyx136.call_function() at org.python.core.PyTableCode.call(PyTableCode.java:173) at org.python.core.PyCode.call(PyCode.java:18) at org.python.core.Py.runCode(Py.java:1687) at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:803) at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.runActions(ActionAdapter.java:206) at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.invoke(ActionAdapter.java:299) at com.inductiveautomation.factorypmi.application.binding.action.RelayInvocationHandler.invoke(RelayInvocationHandler.java:57) at com.sun.proxy.$Proxy43.actionPerformed(Unknown Source) at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source) at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.desktop/java.awt.Component.processMouseEvent(Unknown Source) at java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source) at java.desktop/java.awt.Component.processEvent(Unknown Source) at java.desktop/java.awt.Container.processEvent(Unknown Source) at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Component.dispatchEvent(Unknown Source) at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Component.dispatchEvent(Unknown Source) at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.EventQueue$4.run(Unknown Source) at java.desktop/java.awt.EventQueue$4.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.desktop/java.awt.EventQueue$5.run(Unknown Source) at java.desktop/java.awt.EventQueue$5.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.desktop/java.awt.EventDispatchThread.run(Unknown Source) ``` Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Read timed out at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:351) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.getResponse(GatewayInterface.java:543) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:283) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invokeWithTimeout(GatewayInterface.java:966) at com.inductiveautomation.factorypmi.application.script.builtin.ialabs.IALabsOPCFunctions.doBrowse(IALabsOPCFunctions.java:15) at com.inductiveautomation.ignition.common.script.builtin.ialabs.AbstractIALabsOPCFunctions.browse(AbstractIALabsOPCFunctions.java:25) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.python.core.PyReflectedFunction. **call** (PyReflectedFunction.java:190) ... 58 more Caused by: java.net.SocketTimeoutException: Read timed out at java.base/java.net.SocketInputStream.socketRead0(Native Method) at java.base/java.net.SocketInputStream.socketRead(Unknown Source) at java.base/java.net.SocketInputStream.read(Unknown Source) at java.base/java.net.SocketInputStream.read(Unknown Source) at java.base/java.io.BufferedInputStream.fill(Unknown Source) at java.base/java.io.BufferedInputStream.read1(Unknown Source) at java.base/java.io.BufferedInputStream.read(Unknown Source) at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) at java.base/sun.net.www.http.HttpClient.parseHTTP(Unknown Source) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) at java.base/java.net.HttpURLConnection.getResponseCode(Unknown Source) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.getResponse(GatewayInterface.java:437) ... 67 more Ignition v8.1.24 (b2023011208) Java: Azul Systems, Inc. 11.0.16.1 ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [November 2, 2023, 11:49am UTC](https://forum.inductiveautomation.com/t/when-use-system-opc-browse-error/81356/2 "2023-11-02T11:49:20Z")
Your browse operation is unable to complete in the 60 seconds allowed for gateway RPC calls. You will need to perform this operation in small, non-recursive chunks, and/or run it in a gateway script (to not have the timeout). Browse operations are expensive, so you should save the results somewhere for later callers to re-use. ---
**Author:** ![sam\_yin](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@sam\_yin](https://forum.inductiveautomation.com/u/sam_yin)\ **Post date:** [December 6, 2023, 6:42am UTC](https://forum.inductiveautomation.com/t/when-use-system-opc-browse-error/81356/3 "2023-12-06T06:42:09Z")
thanks for you answer.