From 0a4560be6678b63b00c05cc7cda0d1d23e7864f3 Mon Sep 17 00:00:00 2001
From: Thomas Juerges <4-jurges@users.noreply.git.astron.nl>
Date: Fri, 2 Apr 2021 20:17:40 +0200
Subject: [PATCH] Ping server only if the connection is active.
---
devices/clients/opcua_connection.py | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/devices/clients/opcua_connection.py b/devices/clients/opcua_connection.py
index c5fa45507..cfd8d003b 100644
--- a/devices/clients/opcua_connection.py
+++ b/devices/clients/opcua_connection.py
@@ -97,7 +97,10 @@ class OPCUAConnection(CommClient):
ping the client to make sure the connection with the client is still functional.
"""
try:
- self.client.send_hello()
+ if self.connected is True:
+ self.client.send_hello()
+ else:
+ self.streams.debug_stream("Will not ping OPC-UA server {} because the connection is inactive.".format(self._servername()))
except Exception as e:
raise Exception("Lost connection to server {}.".format(self._servername())) from e
--
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