diff -r 7c67286cddbe -r 8e5a9830867e etherlab/runtime_etherlab.py
--- a/etherlab/runtime_etherlab.py	Fri Sep 28 17:52:30 2018 +0300
+++ b/etherlab/runtime_etherlab.py	Fri Sep 28 17:59:28 2018 +0300
@@ -46,7 +46,7 @@
     if res != 0 :
         PLCObject.LogMessage(
             LogLevelsDict["WARNING"],
-            "%s : %s"%(command,output))
+            "%s : %s" % (command,output))
 
 def EthercatSDOUpload(pos, index, subindex, var_type):
     global SDOThread