tests/ethercat/wago_higen/ethercat@etherlab/master@EthercatNode/process_variables.xml
fixed problems reported by certification testing : vendor identifier acces rights (now read only), and bvlc_maintenance timer was increasing too fast.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<ProcessVariables xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>