Device in a system operating with CAN-protocol and in a control and/or supervision system

A testing device in a CAN-system connected by a digital serial communication bus, the testing device comprising:

• a first group of module means connected to said digital serial communication bus at a first group of locations (A), respective ones of said first group of module means being connected to control equipment at each of said location;
• a second module means connected to said digital serial communication bus at a second location (B), and having a radio communication interface means for creating partial CAN messages which retain a substantially CAN message format from complete CAN messages on said digital serial communications bus;
• and
• portable radio communication means for linking each location of said first group of locations (A) to said second module at location (B), whereby complete CAN messages from said first module means relating to the connection of said equipment are sent via said digital serial communication bus to said second module means and transferred as a partial CAN message via said radio link to said portable radio communication means.

A testing device which permits testing at a first plurality of locations of a CAN-system, the testing device comprising:

• a module at each of said first plurality of locations that operates connected equipment;
• a portable control panel connected to a radio communication terminal that is positioned at each of said first plurality of locations for as to receive information related to functioning of said equipment;
• and
• a second module at a second location, said second module being configured to receive and create partial CAN messages which retain a substantially CAN message format from complete CAN messages on said CAN system,
• said CAN messages containing information relating to the operation of said connected equipment, said second module including a radio communication terminal configured to forward said partial CAN messages to said control panel,
• wherein the information relating to operation of said equipment is monitored by said control panel at each of said first plurality of locations.

A testing device for verifying operations of a CAN-system comprising a plurality of modules interconnected on a serial digital communication bus, wherein at least one of said modules at a first location has equipment connected thereto, the testing device comprising:

• a control panel adapted to be moved from module to module, said control panel having a radio terminal that receives and transmits information;
• and
• a second module connected to said digital communication bus at a second location, said second module having a radio terminal configured to receive partial CAN messages which retain a substantially CAN message format from said control panel,
• wherein said radio terminal establishes a complete CAN messages from said partial CAN messages and transfers information received from said serial digital communication bus as a partial CAN message to said control panel,
• wherein commands are issued to said equipment from said control panel, and information generated by said equipment is monitored by said control panel.