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

A communication system for controlling a plurality of devices using the CAN network protocol comprising:

• a plurality of CAN network modules each connected to an associated one of said devices for controlling each device in accordance with a received CAN message;
• a wireless transceiver connected to a CAN network module that receives CAN messages, said wireless transceiver including a processor that converts each received CAN message to a non-CAN network message;
• and
• a monitoring and control unit comprising:
• a monitoring and control transceiver which communicates with said wireless transceiver;
• and a monitoring/control processor that at least one of generates and receives messages that monitor and control said plurality of CAN network modules,
• wherein the processor in said wireless transceiver converts said received CAN message to a non-CAN network message by removing stuff bits in a data field and removing a CAN-related bit in a trailer of said received CAN message, and
• wherein the wireless transmitter transmits only a portion of said received CAN message to said monitoring and control unit.

A communication system for controlling a plurality of devices using the CAN network protocol comprising:

• a CAN network module connected to each of said devices for controlling each device in accordance with a received CAN message;
• a first transceiver connected to said CAN network that receives non-CAN network messages, said first transceiver including a processor that converts each received message to a CAN message for a connected module;
• and
• a monitoring and control unit comprising:
• a second transceiver which communicates with said first transceiver;
• and
• a processor for generating and receiving non-CAN network messages for monitoring and/or controlling said plurality of devices,
• wherein said non-CAN network messages are generated by removing stuff bits in a data field and by omitting at least an acknowledgement bit in a trailer of said CAN messages for transmission to said first transceiver,
• wherein said non-CAN network messages are received by said first transceiver using the Ethernet protocol.

A communication system for controlling a plurality of devices using the CAN network protocol comprising:

• a CAN network module connected to each of said devices for controlling each device in accordance with a received CAN message;
• a wireless transceiver connected to said CAN network for receiving CAN messages, said wireless transceiver including a processor that converts a message received from a respectively connected module to a non-CAN network message;
• and
• a monitoring and control unit comprising:
• a transceiver which communicates with said wireless transceiver;
• and
• a processor for at least one of generating and receiving messages for monitoring and controlling said plurality of devices,
• wherein said wireless transceiver is connected to said CAN network converting said CAN messages into a message containing only a portion of said CAN message by removing stuff bits in a data field and removing an acknowledge (ACK) bit and CRC bits in a trailer of said CAN message for wireless transmission to said monitoring/control unit.