The rail mountable CAN Bus to CAN Bus gateway, the CG-ARM7, transmits CAN signals between CAN Bus subsystems. The CG-ARM7 allows a flexible design of the wiring topology. Star and tree structures as well as extensive line structures can be realized. Among the available functions are data rate adaption, message filtering as well as identifier conversion between the coupled busses.
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High speed processing and low latencies allow the use with high data rates and bus loads. Cost efficient series applications are particularly promoted by use of CG-ARM7.
Device configuration is conducted using a PC, via CAN if also using any of the CPC Series PC Interfaces (PCI Express, USB, or Ethernet are supported) or through the built-in RS232 interface. Download software for the configuration is available for Windows and Linux PCs. The CG-ARM7 is also available in version HS/LS, allowing for the conversion of high speed to low speed CAN.
Please Note: For special tasks, such as modification of the data content of CAN messages, a development kit with the CG-ARM7/D/E design variant is optionally available for writing custom specific (ARM7) firmware. A range of code compatible CPC-ARM7 design variants are available, with the following differentiating features:
The connection to the CAN busses is achieved via pluggable terminals. Besides the CAN signals the clamps also carry the supply voltage for CG-ARM7. The following table shows the pin assignment of the internally connected interfaces.
|2, 3, 6||GND||Ground|
|4||CAN1_H||CAN1 signal line (dominant high)|
|5||CAN1_L||CAN1 signal line (dominant low)|
|7||CAN2_H||CAN2 signal line (dominant high)|
|8||CAN2_L||CAN2 signal line (dominant low)|
|Voltage on bus connections||-30||+30||V|
|Admissible power consumption (at 60°C)||n.s.||2000||mW|
Any (also temporary) stress in excess of the limiting values may cause permanent damage on CG-ARM7 and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device.
|Current consumption (running idle)||n.s.||40||n.s.||mA|
All values, unless otherwise specified, refer to a supply voltage of 24V and an environmental temperature of 20°C.