The rail mountable Ethernet/CAN-Gateway EtherCAN CI transmits data between a CAN network and Ethernet systems. As a universal CAN-Interface with an Ethernet interface, EtherCAN CI is independent from internal data busses and thus can be used with a variety of different work stations (PC, Mac, UNIX-workstation).
EtherCAN CI includes a Winbond W90N740CD (ARM7 core) with 80Mhz clock and a Linux operating system. In addition, the device has 16MB SDRAM and 2MB Flash. The connection to the CAN bus is done by a CAN controller of type NXP SJA1000 and supports the CAN protocols 2.0A and 2.0B.
The protocol used for the communication between a host and EtherCAN CI is documented and disclosed.
Development kits that allow the development of host applications for the operating systems Windows 2000/XP/Vista or Linux as well as the development of applications for the local implementation of control functions on EtherCAN CI are separately available.
EtherCAN CI includes a CAN segment connected by connectors of type D-Sub 9, the pin assignment complying to CiA DS-102 standard. Besides the CAN signals the connectors also carry the power supply for EtherCAN CI. In addition, EtherCAN CI includes an Ethernet connector (Twisted Pair, 10/100MBit/s) and a serial connector (D-Sub).
The following table shows the assignment of the CAN connectors:
| Pin | Name | Function |
|---|---|---|
| 2 | CAN_L | CAN_L bus line (dominant low) |
| 3, 6 | GND | Ground line |
| 7 | CAN_H | CAN_H bus line (dominant high) |
| 9 | V+CAN | Power supply +24V |
| Parameter | Minimum | Maximum | Unit |
|---|---|---|---|
| Storage temperature | - 25 | + 70 | °C |
| Operating temperature | 0 | + 50 | °C |
| Supply voltage | - 100 | + 35 | V |
| Voltage on bus connections | - 30 | + 30 | V |
| Any (also temporary) stress in excess of the limiting values may cause permanent damage on EtherCAN and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device. | |||
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Current consuption | – | 70 | 150 | mA |
| Supply voltage | 10 | 24 | 30 | V |
| All values, unless otherwise specified, refer to a supply voltage of 24V and an environmental temperature of 20°C. | ||||