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CAN / CAN Bus Gateway


The CG-ARM7/D/E is a CAN Bus Gateway designed for applications where there is a demand for higher flexibility. Both the supply voltage range and the operating temperature range are extended in a way that the use in automotive applications is possible.

The CG-ARM7/D/E obtains its potential through the use of a 32 bit micro controller with 48MHz clock. High speed processing and low latencies allow the use with high data rates and bus loads.

A benefit of using a CG-ARM7 CAN Gateway is that the restriction of the maximum data rate depending on cable length for single CAN segments can be abolished for the over-all CAN system.


CG-ARM7/D/E CAN Gateway

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:

  • CG-ARM7 (rail mountable; non-isolated; HS/HS, HS/LS speed options; RS-232 configuration port)
  • CG-ARM7/GTI (rail mountable; galvanic isolation; HS/HS, HS/LS speed options; RS-232 configuration port)
  • CG-ARM7/D/E (firmware re-programmable / recommended for development; included with development kit; HS/HS, HS/LS, LS/LS speed options; USB configuration port; extended temperature operation)

HS = High speed; LS = Low speed



Key Features

  • CAN Gateway for Commercial, Business, and Industrial applications
    • FCC Class A Verified: Use is restricted to commercial, business, and industrial environments
  • Connection of CAN subnetworks with differing data rates
    • Default (HS/HS) build connects two high speed subnetworks with support for differing data rates
    • Optional (HS/LS) build can be special ordered for interfacing between high speed and low speed CAN subnetworks
    • Optional (LS/LS) build can be special ordered for interfacing between ow speed CAN subnetworks
  • Filtering and buffering of data traffic
    • Ready to use firmware allows configuration to filter and/or map messages by identifier
  • Protocol Infrastructure:
    • Supports CAN protocols 2.0A (11-bit identifiers) and 2.0B (29-bit identifiers)
    • Suitable for use with CANopen, DeviceNet, and J1939 Higher Layer Protocols
  • Microcontroller NXP LPC2119 with 2 internal CAN controllers
    • Code compatible supported across CG-ARM7, CG-ARM7/GTI, and CG-ARM7/D/E CAN Gateway family
    • USB interface for configuration and firmware download
  • Extended supply voltage range
  • Extended temperature range

Technical Data

Layout and Connection

The connection of the CAN bus is done by a D-Sub 9 male and female plug. These are also used as default power supply connection. An USB interface is provided for configuration, firmware download and optional power supply purposes.

Limiting Values

Parameter Minimal Maximal Unit
Storage temperature -40 +80 °C
Operating temperature -40 +70 °C
Supply voltage -40 +35 V
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/D/E and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device.

Nominal Values

Parameter Minimal Typical Maximal Unit
Current consumption (running idle) - tbd - mA
Supply Voltage 6 24 30 V

All values, unless otherwise specified, refer to a supply voltage of 24V and an environmental temperature of 20°C.

Scope of Delivery

  • CAN/CAN Gateway CG-ARM7/D/E
  • User Manual
  • Configuration Software