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CiA 301 compliant

CANopen devices certified in 2021

In 2021, six devices passed the CANopen conformance test performed by CAN in Automation (CiA).

(Source: Adobe Stock)
The office room of the CiA testing engineer provides the required technical equipment to test CANopen devices as well as their interoperability (Source: CAN in Automation)

CiA offers services of an independent testing center for CANopen (FD) devices. The successful test ensures the device’s conformance with the CANopen application layer and communication profile as specified in CiA 301. Thus, manufacturers can prove to their customers that their CiA-certified products are CANopen compliant.

GLS line guidance and grid localization sensor (Source: Sick)

The GLS100 line guidance and grid localization sensor from Sick (Germany) is used for automatic localization of AGV (automatic guided vehicle) systems in warehouses, logistics, and distribution. The device detects and decodes 2D codes, which are attached in the form of a grid on the floor. Using the data provided by the device, the AGV system is localized and repositioned by a higher-level control (e.g. PLC programmable logic controller). The sensor designed for use in industrial and logistics areas is available for reading distances up to 100 mm. Bit rates up to 1 Mbit/s and the node-ID can be configured via LSS or using the Sopas ET configuration software. The manufacturer also received a CANopen certificate for its MLS (magnetic line guidance) sensor in 2020.

CANopen encoder (Source: Shanghai Ayan Industry System)

The CANopen encoder from Shanghai Ayan Industry System (China) is available as single-turn or multi-turn encoder version with a maximal resolution of 14 bit (single-turn) or 16384 turns (multi-turn). The company offers encoders and other sensors for heavy-duty applications. Appropriate variants are available for work in explosive areas and under water.

Integrated CANopen drives for space-limited applications (Source: Harmonic Drive)

The US company Harmonic Drive certified a family of integrated CANopen drives. The family members include FHA, RSA, RSF, LPA, and SHA series. The devices implement the CANopen device profile for drives and motion control (CiA 402) and support the torque, velocity, position, homing, CSP (cyclic synchronous profile), CSV (cyclic synchronous velocity), and CST (cyclic synchronous torque) operation modes. Implemented homing modes include single-ended, double-ended, or a teachable-position homing mode. The integrated drives eliminate the need for an external drive, which improves wiring and enables a very compact device housing. For example, the RSA-8A mini actuator is suitable for space-limited applications such as robotics. A single-turn 14-bit absolute encoder has been integrated as well. The Harmonic Drive HDL software is used for initial tuning, commissioning, and analysis purposes.

CMP 8271 pressure transmitter (Source: Trafag)

Already in 2020, Trafag (Switzerland) successfully tested its CMP 8270, and now the CMP 8271 pressure transmitter followed. The device for measuring ranges up to 700 bar is dedicated for heavy-duty applications as it is completely-welded, provides shock and vibration resistance, and is designed for operating temperatures from -40 °C to +125 °C. It supports bit rates up to 1 Mbit/s, the self-starting function, the CANopen device profile for measuring devices (CiA 404), as well as the layer setting services (LSS, CiA 305). LSS are used to set the device’s node-ID and bit rate via software. The company also offers a CANopen configuration tool for the transmitter, which allows configuration of all CANopen parameters as well as the access to the complete object dictionary.

CTOP-8101 I/O module (Source: Shanghai Chenzhu Instrument)

The CANopen-certified CTOP-8101 from Shanghai Chenzhu Instrument is an I/O module implementing the CiA device profile for generic I/O modules (CiA 401). The device includes four RTD (resistive temperature detector) inputs with an accuracy of ± 0,2 °C and 16 configurable digital I/Os. Designed for extreme operating environments, it features an aluminum alloy shell and provides resistance against EMC interference, vibration, salt spray (allowing short-term condensation), and corrosion. The operating temperature ranges from -30 °C to +60 °C. Possible industrial automation applications include wind power generation, ships, etc.

The sixth tested device from a German manufacturer is not yet ready for serial production and will be announced as soon as it is offered on the market.

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