Modem
isCAN USB
The CAN dongle isCAN USB with the USB interface grants a fast access to any CAN/CANopen based network. Mobile set-up as well as monitoring are supported. Desktop PCs and notebook devices without installed CAN adapter can be taken into the field and connected with the CAN network within seconds. It is connected to the CAN bus with a 9 pin D-Sub connector according to the CiA specification DS-102. The integrated optocoupler provides galvanic isolation of the CAN network. The device is bus powered, thus not depending on external power supplies, LEDs indicate the actual working condition of the interface and transmission errors.
The isCAN USB interface supports the CAN specification 2.0A (11 bit ID) and 2.0B (29 bit ID). It supports transmission rates of up to 1 MBit/s. The driver software contains a standardized RP1210 driver, that facilitates the use of the J1939 protocol and the ISO15765-2 protocol.
With the included driver DLL user-specific applications can be integrated easily. For application developers, there are header files and documentation available as well as examples in C/C++, C# and VB.Net. Also, an integration into Labview is supported by a Labview driver package. Optionally an OPC server software (isCAN Server) is available.
Gateways
On the PROFINET network, the PN/CAN gateway is a PROFINET I/O device and supports transfer rates up to 100 Mbps full duplex; and up to 1 Mbps on the CAN bus.
The I/O data of the CAN participants is transparently displayed in a freely configurable manner on the PROFINET network and can thus be processed directly in the PLC. The PN/CAN gateway is integrated with a GSDML file in the hardware configurator and can be fully configured there. No other software tools for configuration or handling blocks for programming are necessary, making gateway use straightforward.
The features of the PN/CAN gateway are rounded out by MRP (media redundancy), as well as extensive diagnostic functions and an interface for online diagnostics.
The PN/CAN gateway CANopen represents a full-fledged CANopen master.
With the Layer 2 PN/CAN gateway, CAN devices can be connected using proprietary CAN protocols, including devices with the SAE J1939 protocol, among others.
Coupler
On the PROFIBUS-DP, the DP/CAN coupler is a normal participant.
The I/O data of the CANopen® participants is shown in the PROFIBUS in a transparent and freely configurable manner.
The DP/CAN coupler is integrated in the hardware configurator with a GSD file and can be completely configured there. Additional tools are not necessary.
On PROFIBUS, all standard transfer rates up to 12 Mbps are supported; on the CAN bus up to 1 Mbps.
The PROFIBUS address is set using a DIP switch.
Parameterization of the CANopen participants using SDO frames and administration of emergency messages is also possible.
Alternatively, the DP/CAN coupler can also be used as a CAN Layer 2 device on the CAN bus. This makes it possible to also integrate customer-specific CAN protocols via PROFIBUS.
Modules
The module can be plugged into either the central frame or the expansion frame. It supports CAN 2.0A (11 bit) and CAN 2.0B (29 bit) frames with a freely selectable transfer rate from 10 kbps to 1 Mbps.
The CAN 300 PRO can send and receive CAN telegrams in Layer 2 mode. In the CANopen master mode, the data of the CANopen slaves can be processed as a process image table in the PLC.
Use as a CANopen slave is also possible. For standard applications, such as motor control with CANopen, application examples are available. In addition, handling blocks for the SAE J1939 protocol are available.
There are 16 freely settable timers available in the CAN 300 PRO. Each timer can trigger a freely programmable CAN telegram. This means the synchronous protocols widely available in drive and servo control are easy to implement using the CAN 300 PRO.
A DIP switch for setting the transfer rate and station address facilitates commissioning. An optional Micro memory card stores the project. In this way, replacement of the parameterization or the module during servicing can be carried out quickly.
6 LEDs indicate the operating status of the module. There is a USB interface for diagnostics and parameterization.
There is also a CAN 400 PRO for the S7-400.
Bridge
It can be used as a message repeater to expand network distances, as well as to connect different CAN networks together. It is immaterial whether the CAN networks have different transfer rates or work with different protocols, such as CANopen® and a proprietary protocol.
A flexibly adjustable filtering logic can accept freely selectable identifiers and transfer them to the other network.
The CAN messages are forwarded to the respective other CAN network according to the store-forward principle and sent out again.
With the CAN bridge, the CAN networks are physically decoupled (electrical isolation) and the bus load is reduced on both CAN networks. The CAN bridge allows a flexible design of the network topology; star and tree structures as well as extensive line structures can be implemented. The CAN bridge can be configured for simple applications using the two rotary coding switches.
For more complex applications, the supplied CAN bridge parameterization software can be used to flexibly adjust the filtering and forwarding of CAN telegrams.
Up to 256 range filters are available, along with up to 4 bit filters for address filtering. The configuration is imported through a USB interface and can also be read out again.
The CAN bridge works both in 11-bit and 29-bit mode, and can communicate with transmission rates from 10 kbps to 1 Mbps. It has a powerful microcontroller that can operate even with extremely high data rates and bus loads without loss of messages. 5 LEDs indicate the status of the device and the connected CAN networks.
Connectors
Helmholz offers you the CAN bus connector for transmission rates up to 1 Mbps.
The CAN bus connector is plugged directly onto the CAN bus interface (SUB-D socket, 9-pin) of the CAN bus participants. The CAN bus cables are connected using 6-pin screw terminals.
A slide switch is used to set whether the connector is to be used as a node or at the segment end.
The switch can also be operated in the installed condition. The setting is clearly visible.
In node setting (“OFF”), the connector must be operated when the incoming and outgoing bus are connected to each other. The terminating resistor is then ineffective.
As segment end (“ON”), the connector must be set on the first and last (outermost) participants of the segment respectively. In this case the terminating resistor is connected on the incoming bus, and the outgoing bus is disconnected.
The CAN connectors also work in the extended ambient temperature range of -25 °C to +85 °C.
We offer training courses!
JCOM Automation Inc. offers high-quality, hands-on training. Our courses have a lot of labs, and we have all the latest equipment, including state of the art diagnostic equipment. We offer training on; PROFIBUS, PROFINET, Ethernet IP, Modbus TCP, Modbus RTU, and HART. For a quote on a course, please contact us directly.
We are a certified training center for PROFIBUS PROFINET International for both PROFIBUS and PROFINET, which guarantees high-quality training.
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