CAN-Interface

Transfer rate

The CAN-bus may have a length of up to 10 km! The selectable transfer rates are 1 Mbit/s, 500 Kbit/s, 250 Kbit/s, 125 Kbit/s, 100 Kbit/s, 50 Kbit/s, 20 Kbit/s or 10 Kbit/s. The transfer rate is configurable by software or by DIP-switches.

CAN-Interface connection (galvanically isolated)

The CAN-interface connection is realized by a 9 pin D-SUB socket connector. The galvanically isolated CAN interface ensures a protection against connected CAN devices by using optocouplers.

CAN-Addressing

The CAN-interface is configurable in three different ways.

Special mode

The usage of this mode is to set the CAN-interface quickly to default values. This is helpfull for a quick and easy setup and facilitates an error analysis or an initial operation.

Software mode

The software mode is to fully setup the module using an included software. It is possible to set up:

• Transfer rate
• CAN 2.0A (11 bit-addressing, "base frame format") oder CAN 2.0B (29 bit-addressing, "extended frame format ")
• CAN-interface address
• Response-Modul-Address (responses are sent to this address)

DIP-switch mode

The DIP-switch mode is to manually configure the CAN-interface using DIP-switches. The DIP-switch configuration may be read out using the DELIB-Configuration Utility. A configuration-check is therefore easy and simple.

Inputs

A/D channels, converting voltage to a digital value (converting current is optional)

The module has A/D channel inputs, converting the voltage to a digital value. A unipolar range between 0V..5V or 0V..10V or as alternative, a bipolar range between -5V..+5V or -10V..+10V is selectable. Optionally, the current can be converted to a digital value. In this case, the range is 0..20mA.

D/A outputs

D/A outputs, converting a digital value to a voltage

A unipolar range between 0V..5V or 0V..10V or as alternative, a bipolar range between -5V..+5V or -10V..+10V is selectable.

Timeout-protection

If required, a timeout-protection may be enabled, switching automatically the outputs to a predefined voltage value or to disable mode. This prevents damage of the connected device and takes place, when e.g. the communication gets lost. The switching protection is indicated by a LED.

Connector

Easy to maintain connector system

The plug and socket consist of a multipoint socket connector and a multipin connector with a throw-off lever. Plug-in and plug-out is easy as well as rewiring the terminal strip. The wire connection itself is realized with a screwless connector system. A tool is included with each module.

CAN-Addressing

The CAN-interface is configurable in three different ways. These are the Special-mode, the Softwaremode and the DIP switch mode.

Special mode

The usage of this mode is, to set the CAN-interface quickly and easily to default values. This is helpful for a quick and easy setup and facilitates an error analysis or an initial operation.

Software mode

The software mode is to fully setup the module, using an included software. It is possible to set up:

• Transfer rate
• CAN 2.0A (11 bit-addressing, "base frame format") oder CAN 2.0B (29 bit-addressing, "extended frame format ")
• CAN-interface address
• Response-Modul-Address (responses are sent to this address)

Software to configure the CAN-interface

Software to configure the CAN-interface

Click to enlarge

With this software, it is not only possible to store or load the stored configuration values, but also to see the actual set up values of the module. An error analysis is thus greatly facilitated.

DIP-switch mode

The DIP-switch mode is to manually configure the CAN-interface by using DIP-switches. The DIP-switch configuration may be read out, using the DELIB-Configuration Utility. A configuration-check is therefore easy and simple.

CAN-Interface Power Supply 7V to 24V DC (by a double-pole pluggable screw clamp) Interface CAN (galvanically isolated using optocoupler) 9 pin D-SUB socket connector CAN 2.0A or CAN 2.0B Transfer rate: 1 Mbit/s, 500 Kbit/s, 250 Kbit/s, 125 Kbit/s, 100 Kbit/s, 50 Kbit/s, 20 Kbit/s or 10 Kbit/s One LED for each 3,3V and 5V voltage feed Control-LED CAN activity ERROR Change of state (only for digital inputs) Timeout shutdown (only for outputs) Access to I/O module A/D-Module (16 Bit) Inputs 16  * A/D channels Mode U: (voltage) Unipolar: 0..5V or 0..10V, (0..20mA optional) Bipolar: +5V, +10V Mode I: (current) Range between 0-20mA(optional) Activity-LED Activity LED (short blink on communication on the interface) Status LED (short blink on accessing A/D converter) Connectors 18 pin pluggable terminal block for 16  * A/D channels D/A-Module (16 Bit) Outputs 4 * D/A outputs - short-circuit proof (16 bit, 10 us conversion time, each output has an additional galvanic isolation) Mode: U (voltage) Unipolar: 0V-5V, 0V-10V Bipolar: +5V, +10V Activity-LED Activity LED (short blink on communication on the interface) Status LED (short blink on accessing D/A converter) Connectors 10 pin pluggable terminal block to 4 * D/A outputs General Operating temperature 10°C...+50°C Dimensions 85 mm x 126 mm x 31 mm (lxwxh)

Controlling of the CAN modules

Accessing to the RO-CAN modules over the CAN- interface happens by the following ways.

Automatic Sending Mode

The modules are able to send CAN packets automatically in a definded time interval. The time interval can reach from millisecond to second. The following picture shows a packet, which will be sent to the CAN-address 1234.

Automatic Receiving Mode

An automatic receiving on four different CAN-addresses can be configured individually. Also you can define, if the received CAN datas should be given out to relays or D/A converters. The following picture shows a packet, whose datas are sent to the CAN address 543.

A timeout protection switches the relays or D/A outputs, in failure, automatically of.

Also the user can activate a timeout protection. If the RO-CAN module cannot receive any CAN packets after a defined time interval, the module disables all outputs and set the D/A outputs to 0V.

DEDITEC CAN Addressingmode

A special CAN protocol, which have been developed by us, allows registry control to all functions of our modules. So are BYTE-, WORD- and LONG- accesses possible. A registry- and protocol description can be found in our download area.

Configuration by a graphic Windows configuration software

All CAN-addresses, CAN-speed and packet options can be set up from the user, over a special Configuration Utility for the RO-CAN serie. The configuration works over a free serial interface of a PC. Predefined CAN-addresses and several modes are adjustable by DIP switches.

Software-updates and start-up of the RO-CAN modules

Further to the delivered Windows driver library, the RO-CAN modules can be tested and updated with newer firmware. Over graphical testprograms, the modules can be tested and configured (without using the CAN-interface). So you can do test measurements and check the electrical wirings. Are all settings configured, the module can be connected to the CAN-interface.

CAN Configuration Utility - RX

CAN Configuration Utility - RX

Click to enlarge

CAN Configuration Utility - TX

CAN Configuration Utility - TX

Click to enlarge

Plug connection

Screwless plug connectors

All input and output connectors have a practical, screwless terminal block. An mechanic ejection guarantees a very quick module change without any special tools. Wire connection happens with screwdriver or an included plastic pin. (s. pic.1)

Pic1:

Connection example of a RO-Module

		RO-MODULE
		Step 1: Push the plastic tool into the small notch at the side of the terminal block, to open the clamp contacts for the wire connection.
		Step 2: When you are looking into the wire hole, you can see, that the clamp contacts have been opened. The end of the wire should be bared 5-7mm. Now put it as deep as possible into the opened hole.
		Step 3: After that, pull the plastic tool out of the notch. The clamp is closed again now.
		Step 4: After correct connecting, pull out the wiring by hand isn't no more possible

Manuals

Datasheets

Driver / Programs

Downloads

Demo-Software