Helmholz 700-671-PNC01 Manuel utilisateur

Helmholz GmbH & Co. KG | Hannberger Weg 2 | 91091 Großenseebach | Germany 06.10.2023

Phone +49 9135 7380-0 | Fax +49 9135 7380-110 | info@helmholz.de | www.helmholz.de

Quickstart Guide

PN/CAN Gateway CAN Layer 2

Order number: 700-671-PNC01

Version

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 2

Content

1Safety instructions ................................................................................................ 3

2Introduction ......................................................................................................... 3

3Function of PN/CAN Gateway CAN Layer 2........................................................... 4

4Connection........................................................................................................... 4

4.1 Power supply ............................................................................................................................... 4

4.2 CAN-Bus....................................................................................................................................... 4

4.3 PROFINET ..................................................................................................................................... 4

4.4 USB interface ................................................................................................................................ 4

5Download and Installation of GSDML file ............................................................. 5

5.1 Install GSDML file in TIA Portal...................................................................................................... 5

6Configuring the PN/CAN-Gateway ....................................................................... 6

6.1 Parameterize the PN/CAN-Gateway .............................................................................................. 6

6.2 Adding CAN messages.................................................................................................................. 7

6.2.1 Automatically receiving CAN messages..................................................................................... 8

6.2.2 Automatically transmitting CAN messages ................................................................................ 8

7Assign a PROFINET device name to the PN/CAN gateway..................................... 9

8Programming in the PLC ....................................................................................10

8.1 Control (2 bytes outputs) ........................................................................................................... 10

8.2 Status (6 bytes input) ................................................................................................................. 10

9LED-based diagnosis...........................................................................................11

10 Technical data .................................................................................................12

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 3

1Safety instructions

Target audience

This description is only intended for trained personnel qualified in control and automation

engineering who are familiar with the applicable national standards. For installation,

commissioning, and operation of the components, compliance with the instructions and

explanations in this operating manual is essential. The specialist personnel are to ensure that

the application or the use of the products described fulfills all safety requirements, including all applicable

laws, regulations, provisions, and standards.

Intended use

The device has a protection rating of IP 20 (open type) and must be installed in an electrical

operating room or a control box/cabinet to protect it against environmental influences. To

prevent unauthorized operation, the doors of control boxes/cabinets must be closed and

possibly locked during operation. The consequences of improper use may include personal

injury to the user or third parties, as well as property damage to the control system, the product, or the

environment. Use the device only as intended!

Operation

Successful and safe operation of the device requires proper transport, storage, setup, assembly,

installation, commissioning, operation, and maintenance. Operate the device only in flawless

condition. The permissible operating conditions and performance limits (technical data) must

be adhered to. Retrofits, changes, or modifications to the device are strictly forbidden.

Security

The device is a network infrastructure component and therefore an important element in the

security consideration of a plant. When using the device, therefore, observe the relevant

recommendations to prevent unauthorized access to installations and systems.

2Introduction

This document explains the initial commissioning of the PN/CAN-Gateway

CAN Layer 2. The latest version of the documentation can be found at

www.helmholz.de or scan the QR code directly.

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3Function of PN/CAN Gateway CAN Layer 2

The "PN/CAN Gateway, PROFINET/CAN Layer 2" connects a CAN network to a PROFINET network. The

gateway can integrate the data of CAN messages in 11-bit or 29-bit format (CAN 2.0A / CAN 2.0B) into

the IO area of a PROFINET CPU.

4Connection

4.1 Power supply

The PN/CAN gateway must be supplied with DC 24 V at the connection

"Ext. V DC 18 ... 30 V" via the supplied connector plug.

The housing of the PN/CAN-Gateway Coupler is not grounded.

Please connect the functional earth terminal of the PN/CAN-

Gateway properly to the reference potential.

The device is intended to be supplied by an isolated Limited Energy

Source according to UL61010-1 (3rd ed cl. 9.4) or according to

UL60950-1/UL62368-1 or Class 2 according to NEC. Please use Cu power supply wires, AWG 28-

12. Maximum length of removed insulation is 10 mm. Temperature cable rating is 87 °C.

4.2 CAN-Bus

The CAN bus is connected to the "CAN" interface using a SUB-D

plug (e.g. Helmholz CAN bus connector) to the "CAN" interface.

The PN/CAN gateway does not contain a CAN terminating

resistor. If the PN/CAN gateway is connected to the end of a

CAN stub line, the terminating resistor in the CAN

connector must be activated.

"CAN-GND" is isolated from the operating voltage and USB.

4.3 PROFINET

The RJ45 Ethernet sockets "X1 P1" and "X1 P2" are used to connect the PROFINET network.

The PROFINET Ethernet sockets are only intended for connection to computer networks (LANs) and

must not be connected to telephone networks or telecommunications lines.

4.4 USB interface

The service USB interface is only required for the firmware update and for diagnoses in the event of

support. The USB interface is isolated potential-free from the supply voltage.

Pin CAN bus D-sub-connector

CAN Low

CAN GND

4 -

CAN High

9 -

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 5

5Download and Installation of GSDML file

The current GSDML file is available on the website www.helmholz.de. Go to the

product page of the "PN/CAN Gateway CAN Layer 2" and then to the download area

or follow the link stored in the QR code. There you can download the GSDML file of

the "PN/CAN Gateway CAN Layer 2" in zipped form. Before installation, the zipped

files must be unzipped accordingly.

The GSDML file is required for integration into an engineering tool for the PROFINET side. It has the file

extension "xml" and is delivered together with an image file in BMP format. The installation of the

GSDML file in the TIA Portal is described below as an example.

5.1 Install GSDML file in TIA Portal

You can install the GSDML file of the PN/CAN gateway in the TIA Portal by selecting the directory with

the unzipped GSDML file as the source path in the "Extras / Manage device description file (GSD)" menu.

Then the GSDML file is displayed for selection and can be installed via the corresponding button.

After successful installation, the

"PN/CAN Gateway Layer 2" is

available in the hardware catalog of

the TIA Portal under "Other field

devices / PROFINET IO / Gateway /

Helmholz GmbH & Co. KG /

Helmholz PN/CAN gateways".

Use the entry "PN/CAN-Gateway L2 V1.04" for new projects.

The second entry "PN/CAN-Gateway L2" is present for old projects for compatibility reasons and should not be used

in new projects.

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 6

6Configuring the PN/CAN-Gateway

Add the "PN/CAN-Gateway L2 V1.04" to the project and connect it to your PROFINET network.

By calling the properties a unique PROFINET name should be assigned to the PN/CAN gateway and the IP

address should be checked for plausibility.

The name of the configured device must be assigned to the physical device later (see Chap. 7).

6.1 Parameterize the PN/CAN-Gateway

The first slot entry after the ports is the slot for the parameters. Set the CAN bitrate, and the type of CAN

identifier (11 bit or 29 bit).

The meaning of the other parameters can be taken from the manual and have no relevance for standard

applications. The other "PN/CAN L2" slot 0 modules do not contain any parameters.

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 7

6.2 Adding CAN messages

The PN/CAN gateway layer 2 can send and receive CAN messages with

0 to 8 bytes of data and any CAN ID. For each expected CAN message

and each CAN message to be sent, a module with the CAN identifier

must be configured in the slots of the PN/CAN gateway.

There are two variants of CAN message modules: Automatic

Receive/Transmit and Controlled Receive/Transmit.

Using Automatic Receive, the data of the last received CAN message

is always in the input data of the PLC. If a CAN message is received

several times with the same data or quickly changing data, no

distinction can be made in the PLC.

Using Automatic Transmit, the CAN message is transmitted as soon

as something changes in the output data of the message or with an

adjustable time interval.

With Controlled Receive and Controlled Transmit of CAN

messages, the PLC program has direct control over the transmission or

processing of each message via control and status bits.

In addition to the CAN message modules, which each have only one

fixed CAN identifier, random CAN message can also be received via a

Receive channel (Rx-FIFO) and a Transmit channel (Tx-FIFO).

Automatic Receive and Transmit is explained in the following

chapters and does not require any programming. The configuration of

the gateway and the CAN modules is sufficient.

Controlled Receive and Controlled Transmit as well as the application

of the Receive channel and the Transmit channel must be actively

programmed in the PLC. A detailed description can be found in the

manual of the PN/CAN-Gateway Layer 2.

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 8

6.2.1 Automatically receiving CAN messages

In the case of the Automatic Receive of CAN messages, the data of the most recently received CAN

message is always found in the input data. Each configured CAN message has a clear CAN identifier. If

two receive objects with the same CAN identifier are being configured, that results in a configuration

error.

A CAN message always has a fixed data length. In the case of Automatic Receive, CAN messages with 1 to

8 bytes can be configured.

If a CAN message is received that has the correct CAN identifier but a false data length, the message is

rejected, and the data is not forwarded to the PLC!

CAN messages with differing data lengths can be processed with the receiving channel (Rx-FIFO) or with

the receive module "RX 0-8 Bytes, controlled".

6.2.2 Automatically transmitting CAN messages

In the case of Automatic transmission of a CAN message, a message is always

sent to the CAN bus when the output data of the module changes. Each

configured CAN message has a unique CAN identifier.

The repetition time enables a cyclic transmission of the CAN message with the actual data bytes.

In the case of automatic transmission, CAN messages with 1 to 8 bytes can be configured. The

transmission of CAN messages with changing data lengths using the same CAN-Identifier can be carried

out with the transmission channel (Tx-FIFO) or with the transmit module "TX 0-8 Bytes, controlled".

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 9

7Assign a PROFINET device name to the PN/CAN gateway

When the configuration of the PN/CAN gateway in the PROFINET Engineering Tool is complete, it can

be imported into the PLC.

So that the PN/CAN gateway can be found by the PROFINET controller, the PROFINET device name must

be assigned to the PN/CAN gateway. To do this, use the "Assign device name" function which you can

access with the right mouse button or in the Online menu when the PN/CAN gateway is selected.

Use the "Update list" button to search the network for PROFINET stations. With "Assign Name" the

PROFINET device name can be assigned to the device.

The clear identification of the PN/CAN gateway is ensured here by the MAC address of the device. The

MAC address of the device is on the front of the PN/CAN gateway.

If the PN/CAN gateway has been assigned the correct PROFINET device name, it is recognized by the PLC

and configured. When the configuration has run correctly, the blue "Mode" LED should blink.

To set the PROFINET name, the Helmholz “IPSet” Tool can also be used, which can be

downloaded free of charge from the Helmholz website. Scan the following QR code to

download “IPSet” Tool

Quickstart Guide PN/CAN-Gateway CAN Layer 2 | Version 4 | 06.10.2023 10

8Programming in the PLC

No handling blocks are required for operation of the PN/CAN gateway in the PLC. The control and status

query of the PN/CAN gateway can be carried out directly via the I/O image.

To start the example project, the value 3 must be written into the "Control" output word to switch to

normal operation.

8.1 Control (2 bytes outputs)

Byte/bit 7 6 5 4 3 2 1 0

Out 0 - Reset - - - - - -

Out 1 - - - - - - Mode

The mode bits are used for the status control of the PN/CAN gateway.

INIT (0) = CAN controller is at the bus, no messages are transmitted, received messages are discarded;

outputs/inputs are set to zero; FIFOs are deleted. The INIT (0) status is automatically active in the event of

a PROFINET network cancellation or stoppage of the PLC.

PASSIV (1) = CAN Controller is online; received messages are discarded, no messages are transmitted;

error counters are transmitted to the PLC; controlled transmission modules can be operated; data from

automatic receiver modules remain frozen

RX-Only (2) = Only the CAN reception is processed. No CAN messages are transmitted.

RX-TX (3) = Normal operation with transmitter and receiver.

To change to the desired operating mode, it is permitted to directly activate the desired mode.

8.2 Status (6 bytes input)

Byte/bit 7 6 5 4 3 2 1 0

In 0 1= Gateway

ready

1 = Reset

carried out - - - - - -

In 1 Error code for configuration errors - - Mode status

In 2 CAN receive error counter

In 3 CAN transmit error counter

In 4+5 first plug point with configuration error

The two mode status bits show the status of the PN/CAN gateway. Principally, an attempt is made to

activate the status requested in the mode of the control word. However, this can be prevented by

configuration errors.

Error codes of configuration errors: see manual

CAN receive error counter: Error counter of the CAN controller

CAN transmit error counter: Error counter of the CAN controller

First plug point with configuration error: In connection with the error code for configuration errors,

this value indicates the plug point of the first module with a configuration error.

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