Helmholz 700-671-PNC01 User manual

Helmholz GmbH & Co. KG | Hannberger Weg 2 | 91091 Großenseebach | Germany 06.10.2023
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Quickstart Guide
PN/CAN Gateway CAN Layer 2
Order number: 700-671-PNC01
Version
en
4

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

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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
1
-
2
CAN Low
3
CAN GND
4 -
5
-
6
-
7
CAN High
8
-
9 -

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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.

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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.

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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.

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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".

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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

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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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9LED-based diagnosis
MODE
Off No power supply or device defective
Blue on PN/CAN gateway is correctly configured via PROFINET
Mode 3 – Transmission and receiving active
Flashing blue PN/CAN gateway is correctly configured via PROFINET
Mode is 0, 1, or 2
Red on No connection with PROFINET controller (PLC)
Flashing red Connection with the PROFINET controller (PLC) exists, but a configuration error exists
CAN RX
Flashing green CAN frame is received without errors
Red
CAN bus error in the recipient or
PN/CAN gateway hasn't been configured yet or
No connection
CAN TX
Flashing green CAN frames are being transmitted
Red
Transmission not possible (e.g. false Baud rate, CAN bus disrupted) or
PN/CAN gateway has not yet been configured or
No connection
BF/SF
yellow MODE flashes red: Configuration error
MODE on blue: CAN alarm active
red PROFINET network error

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10 Technical data
Order no. 700-671-PNC01
Name
PN/CAN gateway, PROFINET/CAN Layer 2
Scope of delivery
PN/CAN gateway with power plug
Dimensions (D x W x H)
35,5 x 83,5 x 76 mm
Weight
Approx. 160 g
PROFINET interface (X1)
Number
1
Connection
2x RJ45, integrated switch
Transmission rate
100 Mbps full duplex
Protocol PROFINET IO device as defined in IEC 61158-6-10
I/O image size max. 1440 bytes input / 1440 bytes output data
Features PROFINET Conformance Class C, Media redundancy (MRP client), Automatic
addressing, Topology detection (LLDP, DCP), Diagnosis alarms
CAN interface
Number 1
Type ISO/DIN 11898-2 CAN High-speed physical layer
Connection 9-pin D-sub male connector
Protocol CAN 2.0A (11-bit identifier) or CAN 2.0B (29-bit identifier)
Baud rate 10, 50, 100, 125, 250, 500, 800, 1000 kbps
USB interface
Protocol Full-speed USB 2.0 device
Connection USB-C
Electrically isolation 500 V
Status indication
Function status
4 LEDs (bi-colored)
Ethernet status
4 LEDs
Power supply
Operating voltage
24 V DC, 18 … 30 V DC
Current draw
Max. 150mA
Power dissipation
Max. 4 W
Ambient conditions
Ambient temperature 0° C to 60° C
Transport and storage temperature -20° C to 80° C
Relative humidity 95% without condensation
Protection rating IP 20
Mounting position As desired
Compliance
Approvals CE
RoHS yes
REACH yes

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