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

16.03.2021

 

Phone +49 9135 7380-0 | Fax +49 9135 7380-110 | [email protected] | www.helmholz.de 

Quick Start Guide 

PN/ModbusTCP Coupler 

Order number: 700-159-3MB01 
For firmware V1.00 and above 
 

Version 

en 

3 

Summary of Contents for 700-159-3MB01

Page 1: ...er Weg 2 91091 Großenseebach Germany 16 03 2021 Phone 49 9135 7380 0 Fax 49 9135 7380 110 info helmholz de www helmholz de Quick Start Guide PN ModbusTCP Coupler Order number 700 159 3MB01 For firmware V1 00 and above Version en 3 ...

Page 2: ... Supported ModbusTCP function codes 7 7 Configuration in the TIA Portal 8 7 1 Parameters of the PN ModbusTCP Coupler 8 7 2 Configure ModbusTCP modules 10 7 3 Assign a PROFINET device name to the PN ModbusTCP Coupler 11 8 Status and control via PLC program 12 9 Webinterface of PN ModbusTCP Coupler 13 10 MQTT Publisher 15 10 1 MQTT Publisher Settings 15 10 2 MQTT data format 16 11 Firmware update 17...

Page 3: ...ing 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 f...

Page 4: ...um size of the transmitted data is 1024 bytes of input output data Up to 300 slots for IO modules are available The integration into the PLC engineering tool is made possible by a GSDML file special configuration software isn t necessary In addition to the PROFINET ModbusTCP communication the PN ModbusTCP Coupler also makes an MQTT Publisher available on both network sides In this way the values e...

Page 5: ...aces X1 and X2 are logically separate networks and not physically connected Thus there is a clear separation between the PROFINET network and the ModbusTCP network A network penetration with other functions by the PN MQTT coupler is not possible The configured values are exchanged in the PN ModbusTCP Coupler only as IO data between both network sides 5 Install GSDML file Please download the GSDML ...

Page 6: ...PLC but can also be written All data types are numbered from 0 65535 All data types have their own memory area in the PN ModbusTCP coupler From the point of view of ModbusTCP communication all coils inputs and registers are always available in the PN ModbusTCP coupler So it is always possible to access all data types from address 0 65535 Via the PROFINET configuration the ModbusTCP data can be ass...

Page 7: ...Register 16 Bit Read Holding Register 16 Bit All modules have as parameter the register number Input Register Holding Register or the first bit address Discrete Inputs Coils 6 1 Example of a configuration 6 2 Supported ModbusTCP function codes The PN ModbusTCP Coupler supports the following function codes ...

Page 8: ...a device name and check the IP address on the PROFINET network X1 for the device 7 1 Parameters of the PN ModbusTCP Coupler The parameterization of the PN ModbusTCP Coupler can be done completely via the PROFINET hardware configurator However some parameters for the ModbusTCP network X2 can optionally also be set via the web page e g the IP address of the ModbusTCP server or the DHCP host name ...

Page 9: ...busTCP driver listens Port 502 is always active even if another port is set here Connection watchdog time ms Time in which a ModbusTCP connection is closed when there is no more communication over that connection Range 1 65535 ms Maximum ModbusTCP connections Maximum number of nodes that can establish simultaneous connections with the PN ModbusTCP coupler Register for PROFINET Status Number of the...

Page 10: ...e as parameter the register number Input Register Holding Register or the first bit address Discrete Inputs Coils For the Input Bits and Coils from 8 bits 1 byte up to 256 bits 32 bytes can be addressed together in one slot Addressing of single bits is not possible via the PROFINET PLC the smallest amount is a byte 8 Bits However the bit address can start at any position in the address space of th...

Page 11: ...s selected With the Update list button the network can be browsed for PROFINET participants The PROFINET device name can be assigned to the device with Assign name The unique identification of the PN ModbusTCP Coupler in the PROFINET network is guaranteed by the MAC address of the device The PROFINET MAC address can be read on the front panel of the PN ModbusTCP coupler on the left side at X1 MAC ...

Page 12: ...obtained via DHCP Network cable detected Status byte 2 Number of active connections Control byte 1 Control Bits 7 6 5 4 3 2 1 0 ModbusTCP memory reset coils inputs and registers Disconnect all ModbusTCP connections and prevent connection establishment The PN ModbusTCP coupler starts after successful PROFINET configuration and is immediately in operation after PLC RUN A further release via PLC prog...

Page 13: ... the ModbusTCP configuration can be set in the web interface if this is not specified by the PROFINET configuration When accessing the web interface for the first time a password must be set for the default user admin The password can be adjusted subsequently in the Account menu The Overview web page shows the current settings and status In the upper line there is the menu for further web pages Ca...

Page 14: ...the PROFINET configuration On the ModbusTCP page the data type and the address are also indicated The current value is displayed in brackets On the web page ModbusTCP server settings the IP address and the DNS name of the ModbusTCP network interface can be set as far as these were not fixed by the GSDML configuration ...

Page 15: ...work on both network sides at the same time Since MQTT works slower than the priority PROFINET Modbus TCP communication it may be that not all value changes are transmitted via MQTT but always only the last value state 10 1 MQTT Publisher Settings To be able to distribute data via MQTT in a network an MQTT broker is always required The broker can run anywhere in the network The settings of the MQT...

Page 16: ...cimal bytes for coils and discrete inputs or as a 16 bit decimal number for holding registers and input registers The topic name is formed depending on which network PROFINET X1 or ModbusTCP X2 the MQTT Publisher is activated on On both network interfaces the following MQTT topics can be read additionally ClientID Modules List Contains the list of all topics provided by the PN ModbusTCP coupler vi...

Page 17: ...he button Submit the firmware is trans ferred to the PN ModbusTCP coupler and burned Afterwards the PN ModbusTCP coupler executes a reboot and the new firmware is active During the update process the operation of the PN MQTT Coupler is interrupted Do not switch off the device during the update process 12 Resetting to factory settings Resetting the PN ModbusTCP Coupler to factory settings can be do...

Page 18: ... diagnosis alarms MQTT interface X2 Connection 2x RJ45 integrated switch Protocol ModbusTCP Server Transmission rate 10 100 Mbit s full half duplex Storage size 65536 Coil Bits 65536 Discrete Input Bits 65536 Input Register 65536 Holding Register Supported function codes 1 2 3 4 5 6 15 16 22 23 Status indicator 9 LEDs function status 8 LEDs Ethernet status Voltage supply DC 24 V 18 28 V DC Current...

Page 19: ...e that they match the hardware and software described However we assume no liability for any existing differences as these cannot be fully ruled out The information in this Quick Start Guide is however updated on a regular basis When using your purchased products please make sure to use the latest version of this Quick Start Guide which can be viewed and downloaded on the Internet from www helmhol...

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