Table of Contents
Related Manuals for Seneca Z-KEY MBUS
Summary of Contents for Seneca Z-KEY MBUS
- Page 1 USER MANUAL Z-KEY MBUS R-KEY MBUS MODBUS (TCP-IP / RTU) TO M-BUS (METER BUS) GATEWAY SENECA S.r.l. Via Austria 26 – 35127 – Z.I. - PADOVA (PD) - ITALY Tel. +39.049.8705355 – 8705355 Fax +39 049.8706287 www.seneca.it ORIGINAL INSTRUCTIONS...
- Page 2 SENECA's liability in relation to its products is governed by the general conditions of sale, which can be downloaded from www.seneca.it. Neither SENECA nor its employees, within the limits of applicable law, will in any case be liable for any lost profits and/or sales, loss of data and/or information, higher costs incurred for goods and/or replacement services,...
- Page 3 Aligned the chapter “MAPPING OF THE TAG AREA (HOLDING REGISTERS)” with the firmware 110 revision. 20/03/2025 Aligned with firmware 118 revision This document is the property of SENECA srl. Copies and reproduction are prohibited unless authorised. www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY...
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Page 4: Table Of Contents
MODBUS REGISTER MAPPING ................26 MAPPING OF THE TAG AREA (HOLDING REGISTERS) ....................26 MAPPING OF THE DIAGNOSTIC AREA (HOLDING REGISTERS) ..................30 RESETTING TO FACTORY CONFIGURATION ............. 31 www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 4... -
Page 5: Introduction
KEY device). Seneca devices can be connected to a maximum of 25 M-BUS slave devices and can manage up to 500 M- BUS variables (tags) (since an M-BUS variable can occupy up to 4 Modbus registers, the device makes available up to 2000 Modbus registers (to which 32 Modbus diagnostic registers must be added). - Page 6 Z-KEY-MBUS User Manual R-KEY-MBUS Below are the connection configurations working simultaneously for both models: www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 6 BE REPRODUCED WITHOUT PRIOR PERMISSION.
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Page 7: Application Fields
MODBUS RTU Master (via RS232 or RS485) ▪ ▪ MODBUS TCP-IP Client (via Ethernet) The following example is related to Z-KEY-MBUS but is interchangeable with R-KEY-MBUS: www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 7 BE REPRODUCED WITHOUT PRIOR PERMISSION. -
Page 8: Connection With A Scada
▪ Practically all SCADAs support these protocols. Virtually there are no limits to the number of Z/ R-KEY-MBUS gateways that can be connected to a SCADA: www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 8... -
Page 9: Ethernet Port
STEP 1: POWER AND CONNECT THE ETHERNET PORT STEP 2: SENECA DISCOVERY DEVICE SOFTWARE INSTALLATION Download (from the Seneca website in the Z/R-KEY-MBUS section) the Seneca Discovery Device software. STEP 3: SEARCH FOR THE DEVICE Run the software and press the “SCAN” button: the software will search for the Ethernet devices in the network. - Page 10 THE WEB BROWSERS WHICH HAVE BEEN TESTED FOR COMPATIBILITY WITH THE DEVICE WEBSERVER ARE: MOZILLA FIREFOX AND GOOGLE CHROME. THEREFORE, THE OPERATION WITH OTHER BROWSERS IS NOT GUARANTEED www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 10...
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Page 11: Webserver Device Configuration
Access to the web server takes place using a web browser and entering the IP address of the device. To find out the IP address of the device, use the "search" function of the "Seneca Discovery Device" software (see chapter 4). -
Page 12: Webserver Sections
It is the section that allows adding/modifying the tags (that is the variables) of the M-bus devices connected to the gateway. Update It is the section that allows updating the firmware and database for the manual addition of the M-BUS meters. www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 12... -
Page 13: Status" Section
50 tags per page maximum can be displayed, the maximum number of pages is 10. Some basic information among which the device interrogation loop time is displayed in the top part of the page. www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 13 BE REPRODUCED WITHOUT PRIOR PERMISSION. -
Page 14: Setup" Section
RESPONSE MODE WHEN RESOURCE IN FAIL (default: EXCEPTION) Selects what answer to give if the M-BUS meter connected does not answer the requests. It is possible to choose between: www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 14 BE REPRODUCED WITHOUT PRIOR PERMISSION. - Page 15 Sets the communication port for the web server. IP CHANGE FROM DISCOVERY (default: Enabled) Selects whether or not the device accepts the IP address change from the Seneca Discovery Device software. PORT #1 SLAVE MODBUS ADDRESS (default: 1) Selects the Modbus slave station address of COM #1 port (on IDC10 connector for Z-KEY-MBUS, on terminal for R-KEY-MBUS).
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Page 16: Saving A Configuration On A File
M-BUS DEVICE It can be saved to a file this way: Go to the Setup section and select the file to save, press the "Save config" button www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 16... -
Page 17: Importing A Configuration From A File
This section shows the M-BUS devices inserted in the gateway. It is possible to delete all the tags related to a device by deleting the device from the list of devices. www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY... -
Page 18: Replacement Of An M-Bus Device
By means of the "ADD" button, instead, it is possible to access the addition of an M-BUS device in manual mode. Z/R-KEY-MBUS has a database growing continuously with the devices of the main brands. www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY... -
Page 19: Scan M-Bus" Section
As devices are found they appear on the screen, for example: The scan remains saved in the flash memory of the device until a new scan is requested. www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 19 BE REPRODUCED WITHOUT PRIOR PERMISSION. -
Page 20: Addition Of An M-Bus Device And Your Tags
DATA POINT NUMBER Represents the number of the variable in the datagram TYPE Represents the type of the variable, the parameters are also available: www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 20 BE REPRODUCED WITHOUT PRIOR PERMISSION. - Page 21 This is an optional field used when additional information is needed that is not directly included in the DIF. It can contain additional details such as Storage number, Tariff, historical memory indication (previous period), etc. VIFE (Value Information Field Extension) www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 21...
- Page 22 To verify the addition of the M-BUS device you are automatically returned to the M-BUS DEVICES section: Added tags can be seen in the instant view (Status section) and/or in the Tag Setup section. www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY...
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Page 23: Tag Setup" Section
It is the address of the starting modbus register in the modbus registers TARGET M-BUS DEVICE It is the MBUS device to which the variable is associated www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 23... -
Page 24: Update" Section
TARGET SCALE OFFSET Represents the offset of the scaling “UPDATE” SECTION FIRMWARE UPDATE In order to improve, add, optimize the functions of the product, Seneca releases firmware updates on the device section on the www.seneca.it website Then select the new firmware file and press the "Update firmware" button... -
Page 25: Database Update
User Manual R-KEY-MBUS DATABASE UPDATE Seneca releases new updated Database tool files on the device section of the website www.seneca.it. The Database is used when a new M-BUS device is entered in manual mode. To update the database, select the file and press the "Update Database" button. -
Page 26: Modbus Register Mapping
MAPPING OF THE TAG AREA (HOLDING REGISTERS) Measurement variables from M-BUS are converted into tags accessible from the Modbus bus. The Seneca product will add the new tags in the area as new M-BUS devices or new tags are entered. - Page 27 NUMBER OF HOLDING REGISTER MODBUS REGISTERS 32-BIT SIGNED INTEGER DATA TYPE RANGE -2147483648 / +2147483647 NUMBER OF HOLDING REGISTER MODBUS REGISTERS www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 27 BE REPRODUCED WITHOUT PRIOR PERMISSION.
- Page 28 ADDRESS REGISTER n+1 Least significant part For further information on the type of 32-bit Real data, refer to the following website: https://en.wikipedia.org/wiki/IEEE_754 www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 28 BE REPRODUCED WITHOUT PRIOR PERMISSION.
- Page 29 Occupying 2 modbus registers, the data is represented as follows: ADDRESS REGISTER n Least significant part ADDRESS REGISTER n+1 Most significant part www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 29 BE REPRODUCED WITHOUT PRIOR PERMISSION.
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Page 30: Mapping Of The Diagnostic Area (Holding Registers)
… … … 49031 4x9031 9031 DIAGNOSTIC TAG 481..496 UNSIGNED 16 BIT 49032 4x9032 9032 DIAGNOSTIC TAG 497..500 UNSIGNED 16 BIT www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 30 BE REPRODUCED WITHOUT PRIOR PERMISSION. -
Page 31: Resetting To Factory Configuration
When the device is switched on again, it will start with its factory configuration. ATTENTION! In some models there are 4 dip switches, in this case dip switches 3 and 4 must ALWAYS be kept in the "OFF" state www.seneca.it ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY Doc: MI-00592-2-EN Page 31...
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