Seneca Z-KEY MBUS User manual

ORIGINAL INSTRUCTIONS
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. [phone] Fax [phone]
www.seneca.it

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
Rev. 1
Page 2
Introduction
The content of this documentation refers to products and technologies described in it.
All technical data contained in the document may be changed without notice.
The content of this documentation is subject to periodic review.
To use the product safely and effectively, read the following instructions carefully before use.
The product must be used only for the use for which it was designed and manufactured: any other use is under
the full responsibility of the user.
Installation, programming and set-up are allowed only to authorized, physically and intellectually suitable
operators.
Set-up must be performed only after correct installation and the user must follow all the operations described in
the installation manual carefully.
Seneca is not responsible for failures, breakages and accidents caused by ignorance or failure to apply the
stated requirements.
Seneca is not responsible for any unauthorized modifications.
Seneca reserves the right to modify the device, for any commercial or construction requirement, without the
obligation to promptly update the reference manuals.
No liability for the contents of this document can be accepted.
Use the concepts, examples and other content at your own risk.
There may be errors and inaccuracies in this document that could damage your system, so proceed with caution,
the author(s) will not take responsibility for it.
Technical specifications are subject to change without notice.
CONTACT US
Technical support
[email protected]
Product information
[email protected]

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
Rev. 1
Page 3
Document revisions
DATE
REVISION
NOTES
AUTHOR
05/09/2022
0
First revision
Aligned with firmware 109 revision
MM
13/03/2023
1
Aligned the chapter “MAPPING OF THE TAG AREA (HOLDING REGISTERS)”
with the firmware 110 revision.
MM
This document is the property of SENECA srl.
Copies and reproduction are prohibited unless authorised.

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
Rev. 1
Page 4
TABLE OF CONTENTS
INTRODUCTION...........................................................................................................5
DESCRIPTION..........................................................................................................................................................................5
COMMUNICATION PORT SPECIFICATIONS.........................................................................................................................7
APPLICATION FIELDS ................................................................................................8
CONNECTION WITH A PLC ....................................................................................................................................................8
CONNECTION WITH A SCADA ..............................................................................................................................................9
ETHERNET PORT......................................................................................................10
STEP BY STEP GUIDE FOR THE FIRST ACCESS TO THE WEBSERVER ............10
WEBSERVER DEVICE CONFIGURATION................................................................12
ACCESS TO THE WEB SERVER..........................................................................................................................................12
WEBSERVER SECTIONS......................................................................................................................................................13
“STATUS” SECTION .............................................................................................................................................................14
“SETUP” SECTION................................................................................................................................................................15
SAVING A CONFIGURATION ON A FILE.........................................................................................................................17
IMPORTING A CONFIGURATION FROM A FILE.............................................................................................................18
“M-BUS DEVICES” SECTION ...............................................................................................................................................19
REPLACEMENT OF AN M-BUS DEVICE .........................................................................................................................19
MANUAL ADDITION OF AN M-BUS DEVICE ...................................................................................................................20
“SCAN M-BUS” SECTION.....................................................................................................................................................21
SCANNING THE M-BUS....................................................................................................................................................21
ADDITION OF AN M-BUS DEVICE AND YOUR TAGS ....................................................................................................22
"TAG SETUP" SECTION .......................................................................................................................................................23
“UPDATE” SECTION.............................................................................................................................................................23
FIRMWARE UPDATE ........................................................................................................................................................24
DATABASE UPDATE.........................................................................................................................................................24
SUPPORTED MODBUS COMMUNICATION PROTOCOLS .....................................24
SUPPORTED MODBUS FUNCTION CODES........................................................................................................................24
MODBUS REGISTER MAPPING ...............................................................................25
MAPPING OF THE TAG AREA (HOLDING REGISTERS)....................................................................................................26
MAPPING OF THE DIAGNOSTIC AREA (HOLDING REGISTERS).....................................................................................29
RESETTING TO FACTORY CONFIGURATION ........................................................30

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
Rev. 1
Page 5
INTRODUCTION
ATTENTION!
This user manual extends the information from the installation manual to the configuration of the
device. Use the installation manual for more information.
ATTENTION!
In any case, SENECA s.r.l. or its suppliers will not be responsible for the loss of data/revenue or
consequential or incidental damages due to negligence or bad/improper management of the device,
even if SENECA is well aware of these possible damages.
SENECA, its subsidiaries, affiliates, group companies, suppliers and distributors do not guarantee that
the functions fully meet the customer's expectations or that the device, firmware and software should
have no errors or operate continuously.
ATTENTION!
Button PS1 is not used at the moment in the Z-KEY-MBUS instrument.
DESCRIPTION
The Z-KEY-MBUS / R-KEY-MBUS products autonomously read the registers of the devices on the Meter Bus
(M-BUS) and make them available for access via the serial ports, the USB port (Z-KEY-MBUS only) or via the
ethernet port using the Modbus RTU or Modbus TCP-IP protocols (Holding Register-type registers).
Seneca devices can be connected to a maximum of 25 M-BUS devices and can manage up to 500 M-BUS
variables (tags) (since an M-BUS variable can occupy up to 2 Modbus registers, the device makes available up
to 1000 Modbus registers (to which 32 Modbus diagnostic registers must be added).
To configure the device, the integrated webserver can be used without the need for external software.

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
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Page 6
Below are the connection configurations working simultaneously for both models:

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
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COMMUNICATION PORT SPECIFICATIONS
ETHERNET COMMUNICATION PORT
Type
Ethernet 100 baseT RJ45 front
Configuration
Through integrated Webserver
Industrial communication protocol
Modbus TCP-IP server (max 8 simultaneous clients)
Ethernet device search
Through Seneca Discovery software
Factory address
Static address 192.168.90.101
RS485/RS232 SERIAL COMMUNICATION PORTS (Z-KEY-MBUS ONLY)
Number of ports
2
Type
COM#1 RS485 port for IDC10 connector
Terminal COM#2 RS485/RS232 port
Baud Rate
From 1200 to 115200 bit/s
Protocol
Modbus RTU Slave
RS485/RS232 SERIAL COMMUNICATION PORTS (R-KEY-MBUS ONLY)
Number of ports
1
Type
Terminal RS485/RS232 port
Baud Rate
From 1200 to 115200 bit/s
Protocol
Modbus RTU Slave
USB COMMUNICATION PORT (Z-KEY-MBUS ONLY)
Number of ports
1
Type
Driver Windows/Linux Virtual Com CDC standard
Protocol
Modbus RTU Slave
Configuration
Not modifiable 38400 bit/s, 8 bits, No parity, 1 stop bit, station
address 1
METER BUS COMMUNICATION PORT
Number of ports
1
Number of maximum Slave MBUS
25
Baud Rate
From 300 to 38400 bit/s

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
Rev. 1
Page 8
APPLICATION FIELDS
CONNECTION WITH A PLC
The most classic sphere of application is the Z/ R-KEY-MBUS connection with a PLC, in this case it is sufficient
for the PLC to support one of the following protocols:
▪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:

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
Rev. 1
Page 9
CONNECTION WITH A SCADA
To connect a SCADA to the Z/ R-KEY-MBUS gateway, the SCADA must support at least one of the following
protocols:
▪MODBUS RTU Master (via RS232 or RS485)
▪MODBUS TCP-IP Client (via Ethernet)
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:

User Manual
Z-KEY-MBUS
R-KEY-MBUS
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY
BE REPRODUCED WITHOUT PRIOR PERMISSION.
www.seneca.it
Doc: MI-00592-IT
Rev. 1
Page 10
ETHERNET PORT
The factory configuration of the Ethernet port is:
STATIC IP: 192.168.90.101
SUBNET MASK: 255.255.0.0
GATEWAY: 192.168.90.1
Multiple devices must not be inserted on the same network with the same static IP.
If you want to connect multiple devices on the same network, you need to change the IP address configuration
using the Webserver or the Seneca Discovery software.
ATTENTION!
DO NOT CONNECT 2 OR MORE FACTORY-CONFIGURED DEVICES ON THE SAME ETHERNET
NETWORK, OR THE DEVICE WILL NOT WORK (192.168.90.101 IP ADDRESS CONFLICT)
If the addressing mode with DHCP is activated and an IP address is not received within 2 minutes, the device
will set an error IP address such as:
169.254.x.y
Where x.y are the last two values of the MAC ADDRESS.
STEP BY STEP GUIDE FOR THE FIRST ACCESS TO THE WEBSERVER
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.
Locate the Z/R-KEY-MBUS device (factory default address 192.168.90.101):