Seneca R-KEY-MBUS User manual

INSTALLATION MANUAL
R-KEY-MBUS
Converter of M-BUS to ModBUS RTU/TCP-IP protocol
EN
MI00563-0-EN 1/6
DOCUMENTATION
SENECA s.r.l.
Via Austria, 26 – 35127 – PADOVA – ITALY
Tel. [phone] - Fax [phone]
For manuals in other languages and the conguration software,visit:
www.seneca.it/products/r-key-mbus

MODULE LAYOUT
LED STATUS LED meaning
M-BUS PWR ON Powered MeterBus interface
Off NON powered MeterBus interface
SERIAL Rx Flashing Data reception on RS485 or RS232 port
SERIAL Tx Flashing Data transmission on RS485 or RS232 port
PWR
ON The device is powered with assigned IP
Flashing IP not assigned
Off The device is switched OFF
M-BUS Tx Flashing Transmission of data packet completed
M-BUS Rx ON No MeterBus packet received / Anomaly on the MeterBus bus
Flashing Reception of data packet completed
SIGNALS VIA LED ON FRONT PANEL
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Dimensions (LxHxD) 53.3 x 90 x 32.2 Weight 80 g Case Self-extinguishing UL94-V0 PC / ABS material
32.2 mm
53.3 mm
mm0,09
WARNING: The full content of this manual must be read before any operation. The module must only be used by
qualied electricians. Specic documentation is available via QR-CODE shown on page 1.
Electrical and electronic waste disposal (applicable in the European Union and other countries with recycling).
The symbol on the product or its packaging shows the product must be surrendered to a collection centre
authorized to recycle electrical and electronic waste.
The module must be repaired and damaged parts replaced by the Manufacturer. The product is sensitive to
electrostatic discharges. Take appropriate measures during any operation.
PRELIMINARY WARNINGS
The word WARNING preceded by the symbol indicates conditions or actions that put the user's safety at risk.
The word ATTENTION preceded by the symbol indicates conditions or actions that might damage the
instrument or the connected equipment. The warranty shall become null and void in the event of improper use or
tampering with the module or devices supplied by the manufacturer as necessary for its correct operation, and if
the instructions contained in this manual are not followed.

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TECHNICAL SPECIFICATIONS
STANDARDS
EN61000-6-4 Electromagnetic emissions, industrial environment.
EN61000-6-2 Electromagnetic immunity, industrial environment.
EN60950-1 Safety.
POWER SUPPLY Voltage: 11 – 40 Vdc, 19 - 28 Vac, 50 - 60 Hz; Absorption: Max p.: 3.8 W.
INSULATION
CONNECTIONS Removable 2-way screw terminals, 5 mm pitch for cable up to 2.5 mm2
RJ45 Ethernet connector
ENVIRONMENTAL CONDITIONS
Operating temperature:
from -25°C to +65°C
Humidity: 10%– 90% non condensing.
Storage temperature: from -30°C to +85°C
Protection rating: IP20
COMMUNICATION PORTS
RS232/RS485: on terminals;
Ethernet (RJ45): 100 Mbit/s, max. distance 100 m with auto switch
PROTOCOLS
MeterBUS, ModBUS TCP server and ModBUS RTU slave.
For more information see the User Manual.
M-Bus PORT
on terminals 1 and 2 (see electrical diagrams)
Number of slaves: 25 Max.
Speed: 300 – 38k4 Baud
Voltage: 28 Vdc
Maximum length: 3000 m
CONFIGURATION
Conguration and FW update via webserver
DIP-switch
ASSEMBLY On IEC EN60715 rail or wall xing
Restart button:
The button is located between the SW1 DIP-switch and the Ethernet port.
To reboot the device, just keep the button pressed for 5 seconds.
Release it when all the LEDs light up.
MeterBUS RS485/RS232
Ethernet
POWER
SUPPLY
1500 Vdc
500 Vdc

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FIRST STARTUP AND IP CONFIGURATION
At the rst startup the IP address is congured in static mode with address 192.168.90.101
By default the SW2 DIP-switch selectors are set to OFF.
In the case of conguration with an IP address obtained from DHCP, and if a DHCP server is not present in your
network, the device, after 5 minutes from startup, will initialize with the IP address: 169.254.x.y where the x and y
values are the last two MAC address digits (see product side label).
N.B.: through the software for the SDD (SENECA Discovery Device) Windows PC, downloadable for free from the
www.seneca.it/prodotti/sdd site, it is possible to easily identify the device on the network and view / change the IP
address in a few steps (see USER manual for details).
SW1 DIP-SWITCH SETTINGS
Through DIP-SWITCH-SW1 it is possible to set the IP conguration of the device:
DESCRIPTION DIP 1 DIP 2
To obtain the conguration from the Flash memory, both SW1
DIP switch selectors must be set to OFF
To reset the device to factory settings both SW1 DIP switches
must be set to ON
To force the device’s IP address to the standard value of
SENECA ethernet products: 192.168.90.101
Reserved
The DIP-switch settings are read only at boot time. At each change, perform a restart.
DEVICE CONFIGURATION
R-KEY-MBUS can be fully set up via integrated web server. The product programming and/or conguration tools,
as well as all the manuals, can be downloaded using the QR-CODE on the cover. For further information, refer to
the USER manual.
WEB SERVER
To access the maintenance Web Server with the factory IP address above, use the following credentials:
Account User: admin; Password: admin

POWER SUPPLY MeterBUS PORT RS485 SERIAL PORT RS232 SERIAL PORT
The power supply source must
be protected from any module
malfunctions using appropriately-sized
safety fuses.
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ELECTRICAL CONNECTIONS
10
11
Vac / Vdc
Vac / Vdc
MeterBUS
MeterBUS
A (+)
B (-)
GND
1
2
3
4
5
CONNECTION STANDARDS
MeterBUS is a non-polarized bus.
For the connection it is possible to use a two-wire shielded telephone cable or an unshielded duplex cable following the
indications in the table.
If a shielded cable is used, this must be connected to earth only from the R-KEY-MBUS side.
Type of
installation
Maximum
speed
Connection
maximum distance
Connection
total length Type of cable
Small in house 38400 < 350 m < 1000 m 0.5 mm2, R < 30 Ω
Large in house 9600 < 350 m < 3000 m 0.5 mm2, R < 30 Ω
Small wide area 2400 < 1000 m < 3000 m 1.5 mm2, R < 90 Ω
5
6
8
9
7
GND
RTS
CTS
Rx
Tx
CAUTION
On rst start-up the module must be supplied without any interruptions for at least 72 hours to charge the internal
batteries. Switch the module off with the PS1 button before connecting inputs and outputs.
To meet the electromagnetic immunity requirements:
- use shielded signal cables;
- connect the shield to a preferential instrumentation earth system;
- separate shielded cables from other cables used for power installations (transformers, inverters, motors, etc...).

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INSTALLATION ON DIN-IEC EN 60715 RAIL
Installation: Position the device on the OMEGA rail resting the upper teeth from top to bottom.
Push the lower part towards the rail until the locking system engages.
Removal: Turn off the module, with the help of a slotted screwdriver unlock the locking system.
WALL MOUNTING
Installation: The device is provided with a hole for wall-mounting. Install the device after having prepared the
dowel and relative screw on the wall.
Removal: Turn off the module, exert a slight upward pressure and move the product away from the wall.
WARNING
The device must be installed at a maximum height of 2 meters from the oor.
CONTACT INFORMATION
Technical support [email protected] Product information [email protected]
This document is the property of SENECA srl. Copies and reproduction are prohibited unless authorised.
The content of this document corresponds to the described products and technologies.
Stated data may be modied or supplemented for technical and/or sales purposes.