ModBus-MBus-Gateway

Installation and operating manual

Firmware version 1.0x,

May 2011

Installation and operating manual KT-Elektronik

Warranty

We permanently enhance our products, therefore we reserve the right to make changes to our products at any time and without prior notice.

We take no responsibility for the accuracy or completeness of this manual. No liability can be accepted for the use of our products for a buyer specific purpose. Buyer claims, especially claims for damages including lost profits or other financial losses are excluded. This does not apply if the damage caused by intent or gross negligence. In case of negligent violations of major contractual obligations, our liability is limited to the foreseeable damage

Security advices

Only qualified personnel that is familiar with installation and commissioning of this product is allowed to mount the device and put it into operation. Appropriate shipping and storage are assumed.

The product is designated for use in heavy current equipment. Installation and maintenance have to be performed according to the corresponding safety regulations.

Contents

Installation......................................................................................................................................................................................

3

Mounting................................................................................................................................................................................

3

Electrial connecting................................................................................................................................................................

3

Control system communication.....................................................................................................................................................

4

Baud rate...............................................................................................................................................................................

4

Addressing.............................................................................................................................................................................

4

Addressing at delivery...........................................................................................................................................................

4

Addressing by slave device TROVIS 5573, SOL3-1, SOL3-7 and WPR3............................................................................

4

Address change in stand-alone operation ............................................................................................................................

4

Connection to the control system BMS.........................................................................................................................................

4

Connection to the slave device.....................................................................................................................................................

4

Connection to MBus......................................................................................................................................................................

4

Display and operation ...................................................................................................................................................................

5

LED status ............................................................................................................................................................................

5

Updating the firmware...................................................................................................................................................................

6

Configuration using 5012Config....................................................................................................................................................

6

Technical specification...................................................................................................................................................................

7

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KT-Elektronik ModBus-MBus-Gateway

The ModBus-MBus-Gateway serves to integrate M-Bus meters into a control system in networks of HVAC systems.

With the ModBus-MBus-Gateway convenient connection of heat meters, electric meters and water meters is possible. You can connect up to 6 meters according to EN 1434-3.

The ModBus-MBus-Gateway converts the scanned or acquired data in Modbus data. Modern control systems such as

"TROVIS LEITTECHNIK" by SAMSON visualize and monitor the meter data for billing, for example.

Operation of the ModBus-MBus-Gateway: data from up to 6 meters configured are read cyclically via MBus from meters and stored in an internal memory of the ModBus-MBus-Gateway. A control system can read the last temporarily stored meter data via Modbus from the ModBus-MBus-Gateway.

Additional information is available at http://www.KT-Elektronik.de.

Installation

Mounting

The ModBus-MBus-Gateway is to snap on a DIN rail (EN 50022) by using universal base.

Electrial connecting

The ModBus-MBus-Gateway is to be connected to RJ45 or RJ12 patch cables and terminals. All connectivity options are described on the front panel.

The connected lines should be layed separately from mains voltage wires.

The supplied RJ45 patch cables shall not be adjusted in length.

Slave devices M-Bus devices

Control system - BMS

2 wire RS485

EB_11997_ModBus-MBus-Gateway_EN001

Mains

230 V AC

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Installation and operating manual KT-Elektronik

Control system communication

Baud rate

The baud rate of the interface to the control system (BMS) is automatically detected and adjusted by the ModBus-MBus-

Gateway. It will support 9600 and 19200 baud.

Addressing

Das Modul ist immer unter der globalen Stationsadresse 254 (FE-hex) im 8-Bit-Stationsadressmodus ansprechbar. Im

16-Bit-Stationsadressmodus gilt die Stationsadresse 65534 (FFFE-hex).

The module is always accessible via the global station address 254 (FE hex) in the 8-bit addressing mode. The station address 65534 (FFFE hex) applies to 16-bit addressing mode.

Addressing at delivery

When delivered, a class derived from the serial number 8-bit address is set. The station address is the low two digits of the serial number. A special case of this rule is any serial number with significant digits "00" in this case, the station address to

"100" set.

Addressing by slave device TROVIS 5573, SOL3-1, SOL3-7 and WPR3

The ModBus-MBus-Gateway automatically takes the address from the slave device. In the worst case, the acquisition of the station address of the slave device takes a few minutes to complete because all station addresses in the supported addressing modes and all supported baud rates are successively tested for recognition of a slave device.

Address change in stand-alone operation

Through two holding registers may be adjusted an 8-bit station address or a 16-bit address of the ModBus-MBus-Gateway.

The last address written determines the addressing mode of the device.

Connection to the control system BMS

For connection to an RS485 two-wire network to a building management system BMS the ModBus-MBus-Gateway provides a potential free RS-485 interface with auto phase switching. The RS485 two-wire network can be connected to a two-pole screw terminal or to an RJ12 jack using RJ12 patch cord. Compliance with a specific polarity is not required.

Connection to the slave device

For connectivity to a slave device the ModBus-MBus-Gateway provides an RS-485 interface through a two-pole screw terminal and a TTL RS-232 port via an RJ45 socket.

It is just intended to connect to one slave device. The communication parameters of slave device by the MBus ModBus gateway automatically calculated and applied.

A recognized slave device is indicated by the Status LED.

The station address is automatically transferred from the slave device, the station address set in the ModBus-MBus-Gateway is ignored.

Holding registers and coils of ModBus-MBus-Gateway and supported slave devices are located in different areas.

Connection to MBus

For connectivity to Mbus devices provides the ModBus-MBus-Gateway an interface to a two-pole screw terminal.

The MBus ModBus gateway is intended for the connection of up to 6 MBus loads.

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KT-Elektronik ModBus-MBus-Gateway

Display and operation

The device has no controls. The device settings are exclusively via a Modbus connection changed. In stand-alone operation, in which no slave device is connected, the setting of the ModBus-MBus-Gateway has to make by control system BMS. If one slave device is connected, the setting of the MBus meter configuration can be adjust by using the operation of slave device.

To indicate operating state and function are 10 luminous dots (LEDs) are located on the front panel of the ModBus-MBus-

Gateway.

LED status

An LED lights up when the value specified for this LED is active.

Send to Slave (RS485)

Receive from Slave (RS485)

Send to Slave (RS232/TTL)

Receive from Slave (RS232/TTL)

Send to Mbus

Receive from Mbus

Operation, Mode

Send to BMS (RS485)

Receive from BMS (RS485)

Status (On → Slave recognized )

There is a special feature of the LED 'Power' in the mode 'update'. In this mode, the LED lights with short breaks.

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Installation and operating manual KT-Elektronik

Updating the firmware

To perform an firmware upgrade of the ModBus-MBus-Gateway, use the software BootManager. At the time of the firmware update it is not allowed to connect one slave device.

A firmware upgrade for a connected slave device can be carried out using the software BootManager. In this case the

ModBus-MBus-Gateway provides a transparent connection between BootManager and slave device.

Configuration using 5012Config

For the configuration of the connected MBus meters, the software 5012Config is available. This tool can be adjust meter address, meter type, meter read interval and meter schedule. Also may consider MBus meter data read by the ModBus-

MBus-Gateway.

The software 5012Config is available in German language only.

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KT-Elektronik ModBus-MBus-Gateway

Technical specification

Interfaces

Operating voltage

Ambient temperature

Type of protection

Protection class

Pollution degree

Overvoltage category

Humidity class

Housing material

Standard

Noise immunity

Noise emission

Mounting

Terminals

Housing L x W x H (mm)

Assembly

Weight

1 x control system interface BMS: RS485 2 wire network, potential free,

9600 baud, 19200 baud (automatically)

8 bit, no parity, 1 stop bit

MODBUS RTU

1 x slave interface: RS-485 2 wire network, slave device potential,

9600 baud, 19200 baud (automatically)

8 bit, no parity, 1 stop bit

MODBUS RTU

only for TROVIS 5573, SOL3-1, SOL3-7 and WPR3

1 x MBus interface (meter network), 2 wire network, potential free

meter network (M-Bus) according to EN 1434-3 or adapted

85 to 250 V, 48 to 62 Hz, max. 1,8 W

0 to 40 °C (operation),

–10 °C to 60 °C (storage and transport)

IP 20 according to IEC 529

II according to VDE 0106

2 according to VDE 0110

II according to VDE 0110

F according to VDE 40040

PA6 (base), PA66 (housing), PC (plate)

EN 60730, EN 60950 according to EN 61000-6-1 according to EN 61000-6-3

DIN rail according to EN 50022

RJ45, RJ12, 3x plug-in terminals

94 x 96 x 60

Manual, RJ45 patch cable and RJ12 patch cable approx. 0,15 kg

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KT-Elektronik GmbH

Berlinickestrasse 11

12165 Berlin - Germany

Telephone: (030) 79 08 05-0

Telefax: (030) 79 08 05-20

E-mail: [email protected]

Internet: http://www.kt-elektronik.de

EB_11997_ModBus-

MBus-

Gateway_EN001