Intesis
Box
®
Modbus Server
– M-Bus
User Manual r1.1 EN
URL
tel
http://www.intesisbox.com
[email protected]
+34 938047134
© Intesis Software S.L.U. - All rights reserved
IntesisBox
is a registered trademark of Intesis Software SLU
13/20
Powering the device
A power supply working with any of the voltage range allowed is needed (check section 6). Once connected the RUN
led (Figure above) will turn on.
WARNING!
In order to avoid earth loops that can damage the gateway and/or any other equipment connected to it,
we strongly recommend:
•
The use of DC power supplies, floating or with the negative terminal connected to earth.
Never use a
DC power supply with the positive terminal connected to earth
.
•
The use of AC power supplies only if they are floating and not powering any other device.
Connection to M-Bus
Connect the M-Bus bus to connectors A3 (+) and A4 (-
) of gateway’s PortA.
Remember that the IntesisBox provides 36VDC M-Bus voltage to the bus, acting as a M-Bus level converter as well.
In case there is no response from the M-Bus device(s) to the frames sent by IntesisBox, check that they are operative
and reachable from the network connection used by IntesisBox. You can use an EIA-485-to-USB converter and a M-
Bus Master software (such as MBSheet or similar) to double check the M-Bus installation.
Connection to Modbus
4.3.1 Modbus TCP
Connect the communication cable coming from the Modbus TCP Master to the Ethernet port of IntesisBox. The cable
to be used shall be a straight Ethernet UTP/FTP CAT5 cable.
4.3.2 Modbus RTU
In case of using an EIA485 connection, connect the communication cable coming from the Modbus network to the
port marked as Modbus of IntesisBox. Connect the EIA485 bus to connectors B2 (+), B1 (-) and A1 or A2 (SNGD) or
to connectors B1 (-
), B2 (+) and B3 (SNGD) of gateway’s PortB. Respect the polarity.
Remember the characteristics of the standard EIA485 bus: maximum distance of 1200 meters, maximum 32 devices
connected to the bus, and in each end of the bus it must be a termination resistor of 120 Ω. The gateway has an
internal bus biasing circuit that incorporates the termination resistor. If you install the gateway in one of the ends of
the bus, then do not install an additional termination resistor in that end.
In case of using an EIA232 connection, connect the serial cable EIA232 coming from the external serial device to the
EIA232 connector of gateway’s PortB. This is a DB9 male (DTE) connector in which only the lines TX, RX and GND
are used. Details of the pinout can be seen in the user's manual. Respect the maximum distance of 15 meters.
Connection to the configuration tool
This action allows the user to have access to configuration and monitoring of the device (more information can be
found in the configuration tool User Manual). Two methods to connect to the PC can be used:
•
Ethernet:
Using the Ethernet port of IntesisBox.
•
USB:
Using the console port of IntesisBox, connect a USB cable from the console port to the PC.
