PiiGAB M-Bus 900S User manual

Description
User Manual
From Version:
System 2016-09-12
M-Bus Hub 2.02.02
www.PiiGAB.com
PiiGAB M-Bus 900S/T

UNIVERSAL ETHERNET M-BUS GATEWAY 900S/T
Description
User Manual
©PiiGAB Process Information i Göteborg AB
Anders Carlssons gata 7, S-417 55 Göteborg, Sweden
Phone [phone]
All rights reserved.
PiiGAB are registered trademark of Processinformation i Göteborg AB.
Microsoft and Windows are either trademarks or registered trademarks of Microsoft Cooperation in the United States
and other countries. All other trademarks are the property of their respective owners.

Contents
GENERAL......................................................................................................................1
1.1 ABOUT THIS MANUAL ....................................................................................................1
1.2 FUNCTIONAL OVERVIEW ................................................................................................1
1.3 ADVANTAGES AND POSSIBILITIES ..................................................................................1
TECHNICAL STRUCTURE ........................................................................................2
2.1 CONNECTIONS................................................................................................................2
2.1.1 Connections on the upper 18 pin connector ...........................................................2
2.1.2 Connections on the lower 12 pin connector............................................................3
2.2 INDICATIONS..................................................................................................................4
2.3 RESET BUTTON...............................................................................................................5
DESCRIPTION OF THE DIFFERENT CONNECTIONS........................................6
3.1 RELAY,PLINT 1-3...........................................................................................................6
3.1.1 Connection relay.....................................................................................................6
3.2 DIGITAL INPUTS,PLINT 4-7 ............................................................................................6
3.2.1 Connection Digital inputs.......................................................................................7
3.3 RS485, PLINT 8-10.........................................................................................................7
3.4 RS232, PLINT 11-13.......................................................................................................7
3.5 M-BUS SLAVE,PLINT 15-18...........................................................................................8
3.6 POWER,PLINT 19-21......................................................................................................8
3.7 ETHERNET......................................................................................................................8
3.8 M-BUS MASTER,PLINT 22-29.........................................................................................9
THE INTERNAL M-BUS METER............................................................................10
4.1.1 Simple version.......................................................................................................10
4.1.2 Writing..................................................................................................................11
GET STARTED STEP BY STEP ...............................................................................12
5.1 IMPORTANT INFORMATION...........................................................................................12
5.1.1 Hardware address.................................................................................................12
5.1.2 IP-address.............................................................................................................13
5.1.3 TCP/UDP..............................................................................................................13
5.1.4 Port number..........................................................................................................13
5.1.5 Factory settings.....................................................................................................13
5.2 USING PIIGAB M-BUS SETUP WIZARD .......................................................................14
SETTINGS AND PARAMETER DESCRIPTION ...................................................15
6.1 CONFIGURATION..........................................................................................................15
6.1.1 Ethernet Settings...................................................................................................16
6.1.2 DNS name .............................................................................................................16
6.1.3 Dynamic (DHCP) configuration...........................................................................16
6.1.4 Static configuration...............................................................................................17
6.1.5 General Configuration..........................................................................................18
6.1.6 M-Bus Master Output ...........................................................................................18

6.1.7 RS-485 Failsafe.....................................................................................................19
6.1.8 Restart MBusHub..................................................................................................19
6.2 MASTER PORT CONFIGURATION...................................................................................20
6.2.1 Type Serial............................................................................................................20
6.2.2 Type UDP or TCP.................................................................................................21
6.2.3 M-Bus Master options...........................................................................................22
6.3 SLAVE PORT 1-4 CONFIGURATION................................................................................23
6.3.1 Type UDP or TCP.................................................................................................23
6.3.2 Type Serial............................................................................................................23
6.3.3 M-Bus ASCII options ............................................................................................24
6.3.4 Modbus RTU and TCP options.............................................................................24
6.4 ADMINISTRATION ........................................................................................................26
6.4.1 Configuration File ................................................................................................26
6.4.2 Update Software ...................................................................................................27
6.4.3 Security –Change Password ................................................................................27
6.4.4 License..................................................................................................................28
6.4.5 Time and Date.......................................................................................................29
6.4.6 Usage of the clocks. ..............................................................................................30
6.4.7 Reboot PI-900S/T..................................................................................................30
6.5 LOGGING......................................................................................................................31
6.5.1 Logging messages.................................................................................................31
6.5.2 Error message.......................................................................................................32
6.5.3 Extra debug option................................................................................................32
6.6 BASIC SETTINGS ..........................................................................................................33
6.6.1 Default Settings.....................................................................................................33
6.6.2 Webserver Settings................................................................................................34
6.7 MODBUS2MBUS ..........................................................................................................34
6.8 QUICKPOST..................................................................................................................34
6.9 STATUS ........................................................................................................................35
6.9.1 Digital I/O and Relay............................................................................................ 35
6.9.2 M-Bus Master Output ...........................................................................................35
6.9.3 RS-485 Failsafe.....................................................................................................35
6.9.4 Temperature and Error......................................................................................... 36
6.10 DOCUMENTS.............................................................................................................36
COMMUNICATION WITH THE METERS............................................................37
7.1 TESTING WITH THE PIIGAB M-BUS 900S/T AS AN M-BUS METER ..............................37
7.2 COMMUNICATION TIPS .................................................................................................38
7.2.1 Correct baud rate..................................................................................................38
7.2.2 The meter’s board rate settings ............................................................................38
7.2.3 Supplier specific configuration software ..............................................................38
7.2.4 Parameter settings to keep in mind.......................................................................38
PIIGAB M-BUS SETUP WIZARD ............................................................................39
8.1 START PIIGAB M-BUS SETUP WIZARD.......................................................................39
8.2 FIND THE GATEWAY ON THE NETWORK........................................................................40
8.3 WEB INTERFACE...........................................................................................................41
8.4 NETWORK SETTINGS VIA PIIGAB M-BUS WIZARD......................................................42
8.5 COMMUNICATIONS TEST (PING)...................................................................................46
8.6 METER SETTINGS .........................................................................................................47
8.7 FINDING METERS ON THE M-BUS NETWORK ................................................................51
8.7.1 Finding meters via primary address.....................................................................51
8.7.2 Step by step instruction for primary address search.............................................51
8.7.3 Finding meters via secondary addressing.............................................................52
8.7.4 Step by step instruction for secondary address search .........................................52
APPENDIX ...................................................................................................................53

9.1 TECHNICAL DATA ........................................................................................................53
9.1.1 Specification Base unit..........................................................................................53
9.1.2 Specification relay. ...............................................................................................53
9.1.3 Specification digital input.....................................................................................53
9.1.4 Specification RS485..............................................................................................54
9.1.5 Specification RS232..............................................................................................54
9.1.6 Specification M-Bus Slave ....................................................................................54
9.1.7 Specification M-Bus Master..................................................................................54
9.2 TIMEOUTS....................................................................................................................55
9.2.1 Master Timeout.....................................................................................................55
9.2.2 Slave Timeout........................................................................................................55
9.2.3 Slave Timeout, MBus2Modbus and M-Bus ASCII ................................................56
9.2.4 Defrag Timeout.....................................................................................................56
9.3 DRAWINGS...................................................................................................................57
9.4 DETAILED TELEGRAM INFORMATION FOR THE INTERNAL METER.................................58
9.4.1 Read command REQ_UD2 ...................................................................................58
9.4.2 Response from PiiGAB M-Bus 900S/T..................................................................58
9.4.3 Write to the relay output .......................................................................................60
9.4.4 Writing passed ......................................................................................................60
9.4.5 Reset command SND_NKE...................................................................................61
9.4.6 Reset passed..........................................................................................................61
9.4.7 Application reset...................................................................................................61
9.4.8 Application reset passed .......................................................................................61
9.5 CONTACTS ...................................................................................................................62
9.6 DOCUMENT VERSION ...................................................................................................63

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General
1.1 About this manual
This manual will give you the guidance to install and connect the PiiGAB M-Bus 900 to your
network. It demonstrate how you connect to network, RS232, RS485, M-Bus Slave and the M-
Bus Master output as well as how you configure the module based on your requirements
1.2 Functional overview
The PiiGAB M-Bus 900 works as an interface between the Ethernet/RS232/RS485/M-Bus slave
entrance and the M-Bus network. The gateway is completely transparent which means that the
M-Bus questions asked via Ethernet are transferred out on the electric M-Bus interface. The
same goes for the answers sent from the meters via the gateway.
The gateway also has the option to add different software modules to meet requests such as
conversions between protocols, reading the same meter from different clients and sending files
to a database etc.
1.3 Advantages and possibilities
•The possibility to choose between TCP/IP or UDP/IP
•The gateway can be used with a fixed or a dynamic IP number.
•It is not dependent on any specific operating system, which means it can be used with
both Linux and Windows.
•There is a possibility to use password protection to prohibit unauthorized to change the
configuration.
•Communicate with up to four clients at once.
•Read M-Bus meters via Modbus (TCP/RTU).
•Read Modbus meters or other Modbus equipment’s via M-Bus.
•Local and central reading of the same meter from different directions at once.
•Connect to existing M-Bus network.
•Makes it possible for redundant communication.
•Read meters via M-Bus and Modbus at the same time.
•Read a few M-Bus meters without external M-Bus drivers via M-Bus ASCII.
•Can upgrade number of M-Bus loads (meters) and number of clients via a software
license.
•Via the QuickPost application can meter values be logged and pushed to an FTP or
HttpPost server.
•Read virtual M-Bus meters.
Chapter
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Technical structure
The gateway’s interface consists of one Ethernet connection, one RS232, one RS485, two
separate M-Bus slave inputs, four parallel outputs for M-Bus loops, two digital inputs and one
relay output as well as a voltage connection.
There are ten leds on the front of the gateway with different kind of information please see the
table in section 2.2.
2.1 Connections
2.1.1 Connections on the upper 18 pin connector
Figure 2-1
Table 2-1
Chapter
2
Connection
Term
Description
1
Relay NO
Relay output normally open
2
Relay COM
Relay output
3
Relay NC
Relay output normally closed
4
DI1 +
Digital input 1
5
DI1 -
Digital input 1
6
DI2 +
Digital input 2
7
DI2 -
Digital input 2
8
RS485 A
Connection for RS485
9
RS485 B
Connection for RS485
10
R485 GND
Connection for RS485 GND
11
RS232 Rx
Connection for RS232 Rx
12
RS232 Tx
Connection for RS232 Tx
13
RS232 GND
Connection for RS232 GND
14
X
Not used
15
M-Bus Slave 1
Connection to already existing M-Bus loop with belonging M-Bus
master. Polarity independent.
16
M-Bus Slave 1
Connection to already existing M-Bus loop with belonging M-Bus
master. Polarity independent.
17
M-Bus Slave 2
Connection to already existing M-Bus loop with belonging M-Bus
master. Polarity independent.

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2.1.2 Connections on the lower 12 pin connector
Figure 2-2
Connections on the lower left 3 pole connector are as stated in the below table:
Table 2-2
Connections on the lower right 9 pole connector are as stated in the below table:
Table 2-3
18
M-Bus Slave 2
Connection to already existing M-Bus loop with belonging M-Bus
master. Polarity independent.
Connection
Term
Description
19
24 V AC/DC+
24V AC power alternatively 24V DC (plus side)
20
24 V AC/DC-
24V AC power alternatively 24V DC (minus side)
21
GND
Connect to decrease potential disturbances.
Connection
Term
Description
22
M-Bus
Master +
Connection to the M-Bus loop 1
23
M-Bus
Master -
Connection to the M-Bus loop 1
24
M-Bus
Master +
Connection to the M-Bus loop 2
25
M-Bus
Master -
Connection to the M-Bus loop 2
26
M-Bus
Master +
Connection to the M-Bus loop 3
27
M-Bus
Master -
Connection to the M-Bus loop 3
28
M-Bus
Master +
Connection to the M-Bus loop 4
29
M-Bus
Master -
Connection to the M-Bus loop 4
30
X
Not used

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2.2 Indications
The description of the different leds is in the front. By using the leds it is easy to simply follow
the traffic from different M-Bus clients and how the traffic moves via the masterport and the
meters.
Figure 2-3
The function of the leds is described in the table below:
Table 2-1
Row 1
Description
Row 2
Description
Pwr
Power led is red when normal.
Flashes red and green at the startup.
This usually takes 10 seconds from that
the power is turned on.
Flashes red at a fast rate when there is
a short circuit on the M-Bus loop.
Flashes slowly orange when the loop is
overloaded.
Flashes slowly orange when the license
key is not installed.
C1
No function in existing version
C2
Modbus2MBus (Tx)
C3
Modbus2MBus (Rx)
M (Tx)
Flashes when the Master port sends
data
M (Rx)
Flashes when the Master port receives
data
P1 (Rx)
Flashes when Slave port 1 receives data
P1 (Tx)
Flashes when Slave port 1 sends data
P2 (Rx)
Flashes when Slave port 2 receives data
P2 (Tx)
Flashes when Slave port 2 sends data
P3 (Rx)
Flashes when Slave port 3 receives data
P3 (Tx)
Flashes when Slave port 3 sends data
P4 (Rx)
Flashes when Slave port 4 receives data
P4 (Tx)
Flashes when Slave port 4 sends data

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2.3 Reset button
The reset button is located between the supply voltage connection and Ethernet 1. See the
picture below.
The button is located under the cover and can be reached by using a small screwdriver.
However, use with care and don’t use a pointy screwdriver that can end up next to the button.
With the reset button you can restart the PiiGAB M-Bus 900, set the network settings to default
(DHCP plus random IP address) or to change the Web login to default (Admin, Admin).
The reset button should be used in the following way. Push the button until chosen led is light
up, when the led is flashing fast you will push the button again and the chosen function will be
executed.
Example: Push the button once and the P1 (Rx) will light up. Wait until the P1 (Rx) is flashing
fast and then hold down the button again. In the event of pushing the button whilst it is flashing
fast you will automatically restart the PiiGAB M-Bus 900S/T. If you don’t push whilst the light is
flashing nothing will occur.
The table below describe the functions of the button:
Table 2-2
Term
Action
Description
Restart
Push the button 1 time
and wait for the P1/Tx led
to flash quickly. Then
push the button an
additional time while it is
blinking.
The gateway will restart.
Reset of
Ethernet
Push the button 1 time
and wait for the P1/Tx led
to flash quickly. Then
push the button an
additional time while it is
blinking.
The gateway’s Ethernet port returns to its original
settings. DHCP and randomized IP if there is no DHCP
server available.
Reset of
password
Push the button 6 times
and wait for the P3/Rx led
to flash quickly. Then
push the button one
additional time while it is
blinking.
If a password has been chosen for the login it will now
return to Admin:Admin.
Reset button
Figure 2-4

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Description of the different connections
3.1 Relay, plint 1-3
PiiGAB M-Bus 900S contains a relay. This can be used to for example control different functions
such as turning on and off the outside lights in a residential area. This is done by sending a M-
Bus written command to the internal meter inside the PiiGAB M-Bus 900S
Figure 3-1
The status can be read for the different I/O signals in the page ”Status” and section ”Digital I/O
and Relay” in the web interface. The status for the relay can also be read via the internal M- Bus
meter inside the PiiGAB M-Bus 900S.
To activate the relay use the write function for the internal M-Bus meter in PiiGAB M-Bus 900S.
Read more
When there is no voltage the relay will be as shown in the position below.
3.1.1 Connection relay
Figure 3-2
3.2 Digital inputs, plint 4-7
PiiGAB M-Bus 900S contains two different digital inputs. Adequate usage can be for digital
status, alarms, broken seals etc.
Figure 3-3
The status can be read for the different I/O signals in the page ”Status” and section ”Digital I/O
and Relay” in the web interface. The status for the relay can also be read via the internal M- Bus
meter inside the PiiGAB M-Bus 900S.
The inputs are completely galvanic isolated between each other and the earth.
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3.2.1 Connection Digital inputs
The connection of the digital inputs is shown in the figure below
Figure 3-4
If the gateways is fed with 24VDC this voltage can also be used to feed the digital inputs.
3.3 RS485, plint 8-10
The connection is a common two wire RS485 connection. It is ESD-protected up to 15kV and is
completely galvanic isolated from the earth feed.
Figure 3-5
On plint 10 there is an earth connection that can be used as a reference point if the units
connected have that requirement. This earth connection is completely galvanic isolated from the
earth feed.
Figure 3-6
See also the description about Failsafe for RS485 in chapter 9.1.4.1.
3.4 RS232, plint 11-13
The connection is a common RS232 connection. It is ESD-protected up to 2.5kV and is
completely galvanic isolated from the earth feed.
Figure 3-7

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3.5 M-Bus Slave, plint 15-18
The PiiGAB M-Bus 900S contains two separate M-Bus slave inputs. By using these two M-Bus
slave inputs it is possible to connect to external M-Bus masters. These connections are
completely galvanic isolated from each other and from the earth feed. Each input uses less than
one M-Bus load (1.2 mA). The configuration of the inputs is made via the web interface.
Figure 3-8
The slave inputs is working with communication speed 300, 2400 and 9600 baud.
3.6 Power, plint 19-21
Figure 3-9
Table 3-1
3.7 Ethernet
The Ethernet connection is a standard RJ45 contact.
Figure 3-10
Ethernet connection 100MBit
Connector type RJ45
Figure 3-11
Plint No
Name
Description
19
24 V AC/DC+
Supply voltage 24V AC alternatively 24V DC (positive side)
20
24 V AC/DC-
Supply voltage 24V AC alternatively 24V DC (negative side)
21
GND
Connect for decrease disturbances
Female socket
Male plug

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3.8 M-Bus master, plint 22-29
The M-Bus master output contains of four parallel outputs that can be used to connect M-Bus
loops. All of the four parallel outputs are fed by the same M-Bus driver.
The picture below shows the connections for the four M-Bus outputs.
Figure 3-12
The base voltage of the M-Bus master output is generally 39-40V.
The masterport will react if there has been an overload or short circuit on the loop. This is
shown by the Power light flashing at different speeds depending on the problem. The user can
also read out the voltage or current on the bus via the internal M-Bus meter inside the PiiGAB
M-Bus 900S/T.
In the PiiGAB M-Bus 900S/T the different master outputs can be turned on or off via the web
interface. See the below picture. It can be found under base configuration in the web interface.
By turning off an output there is no voltage on this partial loop. The purpose of the function is
to be able to trouble shoot locally or remotely on the different M-Bus loops.
Figure 3-13
When Reboot or power on all outputs are set to ON.
When Restart the outputs keep the output status.
Table 3-2
Plint No
Name
Description
22 - 23
M-Bus Master, loop 1
Output ON/OFF 1
24 - 25
M-Bus Master, loop 2
Output ON/OFF 2
26 - 27
M-Bus Master, loop 3
Output ON/OFF 3
28 - 29
M-Bus Master, loop 4
Output ON/OFF 4

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The internal M-Bus meter
PiiGAB M-Bus 900S/T also functions as an M-Bus meter on the M-Bus network with the default
primary address 251. You can read out the information according to the table below. There is
also the possibility to influence the built in relay.
4.1.1 Simple version
Table 4-1
Data record No
Datatype
Description
1
BCD8
Identification number
2
Int16
The M-Bus net’s voltage (V*0,1)
3
Int16
The M-Bus net’s current consumption (mA*0,1)
4
Int32
Error flags
Bit 0: Master overload
Bit 1: Master short circuit
5
Int8
Digital input 1
6
Int8
Digital input 2
7
Int8
Relay status
8
Int16
Temperature on the M-Bus driver card
9
Int16
Temperature on the 40V DC/DC converter
10
Int8
Status for the four Master outputs.
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4.1.2 Writing
By writing down to the PiiGAB M-Bus 900S with a standard M-Bus write command the relay can
be set to ON/OFF. For details please read more here.
The below picture for the PiiGAB Explorer/M-Bus OPC Server shows the configuration of the
writing process.
Figure 4-1

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Get started step by step
This chapter covers the different steps needed to put the PiiGAB M-Bus 900S/T gateway into
operation.
5.1 Important information
1) Connect the PiiGAB M-Bus 900S/T to power supply and Ethernet1 as shown in table 2.1
2) Start and wait for the Pwr led to be solid red.
3) Read out the hardware/MAC address to be found on the right end. It has the
format E8-99-5A-XX-XX-XX
4) Start PiiGAB M-Bus Wizard on your PC.
5) For initial contact with the PiiGAB M-Bus 900S/T there are three possibilities depending on what
your network looks like.
a) DHCP with router: You should be able to find your PiiGAB M-Bus 900 directly via the Wizard’s
”Find gateways on your network”.
b) Direct connection: Set your computer to static IP-address 192.168.10.1 and connect it
directly to the PiiGAB M-Bus 900S/T. Turn on the power of the PiiGAB M-Bus 900S/T and wait
for about a minute. The gateway should get a random IP-address between 192.168.10.3 -
192.168.10.253. You can now use the Wizard’s ”Find gateways on your network” to find your
PiiGAB M-Bus 900S/T in the list.
c) Static network: Turn on the power on the PiiGAB M-Bus 900 and wait for about a minute.
The unit should now receive a random IP-address within 192.168.10.3 - 192.168.10.253.
•Start/Restart the Wizard and click on ”Change gateway IP-settings”, click ”Next”
•Write the MAC-address for your PiiGAB M-Bus 900, Click ”Next”
•Write your preferred IP-address, Click ”Next”, Click ”Apply”. The PiiGAB M-Bus 900 will
now restart. Netmask and Gateway is set by the web interface. Only the network address
will be set. Netmask will be 255.255.255.0 which means that the IP-address must be on
the same subnet as your PC.
•The PiiGAB M-Bus Wizard will now complain that the PiiGAB M-Bus 900S/T does not
answer. Don’t worry about this instead go to ”Find gateways on your network” and make
your final settings in the web browser. All other settings are done in the web interface for
PiiGAB M-Bus 900S/T
6) Open up a web browser and go to the PiiGAB M-Bus 900S/T
7) Accept the PiiGAB M-Bus 900S/T security exceptions.
8) Log onto the PiiGAB M-Bus 900S/T with default login
Username: Admin, Password: Admin
You should now be in the configuration web interface of your PiiGAB M-Bus 900S/T.
We do not recommend that any of PiiGAB’s products or products bought from PiiGAB should be made
public on the internet. We always recommend that a firewall is used, not following this
recommendation will be at your own risk.
Chapter
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5.1.1 Hardware address
You have to know the unit’s hardware address, which is the same as the MAC address. The MAC
address can be found on the label on the right gable of the unit. It has the format
E8-99-5A-xx-xx-xx, where xx is a unique number for the unit.
5.1.2 IP-address
Most of the time the gateway needs a unique IP address on your network in order to be
connected to the superior software. You can also use the automatic IP address via DHCP if you
wish. Contact the system administrator to receive the right IP address with the belonging subnet
mask and gateway. The IP address has to be within the allowed area, unique within your
network, and it has to be in the same subnet as your PC.
5.1.3 TCP/UDP
To communicate with the superior software you have to choose between TCP or UDP. For your
client connection, this can be found under respective Slave Port. Default settings is the same as
factory settings.
5.1.4 Port number
In order to communicate with the gateway the port numbers need to be set. The default setting
in the gateway is 10001, 10002, 10003, and 10004 for respective slave port and can normally
be used. Make sure to check with your network department what port number to use.
5.1.5 Factory settings
The factory settings are made to make it easy to test PiiGAB M-Bus 900S/T with a connected M-
Bus meter.
Master Port:
Table 5-1
Type
Com port
Baud rate
Timeout (ms)
Reconnect (s)
Protocol
Serial
M-Bus Master
2400
2000
1000
M-Bus
Slaveport 1-4:
Table 5-2
Type
Local Port
Timeout(ms)
Protocol
UDP
10001-10004
2000
M-Bus

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5.2 Using PiiGAB M-Bus Setup Wizard
By using the M-Bus Wizard it’s possible to find the PiiGAB M-Bus 900S/T on the network. The M-
Bus Wizard is a software that can be downloaded from PiiGAB’s website.
By using the M-Bus Wizard it is possible to find both the PiiGAB 810 and the PiiGAB M-Bus
900S/T on the network. Usually an IP address is set on the gateway and if this is outside the
allowed IP address range it will be marked red. However, it is not possible to find the gateway if
it is connected to a subnet.
From version 3.1.0 of the M-Bus Wizard it is possible to change the IP- address on the M-Bus
PiiGAB 900S/T by using the gateways MAC address. However, you cannot change the netmask
and gateway via the Wizard. This includes all other configurations that can be made via the web
interface in PiiGAB M-Bus 900S/T.
To test the meters that are connected to the PiiGAB M-Bus 900S/T it is best to use the Wizard.
Read more here

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Settings and Parameter description
6.1 Configuration
Figure 6-1
Chapter
6