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User manual iSMA-B-AAC20/M-Bus Network

Table of Contents

Revision History

2.1 Installation of the iSMA M-Bus Kit

3.1 M-Bus Topology and Cable

3.2 M-Bus Addressing

4 M-Bus Kit Components

5 M-Bus Local Network Component

6 M-Bus Local Device

6.1 M-Bus Local Device Points

7 M-Bus IP Network

8 M-Bus IP Device

8.1 M-Bus IP Device points

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Summary of Contents for B-AAC20

Page 1: ...iSMA B AAC20 User Manual M Bus Network Global Control 5 S A Warsaw Poland www globalcontrol5 com ...

Page 2: ...s Kit 3 2 1 Installation of the iSMA M Bus Kit 3 3 About M Bus 4 3 1 M Bus Topology and Cable 4 3 2 M Bus Addressing 5 4 M Bus Kit Components 5 5 M Bus Local Network Component 6 6 M Bus Local Device 7 6 1 M Bus Local Device Points 9 7 M Bus IP Network 9 8 M Bus IP Device 11 8 1 M Bus IP Device points 13 ...

Page 3: ...k components 1 2 27 01 2020 Replaced environment of programming from Workplace to iSMA Tool Table 1 Revision history 2 M Bus Kit To serve the M Bus protocol connected either to the Local interface or by the IP gateway the iSMA B AAC20 controller uses the iSMA_MBus kit 2 1 Installation of the iSMA M Bus Kit To install the M Bus kit import the kit to the iSMA Tool software possibly as part of the pa...

Page 4: ...driven systems including consumer utility meters When interrogated the meters deliver the data they have collected to a common master for example a DDC controller or a hand held computer connected at periodic intervals to read all utility meters of a building 3 1 M Bus Topology and Cable The M Bus is a hierarchical system with communication controlled by a master for example the iSMA B AAC20 M The...

Page 5: ...quirement of a maximum cable capacitance of 180 nF 3 2 M Bus Addressing The M Bus devices are using two types of addressing Primary This address is assigned by the user in a commissioning process all new M Bus devices have this address set by the factory to 0 this type of address has a limited range from 0 to 250 Secondary This address has a wider range than primary and by default contains a devic...

Page 6: ...al Network Component This component is responsible for servicing the M Bus devices connected directly to the iSMA B AAC20 M M Bus interface The max number of devices connected to the iSMA B AAC20 is 20 and it is a hardware limitation a built in M Bus power supply Figure 3 M Bus Local Network property sheet view This component has the following actions Search Primary Address Discovers devices conne...

Page 7: ...ll frequency Normal Rate Time between device read in Normal mode poll frequency Slow Rate Time between device read in Slow mode poll frequency Read Trigger Remote force device data read trigger Average Poll Time Average time for sending receiving one message Busy Time Percentage of the M bus network usage Total Polls Total number of messages Fast Polls Number of messages sent in Fast mode Normal P...

Page 8: ... the Primary Address All new devices have factory default Primary Address set to 0 WARNING ALL discovered devices are placed in the DiscoveredDevices folder In this folder devices are read only for normal use they must be moved from this folder and placed directly to another MbusFolder under the MbusLocalNetwork component Figure 4 M Bus Local Device property sheet view This component has the follo...

Page 9: ...rigger Remote force device data read trigger Baud rate Device read baud rate available options 300 600 1200 2400 4800 9600 19200 38400 6 1 M Bus Local Device Points The iSMA_Mbus kit does not have device points components available in the Sedona Palette for the user s use The devices points are added automatically during the points discovery process In the discovery process the response message is...

Page 10: ...t Primary Address set to 0 it is recommended to search by the Secondary Address for new devices Search Secondary Address Discover devices connected to the M Bus Local interface by Secondary Address This address contains part of the device serial number and is assigned in the factory This action is recommended for the first bus commissioning Read Network Force devices data read Reset Stats Reset ne...

Page 11: ... port number Parameters like Retry Count Initialization Delay Response Timeout and Inter Message Delay are used in the device discovery action If it is required these parameters can have different settings in devices than the network devices connected to the bus can have different communications parameters 8 M Bus IP Device The M Bus IP Device is a component for servicing the M Bus devices connect...

Page 12: ...ification The component has the following slots Status Component s current status Fault Cause Fault cause description Enabled Enables Disables the M Bus IP Device Last Read Success Last proper success device read time Poll Frequency Device read frequency times defined in the network component Address Mode Defines the device communication type address Primary or Secondary Primary Address Device Pri...

Page 13: ... components available in the Sedona Palette for the User s use The device points are added automatically during the points discovery process In the discovery process response message is decoded and based on this information the iSMA B AAC20 creates corresponding points components The iSMA_Mbus kit uses two types of components Numeric for numeric values String for values other than numeric like des...

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