User manual iSMA-B-AAC20/M-Bus Network
Version 1.2
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Fault Cause: Fault cause description;
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Enabled: Enables/Disables the M-Bus Local Device;
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Last Read Success: Last proper success device read time;
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Poll Frequency: Device read frequency (times defined in the network component),;
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Address Mode: Define device communication type address (Primary or Secondary);
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Primary Address: Device Primary Address;
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Secondary: Device Secondary Address;
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Retry Count: Max. number of error messages (CRC error, lost messages) before the
device down;
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Initialization Delay: Delay time after initialization message;
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Response Timeout: Max. device response time from the device request;
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Inter Message Delay: Time between messages sent to the device,;
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Manufacturer: Manufacturer description read from device (read only);
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Device Type Id: The M-Bus Device Type ID read from device (read only);
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Read Trigger: Remote force device data read trigger;
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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 decoded, and based on this
information the iSMA-B-AAC20 creates corresponding points components. The iSMA_Mbus
kit uses two types of components:
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Numeric: for numeric values;
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String: for values other than numeric like description, time, etc.
Note: The M-Bus device always responses by a full message, so the number of components
has no influence on the network traffic. To maintain the order the user can delete unused
components.
7 M-Bus IP Network
This component is responsible for servicing the M-Bus devices connected to the iSMA-B-
AAC20 controller by the IP network and IP-M-Bus gateway. The max. number of devices
connected to the bus is limited by a gateway specification.