Kara Systems BACnet:M-Bus User Manual - page 17
User’s Manual
Kara BACnet Gateway
Page 17
State: could be one of the following
OK
Inactive: meter is not responding
Communication Error:
Collision Detection: Two meters are responding for same address, check meter addresses
Send Error: check RS232 cabling
Wrong Command: Incorrect Data received
Wrong Start Character: Incorrect Data received
Message too short: Incorrect Data received, a meter on the M-Bus could be damaged
Wrong length: protocol Error
Wrong Checksum: Check Baudrate and cable lengths
M-Bus Status Error: means that the Meter signals an error in the Meter status field
Value: Value of the default record set in the meter configuration
Units: Value of the default record set in the meter configuration
Description:
description of the default record set in the meter configuration
To BACnet: a List of record numbers which are converted to BACnet Analog Input
The first number is the meters record number and the second number is the BACnet Instance number.
Records: see Meter Records
5.1 4.1 Export to Excel
If you want to export the meter list to Excel click on “Export to Excel” then open the file with Microsoft
Excel.
5.2 4.2 Scanning Meters
To detect new meters on M-Bus the M-Bus:BACnet Gateways performs a scan on all primary M-Bus
addresses for all baudrates selected and then make a secondary scan on meter Identification numbers for
all baudrates selected. Meter found on secondary scan has a primary address of 253.
Attention
The meters Identification Number must be unique for all meters.
Clicking on “Start Scan” will show the scan status.
Meters found will be listed in the M-Bus Meter Reading dialog. The Meters found are saved and will get
an Inactive Status if they are switched off.