Customized Comm Timings window

The Discovery Wizard windows limit the discovery search in an effort to optimize performance. Most of the wizard windows are self-explanatory. The Customized Comm Timings window benefits from explanation.
Figure 10.   Customized Comm Timings window
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You access this window by clicking the Discover button on the Database pane of the Mbus Device Manager view, selecting an option other than Scan Device Database, followed by clicking Next.

Property Value Description
Radio buttons N/A Configure the timings of the database search.

Mbus standard speed scan retries the search twice with a response timeout of two seconds, an inter-message delay of 0.3 seconds, and an initialisation delay of one second.

Slow speed scan settings retries the search twice with a response timeout of 10 seconds, an inter-message delay of 0.3 seconds, and an initialisation delay of five seconds.

Customized timings based scan configures the speed based on the following properties.

Retry Count number (defaults to 2) Configures how many times to repeat a network read request, if no response is received before the response timeout interval.
Response Timeout hours, minutes, seconds, milliseconds (defaults to 2 seconds) Configures the length of time before the system times out when interrogating an Mbus device. You should start by setting this value to a large number, such as 40 seconds. Then, reduce it depending on the number of meters and discovery performance. During testing, a value of 12.5 seconds was used.
 
NOTE: The baud rate also impacts performance. Each device may have a different baud rate.
 
Inter Message Delay hours, minutes, seconds (defaults to 0.3 seconds) Defines the amount of time between messages.
Initialization Delay hours, minutes, seconds, milliseconds (defaults to 1 seconds) Defines the period before the system sends next command following an initialization request to the network (SND_NKE). This period should be adjusted to suit the hardware installed on the network. Please consult the device documentation for a suitable value.