Echelon LonScanner FX Protocol Analyzer - Manual (Page 61)

LonScanner FX Protocol Analyzer User’s Guide 55
variable. In this example, the network variable index is 6. At packet 13, device
1/2 responds to device 1/1. The success response code is 0x33, and the returned
data is “0 0” in raw format.
Figure 43. Example Log File One – Packet 16 Selected
In Figure 43, packet 16 is selected in the Packet Log. At packet number 16,
device 1/1 sends an acknowledgement to device 1/2. The Data field for packet 16
shows “NVO_848=51201,” which means that the network variable is an output
network variable with selector number 848. A selector is the number used by the
Neuron firmware to associate a network variable update message with a network
variable on the device. In this example, the network variable type is
SNVT_switch and the data sent is “C8 01” (hex) which is “200 1” in raw format.
51201 is the decimal display for 0xC801. Packet number 17 is the
acknowledgment.
Sample 2: Channel with Names Imported from an
LNS Database
The second example log file is shown in Figure 44 on page 56. The names shown
in this log file have been imported from an LNS database. This example shows
how you can search a log for responses to a message sent using the acknowledged
messaging service.