PLX51-DL-232
Diagnostics
Data Logger
User Manual
ProSoft Technology, Inc.
Page 52 of 59
The captured Modbus packets are tabulated as follows:
Table 5.14 – Modbus Packet Capture fields
Statistic
Description
Index
The packet index, incremented for each packet sent or received.
Time
The elapsed time since the PLX51-DL-232 was powered up.
Status
The status of the packet. Received packets are checked for valid Modbus
constructs and valid checksums.
Dirn
The direction of the packet, either transmitted (Tx) or received (Rx).
Node
Modbus node address of the message destination.
Description
A brief description of the packet, showing the function and register range if
applicable.
Data
The raw packet data.
4
The packet capture can be saved to a file for further analysis by selecting the
S
AVE
button on the toolbar.
5
Previously saved Modbus Packet Capture files can be viewed by selecting the
Modbus Packet Capture Viewer
option in the
Tools
menu.
Figure 5.19 - Selecting the Modbus Packet Capture Viewer