P3F - Pakscan Master Station Technical Manual
32 of 82
Publication S703E V1.1
Issue 06/09
5.5.6
Master Station Host Analyser
The Host Analyser is a real time system analyser that can be used with either a Modbus RTU serial
data control source acting through one of the serial data ports (Port 1 or 2), or a Modbus TCP Ethernet
control source acting through the Ethernet port.
The analyser will record up to 100 messages (requests and responses) on the data line between the
two points. It is especially useful for debugging a host control system to ensure that messages are
correctly formatted and that the required control or data points are being accessed. In particular the
use of correct offsets in the Modbus protocol can be checked.
Controls - Available to Administration user level
RTU1
: Selects Port 1 host input.
RTU2
: Selects Port 2 host input.
ETH
: Selects the Ethernet port host input.
: Prints the analyser data to a printer attached to the PC.
Save
: Saves the analyser data to a file on the PC.
Refresh
: Updates the file with any new data.
Analyser Events
Controls
Fig 27: Host Analyser Screen
This screen may be used by Administration user level only.
Close pop up