User manual

WI-GTWY-9-xxx Wireless Gateway V1.18
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40 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000
Note that I/O Image locations are specified in decimal, whereas register values are displayed and
specified in hexadecimal. If you want the WI-GTWY-9-xxx to stop the host device writing
values to the I/O database at the same time, then select option i) Disable Fieldbus Write Area.
Press “Enter” to go back to the menu.
Option b) Write Image Array
This option allows you to change the value of an I/O register in the Radio Interface.
To change the value of a register, select option b) write image array.
Enter the location, then the value to be written to the register – for example
b
Location: 12
New Value: 0xFFFF
Register values should always be written in hexadecimal format. If you want the WI-GTWY-9-
xxx to stop the host device reading or writing values to the I/O database at the same time, then
select option h) or i).
Options c), d) Enable/Disable Comms logging
These options allow logging and display of radio communications. Once enabled, the radio
communications that are displayed is the radio traffic in raw format (i.e. the raw data frame for
each received packet is displayed in hexadecimal format). To decode the meaning of each radio
data packet, configuration software can be used to decode the data frames.
• To decode the radio traffic using configuration software, first start communications logging
by selecting option “c) Enable Comms Logging” from the debug menu. Next, in the diagnostics
screen select ‘Stop Terminal’ and then ‘Start Comms’. Configuration software now expects the
WI-GTWY-9-xxx to be in monitor comms mode, and will decode all radio communications.
The display will show radio messages transmitted and received. Messages starting with RX are
received messages, CMD are transmitted messages and ACK are acknowledgment messages. At
the end of each received message is the RSSI (radio signal strength indication) in dBm.
If you select any message line with the mouse, information about the message will be displayed
at the bottom of the screen - the system address, RSSI and CRC (error-check) status. The “text
box” at the bottom middle of the screen decodes the message - that is, it decodes the message
to display I/O channel and value. Note – Configuration software can only decode the message
completely if the same configuration project corresponding to the system being monitored is
open.