Johnson Controls Frick QUANTUM Series Maintenance Manual page 52

090.560-M (APRIL 13)
Page 52
DESCRIPTION: This screen allows the technician to view the
status of all communications ports.
The following user selectable buttons are provided:
• [Show Comm1]
• [Show Comm2]
• [Show Comm3]
• [Show Comm4]
This screen allows the technician to view all of the
communications information that the Quantum™ LX is receiving
and transmitting, one port at a time. Simply select the button
at the upper right side of the screen that corresponds to the
port that you wish to view. The selected port name (in this
QUANTUM™ LX CONDENSER/VESSEL CONTROL PANEL
MAINTENANCE
SERVICE SCREENS
SERVICE – Communications Log
case Comm4) will appear in the upper left side of the screen.
Each time a new command is sent or received, the screen will
need to be refreshed by selecting the [Show CommX] button
(where X is replaced with the comm port number).
This screen will display all data that is coming through the
selected Communications (Comm) port. The top line of data
is the most recent activity. At the left of each line, you should
see whether the data is IN or OUT (Receive or Send), and
the actual data (in Hexadecimal format). This information can
be used to compare against the data being sent and received
at the other end of the communications link, to verify proper
operation.