3-6
Table 3-2 CPU Matrix Display - LED Status Indications
LED
Symbol
Status Indication
CPU Flashing CPU is in Bootstrap Mode.
M1 Flashing Failure in M1 module.
M2 Flashing Failure in M2 module.
M3 Flashing Failure in M3 module.
LOAD On
Configuration definition or application program is being
downloaded to Flash memory.
CONF On
A Site Configuration definition has been loaded into the
Flash memory.
APPL On
An Application Program has been loaded into Flash
memory.
Flashing Relates to one of the following:
– The program is in STOP SCAN state, for the Toolbox
Application Programmer’s monitoring program to
perform diagnostic operations
– The application run-time is to long. Could be caused
by an error in the Ladder Diagram Program (i.e., infinite
loop).
– The Application Program is in STOP state. This
occurs when the Programming Toolbox’s Hardware
Test & Calibration Program is performing a Hardware
Test.
MON On
The Monitoring Program of the Toolbox Application
Programmer is executing on-line monitoring of the RTU.
TX1 On RTU transmits data via Port 1
TX2 On RTU transmits data via Port 2
TX3 On RTU is transmits data via Port 3
RX1 On RTU receives data via Port 1
RX2 On RTU receives data via Port 2
RX3 On RTU is receives data via Port 3
CM1 On Communication channel used by Port 1 is busy.