interbus - Onlinecomponents.com
interbus - Onlinecomponents.com
interbus - Onlinecomponents.com
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System Startup<br />
The controller board starts up when the power supply is<br />
connected. First, the hardware is tested. Depending on<br />
whether the parameterization memory is plugged or not, the<br />
controller board then switches to the RUN or READY state.<br />
# % % * ! #<br />
Figure 6<br />
Operating States<br />
2 = H= A JA HE = JE A HO<br />
F K C C A @ E <br />
System startup<br />
BOOT Loads configured data from the parameterization<br />
memory.<br />
READY The boot phase is <strong>com</strong>plete, the system is ready to<br />
operate, all selftests have been carried out, and no<br />
errors have been detected.<br />
ACTIVE Indicates that a bus configuration has been loaded<br />
to the controller board and that this configuration is<br />
the active configuration frame. The bus has not<br />
transmitted any data yet. However, the bus is<br />
checked using identification cycles causing the BA<br />
LEDs to flash on the INTERBUS devices. If an<br />
error occurs during this check, an appropriate<br />
indication is displayed. The RUN element flashes.<br />
RUN The bus starts up and cyclically updates the<br />
memory image. In the status line in the lower<br />
section of the display, the RUN element is also<br />
active.<br />
The chasing chain in the display also indicates that<br />
data is being transmitted.<br />
online<strong>com</strong>ponents.<strong>com</strong><br />
; A I<br />
<br />
In all four phases, the background color is green, if the system<br />
has been started up without any errors.<br />
14 5277CC01
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