INHECO
26
Doc ID: 900434-001
March 2018
6.2.
LeD status
The LED indicates the status of the module:
-
Power on and device is initialised >> LED blinking slow
-
Firmware download >> LED is blinking (ca. 3-5 Hz)
-
USB-Communication not present >> LED is blinking (ca. 1 Hz)
Fig.21:
Interconnection
.
USB
D-Sub
NOTE!
For the implementation it is important to consider different setup conditions.
Some devices may be already connected to the USB (green LED is on) some
may not (green LED is blinking at 1 Hz). The blinking of the LED stops only
after the first message with the correct device ID is sent to the Incubator device.
Therefore you need to send at least two messages to bring all devices into the
same state. The reason for that is that slave devices have to register themselves
to the master device within a certain time frame. This happens after the first
correct USB message to the master was sent