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MODE 1: USB software update
The Sig. Distributor may be updated with smaller modifications from an USB memory stick.
The following softwares are supported for updates from USB:
704517, LPU2 PCB Firmware
704519, LPU2 PCB Software
First, prepare a USB memory stick by placing the software update(s) in a directory called
“LPU2updates” at the top directory level. It is important to use capital letters for “LPU” and
small letters for “updates”. Then, place the USB stick in either one of the two USB connections.
Set DIP to Mode 1, DIP switch 8=off and 7=on. Press and release the Reboot button and the
following process begin:
1: LED S1 and S2 = OFF (a few seconds)
2: LED S1 = ON and LED S2 = OFF
3: As a safety procedure, all previous files in the update directory on the LPU2 are
backed up to the USB stick top level directory “LPU2backup”.
4: The updates are copied from the USB stick. All files in the LPU2updates directory
on the USB stick are copied to the
Sig. Distributor.
5: To indicate that the update procedure is finished, LED S1 goes OFF.
LED S1 and S2 also indicate if something went wrong, by flashing repeatedly. Please check
USB stick and try again. Information about the installation progress is shown in a hyper
terminal if connected to the service RS232 D-sub (115k 8N1).
When the software update procedure is finished, take out the USB Memory stick and set the
DIP switch back to normal operation, Mode 0, and press and release the Reboot button.
MODE 0: Normal operation
Set dipswitch 8=off and 7=off. Press and release the Reboot button and the following process
begin:
1: S1 = off and S2 = off
2: Executes software upgrade if available, otherwise default software is executed.
3: S1, S2, S3 and S4 are now under the
Sig. Distributor software control. S1, S3 and S4
are lit, S2 flickers.
8.4 Performing factory reset
WARNING: A factory reset will erase all menu settings and configuration normally done
during commissioning. If a software update from USB is interrupted by e.g. a power failure, a
factory reset will be necessary.
MODE 2: factory reset
Set dipswitch to Mode 2 (from default move DIP 8=ON). Press and release the Reboot button
and the following process begin:
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