Orion XS 12/12-50 HEX commands

[domi93]

Hello

I would like to configure the Orion differently from nodered when switching on the power supply, depending on the voltage setting on the power supply.

This is a small PV off-grid system that I use to power small devices and my SDR receiver with 12.8V LiFePo batteries. The power supply is normally set to 13.8V, and the Orion charges the battery to 13.5V (especially in winter when the PV yield is insufficient). However, now that the batteries are empty, I want to switch the power supply to 15V using a switch, thereby increasing the absorption voltage [EDF7] in the Orion to 14.4V.

For testing purposes, I sent the following command: 8F7ED00005A0F\n

which corresponds to 1440 or 14.4V but the Orion confirmed 0x6A4 = 1700 which was actually set that way (absorption voltage 17.0V). The input (Powersupply was off = 0V) when i send the command, i can this be the problem?

Firmware is v1.12

why the Orion sets not the sent Bytes? I have it only 1 month now.

[thiemovanengelen (Thiemo van Engelen (Victron Energy staff))]

Hi,

The hex command you give here is wrong. Taking it apart:
8 => set command
F7ED => vreg EDF7
00 => flags
005A => the value 23040, which would mean 230.40V
0F => CRC
The value is than capped at the maximum.
I believe the correct hex command for 14.40V would be:
:8F7ED00A005C4

Kind regards,
Thiemo van Engelen

[domi93]

thank you for this answer

i read it wrong from the HEX calculator

(now i made a excel-table that calculates CRC and the command automatically)