Handle 10 bytes data

[Kilogica]

Hello everyone,

I have to send a 10 bytes value to an object (it's a blumotix access control system) with a W4K, but I can't find a way to write directly on knx bus, is it possible?

I tried to search but I wasn't able to find anything useful

For examble I have to send $12 $34 $56 $00 $00 $00 $00 $00 $00 $80 to the address 5/4/0, how can I?

Many thanks in advance for the help.

[admin]

Use dt.raw datatype to send raw data as is:

Code:

value = string.char(0x12, 0x34, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80)
grp.write('5/4/0', value, dt.raw)

[Kilogica]

It works, thanks!

[CristianAgata]

Use dt.raw datatype to send raw data as is:

Code:

value = string.char(0x12, 0x34, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80)
grp.write('5/4/0', value, dt.raw)

Thanks

[Alberto.ricof]

Good afternoon,

Can you think of a way to give the client a text field (or 6 different fields since the password is 6 digits) to fill in those 10bytes?

This Blumotix device (see attached manufacturer's information for the 10byte object) works with 6 digit keys in 10byte format, the last byte determines whether you write or delete the key.

The idea is to set up a visualisation so that the client can write the key every time he wants to change it and with a button we can write correctly on the device.

Thank you in advance for your help,

Greetings !

   

[admin]

Event script for the code object. Use 250 byte string object. Code format is 6 numbers, everything else will be ignored.

Code:

value = event.getvalue()

-- code format is 6 numbers
if #value == 6 and value:match('^%d+$') then
  b1 = tonumber(value:sub(1, 2), 16)
  b2 = tonumber(value:sub(3, 4), 16)
  b3 = tonumber(value:sub(5, 6), 16)

  req = string.char(b1, b2, b3, 0, 0, 0, 0, 0, 0, 0x80)
  grp.write('5/4/0', req, dt.raw)
end

[Alberto.ricof]

Event script for the code object. Use 250 byte string object. Code format is 6 numbers, everything else will be ignored.

Code:

value = event.getvalue()

-- code format is 6 numbers
if #value == 6 and value:match('^%d+$') then
  b1 = tonumber(value:sub(1, 2), 16)
  b2 = tonumber(value:sub(3, 4), 16)
  b3 = tonumber(value:sub(5, 6), 16)

  req = string.char(b1, b2, b3, 0, 0, 0, 0, 0, 0, 0x80)
  grp.write('5/4/0', req, dt.raw)
end

works great, you are a crack!

thank you very much