Example 3:
Hexadecimal notation for a TCP frame that triggers scene No 1:
00 00 00 00 00 0B 00 45 01 00 00 00 01 00 00 00 00
or
00 00 00 00 00 07 00 45 01 00 00 00 01
PDU explained:
45 – Modbus function code: 0x45 = 69, triggering an action
01 – “
scene start
” action
00 00 00 01 – first argument – scene number
00 00 00 00 – second argument – not used in this case
It can be omitted in respect of actions that do not require a second
argument (but remember to change the value of “
Lenght
” field from 0x0B
to 0x07).
Scene and program numbers are assigned when the configuration is
uploaded into the controller. In order to identify the index of a scene or
a program uploaded into the controller, start the relevant element and read
the numbers as shown in the controller preview.
When sending or receiving multiple parameters using a single command
(e.g “
Write Multiple Registers
” – function code 0x10) you can transmit up 125
values in one message.
45
