User Manual

ALF-DSP 88-U
-43-
0xb3 Message
Type
Length V e rsion
No.
Data
V1:
Information types (byte2): There are three information types including 0x21 (parameter controls), 0x22 (parameter
acquisition) and 0x13 (scenario switch).
Length (byte3): invalid.
0x21 (parameter control): Data byte 5 thought 12 are respectively:
byte 5~6 byte 7~8 byte 9~10 byte 11~12
Module ID Parameter Type Parameter 1 Parameter 2
Please refer to Appendix A to get the distribution of Module ID (byte 5 ~ 6).
Please refer to Appendix B for Parameter types (byte 7 ~ 8).
When Parameter 1 (byte 9 ~ 10) has only one parameter, then only parameter 1 is valid, such as control compressor
switch.
Parameter 2 (byte 11 ~ 12) only valid when there are two parameters, such as control output channel 1 mute.
Parameter value 1 shall be filled in input channel number from 0. Parameter value 2 shall be filled in 1 (mute).
Exception: Matrix routing has three parameters. The first one is input channel number, the second one is output
channel number, and the third one is routing switch. At this point, byte 9 of parameter value 1 shall be filled in
input channel numbers, byte 10 shall be filled in output channel number, and parameter 2 shall be filled in routing
switch.
0x22 (Parameter Acquisition):
Parameter acquisition rules are the same with parameter controls. The difference between them is values acquired
shall be filled in parameter 1 and parameter 2.
0x13 (Scenario Switch):
Users only need to fill scenario numbers (0 ~ 15) in byte 5 and 0 in byte 6 ~ 12.
Note: Central control command of V1 version can acquire code through software menu bar of PC. For customized
development, please use this protocol rule.
V2:
Message types (byte 2): There are three message types (byte 2) including 0x21（parameter controls), 0x22
（parameter acquisition), 0x13 (scenario switch), 0x74 (other controls), and 0x6e (Dante routing).
Length (byte 3): Fill in corresponding data section length based on information type. The length can be longer when
actual sending is carried out. Total data volume can be found through adding 4 byte heade r information to data
length.
1. Parameter Control (0x21)
At this point, the formats of data section are as follows.
Byte 5 Byte 6 Byte 7 Byte 8 Byte 9 ~ 72
Input / Output Start Channel End Channel Parameter Type Parameter Value
Byte 5: It indicates control input or output channel, 0x2- input channels and 0x1-output channels