Biamp A4 User Manual download pdf (Page 182)

Nexia-Manual-A4

To turn echo OFF during a session:

Send byte sequence 0xFF 0xFE 0x01.

Receive 3 byte response from server (0xFF 0xFC 0x01 = echo OFF).

Send desired commands.

To turn echo back ON during a session:

Send byte sequence 0xFF 0xFD 0x01.

Receive 3 byte response from server (0xFF 0xFB 0x01 = echo ON).

Send desired commands.

Command

SET – Tells Nexia that a DSP attribute is to be set to a specific value – may contain negative

numbers and/or decimal points

GET - Tells Nexia that a DSP attribute is to be read – the response may contain a decimal point

and/or a negative number (see Responses

INC - Tells Nexia that a DSP attribute is to be incremented by a specific amount

DEC- Tells Nexia that a DSP attribute is to be decremented by a specific amount

RECALL – Tells Nexia that a preset is to be recalled.

DIAL – Tells the Nexia that a dial command is being sent

SETL and GETL can be used if negative numbers and/or decimals are not supported by a control

system.

SETL – Tells Nexia that a DSP attribute is to be set to a specific value, no decimal places or

negative numbers –To convert a dB number: add 100 to the desired level and then multiply by 10.

Example: To set a level to –60.5dB, add 100 (-60.5 +100 = 39.5). Then multiply by 10

(39.5 X 10 = 395). Instead of Value being –60.5, Value after this SETL command will

equal 395.

GETL - Tells Nexia that a DSP attribute is to be read without negative numbers or decimals. To

convert this number to dB: divide the number by 10, then subtract 100.

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Biamp A4 User Manual Page 182