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SMA & SMQ Commands manual
Index
Introduction 2
Output list 2
Using the commands 3
SV0x Set Volume 4
SVU0x Set Volume Up 3dB 4
SVD0x Set Volume Down 3dB 4
SR0x Set Routing 4
SRU0x Set Routing Up 5
SRD0x Set Routing Down 5
SM0x Set Mute 5
GV0x Get Volume 6
GR0x Get Routing 6
GM0x Get Mute 6
GTE Get Temperature 6
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Introduction
Welcome to the command user manual of the AUDAC SMA & SMQ amplifiers. For more
info about the SMA and SMQ amplifiers, see the corresponding user manual. This manual
only describes the use of the commands for controlling the amplifiers through RS-232.
Input list
1 Input 1
2 Input 2
3 Input 3 (Only SMQ)
4 Input 4 (Only SMQ)
Output list
1 Output 1
2 Output 2
3 Output 3 (Only SMQ)
4 Output 4 (Only SMQ)
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Using the commands
The SMA and SMQ amplifiers have an RS-232 communication port which can control the
standard operation functions of the amplifier as further described in this manual.
It must be configured with 19200 baud, 8 data bits, 1 stop bit, no parity
Command overview
Startsymbol|destination|source|command|argument’s|checksum|stopsymbol
Example: Set volume output 1 to -30dB
ASCII: #|Q001|web|SV01|30|U|return
HEX: 237C513030317C5765627C535630317C33307C313262317C0D0A
Important:
- The address of the SMA or SMQ is fixed at Q001.
- The checksum is CRC-16 excluding the ‘#’. You can replace the checksum with
‘U’, this is always accepted as checksum.
- return = 0x0d 0x0a
- source address has a maximum length of 4 characters and cannot contain “|” or
“#”
Command flow
1) The client sends a command to the SMA or SMQ
2) The SMA or SMQ acknowledges the command by returning the same command and a
‘+’ as Argument.
3) The SMA or SMQ updates all client’s with the new information
All volume and routing settings are saved automatically with every change and will
remain when the device is switched off.
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SV0x
Set volume of an output to a certain level
Command: SVx, with x the output number whereof the volume should change.
Arguments: Volume in neg dB, 0 is maximum volume, 70 is minimum volume
Example
Set volume of output 2 to -40dB
Command #|Q001|web|SV02|40|U|return
Answer #|web|Q001|SV02|+|U|return
Update #|ALL|Q001|V02|40|7378|return
SVU0x
Set volume with 3dB up for a certain output
Command: SVU0x, with x the output number whereof the volume should increase.
Arguments: 0 (none)
Example
Current is Volume -30dB, set volume up with 3dB for output 1
Command #|Q001|web|SVU01|0|U|return
Answer #|web|Q001|SVU01|+|U|return
Update #|ALL|Q001|V01|27|U|return
SVD0x
Set volume with 3dB down for a certain output
Command: SVD0x, with x the output number whereof the volume should decrease.
Arguments: 0 (none)
Example
Current volume is -27dB, set volume down with 3dB for output 1
Command #|Q001|web|SVD01|0|U|return
Answer #|web|Q001|SVD01|+|U|return
Update #|ALL|Q001|V01|30|U|return
SR0x
Set routing for an output (select input)
Command: SR0x, with x the output where the routing (input) should change for.
Arguments: Input numbers 1 to 4 (3 and 4 only for SMQ)
Example
Select input 3 for output 1
Command #|Q001|web|SR01|3|U|return
Answer #|web|Q001|SR01|+|U|return
Update #|ALL|Q001|R01|3|3dc5|return
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SRU0x
Set routing up for an output
Command: SRU0x, with x the output where the routing (input) should increase for
Arguments: 0 (none)
Example
Increase routing for output 1 (current is selected is input 1 which changes to input 2)
Command #|Q001|web|SRU01|0|U|return
Answer #|web|Q001|SRU01|+|U|return
Update #|ALL|Q001|R01|2|U|return
SRD0x
Set routing down for an output
Command: SRD0x, with x the output where the routing (input) should decrease for
Arguments: 0 (none)
Example
Decrease routing for output 1 (current is selected is input 2 which changes to input 1)
Command #|Q001|web|SRD01|0|U |return
Answer #|web|Q001|SRD01|+|U |return
Update #|ALL|Q001|R01|1|U |return
SM0x
Enable / disable mute for a certain output
Command: SM0x, with x the output for which the mute status should change.
Arguments: 0 (disable mute) or 1 (enable mute)
Example
Enable mute for output 1
Command #|Q001|web|SM01|1|U|return
Answer #|web|Q001|SM01|+|U|return
Update #|ALL|Q001|M01|1|32c6|return
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GV0x
Get volume info for a certain output
Command: GV0x, with x the number of the output
Arguments: 0 (none)
Example
Get volume info for output 1
Command #|Q001|web| GV01|0|U|return
Answer #|web|Q001| V01|20|U|return
GR0x
Get routing info for a certain output
Command: GR0x, with x the number of the output
Arguments: 0 (none)
Example
Get routing info for output 1
Command #|Q001|web| GR01|0|U|return
Answer #|web|Q001| R01|3|U|return
GM0x
Get mute info for a certain output
Command: GM0x, with x the number of the output
Arguments: 0 (none)
Example
Get mute info for output 1
Command #|Q001|web| GM01|0|U|return
Answer #|web|Q001| M01|0|U|return
GTE
Get temperature info for all outputs
Command: GTE
Arguments: 0 (none)
Example
Get temperature for all outputs
Command #|Q001|web| GTE|0|U|return
Answer #|web|Q001|TE|36^35^39^42|U|return
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