Tact Audio TCS User Manual
TCS RS232 Control Functions
TCS RS232 Control Codes
TCS utilizes RS232 communication channel to communicate with PC and other Tact
units. To send data or commands to TCS, PC software sends variable length data packet.
Each packet consists of N bytes. Packets are structured in the following way:
Byte #0 = N - number of bytes in the packet
Byte #1 = A0 - Least significant address byte
Byte #2 = A1 - Most significant address byte
Byte #3 = CC - Command code byte
Byte #4 = D0 - First data byte
Byte #5 = D1 – Second data byte
….
Byte #(N-1) = Last data byte
All Tact components connected to the PC will receive transmitted packed. The only
component that will respond to the received message is the one that matches its internal
address with the received one. All others will ignore entire packet. Addressed component
could respond by sending a packet of its own to acknowledge received packet, or send
back requested information, or not to respond at all depending on the received command
code.
The following is a description of TCS codes used to control basic functions of TCS
preamplifier. These codes can be supplied to custom installers to link Tact products to
RS232 remote controls.
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TCS RS232 Control Functions
Communication Test CC = 1
This command is used to test RS232 communication channel. It can be used to detect is
Tact component with specified address is connected to PC.
Transmitted packet:
Byte# Value Description
0
1
2
3
Received packet:
Byte# Value Description
0
1
If received packet is not equal to above description communication error has occurred.
Note: Device address is calculated as:
4 Packet size
1 A0
0 A1
1 CC – command code
2 Packet size
0xaa Acknowledgement byte
Device Address = 256*A1 + A0
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TCS RS232 Control Functions
Get Status CC = 18
This command is used to upload correction selection and master level information into
remote controller.
Transmitted packet:
Byte# Value Description
0
1
2
3
4
Received packet:
Byte# Value Description
0
1
2
M_MSB Master level most significant byte
3
4
If received packet is not equal to above description communication error has occurred.
Note: Master Level = 256*M_MSB + M_LSB
5 Packet size
1 A0
0 A1
18 CC – command code
10 Required byte
5 Packet size
0xaa Acknowledgement byte
M_LSB Master level least significant byte
COR Correction selection
COR = 0 – Bypass
COR = 1 – Correction 1
.
.
COR = 9 – Correction 9
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TCS RS232 Control Functions
Set Correction CC = 19
This command is used to set bypass or one on nine correction presets.
Transmitted packet:
Byte# Value Description
0
1
2
3
4
Received packet:
Byte# Value Description
0
1
If received packet is not equal to above description communication error has occurred.
• This function does not disable front panel controls
5 Packet size
1 A0
0 A1
19 CC – command code
COR COR = 0 Bypass
COR = 1 Correction preset #1
…
COR = 9 Correction preset # 9
2 Packet size
0xaa Acknowledgement byte
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