Knoll Systems C16 RS232 Connection, Terminal Settings, Value, Command Summary, Supported Commands

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RS232 Connection

The RS232 connection is used to control the CI6 by an external controller or computer and can work with our without keypads. The CI6 connects to the RS232 controller with a 9-pin db9 connector. The programming reference follows.

1.0 Terminal Settings

To control the CI6 series amplifier via other control systems, connect a RS-232 cable to the serial control connector on the rear of the CI6 unit and set your computer’s or control unit port settings to match the following configuration:

SETTING	VALUE
Bits per second	19,200
Data bits	8
Parity	None
Stop bits	1
Flow control	None
Emulation	Auto detect

1.1 Command Summary

All commands are enclosed in parentheses. The request can be in some cases a read request (followed by a “?”), or a write request (followed by 0-2 ASCII digits). A read command will return the current setting, and write command will change the setting.

Read request format: (nAA?) where:

( starts the command

n denotes amplifier channel (if required)

AAdenotes the command (may be 1 or 2 letters)

? denotes the read request

)	ends the command
Read Request Example 1.1:
Function	Command	Response
Volume	(1vl?)	returns the volume on channel 1 (0-87)
Write request format (nAA$$) where:
(	starts the command
n	denotes the amplifier channel (if required)

AAdenotes the command (may be 1, 2 or 3 letters !!)

$$	denotes the value to be written if required (leading zero’s ARE necessary)
)	ends the command
Write Request Examples 1.2:
Function		Command	Response
Turn Channel On		(1on)	turns on amplifier channel 1 on
Select Input		(1sl7)	turn amplifier channel 1 to input 7
Set Volume		(1vl50)	turn amplifier channel 1 to volume 50
			(of 87)
Supported Commands

Command Summary

# = numerical zone or amplifier channel value

$$ = second numerical value (may be one or two digits)