RS232Constant Current Controllers Instructions

• The manual knob (INS) or external RS232 program control (EXT) can be switched via the switch on the LED dimmer control panel.
• In order to prevent the occurrence of "overlap" of RS232 character data transmission, after transmitting a set of control codes, it should wait for the controller to reply the handshake code, and then transmit the next group of control codes

RS232 terminal pin description

Connector Type -

• LED Controller: SUB 9 pin connector (female)
• RS232 cable: SUB 9 pin connector (male)

Pinout Description:

• Please note that the controller and the computer between the RS232 signal transmission line does not require jumper, please point to point connection can be directly

Code writing instructions

Communication protocol:

• (Buad Rate):9600 bps(Buad Rate)
• Data bits: 8
• Parity check: None
• Stop bits: 1
• Flow Control: None
• 

The format of the data transferred from the computer to the controller is as follows. The data format 
transferred from the computer to the controller is as follows:
Controller to string mode control channel +;, "+ brightness value + newline symbol"“
”
PS:Note that the brightness value range is 0 ~ 255, input greater than 255 will be regarded as 255
(a).When the controller receives the first character, the user must send the next character within 0.2 seconds,
 otherwise it will returnE[0x0d][0x0a] 
(b).When the controller receives the end character[0x0a]“
”, If the instruction is correct, the controller will return the user into the string, for example:
    Set the CH1 LED to the brightest and the command in RS232
      [Computer - & gt; Controller]:1,255[0x0d][0x0a]
      [Controller - & gt; Computer]:1,255[0x0d][0x0a]
    The CH1 LED to the darkest, the command in the RS232
      [Computer - & gt; Controller]:1,0[0x0d][0x0a]
      [Controller - & gt; Computer]:1,0[0x0d][0x0a]
    Set CH1 to 100, CH2 to 150, CH3 to 200, and CH4 to 255
      [Computer - & gt; Controller]:1,100,2,150,3,200,4,255[0x0d][0x0a]
      [Controller - & gt; Computer]:1,100,2,150,3,200,4,255[0x0d][0x0a]
    The CH10 LED to the darkest, the command in the RS232
      [Computer - & gt; Controller]:10,0[0x0d][0x0a]
      [Controller - & gt; Computer]:CH not Available![0x0d][0x0a]
    Communication error or character timeout
      [Computer - & gt; Controller]:10[0x0d]0x0d]
      [Controller - & gt; Computer]:E[0x0d][0x0a]