Rs232 Hex Commands - BOXLIGHT CLEVERTOUCH 75 CM Pro User Manual

RS232 HEX Commands

Protocol Test Steps
• Before testing, please know the board type you have. There are two types of board. The UART 0 and
UART 1 connections of the these boards are explained below:
1. RJ12 is connected to UART 0, DSUB9 is connected to UART 1. Therefore, UART 0 and UART 1 could
be tested separately in this type of the board
2. RJ12 and DSUB9 both are connected to UART 0. UART 1 is supported for OPS module but not
reachable. Therefore, only UART 0 could be tested in this type of the board.
• Activate HEX protocol on Display.
a. Enter Display Settings > Signage Settings > Controls menu
b. Change the ASCII option to HEX in UART0 or UART1 sub-menu item
• Open any serial port communications program (e.g Realterm). Configure serial communication settings as
below:
Baud Rate
Parity
Data Bits
Stop Bits
Handshake
• Note that UART0 default value: ASCII, UART1 default value: HEX
In the tables given below, XY represents are variable byte.
All byte values are hexadecimal.
Error Responses
• NAK reply: 15
• Error reply: 1C 00 00 When the display cannot execute the received command for any reasons, it returns
: 19200 for UART0, 9600 for UART1
: None
8
1
: None
When the display cannot understand the received command, it returns this value. In
such a case, check the sending code and send the same command again.
this value. In such a case, check the sending code and the setting status of the display.
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