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This document defines all the command and messages exchanged between the Master (a PC or the other
controller) and the Slave (the displays).
It also describes the ways to send or read the commands or the messages.
1. Protocol definition
SICP stands for “Serial Interface Communication Protocol”.
The protocol is specifically designed to allow data communication in half duplex multi-point environments, but it can also be used
for half duplex point-to-point RS-232C communication
.
2. Communication characteristics
A half duplex communication is implemented starting from the concept of a master-slave structure, where the display is
supposed to be the slave.
The first action is always taken by the master, which can be either a PC or any controlling device (acting as server) interfaced to
the monitor. After sending a command or a request in the appropriate format the master receives from the slave an
acknowledgement, which tells the transmitter whether the command is not valid (or not executable, anyway) or it is accepted. In
case of a request, the requested information is sent back and it becomes the acknowledgement by itself.
3. How to connect control devices (simple null modem cable)
4. Hardware Protocol
Baud rate : 19200 bps
Data bits : 8 bit
Parity bits : None
Stop bits : 1 bit
Handshake : None
User Manual
SICP (Serial Interface Communication Protocol)
*9-9: IR LOOP signal
