Extron Electronics MSV0502 - Manual (Page 16)

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MSV0502 OPERATION MANUAL - v1.0 4/26/02

2002 - INLINE, INC.
Remote Operation
RS-232 Control
The MSV0502 RS-232/RS-422/RS-485 serial control port accepts serial commands from a control
system, computer serial port, or any other device capable of sending out serial ASCII commands at
compatible baud rates. A complete listing of RS-232/RS-422/RS-485 codes is included below.
Communication Protocol:
•
8 data bits
•
1 stop bit
•
No parity check
•
9600 baud (factory default setting)
Protocol Structure
All commands sent to the unit must contain a leading character, the actual command, and an ending
character. The MSV0502 can accept multiple commands, storing them in a buffer. It immediately
executes each command in the order it was issued.
The MSV0502 recognizes [ and ] as leading and ending characters, also called Command Codes. The
factory default for the Command Code is [ ]. The Command code can be changed via RS-232. Some
sample command codes follow. For example:
This part of the command string... Represents:
[ The leading character
ADDRxx The actual command.
] The ending character
This command string... Means:
[ADDRxx] Assign an address to the unit, 01 to 98, where xx
= 01-98.