4. RS-232 Commands:
Extended control of the M3 system can be performed over the RS232 port. This port can be used to control the device
from a Programmable Logic Controller (PLC), or manually from a Terminal style program, such as Hyperterminal. The
protocol is human readable, allowing a technician to enter simple control commands. This port provides playback
control, diagnostics, system setting adjustments, and downloading of new messages into the memory card of the M3
system. Each command and associated string must be followed by control, line feed or <CR><LF>.
The RS232 protocol is 8 data bits, 1 stop bit, no parity, no flow control. The default baud rate is 115,200.
The following commands are supported by the M3 system over this port.
4.1.
System functional commands
Play
snippet
PLY
(
I
)
Stop
playing
STP
(ALL)
System reset
RST
Initiate
upload
file
ULD
Initiate
download
file
DLD
Delete
file
DEL
4.2.
System configuration commands
RS232 Baud Rate
SPD
Restore Default Configuration
CFG
Format
Memory
Card
FMT
Format and Restore Configuration
SHP
Set Delay time before play
DLY
Set Pause time between plays
PAS
Set Number of plays for each trigger
PLS
Set message Priority (Disable message) PRI
4.3.
System description commands
Display system information
SYS
List
all
commands
LST
Display message Listing
DIR
4.4.
Enhanced System commands
Set
Bass
BAS
Set Treble
TRB
Set Time
TIM
Set
Date
DTE
M3 User's Manual V 1.0 Revised 13, Sept 2011
Page 14
