MD-219 Hardware Manual
Display UART Commands
C-8
CT? (Current Temperature Query)
Send this command to Query Current Temperature
DATA
Return Current Temperature
Examples:
Send
CT?
command to Query Current Temperature
0x07
0xFF
0x43
0x54
0x3F
0x00
0x23
ACK
0x06
0xFF
0x43
0x54
0x3F
0x01
0x23
DATA
IDCHK
ACK 0 degree Celsius (-64 ~ + 127)
0x06
0xFF
0x43
0x54
0x3F
0x01
0x23
0x00
0xBF
ACK -128 degree Celsius (over representation range)
0x06
0xFF
0x43
0x54
0x3F
0x01
0x23
0x80
0x7F
SS? (System Status Query)
Send this command to Query System Status information (INFO button item)
DATA
Return Current Temperature
Bit0
1 : AC Input Power is “OFF” , 0 : AC Input Power is “ON”
Bit1
1 : DC Input Power is “OFF” , 0 : DC Input Power is “ON”
Bit2-7
Reserved
Examples:
Send
SS?
command to Query System Status
0x07
0xFF
0x53
0x53
0x3F
0x00
0x14
ACK
0x06
0xFF
0x53
0x53
0x3F
0x01
0x14
DATA
IDCHK
MCC (OSD Control Command)
This command gives remote access to the unit’s OSD menu settings. The commands are transmitted in the
DATA field.
NOTE
We cannot guarantee that all commands will be supported by future Moxa products.
If the checksum is valid, the unit will reply to this command with an ACK attention code, where the data field
contains the original “MCC” command followed by acknowledge from the controller. If the checksum is invalid
and the message was not broadcast, the unit will reply to this command with a NAK attention code, where the
data field contains the original command or some status of some functions.
NOTE
The MCC command is not supported by Moxa panel computers, since they do not have an OSD menu.
We assume that you already know how to send, receive, and interpret the commands after having studied the
examples before to the “MCC” command table below. The list below is a compressed version of the HEX values
you need to send and will apply to all units (ADDR set as “FF”). For readability, the prefix “0x” has been
removed from the table and is shown as a complete HEX string with values from 00 to FF (2 by 2 letters). Every
command will contain the “MCC” (0x4D, 0x43, 0x43) ASCII letters as a default indicator.
