Moxa MD-119-X1 [41/44] Pot potentiometer control

MD-119 HW Manual Display UART Command

C-7

POT (Potentiometer Control)

The unit may allow the backlight to be controlled by the local control (potentiometer/keypad) mounted on the

front of the unit, by the remote control or by the combination of the two. This command provides means to

enable/disable the local control. LEN = one data byte.

0x00

Disables the local control. Backlight controlled only by the remote control.

0xFF

Enables the local control. Backlight is controlled by both the remote control and the local control.

(Default)

Note: In this setting, with the BRT command at 100%, the local control will have full dimming range.

This is the initial setting when a unit is powered on.

If the data checksum is valid, the unit will reply to this command with an ACK attention code. The DATA field

will indicate the resulting control setting. If an invalid data checksum was received and the message was not

broadcast and RS-485, the unit will reply with a NAK attention code and the current control setting.

SNB (Serial Number Query)

This query is sent to the unit in order to identify the unit serial number. No data shall be sent with this query.

The display will reply to this command with an ACK attention code. The DATA field will be set to an

text string to indicate the specified Serial Number, e.g: “12345”.

Examples:

Command Display Serial Number

0x07 0xFF 0x53 0x4E 0x42 0x00 0x16

Acknowledge Type/Model Number “12345”:

0x06 0xFF 0x53 0x4E 0x42 0x05 0x12

0x31 0x32 0x33 0x34 0x35 0x00

TYP (Type/Model/Number Query)

This query is sent to the display in order to identify the unit type by its model number / part number. No data

shall be sent with this query.

The display will reply to this command with an ACK attention code. The DATA field will be set to an

text string to indicate the specified Type/Model Number, e.g: “MD-119-TN”.

Examples:

Command Type/Model Number

0x07 0xFF 0x54 0x59 0x50 0x00 0xFC

Acknowledge Type/Model Number “MD-119-TN”:

0x06 0xFF 0x54 0x59 0x50 0x0C 0xF1

0x4D 0x44 0x2D 0x31 0x31 0x39 0x2D

0x54 0x4E 0x20 0x20 0x20 0x77