18
Command Summary
6
Commands
6.1
Communication
1.1
Change
Baud Rate
Dec
Hex
ASCII
254 57
FE 39
■
9
Speed
Speed
Speed
v8.0
Immediately changes the baud rate. Not available in I2C. Baud rate can be temporarily forced to 19200 by a
manual override.
Speed
Byte
Valid settings shown below.
Table 16: Accepted Baud Rate Values
Rate
9600 14400 19200 28800 38400 57600 76800 115200
Speed
207
138
103
68
51
34
25
16
1.2
Change I2C
Slave Address
Dec
Hex
ASCII
254 51
FE 33
■
3
Address
Address
Address
v8.0
Immediately changes the I2C write address. Only even values are permitted as the next odd address will become
the read address. Default is 80.
Address
Byte
Even value.
1.3
Transmission
Protocol Select
Dec
Hex
ASCII
254 160
FE A0
■
á
Protocol
Protocol
Protocol
v8.0
Selects the protocol used for data transmission from the display. Data transmission to the display is not affected.
Must be set to the protocol in use to receive data correctly.
Protocol
Byte
1 for Serial (RS232/RS422/TTL/USB) or 0 for I2C.
1.4
Set a Non-Standard
Baud Rate
Dec
Hex
ASCII
254 164
FE A4
■
ñ
Speed
Speed
Speed
v5.0
Immediately changes the baud rate to a non-standard value. Speed must be a whole number between 977 and
153800. Due to rounding, error increases with baud rate, actual baud must be within 3% of desired baud to ensure
accurate communication. Not available in I2C. Can be temporarily forced to 19200 by a manual override.
Speed
Short
Calculations shown below, standard crystal speed is 16MHz.
( )
Equation 1: Speed Byte Calculation
( ( ))
Equation 2: Actual Baud Rate Calculation
| |
Equation 3: Baud Rate Error Calculation
