Matrix-orbital LK202-24-USB Manual do Utilizador descarregar pdf (Página 24)

LK202-24-USB rev 1

5.1.12 Read module type (254 55)

This command will return, the model type value of the module. Values for various modules at the time of

this publication are as follows:

LCD0821 - 0x01 LCD2021 - 0x03 LCD1641 - 0x04

LCD2041 - 0x05 LCD4021 - 0x06 LCD4041 - 0x07

LK202-25 - 0x08 LK204-25 - 0x09 LK404-55 - 0x0A

VFD2021 - 0x0B VFD2041 - 0x0C VFD4021 - 0x0D

VK202-25 - 0x0E VK204-25 - 0x0F GLC12232 - 0x10

GLC12864 - 0x11 GLC128128 - 0x12 GLC24064 - 0x13

GLK12864-25 - 0x14 GLK24064-25 - 0x15 GLK128128-25 - 0x21

GLK12232-25 - 0x22 LK404-AT - 0x31 VFD1621 - 0x32

LK402-12 - 0x33 LK162-12 - 0x34 LK204-25PC - 0x35

LK202-24-USB – 0x36

The LCD will return a one-byte hex value.

5.1.13 Set RS232 port speed (254 57 [speed])

This command sets the RS232 port to the specified [speed]. The change takes place immediately. [speed] is

a single byte specifying the desired port speed. Valid speeds are shown in the table below. The speed can be

manually reset to 19,200 baud in the event of an error during transmission (including transmitting a value

not listed below) by setting the "manual override" jumper on the module during power up. This command is

ignored until this jumper is removed again.

Speed Value Speed

FF Hex 1200 baud

81 Hex 2400 baud

20 Hex 9600 baud

0F Hex 19200 baud

5.1.14 Set Serial Number (254 52 [byte1] [byte2]

Modules may be delivered with the serial number blank. In this case the user may set the desired 2 byte

serial number using this one time only command.

Upon the execution of this command, the module will echo these two bytes back over the RS-232 interface.

The serial number may be set only once. Any future attempt to execute this command will result in no

change and the module will return to the originally set serial number.

5.1.15 Read Serial Number (254 53)

This command will return a two byte hex value, over the RS-232 interface, the serial number of the module

as it was previously stored.

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Matrix-orbital LK202-24-USB Manual do Utilizador Página 24