Beijer Electronics SCOM Protocol EN - Manual (Page 99)

Command Reference
Elektronik-Systeme Lauer, MAEN976 99
6.52 LAU_CONFIG_GETDINCONFIG (0x0121)
Digital Input Configuration
Some Lauer Navigation Monitor models are equipped with an expansion port with
digital I/O. The digital I/O pins can be used for remote control with a PLC etc., by
assigning predefined commands to the port. This command returns the command
assigned to the digital I/O port. The digital I/O control has the same priority as
SCOM commands or manual control, because only a pin level change triggers the
command.
Supported since Firmware Version
MT223 NAV-230G: 1.0
MT226 NAV-230G: 1.0-DSCALE2
Command Stream
Response Message (Acknowledge)
0 1 2 3 4 5 6 7...8 9
0x07 ADR 0x4C 0x41 0x55 0x02 ICHKH 0x01 0x21 ICHKD
0 1 2 3 4 5 6 7 8
0x06 ADR 0x4C 0x41 0x55 0x01 ICHKH Ret ICHKD
Ret
Value: 0x00:Command “No operation”
0x01: Command “Set brightness”
0x02: Command “Special functions 1”
0x03: Command “Special functions 2”
Type: Byte
Length: 1
Description: Command assigned to the digital I/O port.
The commands are specified as follows:
No operation
No function assigned to the digital input pins.
Set brightness
Input bits 0…2:
Eight predefined backlight level values.
These values can be configured.
Special functions 1
Input bits 0…1:
Route the value of input pins 0 and 1 to
the output pins 0 and 1.
Input bit 2: 1: Enable analog input to backlight level
control routing.
0: Disable analog input to backlight level
control routing.
Special functions 2
Input bit 0:
1: Enable ECDIS mode.
0: Disable ECDIS mode.
Input bit 1: 1: Enable POT mode.
0: Disable POT mode.
Input bit 2: 1: Disable OSD (video controller) keys.
0: Enable OSD (video controller) keys.