49 lau_config_getdinconfig (0x0121), Digital input configuration, Lau_config_getdinconfig (0x0121) – Beijer Electronics SCOM Protocol EN User Manual

Page 86

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Command Reference

86

Beijer Electronics, MAEN975

6.49 LAU_CONFIG_GETDINCONFIG (0x0121)

Digital Input Configuration

Some Beijer Electronics Nautic 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
MT230 Nautic Monitor: 1.0

Command Stream

Response Message (Acknowledge)

Response Message (Negative 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.

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