50 lau_config_getbrtrangedeltam (0x0122), Backlight level down range, Lau_config_getbrtrangedeltam (0x0122) – Beijer Electronics SCOM Protocol EN User Manual

Page 88

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Command Reference

88

Beijer Electronics, MAEN975

6.50 LAU_CONFIG_GETBRTRANGEDELTAM

(0x0122)

Backlight Level Down Range

By default, the backlight level of a Beijer Electronics Nautic Monitor can be changed
within the full range of 0 to 255 steps by using the front panel keys. To allow the
backlight level change within a limited range, a delta value can be defined. The delta
value sets the upper and lower backlight level range limits relative to the ECDIS
backlight value (which is set by the SCOM command “BRT”). Normally, upper and
lower range limits are defined as 255 for full range support. The value returned by
this command is the lower range limit relative to the ECDIS backlight level.

Supported since Firmware Version
MT230 Nautic Monitor: 1.0

Command Stream

Response Message (Acknowledge)

Response Message (Negative Acknowledge)
Under normal operation conditions, a device never sends a negative acknowledge in
response to this command.

Maximum Lr for this Command
9

0

1

2

3

4

5

6

7...8

9

0x07

ADR

0x4C

0x41

0x55

0x02

ICHKH 0x01

0x22

ICHKD

0

1

2

3

4

5

6

7

8

0x06

ADR

0x4C

0x41

0x55

0x01

ICHKH

Ret

ICHKD

Ret

Value:

0...255

Type:

Byte

Length:

1

Description: Lower backlight level range limit relative to the ECDIS

backlight level

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