Beijer Electronics SCOM Protocol EN - Manual (Page 92)

Command Reference
92 Elektronik-Systeme Lauer, MAEN976
6.46 LAU_CONFIG_GETECDISGAMMA
(0x011B)
ECDIS Default Gamma Value
If ECDIS mode is enabled, the backlight and video controller are configured with
predefined settings. This command returns the predefined gamma value used to set-
up the video controller in ECDIS mode.
Supported since Firmware Version
MT223 NAV-230G: 1.0
MT226 NAV-230G: 1.0-DSCALE2
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
Example
Read the predefined gamma value of the monitor type MT223 NAV-230G at address
0.7 (group 0, address 7), which is used in ECDIS mode:
According to the data returned by the monitor at address 0.7 (group 0, address 7),
the predefined gamma value in ECDIS mode is 0 (0x00):
Note:
On devices based on firmware 1.0-DSCALE2, the ECDIS gamma value is not used to set-
up the video controller.
0 1 2 3 4 5 6 7...8 9
0x07 ADR 0x4C 0x41 0x55 0x02 ICHKH 0x01 0x1B 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: Gamma value used in ECDIS mode
0 1 2 3 4 5 6 7...8 9
0x07 0x07 0x4C 0x41 0x55 0x02 0x0D 0x01 0x1B 0xE3
0 1 2 3 4 5 6 7 8
0x06 0x07 0x4C 0x41 0x55 0x01 0x0F 0x00 0xFF