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Communications Protocol
Message
Iris
Auto IRIS
Manual IRIS (EI OFF)
Manual IRIS (EI ON)
Iris Level +
Iris Level -
Iris Level Preset
Iris Level Direct
Manual Iris Stop +
Manual Iris Stop -
Manual Iris Stop Preset
Manual Iris Stop Direct
Backlight
BLC OFF
Multi BLC ON
Multi BLC Weight -
Multi BLC Weight +
Multi BLC Weight Preset
Multi BLC Weight Direct
Multi BLC Bright -
Multi BLC Bright +
Multi BLC Bright Preset
Multi BLC Bright Direct
Center BLC ON
Center BLC Weight Preset
Center BLC Weight Direct
Center BLC Area Preset
Center BLC Area Direct
Mask BLC ON
Mask BLC Area Preset
Mask BLC Area Direct
BLC ON
BLC by Face Detect
Shutter
Shutter Speed +
Speed
Shutter Speed -
Shutter Speed Set Mode
Shutter Speed OFF
Shutter Long Direct
Shutter Short Direct
Sense Up +
Sense Up -
Sense Up Direct
ELS OFF
ELS ON
CS: Checksum
FF: Terminator
A0
05
00
CS FF
A0
05
01
CS FF
A0
05
02
CS FF
A0
05
0B CS FF
A0
05
0C CS FF
A0
05
0F CS FF
A0
05
13
0p
0q CS FF
A0
05
15
CS FF
A0
05
16
CS FF
A0
05
19
CS FF
A0
05
1D p
CS FF
A0
06
00
CS FF
A0
06
01
CS FF
A0
06
04
00
CS FF
A0
06
04
01
CS FF
A0
06
05
CS FF
A0
06
06
0p
CS FF
A0
06
07
00
CS FF
A0
06
07
01
CS FF
A0
06
08
CS FF
A0
06
09
0p
CS FF
A0
06
0B CS FF
A0
06
0F CS FF
A0
06
10
0p
0q
0r
0s
0t
CS
FF
A0
06
12
CS FF
A0
06
13
0p
0q
0r
0s
0t
CS
FF
A0
06
15
CS FF
A0
06
19
CS FF
A0
06
1D 0p
0q
0r
0s
0t
0u
CS FF
A0
06
33
CS FF
A0
06
20
01
CS FF
A0
07
0B CS FF
A0
07
0C CS FF
A0
07
0E 0p
CS FF
A0
07
0F CS FF
A0
07
11
0p
CS FF
A0
07
12
0p
CS FF
A0
07
1A CS FF
A0
07
1B CS FF
A0
07
1D 0p
CS FF
A0
07
28
CS FF
A0
07
29
CS FF
(Note 3)
(Note 3)
Iris level operation
Returns iris levels to factory defaults [Initial value: 40]
pq: Iris level 0 (Dark) - 100 (Bright) [Initial value: 40]
Aperture operation during manual iris [Initial value: 17]
Returns aperture during manual iris to factory default [Initial value: 17]
p: Aperture 1 (Close) - 17 (Open) during manual iris
Backlight compensation OFF
Backlight compensation multifractionated evaluative metering mode (Backlight compensates
after measuring the light of the entire screen.)
Sensitivity settings during Multi BLC
BLC is easier to determine with a larger value [Initial value: 7]
Returns sensitivity during Multi BLC to factory defaults [Initial value: 7]
p: Direct sensitivity settings 0-15 during Multi BLC [Initial value: 7]
Brightness settings during Multi BLC
Larger value increases brightness when determining BLC [Initial value: 7]
Returns brightness settings during Multi BLC to factory defaults [Initial value: 7]
p: Direct brightness settings 0-15 during Multi BLC [Initial value: 7]
BLC center-weighted metering mode (Backlight compensates after measuring the light mainly in
the center.)
Returns sensitivity settings during Center BLC to factory defaults [Each initial value: 0]
* Center is always 7
Sensitivity settings during Center BLC
p: aspect
0 : 16:9,
1: 4:3
（
）
q: Top(0-7) r: Bottom(0-7) s: Left(0-7) t: Right(0-7) [Each initial value: 0]
Returns center area settings during Center BLC to factory defaults [Each initial value: 0]
Center area settings during Center BLC
p: aspect
0 : 16:9,
1: 4:3
（
）
q: x-position(0-15) r: y-position(0-15) s: x-size(0-15) t: y-size(0-
15) [Initial value: x-position: 7 y-position: 6 x-size: 2 y-size: 4]
*When x-size:0 y-size:0, it becomes 1 area.
BLC mask mode (Backlight compensates after measuring the light, ignoring areas set as mask.)
Return mask area settings during Mask BLC to factory defaults
Mask area settings during Mask
BLC (Note 1)
Returns to the mode before BLC OFF only when BLC OFF
BLC by Face Detection
Increases shutter speed by one notch (Long time mode x 64 – High speed mode 1/10000)
Decreases shutter speed by one notch (Long time mode x 64 – High speed mode 1/10000)
Shutter Speed Mode Settings
0: Prolonged exposure shutter mode, 1: Normal mode, 3: High speed shutter mode
Returns the shutter speed mode setting to normal mode setting
Shutter speed settings during prolonged exposure shutter mode
(0: x1, 1: x2, 2: x4, 3: x8, 4: x16, 5: x32, 6: x64)
Shutter speed settings during high speed shutter mode. The numbers within the brackets refer to the
PAL model (0:1/60 [1/50], 1:1/100 [1/120], 2: 1/250, 3: 1/500, 4: 1/1000, 5: 1/2000,6: 1/4000,
7: 1/10000) [Initial value: 0:1/60 (1/50)]
Increase electronic sensitivity settings
p: Direct increased electronic sensitivity settings
(0: OFF, 1: x2, 2: x4, 3: x8, 4: x16, 5: x32, 6: x64)
After memorizing the current electrical shutter speed, set the shutter speed to 1x (1/60 [1/50]).
(The numbers within the brackets refer to the PAL model.)
Returns the electronic shutter speed to the memorized value when sending ELS OFF.
−10−
Model: GP-HB310
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
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