Videology 20/21Z704, 20/21Z404 Communications Manual
Color CCD Auto Focus Zoom
This document provides technical information for the user. Videology reserves the right to
modify the information in this document as necessary. The customer should make sure that
they have the most recent manual version. Videology holds no responsibility for any errors
that may appear in this document.
Videology Imaging Solutions, Inc. USA
Communication Manual
Camera 22 X ZOOM
37M Lark Industrial Parkway
Greenville, RI 02828
Tel: 401-949-5332
Fax: 401-949-5276
IMAGING SOLUTIONS INC.
20/21Z704 20/21Z404
Information may change without notice.
Videology Imaging Solutions, B.V. Europe
NL-5405 AG Uden, The Netherlands
®
Liessentstraat 2B
Tel: +31 (0) 413-256261
Fax: +31 (0) 413-251712
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Issue Date: 3/25/2005
Table Of Contents
1.
Features: ......................................................................................................... 3
2. BASIC FUNCTIONS ............................................................................................ 3
2.1. Zoom/Focus Lens Position Range .................................................................. 3
2.2. Zoom Lens Speed Mode............................................................................... 3
2.3. One Shot Focus .......................................................................................... 3
2.4. Zoom Trace Mode ....................................................................................... 4
2.5. Auto Zoom................................................................................................. 4
2.6. Focus Lens Control Mode ............................................................................. 4
2.7. Focus Lens Operation .................................................................................. 4
2.8. Rain Focus Mode......................................................................................... 5
2.9. Preset Operation......................................................................................... 6
2.9.1. Internal Preset Mode............................................................................. 6
2.9.2. External Preset Mode ............................................................................ 6
2.9.3. Preset Response Packet......................................................................... 6
2.9.4. Key Action Command (*NN75PPXXYY)...................................................... 7
2.10. General Operation ................................................................................. 10
2.10.1. Camera ID ..................................................................................... 10
2.10.2. Camera ID check Mode .................................................................... 10
2.10.3. Lens Initial Action ........................................................................... 10
2.10.4. Motion Detection function................................................................. 10
2.10.5. Initial LOGO change ........................................................................ 10
2.10.6. Freeze/Reverse function................................................................... 10
2.11. Sensitivity Level of Slow shutter .............................................................. 11
3. Communication Format .................................................................................... 12
3.1. Parameter of RS-232C............................................................................... 12
3.2. Packet Structure....................................................................................... 12
3.3. Bytes of a packet...................................................................................... 13
3.4. Check Sum Method ................................................................................... 13
3.5. Response from the camera......................................................................... 14
3.6. Response Time ......................................................................................... 14
3.7. Communication Time Delay ........................................................................ 14
3.8. Advice for communication .......................................................................... 15
4. Command List................................................................................................. 15
4.1. Response Packet....................................................................................... 15
5. General Control Commands -1 .......................................................................... 18
6. Focus Control Commands ................................................................................. 19
7. Zoom/Focus Operation Commands – 1 ............................................................... 19
8. Zoom/Focus Operation Commands – 2 ............................................................... 20
9. Preset Control Commands ................................................................................ 21
10. Camera Status Control Commands – 1 ............................................................ 22
11. Camera Status Control Commands – 2 ............................................................ 23
12. Camera Status Control Commands - 3 ............................................................ 24
13. Camera Status Control Commands – 4 ............................................................ 25
14. Key Action Commands - 1 (*NN 75 PP XX YY) .................................................. 26
15. Key Action Commands - 2 (*NN 75 PP XX YY) .................................................. 27
16. Contact ...................................................................................................... 28
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1. Features:
• High Sensitive ¼ inch Super HAD CCD
• Built in Auto Focus / Auto Iris
• Optical Power Zoom Lens
20/21xx4/22x: 22x
• Digital Zoom
20/21xx4/22x: 10x (220x Zoom)
• RS-232C, RS-232 TTL
RS-422, RS-485 communication
• Mirror Image function
• Negative / Positive function
• Preset function
• OSD (On Screen Display)
2. BASIC FUNCTIONS
20/21xx4/22x series
Zoom/Focus Lens Control
2.1. Zoom/Focus Lens Position Range
Optical zoom lens position range
→ 000 hex ~ 928 hex
Focus lens position controllable range
→ 0FD hex ~ 516 hex (It is not specified)
Digital zoom position
→ 00 hex ~ E7 hex
Quick Zoom Trace Mode (QZT)
Non Zoom Trace Mode (NZT)
: When the zoom lens moves, the focus lens doesn’t move. The picture will not
focused while the zoom lens moves to the target position.
2.2. Zoom Lens Speed Mode
Normal (Slow) Zoom Mode
: Zoom lens speed is slow.
Quick Zoom Mode
: Zoom lens speed is faster than Slow Zoom Mode.
2.3. One Shot Focus
The Camera starts the auto focusing action once.
When the One Shot Focus Command is sent, the focus lens moves to adjust the focus on
the object.
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2.4. Zoom Trace Mode
Zoom Trace: If the zoom lens moves, the focus lens also moves. The focus lens will be
moved to a certain calculated position. So, the picture will be focused while the zoom lens
moves to the target zoom position.
Slow (Normal) Zoom Trace Mode (SZT):
It is a zoom trace mode that the zoom speed is Slow (normal).
2.5. Auto Zoom
The zoom lens will focus continually within the zoom range.
2.6. Focus Lens Control Mode
Auto Focus Mode
→ User cannot control the focus lens.
Manual Focus Mode
→ User can control focus lens in the restricted range calculated by the camera
microcomputer.
Special Focus Mode
→ User can control focus lens. The controllable range of the focus lens is the total
focus range (0FD ~ 516 hex). In this mode, the focus lens is controlled by the user
only.
(!) Auto/Manual mode is called as default.
(!!) Even if the current focus mode is Special Mode, one can set the Auto and Manual Mode
as default focus mode.
2.7. Focus Lens Operation
Focus Mode
Contents
Zoom Trace Function O O X
Auto Focusing after zoom
trace action
Auto Focusing in Normal
Condition
Auto Focusing in One
Shot AF Command
Near / Far Action
(key Action Command)
S-Near / S-Far Action
(key Action Command)
Controllable Focus Range Not Specified Not Specified Full Range
(*) X: in case the basic mode is Auto mode
O: in case the basic mode is Manual Mode
Auto Manual Special
O O X
O X X
O O O
X O XO (*)
X O O
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2.8. Rain Focus Mode
The Rain Focus Mode protects focusing at certain distance. If the object is placed within the
rain focus distance, the camera won’t focus to the object
• 1m rain focus mode
• 50cm rain focus mode
• 10cm rain focus mode
• 1cm ~ 10cm rain focus mode
(!!) See the Focus Control Commands
Non Focusing Region
(0cm ~ 50cm)
Camera 50cm
Figure 1. 50cm rain focus mode
Focusing Region
(50cm ~ infinite)
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2.9. Preset Operation
Figure 2. Preset Position Moving Action
2.9.1. Internal Preset Mode
In this mode, the camera writes the
Zoom/Focus/Digital zoom position
into the Internal Nonvolatile
Memory of the camera.
Total 64 presets
2.9.2. External Preset Mode
In this mode, the camera writes the
Zoom/Focus/Digital zoom position
into the Internal Volatile Memory
of the camera.
Total 8 presets
2.9.3. Preset Response Packet
It is a response that the zoom/focus
lens finishes moving to the selected
preset position.
Transmission of this packet is
decided by the Transmission Preset
Response Packet (see Preset
Control Commands). (Section 10)
Preset Response Packet: * NN 11
11 11 YY
Receive command
(Move to Internal
Preset No.7)
* 00 C8 07 00 CC
Received Packet
is Correct?
Yes
Send Command
Response Packet?
No
Start
Moving to the Preset Position
Arrive at the Preset
Position No.7?
No
Yes
No
Send
*00000000AA
(Command
Response)
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Yes
Send Preset
Response Packet?
No
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Issue Date: 3/25/2005
Yes
Send
*00111111B0
(Preset
Response)
Figure 3. External Preset Position Saving Method Figure 4. Internal Preset Position Saving Method
Select External Preset Number
Select Internal Preset Number
Writes zoom lens position
Writes focus lens position
Writes digital position
2.9.4. Key Action Command (*NN75PPXXYY)
Key Code
: It is a command option of the key
action command.
The Key Stop command of key action
command (*NN7509XXYY)
: This command must be followed by
the key action commands.
Continuous key action.
: If you want continuous key action
service, do not send the key stop
command until you want to stop the
continuous key action.
See the Key Action Command List.
Move zoom/focus lens to internal
preset position what you want to
save.
Writes this position as Internal
preset position
Figure 5. Zoom in (Tele) action It is a basic camera control command.
End
Receive Key Tele command
(* NN 75 01 XX YY)
Start Tele Action
Received Stop Key?
(*NN 75 09 XX YY)
Continuous
Tele action
No
Yes
Stop Tele Action
(In the position of the microcomputer of camera)
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Figure 6. Key Action command “Mirror”
(
(
)
<Host> <Camera>
Send Key Action command “Mirror”
(* NN 75 18 XX YY)
More than 25ms delay
Send Key Action command “Stop”
* NN 75 09 XX YY)
Receive Key Action command “Mirror”
(* NN 75 18 XX YY)
Key Action “Mirror”
No
Received Stop Key
command?
*NN 75 09 XX YY
Yes
Complete Key Action
“Mirror”
End
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Figure 7. Successive Key Action commands
”
g
“Mirror” “Negative”
(False Application)
<Host> <Camera>
User
(PC)
Key action command “Mirror”
* NN 75 18 XX YY
Don’t Send Key action “Stop
Key action command “Negative”
*
Execute
Mirror Action
Stop Check
Don’t execute
Negative action
(Right Application)
<Host> <Camera>
Key action command “Mirror”
User
(PC)
* NN 75 18 XX YY
Key action command “Stop”
*
Key action command
“Ne
ative”
Key action command “Stop”
* NN 75 09 XX YY
Execute
Mirror Action
Stop Check
Execute
Negative action
Stop Check
(!!) User must send Key Action command “STOP” before the next command.
If you don’t send the Key action command “STOP”, the camera will not operate on
the Next Key action command.
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