Videology 20/21Z404 Communications Manual Download Page 4

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 

Auto Manual  Special 

Zoom Trace Function 

Auto Focusing after zoom 
trace action 

O O 

Auto Focusing in Normal 

Condition 

O X 

Auto Focusing in One 
Shot AF Command 

O O 

Near / Far Action 
(key Action Command) 

X O 

XO 

(*) 

S-Near / S-Far Action 

(key Action Command) 

X O 

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 

 

 

 

Doc # APN 20/21Z704 22X 

Comm. 

Issue Date: 3/25/2005 

Revision: E 

Page 

4

 of 28 

 

Summary of Contents for 20/21Z404

Page 1: ...ssary 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...

Page 2: ...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...

Page 3: ...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 mo...

Page 4: ...l 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...

Page 5: ...ce 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 Focusing Region 50cm infinite Non Focusing...

Page 6: ...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 Prese...

Page 7: ...ion 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 In the position of the microcomputer of...

Page 8: ...end Key Action command Stop NN 75 09 XX YY Start End More than 25ms delay Send Key Action command Mirror NN 75 18 XX YY Received Stop Key command NN 75 09 XX YY Start No Complete Key Action Mirror Key...

Page 9: ...Send Key action Stop Key action command Mirror NN 75 18 XX YY Execute Mirror Action Stop Check Don t execute Negative action User PC Key action command Stop NN 75 09 XX YY Key action command Stop NN...

Page 10: ...nds 2 Section 6 2 10 4 Motion Detection function If the camera detects some movement it displays MD in the upper side of screen and transmits Motion detected Packet Motion Detected Response Packet NN...

Page 11: ...ges in brightness Low Sensitivity of Slow shutter The change of field number is not very sensitive to changes in brightness Sensitivity Level 00 1Fhex 32 levels 00 Highest Sensitivity 1F Lowest Sensit...

Page 12: ...s called PACKET All bytes of the packet are ASCII format The first byte of the packet is called Header The second and third bytes are ID of the camera The forth and the fifth bytes are Command Message...

Page 13: ...Option of command Byte 9 High byte of check sum Byte 10 Low byte of check sum 3 4 Check Sum Method The value of check sum is calculated as follows Check Sum Byte0 Byte1 Byte8 Ex if ID 43 d 2B hex comm...

Page 14: ...camera received the command packet This time is more than 2ms Figure 9 Response Packet Block 3 7 Communication Time Delay When transmitting 1 packet 11 bytes keep 2 milli seconds waiting time between...

Page 15: ...Option R Response Packet Data Indicate Response packet Caution The command was allowed at the camera microcomputer version x x Not described allowed all versions 4 1 Response Packet If the camera rec...

Page 16: ...the Transmission of Response Packet Response Packet Format Set Enable mode Release Disable Mode Example of Commands cam id 00 Command Response Packet 00 00 00 00 AA NNA800XXYY NNA801XXYY 00710000B2 r...

Page 17: ...end Command Response Packet Send 00000000AA Command Response Yes No Start Receive One shot AF command 00 A0 00 00 BB Yes Yes No End No Send 00AAAAAA10 One Shot AF Response Start One Shot AF action Sen...

Page 18: ...Camera ID Key Action NN75PPXXYY PP x Key Action will be activated by this command Key Code See Key action command Power on off NN76PPXXYY PP 00 01 Camera Power ON OFF OFF ON ID check NNA4PPXXYY PP 00...

Page 19: ...ontents Read Zoom Position NNC0XXXXYY 0ZZZRR00YY ZZZ RR x x Current Zoom Lens Position 000 928 hex Digital Zoom Position 00 E0 hex Read Focus Position NNC1XXXXYY 0ZZZ0000YY ZZZ x Current Focus Lens Po...

Page 20: ...ee Key Action Commands 2 ex move 4 steps to tele NN A5 04 00 YY Move Zoom Relative Wide NNA6ZZXXYY ZZ x Move Zoom Lens as received steps from current position 00 FF hex zoom step to move Wide Moving M...

Page 21: ...t Position NNC3PZZZYY P ZZZ X X 0 7 hex Index of External Preset Position total 8 preset position Zoom Position 000 928 hex Save received Focus position as External Preset Position NNC4PZZZYY P ZZZ X...

Page 22: ...splay mode R 0 OFF R 1 ON Backlight state R 0 OFF R 1 ON Flickerless state R 0 OFF R 1 ON Auto Backlight mode R 0 OFF R 1 ON Read Camera Version NN7DXXXXYY RR000000YY RR x Current Camera u com Version...

Page 23: ...Y PP x 00 27 Shutter counter Set AGC Level NN87PPXXYY PP x 00 hex FF hex AGC level data Read Brightness Level NN88XXXXYY RR000000YY RR x 00 hex 60 hex Brightness level data Read Iris Level NN89XXXXYY...

Page 24: ...Auto Mode Special Indoor Outdoor Manual Push Auto Set White Balance Mode NNB2PPXXYY PP 00 01 02 03 04 05 Auto Mode Special Indoor Outdoor Manual Push Auto Read current Manual WB Mode Data NNB3XXXXYY...

Page 25: ...ode NNB9PPXXYY PP 00 hex FF hex RED adjust data Set BLUE adjust data at Special WB mode NNBAPPXXYY PP 00 hex FF hex BLUE adjust data Read Osd menu On off status NN93XXXXYY IDDD0000YY DD 00 01 0 OSD me...

Page 26: ...st mode Initialize camera to Manufacturer s conditions Toggles Function OSD Off On mode 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F KC_MENU KC_SET_MENU KC_LANGUAGE KC_BL KC_FLICKER KC_SSC_UP KC_SS...

Page 27: ...3A 3B 3C 3D 3E 3F KC_AGC_UP KC_AGC_DN KC_LED KC_AUTOZOOM KC_AGC_OFF KC_CINEMA KC_MOSAIC KC_ART KC_AUTO_PAN KC_PAN_RIGHT KC_PAN_LEFT KC_TILT_UP KC_TILT_DN Increase AGC gain Decrease AGC gain External...

Page 28: ...3 251 712 Please also visit our WEB site at http www videologyinc com Please note that data in this application note is subject to change without notification Videology Imaging Solutions Inc is an ISO...

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