Basler SCOUT LIGHT User Manual Page 144
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Using Multiple Cameras on a Single Bus and Managing Bandwidth
136 Basler scout light
Fig. 36: Examples of Mixed Device Types
So what does all of this mean when we are trying to share bandwidth between devices operating at
different speeds on the same bus? Some examples will provide the best explanation.
Example 1: Assume that you have two cameras on the bus and that you want them to capture and
transmit images simultaneously. Camera 1 is operating at S400 speed and the camera 2 is
operating at S800 speed. Also assume that you want camera one to use 40% of the available
bandwidth and camera 2 to use 60%. How would you set the packet size on the cameras so that
each one would use the desired portion of the bandwidth available in each bus cycle?
For camera 1, the calculation would be:
0.40 x 4096 = 1638.4 bytes per packet
(the packet size must be set to a multiple of 4, so we would round the setting down to 1636)
For camera 2, the calculation would be:
0.60 x 8192 = 4915.2 bytes per packet
(the packet size must be set to a multiple of 4, so we would round the setting down to 4912)
So in this case, you would set the packet size for camera 1 to 1636 bytes and for camera 2 to 4912
bytes.
Note
The driver will always set each device to operate at the fastest possible speed
for the current network configuration. This behavior of the driver can’t be
changed by the user.
PC PC
1394a
Adapter
1394a
Adapter
1394b
Adapter
1394b
Adapter
1394b
Adapter
1394a Hub 1394b Hub
S400
S800
S800
S800
S400 S400 S800
1
1394a
Camera
2
1394b
Camera
3
1394b
Camera
Transmits
at S400
Transmits
at S400
Transmits
at S800
4
1394a
Camera
5
1394b
Camera
Transmits
at S400
Transmits
at S400
6
1394a
Camera
7
1394b
Camera
Transmits
at S400
Transmits
at S800
- Basler scout light 1
- Table of Contents 5
- Table of Contents 6
- Basler scout light iii 7
- 1.1 Models 9
- 1.2 General Specifications 10
- 4 Basler scout light 12
- Wave Length (nm) 12
- Quantum Efficiency (%) 12
- 6 Basler scout light 14
- Relative Response 14
- 1.4 Mechanical Specifications 15
- 8 Basler scout light 16
- 10 Basler scout light 18
- Basler scout light 11 19
- 1.7.2 Ventilation 20
- 1.8 Precautions 21
- Warranty Precautions 22
- 2 Software and Hardware 23
- Installation 23
- 16 Basler scout light 24
- 3 Tools for Changing Camera 25
- Parameters 25
- 18 Basler scout light 26
- 4 Functional Description 27
- Functional Description 28
- 20 Basler scout light 28
- CCD Sensor 28
- (slA750-60fm Only) 29
- 22 Basler scout light 30
- CMOS Sensor 30
- 5 Physical Interface 31
- Numbering 32
- 5.2.3 Pin Numbering 34
- 5.3 Connector Types 35
- 5.4 Cabling Requirements 36
- Physical Interface 37
- Basler scout light 29 37
- Fig. 10: I/O Cable 37
- 30 Basler scout light 38
- 5.6 Camera Power 39
- 5.7 Input and Output Lines 40
- 5.7.2.2 Input Line Schematic 41
- 5.7.3 Output Line Description 42
- Basler scout light 35 43
- Section 8.2 on page 88 44
- 6 Image Acquisition Control 45
- Image Acquisition Control 46
- 38 Basler scout light 46
- (duration determined by the 48
- One Software Trigger 49
- Software Triggers 50
- 44 Basler scout light 52
- 6.3.1 Exposure Modes 53
- Frame N-1 Frame N 54
- Exposure 54
- Hardware Trigger Transition 56
- Hardware Trigger Transitions 57
- 6.4 Exposure Time Parameters 59
- 52 Basler scout light 60
- "Absolute" Settings 61
- Readout 62
- Basler scout light 55 63
- Fig. 20: Overlapped Exposure 63
- 6.7 Trigger Ready Signal 65
- 58 Basler scout light 66
- (slA750-60fm Only) 67
- 60 Basler scout light 68
- 6.8 Exposure Active Signal 69
- 6.9 Acquisition Timing Chart 70
- Basler scout light 65 73
- // Resulting Framerate 73
- Basler scout light 67 75
- 136.47 µs 176.76 µs 181.64 µs 75
- Allowed Frame Rate 76
- 72 Basler scout light 80
- 74 Basler scout light 82
- 7 Pixel Data Formats 83
- 7.2 Pixel Data Formats 84
- (Equivalent to DCAM Mono 16) 86
- 7.2.3 Mono 12 Packed Format 88
- 7.2.4 YUV 4:2:2 Packed Format 90
- Pixel Data Formats 93
- Basler scout light 85 93
- 8 I/O Control 95
- Physical Output Line 96
- 90 Basler scout light 98
- Basler scout light 91 99
- Fig. 26: Timer Signal 99
- I/O Control 100
- 92 Basler scout light 100
- Basler scout light 93 101
- 94 Basler scout light 102
- Basler scout light 95 103
- Basler scout light 97 105
- 98 Basler scout light 106
- 9 Standard Features 107
- Standard Features 110
- 102 Basler scout light 110
- 9.2 Black Level 112
- 9.3 Digital Shift 113
- Basler scout light 109 117
- // Disable digital shift 117
- 110 Basler scout light 118
- // Enable digital shift by 2 118
- 9.4 Area of Interest (AOI) 119
- Setting the AOI 120
- 114 Basler scout light 122
- 9.5 Reverse X 123
- Setting Reverse X 124
- 9.6 Disable Parameter Limits 125
- 9.7 Debouncer 126
- Setting the Debouncer 127
- 9.8 Trigger Delay 128
- 9.9 Acquisition Status 129
- 9.10 Test Images 130
- Basler scout light 123 131
- Fig. 33: Test Image One 131
- 124 Basler scout light 132
- 126 Basler scout light 134
- 9.12 Configuration Sets 135
- 9.12.1 Saving User Sets 136
- Basler scout light 129 137
- 130 Basler scout light 138
- Basler scout light 131 139
- 132 Basler scout light 140
- Single Bus and Managing 141
- Bandwidth 141
- Basler scout light 135 143
- S400 S400 S800 144
- Basler scout light 137 145
- 138 Basler scout light 146
- // RecommendedPacketSize 146
- 11.1 Tech Support Resources 147
- 11.2 Obtaining an RMA Number 147
- 11.4 Troubleshooting Charts 149
- Troubleshooting and Support 150
- 142 Basler scout light 150
- 11.4.2 I Do Not Get an Image 151
- 144 Basler scout light 152
- Basler scout light 145 153
- 146 Basler scout light 154
- Basler scout light 147 155
- Technical Support 156
- To get the tool, go to: 157
- 150 Basler scout light 158
- Revision History 159
- Revision History 160
- 152 Basler scout light 160
- Feedback 161
- Feedback 162
- 154 Basler scout light 162
- Basler scout light 155 163
- 156 Basler scout light 164
- Basler scout light 157 165
- 158 Basler scout light 166
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