Basler raL2048-48gm User Manual Page 52
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Network Related Camera Parameters and Managing Bandwidth AW00118302000
42 Basler racer GigE
Step 3 - Set the Bandwidth Reserve parameter for each camera.
The Bandwidth Reserve parameter setting for a camera determines how much of the bandwidth
assigned to that camera will be reserved for lost packet resends and for asynchronous traffic such
as commands sent to the camera. If you are operating the camera in a relatively EMI free
environment, you may find that a bandwidth reserve of 2% or 3% is adequate. If you are operating
in an extremely noisy environment, you may find that a reserve of 8% or 10% is more appropriate.
Step 4 - Calculate the "data bandwidth needed" by each camera.
The objective of this step is to determine how much bandwidth (in Byte/s) each camera needs to
transmit the frame data that it generates. The amount of data bandwidth a camera needs is the
product of several factors: the amount of image data included in each frame, the amount of chunk
data being added to each frame, the "packet overhead" such as packet leaders and trailers, and the
number of frames the camera is acquiring each second.
For each camera, you can use the two formulas below to calculate the data bandwidth needed. To
use the formulas, you will need to know the current value of the Payload Size parameter and the
Packet Size parameter for each camera. You will also need to know the frame rate (in frames/s) at
which each camera will operate.
Data Bandwidth Needed = Bytes/Frame x Frames/s
Where:
Packet Overhead = 72 (for a GigE network)
78 (for a 100 MBit/s network)
Leader Size = Packet Overhead + 36 (if chunk mode is not active)
Packet Overhead + 12 (if chunk mode is active)
Trailer Size = Packet Overhead + 8
x
1
means round up x to the nearest integer
x
4
means round up x to the nearest multiple of 4
Bytes/Frame
Payload Size
Packet Size
-----------------------------------
1
Packet Overhead Payload Size
4
Leader Size Trailer Size+++=
- Basler racer 1
- Table of Contents 5
- Basler racer GigE iii 7
- Basler racer GigE v 9
- 1.1 Models 11
- 1.2 General Specifications 12
- 1.3 Spectral Response 16
- 1.4 Mechanical Specifications 17
- Photosensitive Surface 18
- 1.4.2 Sensor Line Location 19
- 1.4.3 Lens Adapter Dimensions 20
- 1) 1) 22
- 1.5.1 LWIP TCP/IP Licensing 23
- 1.5.2 LZ4 Licensing 24
- Basler racer GigE 15 25
- 1.7.2 Heat Dissipation 26
- 1.8 Precautions 27
- Warranty Precautions 28
- Read the manual 29
- 20 Basler racer GigE 30
- 2 Software and Hardware 31
- Installation 31
- 22 Basler racer GigE 32
- 3 Tools for Changing Camera 33
- Parameters 33
- 3.3 The pylon SDK 34
- 4 Basler Network Drivers and 35
- 4.1 The Basler Filter Driver 36
- Basler racer GigE 27 37
- General Parameters 38
- Basler racer GigE 29 39
- Basler racer GigE 31 41
- Adapter Properties 44
- 36 Basler racer GigE 46
- 5 Network Related Camera 47
- Parameters and Managing 47
- Bandwidth 47
- 38 Basler racer GigE 48
- Basler racer GigE 39 49
- 40 Basler racer GigE 50
- Basler racer GigE 41 51
- 44 Basler racer GigE 54
- 6 Camera Functional 55
- Description 55
- Basler racer GigE 47 57
- Fig. 12: Camera Block Diagram 57
- 48 Basler racer GigE 58
- 7 Physical Interface 59
- 7.1.1 Pin Numbering 60
- 7.2 Connector Pin Assignments 61
- 7.3 Connector Types 63
- 7.4 Cabling Requirements 64
- 7.4.2 I/O Cable 65
- 7.4.3 Ethernet Cables 65
- 7.5 Camera Power 66
- 7.6 Input and Output Lines 67
- Basler racer GigE 59 69
- Using the Inputs with LVTTL 70
- 7.6.1.2 Input Line Debouncers 71
- 7.6.1.3 Input Line Inverters 72
- Function 72
- Default Input Line Selections 73
- 7.6.2 Output Lines 74
- Basler racer GigE 65 75
- Using the Outputs with LVTTL 76
- 7.6.2.4 Output Line Inverters 77
- Sets user output 1 state 81
- Sets user output 2 state 81
- Not used 81
- 7.6.4 Checking the Line Logic 82
- 7.6.5 I/O Line Response Times 83
- 74 Basler racer GigE 84
- 8 Acquisition Control 85
- 76 Basler racer GigE 86
- Setting the Frame Parameters 87
- 8.2 Controlling Acquisition 88
- 80 Basler racer GigE 90
- Basler racer GigE 81 91
- Related Parameters 92
- 8.2.3 Frame Start Triggering 93
- 84 Basler racer GigE 94
- 8.2.3.4 Frame Timeout 96
- 8.2.4 Line Start Triggering 97
- 88 Basler racer GigE 98
- (duration determined by the 100
- 8.2.5 Exposure Time 102
- (Free Run), Single Frame Mode 105
- Basler racer GigE 97 107
- Frame Start Triggering On 109
- Line Start Triggering On 111
- Partial Closing Frame False 113
- Partial Closing Frame True 115
- Basler racer GigE 109 119
- Basler racer GigE 111 121
- 114 Basler racer GigE 124
- Line Acquisition N 125
- Line Acquisition N+1 125
- Basler racer GigE 117 127
- 5.4 µs 128
- Basler racer GigE 121 131
- 122 Basler racer GigE 132
- 8.3.1 Exposure Active Signal 133
- 8.3.3 Trigger Wait Signals 135
- 126 Basler racer GigE 136
- Basler racer GigE 127 137
- 128 Basler racer GigE 138
- Basler racer GigE 129 139
- 130 Basler racer GigE 140
- Basler racer GigE 131 141
- 132 Basler racer GigE 142
- Output Line 143
- 8.4 Frame Transmission Time 144
- 8.5 Maximum Allowed 145
- Line Acquisition Rate 145
- Basler racer GigE 137 147
- ExposureOverhead Parameter 148
- Removing the Parameter Limits 149
- 8.6 The Shaft Encoder Module 150
- Basler racer GigE 141 151
- 142 Basler racer GigE 152
- The Reverse Counter 153
- 144 Basler racer GigE 154
- 8.7 Frequency Converter 159
- 150 Basler racer GigE 160
- 9 Pixel Data Formats 161
- 9.2 Pixel Data Formats 162
- 9.2.2 Mono 12 Format 163
- 9.2.3 Mono 12 Packed Format 165
- 9.2.4 YUV 4:2:2 Packed Format 167
- 162 Basler racer GigE 172
- 10 Standard Features 173
- 10.1.1.1 Analog Gain 174
- 10.1.1.2 Digital Gain 174
- Setting the Digital Gain 175
- Gain Raw48.165–= 175
- 10.1.2 Black Level 176
- Basler racer GigE 167 177
- 10.2 Remove Parameter Limits 178
- 10.3 Image Area of Interest 179
- Setting Automatic X Centering 180
- 10.4 Event Reporting 181
- The Event Queue 182
- 10.5 Luminance Lookup Table 184
- 10.6 Binning 187
- 10.7 Gamma Correction 188
- 10.8 Shading Correction 189
- User Shading Set File 190
- Basler racer GigE 181 191
- 182 Basler racer GigE 192
- Basler racer GigE 183 193
- 10.9 Trigger Delay 194
- 10.10 Error Codes 195
- 186 Basler racer GigE 196
- 10.11Test Images 197
- 10.11.1Test Images in Detail 198
- Basler racer GigE 189 199
- 10.13 User Defined Values 202
- 10.14 Configuration Sets 203
- Default Startup Set 204
- Set into the Active Set 205
- 196 Basler racer GigE 206
- 11 Chunk Features 207
- Chunk Features AW00118302000 208
- 198 Basler racer GigE 208
- 11.3 Frame Counter 210
- Frame Counter Reset 211
- 202 Basler racer GigE 212
- 11.4 Time Stamp 213
- 204 Basler racer GigE 214
- Result.GetPayloadSize() ); 214
- 11.5 Trigger Counters 215
- Frame Trigger Counter = 0 216
- Frame Trigger Counter = 1 216
- Frame Trigger Counter = 2 216
- 11.6 Encoder Counter 218
- AW00118302000 Chunk Features 219
- Basler racer GigE 209 219
- 210 Basler racer GigE 220
- Basler racer GigE 211 221
- 11.8 CRC Checksum 222
- 214 Basler racer GigE 224
- 12.1 Camera Reset 225
- 12.2 Tech Support Resources 226
- 12.3 Obtaining an RMA Number 226
- Technical Support 226
- Revision History 229
- Basler racer GigE 221 231
- 222 Basler racer GigE 232
- AW00118302000 Index 233
- Basler racer GigE 223 233
- Index AW00118302000 234
- 224 Basler racer GigE 234
- Basler racer GigE 225 235
- 226 Basler racer GigE 236
- Basler racer GigE 227 237
- 228 Basler racer GigE 238
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