
© China Daheng Group, Inc. Beijing Image Vision Technology Branch IV
7.3.1. MER2/ME2P Series...........................................................................................................92
7.3.1.1. Line0 (Opto-isolated Input) Circuit..............................................................................93
7.3.1.2. Line1 (Opto-isolated Output) Circuit........................................................................... 95
7.3.1.3. GPIO 2/3 (Bidirectional) Circuit ..................................................................................97
7.3.2. ME2L Series....................................................................................................................100
7.3.2.1. Line0 (Opto-isolated Input) Circuit............................................................................101
7.3.2.2. Line2 (Bidirectional) Circuit.......................................................................................103
8. Features........................................................................................................................108
8.1. I/O Control........................................................................................................... 108
8.1.1. MER2/ME2P Series.........................................................................................................108
8.1.1.1. Input Mode Operation...............................................................................................108
8.1.1.2. Output Mode Operation............................................................................................109
8.1.1.3. Read the LineStatus................................................................................................. 113
8.1.2. ME2L Series.................................................................................................................... 113
8.1.2.1. Input Mode Operation............................................................................................... 113
8.1.2.2. Output Mode Operation............................................................................................ 115
8.1.2.3. Read the LineStatus................................................................................................. 116
8.2. Image Acquisition Control.....................................................................................117
8.2.1. Acquisition Start and Stop ............................................................................................... 117
8.2.1.1. Acquisition Start........................................................................................................ 117
8.2.1.2. Acquisition Stop ........................................................................................................ 118
8.2.2. Acquisition Mode ............................................................................................................. 119
8.2.3. Trigger Type Selection.....................................................................................................120
8.2.4. Switching Trigger Mode...................................................................................................121
8.2.5. Continuous Mode and Configuration...............................................................................122
8.2.6. Software TriggerAcquisition and Configuration..............................................................122
8.2.7. Hardware TriggerAcquisition and Configuration.............................................................123
8.2.8. Set Exposure...................................................................................................................126
8.2.8.1. Set Exposure Mode..................................................................................................126
8.2.8.2. Set Exposure Value ..................................................................................................128
8.2.9. Overlapping Exposure and Non-overlapping Exposure..................................................132
8.3. Basic Features .................................................................................................... 134
8.3.1. Gain.................................................................................................................................134
8.3.2. Pixel Format.....................................................................................................................136
8.3.3. ROI...................................................................................................................................139
8.3.4. Auto Exposure/Auto Gain................................................................................................140
8.3.5. Auto White Balance.........................................................................................................142
8.3.6. Auto White Balance (ME2L-U3(-L)).................................................................................144
8.3.7. Light Source Preset.........................................................................................................145
8.3.7.1. Light Source Preset (ME2L-U3(-L))..........................................................................145
8.3.7.2. Light Source Preset (MER2 \ ME2P)........................................................................147
8.3.8. Test Pattern......................................................................................................................149
8.3.9. User Set Control..............................................................................................................150