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Appendix B: GPIO Control
The following sections provide details on the LUT control block, the LUT programming
language and the advanced features of the PLC.
Note: the screenshots in this section are from the CamExpert GUI. Other GUI’s should
contain a similar arrangement to what is shown.
The PLC Control Block
All signals pass through the PLC Control Block. Depending on its programming, the PLC
Control Block generates output signals that can be redirected to various camera outputs.
The PLC control block uses a look up table (LUT) to generate the outputs. This LUT contains
eight different inputs, each of which can generate 18 different outputs, resulting in 256
entries of 18 bits.