ICP DAS USA PEX-D24 User Manual

Also see for PEX-D24: Quick start guide

PIO/PEX-D24/D56 Series User Manual (Ver.3.1, Mar. 2015, PMH-005-31) 142.5.1 D/I/O Port ArchitectureConnector DescriptionPIO-D24/D56 seriesPEX-D24/D56 CON3 Programmable Digital I/OThe programmable digital I/O control architecture for the PIO-D24/D56 seriesand PEX-D24/D56 is illustrated in Figure 2.2. The operation method of controlsignal is described below. When the RESET\ signal is in the Low-state, if means that all D/I/Ooperations are disabled. When RESET\ signal is in the High-state, if means all D/I/O operations areenabled. If the D/I/O is configured as a D/I port, the port can accept D/I from externalsignal sources If the D/I/O is configured as a D/O port, the D/O value can be read from theport. If D/I/O is configured as a D/I port, sending data to the Digital input port willonly change the D/O latch register. The latched data will be output when theport is configured as digital output and is activated right away.Figure 2.2