Advantech UNO-3072L, User Manual, Page: 7 / 64

vii Table of Contents
Contents
Chapter 1 Overview .......................................................... 2
1.1 Introduction ....................................................................... 2
1.2 Hardware Specifications ................................................... 5
1.3 Safety Precautions ............................................................. 7
1.4 Chassis Dimensions........................................................... 8
1.5 Packing List..................................................................... 10
Chapter 2 Hardware Functionality ............................... 12
2.1 Introduction ..................................................................... 12
2.2 RS-232 Interface (COM1~COM2) ................................. 13
2.3 RS-232/422/485 Interface (COM3~COM4) ................... 13
2.3.1 16C550 UARTs with 16-byte FIFO Standard ............. 13
2.3.2 RS-422/485 Detection .................................................. 13
2.3.3 Automatic Data Flow Control Function for RS-485 ... 13
2.3.4 RS-232/422/485 Selection ........................................... 14
2.3.5 RS-485 Auto Flow/RS-422 Master/Slave Selection .... 14
2.3.6 IRQ, I/O Address and Transmission Rate Setting ....... 15
2.3.7 Termination Resistor (JP6) .......................................... 17
2.4 LAN: Ethernet Connector ............................................... 17
2.5 Onboard Isolated Digital Input........................................ 17
2.5.1 Pin Assignments .......................................................... 17
2.5.2 Isolated Inputs .............................................................. 18
2.5.3 Interrupt Function of the DI Signals ............................ 19
2.5.4 IRQ Level .................................................................... 19
2.5.5 Interrupt Control Register ............................................ 20
2.5.6 Interrupt Enable Control Function ............................... 20
2.5.7 Interrupt Triggering Edge Control ............................... 21
2.5.8 Interrupt Flag Bit ......................................................... 21
2.6 Onboard Isolated Digital Output ..................................... 22
2.6.1 Pin Assignments .......................................................... 22
2.6.2 Power On Configuration .............................................. 22
2.6.3 Isolated Outputs ........................................................... 23
2.7 Onboard Isolated Counter/Timer .................................... 24
2.7.1 Counter/Timer Control Register .................................. 24
2.7.2 Counter 0 Function Block ............................................ 26
2.7.3 Counter 1 Function Block ............................................ 26
2.7.4 32-bit Counter Function Block (CTR32Set=1) .......... 27
2.7.5 Counter Clock Source .................................................. 27
2.7.6 Counter Internal Clock ................................................. 27
2.7.7 Counter Gate Source .................................................... 28
2.7.8 Counter Output Destination ......................................... 28
2.7.9 Counter Interrupt Flag ................................................. 28
2.7.10 Cascaded 32-bit Counter .............................................. 29