User manual

915U-2 Wireless I/O Page 7
Page 7 User Manual
TABLE OF CONTENTS
CHAPTER 1 - INTRODUCTION .......................................................................................... 12
1.1 Overview ...................................................................................................................................................... 12
1.2 Module Structure ......................................................................................................................................... 14
1.3 Getting Started ............................................................................................................................................ 15
CHAPTER 2 - INSTALLATION ........................................................................................... 16
2.1 General ......................................................................................................................................................... 16
2.2 Power/Supply ............................................................................................................................................... 16
2.2.1 Requirements ......................................................................................................................................... 16
2.2.2 Expansion I/O Supply ............................................................................................................................ 18
2.2.3 Internal I/O ............................................................................................................................................. 18
2.2.4 Grounding .............................................................................................................................................. 19
2.3 Radio............................................................................................................................................................. 20
2.3.1 900 MHz Spread Spectrum radio .......................................................................................................... 20
2.3.2 Meshing capability ................................................................................................................................. 20
2.4 Antenna ........................................................................................................................................................ 21
Dipole and Collinear antennas. .................................................................................................................. 23
Yagi antennas. ............................................................................................................................................ 24
2.5 Connections ................................................................................................................................................. 25
2.5.1 Bottom panel connections ...................................................................................................................... 25
Ethernet port ............................................................................................................................................... 25
USB Device Port for configuration .............................................................................................................. 25
RS-232 port ................................................................................................................................................ 25
RS-485 port with Modbus Support. ............................................................................................................ 25
2.5.2 Side Access Configuration Panel .......................................................................................................... 26
“Factory Boot” switch .................................................................................................................................. 26
USB Host port ............................................................................................................................................. 27
Dipswitches ................................................................................................................................................. 27
Front panel connections ............................................................................................................................. 28
2.5.3 Digital Inputs .......................................................................................................................................... 29
2.5.4 Pulsed Inputs ......................................................................................................................................... 30
2.5.5 Digital Outputs (Pulsed Outputs) ........................................................................................................... 31
Digital Output Fail Safe Status ................................................................................................................... 31
2.5.6 Analog Inputs ......................................................................................................................................... 33
Differential Current Inputs (AIN 1 & 2 only) ................................................................................................ 33
Single Ended Current Inputs (AIN 3 & 4 only) ............................................................................................ 34
Single Ended Voltage Inputs ...................................................................................................................... 35
2.5.7 Analog Outputs ...................................................................................................................................... 36
CHAPTER 3 - OPERATION ................................................................................................ 37
3.1 Overview ...................................................................................................................................................... 37
3.2 Indications ................................................................................................................................................... 37
3.2.1 Front Panel Indications .......................................................................................................................... 37