Detcon RXT-320 - Manual (Page 3)

RXT-320 Wireless Modbus ™
RXT-320 Wireless IM iii
Table of Contents
1.0 Introduction ........................................................................................................................................ 1
1.1 Description ...................................................................................................................................... 1
1.2 RXT-320 Wireless Radio................................................................................................................. 2
1.3 Model 100 Terminal Board (Optional) ............................................................................................. 3
1.4 Smart Battery Pack (Optional) ......................................................................................................... 4
1.5 Quad Battery Charger (Optional) ..................................................................................................... 5
1.6 Solar Panel (Optional) ..................................................................................................................... 6
2.0 Installation .......................................................................................................................................... 6
2.1 Guidelines for Safe Use ................................................................................................................... 6
2.2 Mounting......................................................................................................................................... 7
2.2.1 Remote Mounting..................................................................................................................... 8
2.3 Wiring Connections / Functions..................................................................................................... 12
2.3.1 VDC Power & VDC Return.................................................................................................... 12
2.3.2 Modbus™ A & B.................................................................................................................... 13
2.3.3 Alarm 0-3............................................................................................................................... 13
2.3.4 4-20mA A & B........................................................................................................................ 14
2.3.5 Serial Clock & Serial Data Line............................................................................................. 15
2.3.6 Programming Data, Clock & Reset ........................................................................................ 15
2.4 Model 100 Terminal Board Settings............................................................................................... 15
3.0 Operation and Configuration ........................................................................................................... 16
3.1 Transparent Mode.......................................................................................................................... 16
3.2 Master Configuration with Controller ............................................................................................ 17
3.3 Slave Configuration with Sensor.................................................................................................... 17
3.4 Slave Configuration with Alarm Station......................................................................................... 17
3.5 Sleep Mode ................................................................................................................................... 18
4.0 Modbus Communications................................................................................................................. 18
4.1 General Modbus™ Description...................................................................................................... 19
4.1.1 Modbus™ Exceptions ............................................................................................................ 19
4.1.2 Modbus™ Broadcast Requests............................................................................................... 20
4.2 Modbus™ Register Map & Description ......................................................................................... 20
4.2.1 Register – Detcon Type .......................................................................................................... 21
4.2.2 Register – Alarm Outputs ....................................................................................................... 21
4.2.3 Register – 4-20mA Reading.................................................................................................... 22
4.2.4 Register – Battery Info ........................................................................................................... 22
4.2.5 Register – uC Version ............................................................................................................ 22
4.2.6 Register – Sleep Time............................................................................................................. 22
4.2.7 Register – Control.................................................................................................................. 23
4.2.8 Register – Status .................................................................................................................... 23
4.2.9 Register – Address Switch ...................................................................................................... 23
4.2.10 Register – Timestamp............................................................................................................. 24
5.0 Troubleshooting Guide ..................................................................................................................... 24
6.0 Warranty........................................................................................................................................... 24
7.0 Specifications .................................................................................................................................... 25
7.1 Spare Parts .................................................................................................................................... 26
7.2 Revision Log ................................................................................................................................. 27