Instruction Manual

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