Summary of Contents for Van Walt DataSlave
- Page 1 Manual Version 1.0 10th June 2019 Author: Daniel Manning Van Walt Ltd | Prestwick Lane | Grayswood | Haslemere | Surrey | GU27 2DU | 01428 661 660. www.vanwalt.com...
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Page 2: Table Of Contents
3.2.2 Power cycle ................................. 14 32.3 Connect unit......................... 14 DataSlave configuration window ........................15 33.1 Side bar overview ............................ -
Page 3: Table Of Figures
Table of Figures Figure 1 DataSlave .................................... 4 Figure 2 Inside the DataSlave ..............................6 Figure 3 Fuse. switches and button ............................. 7 Figure 4 Modbus and SDl-1 2 interface ..........................g Figure 5 Internal serial label .............................. -
Page 4: Introduction
12V supply can be connected to power the sensors. A DataSlave needs configuration so that it knows how to retrieve data from sensors and what to do with the data. The configuration is done wirelessly using a USB configuration Based on a single sensor taking measurements every 15 minutes. - Page 5 GUI on a PC. Gateway products like the Van Walt OataHub and the Mandar Gateway are used to collect data which is uploaded to the internet. Wireless range depends on various environmental factors. The main effect on range will non-line of sight.
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Page 6: Hardware
2 Hardware Inside the unit all the user accessible parts are clearly labelled. All wired interfaces apart from the antenna connection, are Weidmuller Omnimate 5.08mm pitch connectors. This allows the screw terminals to be easily removed to attach wires. Figure 2 show's all connectors fitted. -
Page 7: User Hardware Interfaces
2.1 User hardware interfaces Figure 3 Fuse. switches and button 2.1.1 SW1 push button SW1 has two primary uses Wireless link check 2.1.1.1 When the unit is powered and a receiver is in range. a single press of the button will transmit a wireless message. -
Page 8: Sw3 Line Termination Switch
10 seconds to give warning. 21.63 Acknowledgement A simple single blink will occur if SW1 has been pressed and the DataSlave received an acknowledgement from a remote receiver such as a Van Walt Data Hub, a Mandar Gateway or a USB Configuration Tool. -
Page 9: J4 Sensor Interface
J4 is the main interface where Modbus and SDl-12 sensors are connected. Please ensure that SW2 is set to the correct position otherwise the DataSlave will not be able to communicate with the sensor 12V is a switched supply which originates from either the internal supplies. -
Page 10: Internal Serial Label
2.2 Internal serial Label An internal serial label is located at the bottom of the internal battery holder. The code uniquely identifies the product. C>+ l!l,.ij � ·• \, �.J- � ::::; £ lERM I 2.SA -· -� •-) ..•... -
Page 11: Configuration
3 Configuration A PC GUI is used to configure units. It is a portable standalone executable. A USB configuration tool is required to wirelessly communicate with a DataSlave. DataSlave File Sdhn9s Battaiy Signal Ext Supply State LastComms Device Connected Figure 6 GUI main window un-popu/a/ed 3.1 USB configuration tool... -
Page 12: Figure 10 Gui Main Window Populated
Connect the tool to the computer and select the COM port from the settings menu. rilll! Dat.1Slave Settings =s� --- --- - ___ La _ s _ t _ C _ o m _ m _ s ___ � e ,y p p l COM76 -76.0... -
Page 13: Start Communication
Several methods can be used to wake a 0ataSlave from low power sleep mode. A DataSlave will not communicate. other than sending data samples. unless a code unique to the unit has been provided by the user. These codes are pre-programmed and supplied with each device. -
Page 14: Power Cycle
A caveat of a power cycle is the date and time will be reset 3.2.3 Connect unit The primary method to start communication with a DataSlave is to use ·connect Unit.. . ' in the File menu. □... -
Page 15: Dataslave Configuration Window
3.3 DataSlave configuration window 3.3.1 Side bar overview On the right-hand side of the window is an overview of the connected DataSlave. Most fields are selectable for ease of copying and pasting. 'Node state' displays if the remote unit is 'Awake' or 'Asleep'. ihe GUI will keep the unit awake for you whilst this window is open. -
Page 16: Date And Time
3.3.2 Date and Time Inside the DataSlave is an accurate RTC. If the AA batteries lose too much charge. or if the batteries are removed. even briefly. the date and time will be lost. The current date and time of the PC, including current time zone is set in the DataSlave by clicking on the 'Set Current Date and Time' button. -
Page 17: Figure 17 Sensor Configuration
Unit Nome <,> Cu111:111 Mode $ompll) lnl(!M'.11 Suppty ldl& time (m6) Modb,1s 190 0 Unif 10 Send Oofo On Somple Ob�731313i313231002100lS Nude Stale -«kct:.llt ,� .. . � i'tU;r I" /,t),"l -HI dWf t1lll �di sw;;� �i'i ,v, Ml'1''1kJJ;1,,;WtHb � Awake o-.:ie..m *'. -
Page 18: Figure 18 Modbus Table
3335 Modbus table Modbus configuration is displayed in tree form. An example is shown in Figure 18. �.��: 9600 ..Sensor Address: Ox01 ..Function: READ _HOLDING_REGISTERS ..Register Address: 0.0002 _..Register Count: Data Type: FLOAT �- [Index 9600 ! .. -
Page 19: Figure21 Sdl-12 Add
3336 SDl-12 table SDl-12 configuration is displayed in tree form. An example is shown in Figure 9 . . [lndex l-· Sensor .Address: "O" '-· Command: "I" (Identify) 13 . . [lndex Sensor .Address: "O" l-· "M" Command: (Start Measurement) 13 . -
Page 20: Data Logger
3.3.4 Data logger Each DataSlave contains non-volatile memory. capable of storing several months' worth of data. The number of records depends how many data samples are taken on each sample cycle. Unit Name �t,a$1AV� Deno Rec:ordf A'Yolobto& Unit ID 16320 i J. - Page 21 If the data logger is active (not erased) the DataSlave will not allow you to change these settings.
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Page 22: Unit Name
3.3. 5 Unit name Unit name allows you to name the unit to help identify it. Up to a maximum length of 20 characters can be used. Valid input consists of ASCII symbols. numbers (0-9) and letters (a-z/ ox7E). A-Z) (ASCII 0X20 ASCII Unit Name D.1t.:.Sl:ivc 1... -
Page 23: Appendices
Real Time Clock. A device for keeping track of time. SDl-12 Digital serial interface for intelligent sensors Universal Serial Bus. A communications technology Appendix B: Document Revision History Van Walt Ltd | Prestwick Lane | Grayswood | Haslemere | Surrey | GU27 2DU | 01428 661 660. www.vanwalt.com...
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