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Summary of Contents for Elpro Technologies 915U-2
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Page 1: User Manual
915U-2 Wireless I/O User Manual ELPRO Technologies, 9/12 Billabong Street, Stafford Qld, 4053 Australia. Tel: +61 7 33528600 Fax: +61 7 33528677 Email: sales@elprotech.com Web: www.elprotech.com ELPRO Support Help-line America (866) 7134409 Rest of the world +617 3352 8624 V1.0.34... -
Page 2: Safety Notice
915U-2 Wireless I/O Page 1 Thank you for your selection of the 915U-2 I/O Module. We trust it will give you many years of valuable service. ATTENTION! Incorrect termination of supply wires may cause internal damage and will void warranty. To ensure your 915U-2 module enjoys a long life, double check ALL your connections with the user manual before turning the power on. - Page 3 GNU Free Documentation Licence: Copyright (C) 2009 ELPRO Technologies. ELPRO Technologies is using a part of Free Software code under the GNU General Public License in operating the “915U-2” product. This General Public License applies to most of the Free Software Foundation’s code and to any other program whose authors commit by using it.
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Page 4: Fcc Notice
915U-2 Wireless I/O Page 3 FCC Notice: This 915U-2 module uses the “E2_900M Wireless Data Modem” radio and complies with Part 15.247 of the FCC Rules. Operation is subject to the following two conditions: This device may not cause harmful interference and must accept any interference received, including interference that may cause undesired operation. -
Page 5: Important Notice
E.g. "This equipment is remotely controlled and may start without warning. Isolate at the switchboard before attempting adjustments." The 915U-2 module is not suitable for use in explosive environments without additional protection. The 915U-2 operates unlicensed Radio frequencies and proprietary protocols to communicate over the radio. - Page 6 915U-2 Wireless I/O Page 5 Limited Lifetime Warranty, Disclaimer, and Limitation of Remedies ELPRO products are warranted to be free from manufacturing defects for the “serviceable lifetime” of the product. The “serviceable lifetime” is limited to the availability of electronic components.
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Page 7: Table Of Contents
915U-2 Wireless I/O Page 6 TABLE OF CONTENTS INTRODUCTION ......................... 11 1.1 Overview ..............................11 1.2 Module Structure............................13 1.3 Getting Started ............................14 CHAPTER 2 - INSTALLATION ................... 15 2.1 General ................................. 15 2.2 Power/Supply............................... 15 2.2.1 Requirements............................15 2.2.2 Expansion I/O Supply .......................... -
Page 8: Wireless I/O
4.2 First time Configuration ..........................44 4.2.1 Default IP Address ..........................44 4.2.2 Accessing Configuration ........................44 4.2.3 Power up the 915U-2 module........................ 45 4.2.4 Over the Air Web Based Configuration ....................47 4.3 Module Information Web Page........................48 4.4 System Tools Web page .......................... - Page 9 915U-2 Wireless I/O Page 8 LQI (Link Quality Indication) ........................56 5.3 Network Diagnostics........................... 57 Ping................................57 Trace Route ..............................58 5.4 Network Statistics ............................59 5.5 Monitor Radio Comms ..........................61 5.6 Statistics ..............................63 CHAPTER 6 - SPECIFICATIONS ..................64 6.1 Specifications ..............................
- Page 10 915U-2 Wireless I/O Page 9 915U-2 Module I/O Registers ......................... 90 115S Serial Expansion Modules I/O Registers....................91 Fail Safe Configuration ............................. 93 “Invalid” register state ............................. 93 Fail Safe Blocks .............................. 94 Serial Configuration ............................95 Modbus TCP to RTU Gateway ........................95 Expansion I/O ..............................
- Page 11 Page 10 915U-2 Wireless I/O TABLE OF FIGURES Figure 1 – Module Structure ........13 Figure 36 – Trace Route.........58 Figure 2 – Power Connectors ........ 15 Figure 37 – Network Statistics Period ....59 Figure 3 – Supply Connections......15 Figure 38 –...
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Page 12: Introduction
Telemetry is the transmission of data or signals over a long distance via radio or twisted-pair wire cable. Although the 915U-2 Series is intended to be simple in its application, it provides many sophisticated features, which will be explained in the following chapters. - Page 13 Each 915U-2 radio can have up to 24 expansion I/O modules (ELPRO 115S) connected by RS485 twisted pair provided there is sufficient power to power all modules with I/O.
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Page 14: Module Structure
Ethernet Port Figure 1 – Module Structure The 915U-2 is made up of a number of basic sections, which all interface with a central Input and output storage area (I/O Store). The I/O Data Store provides storage for I/O data as well as providing services to other processes in the system. -
Page 15: Getting Started
Communication diagnostics functions Lastly, the Expansion port, which enables 115S expansion I/O modules to be added to the module. Expansion module I/O is dynamically added to the I/O of the 915U-2 by adding an offset to the address. 1.3 Getting Started Most applications for the 915U-2 require little configuration. -
Page 16: Chapter 2 - Installation
Figure 3 – Supply Connections 2.2.1 Requirements The 915U-2 power supply is a switch-mode supply and will accept a 15 - 30 volt DC power source connected to the “Sup + & Sup -” terminals. Both Supply and Battery connections have reverse polarity and over voltage protection. - Page 17 Page 16 915U-2 Wireless I/O If a backup battery is used then the module Supply can have a lower current rating as the Peak current will be supplied by the battery. To calculate the Power Supply current limit, use the following criteria.
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Page 18: Expansion I/O Supply
115S- XX Figure 4 – Expansion I/O power & RS485 As a guide when using the I/O power connection from the 915U-2, the number of I/O modules is limited to three 115S-11 (using inputs), one 115S-12, or one 115S-13. If more I/O Modules are required, you will need to calculate the overall current consumption using the following criteria and power the modules from an external supply. -
Page 19: Grounding
“earth” and the antenna mast “earth”. The 915U-2 has a dedicated Earth connection screw on the bottom end plate next to the Supply terminals. All EARTH wiring should be minimum 2mm² - 14 AWG... -
Page 20: Radio
915U-2 Wireless I/O Page 19 2.3 Radio The following radio variants are available in the 915U-2 dependent on the country of operation. 2.3.1 900 MHz Spread Spectrum radio The radio operates in the 902-928 MHz ISM band and uses frequency hopping spread... -
Page 21: Antenna
915U-2 Wireless I/O 2.4 Antenna The 915U-2 module will operate reliably over large distances. The distance that can be reliably achieved will vary with each application and depend on the type and location of antennas, the degree of radio interference, and obstructions (such as hills or trees) to the radio path. -
Page 22: Figure 6 -Wrapping Coax Connections
915U-2 Wireless I/O Page 21 The net gain of the antenna/cable configuration is determined by adding the antenna gain and the cable loss. For example, a 6 element Yagi with 70 feet (20 metres) of Cellfoil has a net gain of 4dB (10dB – 6dB). -
Page 23: Dipole And Collinear Antennas
Page 22 915U-2 Wireless I/O We recommend that the connection be taped, firstly with a layer of PVC Tape, then with a vulcanising tape such as “3M 23 tape”, and finally with another layer of PVC UV Stabilised insulating tape. The first layer of tape allows the joint to be easily inspected when trouble shooting as the vulcanising seal can be easily removed. -
Page 24: Yagi Antennas
915U-2 Wireless I/O Page 23 Yagi antennas. A Yagi antenna provides high gain in the forward direction, but lower gain in other directions. This may be used to compensate for coaxial cable loss for installations with marginal radio path. The Yagi gain also acts on the receiver, so adding Yagi antennas at both ends of a link provides a double improvement. -
Page 25: Connections
Figure 9 – Bottom Panel Connections Ethernet port The 915U-2 modules provides a standard RJ-45 Ethernet port compliant to IEEE 802.3 10/100 BaseT. This port provides full access to the module, including configuration, diagnostics, log file download and firmware upload, of both the local and remote units. -
Page 26: Port With Modbus Support
Page 25 RS-485 port with Modbus Support. The 915U-2 module provides an RS-485 serial port, which supports operations at data rates up to 230,400 baud. Default baud rate is 9600 baud, No Parity, 8 data bits and 1 stop bit which match the 115S serial expansion modules defaults. This port Supports MODBUS protocol. -
Page 27: Usb Host Port
Page 26 915U-2 Wireless I/O USB Host port This port is a USB Host (Master port), which can interface with USB storage devices for data logging (Future) and for upgrading the module Firmware – See section 4.4 “System Tools” for details on how this is done. -
Page 28: Front Panel Connections
Page 27 Front panel connections Figure 12 – Front Panel Connections The 915U-2 front panel provides connections for the following Eight Digital Input /Output (DIO1-8). Two 12 bit, 0.1% accuracy differential analog inputs. Two single ended 12 bit, 0.1% accuracy analog inputs. -
Page 29: Digital Inputs
Page 28 915U-2 Wireless I/O 2.5.3 Digital Inputs Each digital I/O channel on the 915U-2 can act as either an input or an output. The input/output direction is automatically determined by the connections and configuration of the I/O. If you have an I/O channel wired as an input but operate the channel as an output. No electrical damage will occur however, the I/O system will not operate correctly. -
Page 30: Pulsed Inputs
Page 29 2.5.4 Pulsed Inputs The 915U-2 supports 8 x digital signals, of which inputs 1-4 can be used as pulsed inputs. The maximum pulse frequency is 50 KHz for Input 1 & 2 and 1 KHz for Input 3 & 4. -
Page 31: Digital Outputs (Pulsed Outputs)
The digital channels DIO1-4 on the 915U-2 module can be used as pulse outputs with a maximum output frequency of 1 KHz. Digital Output Fail Safe Status As well as indicating the Digital Output status (on / off), the LEDs can also indicate a communications failure by flashing the Output LED. -
Page 32: Figure 16 - Digital Output Failsafe Times
915U-2 Wireless I/O Page 31 Figure 16 – Digital Output Failsafe Times The Fail Safe Time is the time the output counts down before activating a Fail Safe state. Normally this would be configured for a little more than twice the update time of the mapping that is sending data to it. -
Page 33: Analog Inputs
Page 32 915U-2 Wireless I/O 2.5.6 Analog Inputs The 915U-2 can provide two floating differential analog inputs and two grounded single- ended analog inputs. Analog Input 1 & 2 can automatically measure Current (0-20 mA) or Voltage (0-25V) depending on what is connected to the input. -
Page 34: Single Ended Current Inputs (Ain 3 & 4 Only)
Page 33 Single Ended Current Inputs (AIN 3 & 4 only) Single-ended current input mode is useful if the sensor loop is grounded to the 915U-2 module. Devices can be powered from the 24V Analog Loop Supply (ALS) generated internally from the module. -
Page 35: Single Ended Voltage Inputs
Page 34 915U-2 Wireless I/O Single Ended Voltage Inputs All analog inputs can be setup to read voltage. If using Analog input 1 & 2 connect the voltage source across the positive terminal of the input and Common. If using Analog input 3 & 4 then connect across the input terminal and Common. -
Page 36: Analog Outputs
Page 35 2.5.7 Analog Outputs The 915U-2 module provides two 0 - 24 mA DC analog outputs for connecting to instrument indicators for the display of remote analog measurements. The 915U-2 Analog outputs are a sourcing output and should be connected from the analog output terminal through the device or indicator to Common. -
Page 37: Chapter 3 - Operation
Chapter 3 - Operation Overview The 915U-2 range of I/O modules has been designed to provide standard “off-the-shelf” telemetry functions, at an economic price. Telemetry is the transmission of data or signals over a long distance via radio or twisted-pair wire cable. -
Page 38: Input / Output Indications
915U-2 Wireless I/O Page 37 3.2.3 Input / Output Indications Condition Meaning Indicator D 1- 8 ORANGE Digital input ON FLASHING ORANGE D 1- 8 Update Failure - Failsafe state On - Mostly On FLASHING ORANGE D 1- 8 Update Failure - Failsafe state Off - Mostly Off AI 1 &... -
Page 39: Ethernet Indications
Page 38 915U-2 Wireless I/O 3.2.4 Ethernet Indications On the end plate, the ethernet socket incorporates two LED’s These LEDs indicating the Ethernet status 100M – GREEN LED indicates presence of a 100 Mbit /s Ethernet connection, with a 10 Mbit /s connection the LED will be off. -
Page 40: System Design
The 915U-2 radio band is split into two sub-bands, 902-914 MHz (Low) and 915–928 MHz (High). In America and Canada, the 915U-2 uses both sub-bands - but in other countries, e.g. Australia only the high band is available. In America and Canada, it is possible to restrict the frequency hopping of the 905U to only the high or low band. -
Page 41: Design For Failures
(for example, a tower, or mast). Repeater modules can have their own I/O and act as a “normal” 915U-2 module in the system. -
Page 42: Indicating A Communications Problem
915U-2 Wireless I/O Page 41 A module can provide an output, which activates on communication failure to another module. This can be used to provide an external alarm that there is a system fault. 3.3.4 Indicating a Communications Problem There are two ways to indication communications problems. -
Page 43: Wibmesh
Page 42 915U-2 Wireless I/O When the system is configured and you are happy that it all works, backup the configurations of all the modules. After installation, record the radio signal strength and background noise level for each radio link. If there are future communications problems, you can compare the present measurements to the as-commissioned values. -
Page 44: Chapter 4 - Configuration
For instructions on web page based configurations see Appendix E: “Web Page Configuration” The Utility is available from the download section on the ELPRO Technologies web site - www.elprotech.com. After downloading, run the file to install the software on to your computer. -
Page 45: First Time Configuration
Internet Explorer 8. 4.2.1 Default IP Address The default factory IP Address of the 915U-2 is 192.168.0.1XX, where XX is the last two digits of the serial number (the default “Setup IP address” is shown on the printed label on the side of the module) Netmask 255.255.255.0... -
Page 46: Power Up The 915U-2 Module
915U-2 Wireless I/O Page 45 4.2.3 Power up the 915U-2 module. Open “Network Settings” on your PC under Control Panel. The following description is for Windows XP - earlier Windows operating systems have similar settings. Open “Properties” of Local Area Connection. -
Page 47: Figure 27 - Main Welcome Screen
This option may be modified by opening Tools -> Internet Options -> Connections Tab - > LAN Settings->Proxy Server -> bypass proxy for local addresses. Enter the default IP address for the 915U-2 https://192.168.0.1XX where XX is the last two digits of the serial number. -
Page 48: Over The Air Web Based Configuration
4.2.4 Over the Air Web Based Configuration The 915U-2 modules communicate using Standard Ethernet Protocols which makes it possible to connect to other 915U-2 module within the radio network for over the air diagnostics or configuration changes. A little forethought when designing the system is required as some minor configuration settings are needed to implement the over air configuration. -
Page 49: Module Information Web Page
= “user” to access the module in future. A text field if you wish to label the 915U-2. Also name is used Device Name as a DNS Host name with a DHCP Client Owner A text field for owner name. -
Page 50: System Tools Web Page
915U-2 Wireless I/O Page 49 4.4 System Tools Web page Figure 30 – System Tools System Log File Logs system instructions, etc to the screen where the log screen can be saved to a file. Not normally used, however maybe used by Technical Support to diagnose problems. -
Page 51: Figure 31 - Firmware Upgrade Led Indications
Page 50 915U-2 Wireless I/O Instructions for upgrading Firmware are as follows. 1. You will need valid ELPRO 915U-2 Firmware upgrade files. Contact ELPRO Technologies for the latest version. Files must not be renamed, compressed, or zipped. 2. You will also need a dedicated USB Flash drive which needs to be formatted and completely free of any other file. -
Page 52: Feature Licence Keys Web Page
Allows the module to be upgraded with enhanced features or upgraded to a more advanced model .i.e. enabling the Modbus option. The Feature Licence unlock codes are purchasable by contacting ELPRO Technologies or your local distributor. The module serial number is needed to generate the Feature Licence Key which can be found on the default startup web page of the module, for details on what this looks like see Figure 27 –... -
Page 53: Standard 915U-2 I/O (Basic I/O)
The addressing utilises standard Modbus protocol formatting as well as being common for ELPRO protocol. The following table shows the basic onboard I/O available in a standard 915U-2 module with no expansion I/O connected. For a more detailed I/O map (showing the full register range), see Appendix B: “I/O Store Registers”... -
Page 54: Expansion I/O Memory Map
Page 53 increase poll speeds in larger systems however the serial modules will need to match that of the 915U-2 RS485 port. Also if more than 3 serial expansion modules are added the “Maximum Connections” for the RS485 port on the “Serial” page will need to be adjusted. -
Page 55: Chapter 5 - Diagnostics
Page 54 915U-2 Wireless I/O Chapter 5 - Diagnostics 5.1 IO Diagnostics Figure 33- I/O Diagnostics Selecting this option from the main screen will allow some basic reading and writing of the I/O store registers within the module. To read a register location, enter an address location, e.g. 10001 (for digital Inputs), enter a count (number of consecutive registers) and then press the “Read”... -
Page 56: Modbus Error Registers
915U-2 Wireless I/O Page 55 5.1.1 Modbus Error Registers Each of the Expansion I/O modules have diagnostics registers that can indicate any Modbus Errors, Codes, Counts, etc. 30017 + Offset = Modbus Error Counter (number of errors the modules has had) -
Page 57: Lqi (Link Quality Indication)
Page 56 915U-2 Wireless I/O which indicates no direct link to that station. The LQI is a logarithmic representation of the number of bit errors in the frame that were corrected by the Forward Error Correction algorithm. Each data bit is encoded with 7 forward error correction bits, so a 100 byte frame contains 100 * 8 bits / byte * 7 FEC bits/bit = 5600 bits. -
Page 58: Network Diagnostics
915U-2 Wireless I/O Page 57 5.3 Network Diagnostics Figure 35 – Network Diagnostics Network Diagnostics allows you to check the communications path to other modules within the system. There are two options for checking the communications. Ping Ping is a standard Network instruction that sends out a small data probe to the IP address configured letting you know if you have a communication path or not. -
Page 59: Trace Route
Page 58 915U-2 Wireless I/O Trace Route Because the modules use the AODV protocol which is a routing protocol capable of finding its own path through the network it can be difficult to determine the selected communications path. “Trace Route” allows you to trace the communications path through the network. -
Page 60: Network Statistics
915U-2 Wireless I/O Page 59 5.4 Network Statistics Figure 37 – Network Statistics Period After enabling the “Gather Statistics” on the Main Network page, this page will display the average Receive and Transmit traffic throughput over a configured time period. -
Page 61: Figure 39 - Hourly Statistics
Page 60 915U-2 Wireless I/O Hourly, this will display a graph showing overall transmit (t) and Receive (r) data on an hourly scale in accordance with the module Date and time stamp. (“rt” indicate both Transmit and Receive) Below the graph is a table showing the average data throughput (in packets) for transmit and receive and for each hour. -
Page 62: Monitor Radio Comms
915U-2 Wireless I/O Page 61 5.5 Monitor Radio Comms The Monitor Comms page shows radio communication frames that are received or transmitted by the radio. Figure 41 - Monitor Comms The Table below shows some data frames from the communication log screen above. - Page 63 Page 62 915U-2 Wireless I/O Time Time stamp indicating the time from when the module was turned on. TX/RX Indicates whether the message is received or transmitted Frequency Shows the Frequency of the RX/TX frame Signal Shows the Receive Signal Level on any received message or internal Level sequence number for the transmitted message.
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Page 64: Statistics
915U-2 Wireless I/O Page 63 5.6 Statistics The Statistics webpage is used for advanced debugging of 915U-2. This webpage details the state of the 915U-2 and performance information. The page is useful to ELPRO technical support personnel in diagnosing problems with the module. -
Page 65: Chapter 6 - Specifications
Page 64 915U-2 Wireless I/O Chapter 6 - Specifications 6.1 Specifications General EMC specification FCC Part 15 FCC Part 90 EN 300 683 89/336/EEC AS 3548 FCC Part 15.427 Radio specification AS 4268.2 RFS29 NZ 160KF1D Emission designator Hazardous Spec... - Page 66 915U-2 Wireless I/O Page 65 Receiver -109dBm FER = 12% RX Sensitivity Serial Ports RS232 Port RJ45 to EIA-562 specification RS485 Port 2 pin terminal block 110 – 230400 baud Data rates Odd, Even, None. Parity 1,2, Stop Bits Digital Inputs/Outputs <2.1VDC...
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Page 67: Appendix A: Dbm To Mw Conversion Table
Page 66 915U-2 Wireless I/O Appendix A: dBm to mW conversion table dBm to mW Conversion Watts Watts 10 mW 10 dB 200 mW 23 dB 13 mW 11 dB 316 mW 25 dB 16 mW 12 dB 398 mW... -
Page 68: Appendix B: I/O Store Registers
915U-2 Wireless I/O Page 67 Appendix B: I/O Store Registers “Output Coils” 0001 Local DIO1 – DIO8 (as Outputs) at address 1-8. 0008 0009 Spare 0020 0021 Locally attached 115S modules DIO Outputs 0040 (See 115S detail below) 0041 (space for up to 24 115S modules – 20 registers for each module) 0500 General Purpose Bit Storage –... -
Page 69: Input Registers
Page 68 915U-2 Wireless I/O “Input Registers” 30001 Local AI1 – AI4. (Current Mode) ( AI1, AI2 4-20mA differential, AI3, AI4 4-20mA Sink) 30004 30005 Local Supply voltage (8-40V scaling) 30006 Local Battery voltage Local 24V loop voltage 30007 115S Supply Voltage... -
Page 70: Holding Registers
915U-2 Wireless I/O Page 69 38033 - 38040 Spare space for floating point values 32501 Not Available 40000 “Holding Registers” 40001 Local AO1 – AO2 40002 40003 Spare 40020 40021 Locally attached 115S modules (See 115S detail below) 40040 40041... -
Page 71: Appendix C: Expansion I/O Store Registers
Page 70 915U-2 Wireless I/O Appendix C: Expansion I/O Store Registers To calculate the I/O Store register you need to find the address of the I/O point from the module tables below and then add the offset. The Offset is the Modbus address multiplied by 20. -
Page 72: I/O Store For A 115S-11 Expansion I/O Module
915U-2 Wireless I/O Page 71 I/O store for a 115S-11 Expansion I/O module 0001 + Offset DIO Outputs 1 - 16 0016 + Offset 0017 + Offset Spare 0020 + Offset 10001 + Offset DIO Inputs 1 - 16 10016 + Offset... -
Page 73: I/O Store For A 115S-12 Expansion I/O Module
Page 72 915U-2 Wireless I/O I/O store for a 115S-12 Expansion I/O module 0001 + Offset DIO Outputs 1 - 8 0008 + Offset 0009 + Offset Spare 0020 + Offset DIO Inputs 1 - 8 10001 + Offset 10008 + Offset... -
Page 74: I/O Store For A 115S-13 Expansion I/O Module
915U-2 Wireless I/O Page 73 I/O store for a 115S-13 Expansion I/O module 0001 + Offset DIO Outputs 1 - 8 0008 + Offset 0009 + Offset Spare 0020 + Offset DIO Inputs 1 - 8 10001 + Offset 10008 + Offset... -
Page 75: Appendix D: Modbus Error Codes
Page 74 915U-2 Wireless I/O Appendix D: Modbus Error Codes Code Name Meaning The function code received in the query is not an allowable action for the server (or slave). This may be because the Illegal function code is only applicable to newer devices, and was not Function implemented in the unit selected. -
Page 76: Appendix E: Web Page Configuration
Note: If configuring a system of 915U-2 radios and the Ethernet IP address of each of the 915U-2 modules is configured with the same Address and if using a common PC to do the configuring there can be some issues with web pages not reading correctly. - Page 77 DHCP server configured on your network. The module will attempt to register its configured unit name with any connected DNS server. The IP address of the 915U-2 on its wired (Ethernet Interface) port IP Address and wireless (Wireless Interface) port. This should be set to the IP address you require.
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Page 78: Mesh
915U-2 Wireless I/O Page 77 Mesh Figure 44 - Mesh Configuration Enabling this option will advertise all other communicating modules that an Ethernet Network is connected (IP address range configured under Network Settings) and that all traffic for Enable IP Gateway this network can be routed through this IP address. - Page 79 Page 78 915U-2 Wireless I/O (Hops) when replying to mesh routing requests. This parameter should be set to zero for units that should always act as repeater units, and higher for units that are less preferred as repeaters. Setting this parameter to 10 means the unit will never be used as a repeater.
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Page 80: Ip Routing
Page 79 IP Routing When a 915U-2 receives an IP frame that is destined for an IP address on a different network, it checks to see if the network address matches one of its own interfaces (i.e. hard-wired Ethernet, or Radio) and forwards the frame appropriately. However, if the IP network address does not match the network address of any of its interfaces, the 915U- 2 will forward the frame to its default gateway. -
Page 81: Radio Settings
Check box to disable the LNA (Low Noise Amplifier) Disable Rx LNA Reduces the Receive Sensitivity by about 12dB, used during Demos, Bench testing, etc. Save settings to non-volatile memory, and reboot 915U-2. Save Changes and Once the module has completed the reboot sequence, all Reset. -
Page 82: Mesh Fixed Routes
915U-2 Wireless I/O Page 81 Mesh Fixed Routes In large radio systems there will often be a number of radios that will act as Repeaters for the other radios. Because these sites are generally stationary they do not need to learn the different paths and can have fixed routes back to the destination. -
Page 83: Example #2
Page 82 915U-2 Wireless I/O Figure 48 above show the Mesh Fixed Routing Rules for the network diagram in Figure 47 above. In fixed Route #1 it shows the Destination IP Address will be 10.0.0.1 and its Next hop will be 10.0.0.2, there will be a total of 2 hops and the ”IP Gateway” and “External” are un ticked as the destination will be the local I/O on 10.0.0.1. -
Page 84: Wibmesh Configuration
915U-2 Wireless I/O Page 83 IP Routing Name A name that describes the routing rule (Max 32 characters). The destination network or Host IP address. You can specify a whole network by entering the IP range 192.168.0.0 with a Destination Netmask of 255.255.255.0 or specify an individual host IP... - Page 85 The number of times it transmits the same data message. It is used if the 915U-2 has been setup as a transmit only module (similar to the older ELPRO 905U-K or 505U-K modules). It is done by not TX count for selecting the “Ack”...
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Page 86: Wibmesh Mappings
Add or delete mapping by using the buttons then select “Save and Activate Changes”. Block Write Mapping This is the IP address that you wish to write the I/O to. If mapping 915U-2 I/O to another 915U-2 I/O via radio, the Destination IP destination IP address must be the radio IP address. If mapping via ethernet port (or WAN) then the destination IP Address will be the Ethernet IP of the destination. - Page 87 Page 86 915U-2 Wireless I/O can be inverted. This is the period that the mappings are sent as an update or Update Period (sec) check signal. (Zero disabled updates) Configures an offset time for the update mapping. Used to stagger the update transmissions so on start-up and every...
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Page 88: Read Mappings (Read Remote I/O And Storing It Locally)
This is the IP address that you wish to read the I/O from. If Destination IP reading I/O via radio from another 915U-2 the destination IP address must be the radio IP address. This will allow the mapping to be inverted. E.g. if the digital... -
Page 89: Gather/Scatter Write Mappings
Figure 55 – Gather/Scatter Mappings Gather/Scatter Write Mapping This is the IP address that you wish to write the I/O to. If mapping 915U-2 I/O to another 915U-2 I/O via radio, the destination IP address must be the Destination IP radio IP address. -
Page 90: Sensitivity Block
915U-2 Wireless I/O Page 89 Sensitivity Block Figure 56 – Sensitivity Block All registers have a configurable “Sensitivity” value, which determines how much the register needs to change by before being sent as a “Change of State” (COS). All registers have a default sensitivity value of 1 except the following. -
Page 91: Module I/O Registers
Page 90 915U-2 Wireless I/O 915U-2 Module I/O Registers Description Input Output Digital I/O 1 Digital Input/Output 1 10001 Digital I/O 2 Digital Input/Output 2 10002 Digital I/O 3 Digital Input/Output 3 10003 Digital I/O 4 Digital Input/Output 4 10004... -
Page 92: Serial Expansion Modules I/O Registers
915U-2 Wireless I/O Page 91 Pulsed Input 2 Count Pulsed Input Count 2 36003-36004 Pulsed Input 3 Count Pulsed Input Count 3 36005-36006 Pulsed Input 4 Count Pulsed Input Count 4 36007-36008 Pulsed Input 1 Rate Pulsed Input Rate 1... - Page 93 Page 92 915U-2 Wireless I/O Digital I/O 7 10007 10007 10007 Digital I/O 8 10008 10008 10008 Digital I/O 9 10009 Digital I/O 10 10010 Digital I/O 11 10011 Digital I/O 12 10012 Digital I/O 13 10013 Digital I/O 14...
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Page 94: Fail Safe Configuration
915U-2 Wireless I/O Page 93 Fail Safe Configuration Fail Safe Block configuration allows registers to be set to a pre configured value on startup as well as configuring the outputs to reset to a predefined value after a timeout period has elapsed, when the real value comes in it will update as normal. Also if the value is lost because of a communication problem it can be configured to set the output to a failsafe value after the pre-configured time. -
Page 95: Fail Safe Blocks
Page 94 915U-2 Wireless I/O Fail Safe Blocks Figure 58 – Fail Safe Blocks In the screen shot above, register 30501 is an analog value that has been mapped from another module, it has an update interval of 1 minute. -
Page 96: Serial Configuration
Modbus TCP to RTU Gateway enabled). The example below demonstrates how a Modbus/TCP Client (Master) can connect to one or more Modbus RTU (i.e. serial) Slaves. In this example the remote 915U-2 is configured with the “RS232 Modbus/TCP to RTU Gateway” enabled Figure 59–... -
Page 97: Figure 60 - Modbus Tcp To Rtu
Modbus/TCP response and forwarded via the network to the Modbus/TCP Master. If no response was received serially by the 915U-2 within the configured Response Timeout, the 915U-2 will initiate a number of retries specified by the configured Maximum Request Retries. -
Page 98: Expansion I/O
This means that when expanding the I/O all that is needed is to add the ELPRO Expansion I/O module/s, e.g. 115S-11, 115S-12, or 115S-13 to the RS485 port and the I/O will automatically be available from within the 915U-2’s I/O store. See Appendix B: “I/O Store Registers” for location addresses. -
Page 99: I/O Configuration
Page 98 915U-2 Wireless I/O RS232 / RS485 Serial Port Configuration Select the desired functionality. Select either Modbus TCP / RS232 / RS485 Port RTU or Expansion I/O The serial data rate desired. Serial data rates available range Data Rate from 110bps to a maximum of 230,400bps. -
Page 100: Analog Inputs
Page 99 Analog Inputs Figure 62 – Analog Input Configuration The 915U-2 Analog inputs have the following configuration parameters. Name – The inputs can be named to help with configuration or use the default, up to 30 characters including spaces. -
Page 101: Calculating Span
Page 100 915U-2 Wireless I/O Invert –This option toggles the Setpoint control logic between the default normal and inverted state. This function does not change the operation, only invert the operation, e.g. if setpoint is on, inverting will mean the setpoint will be off. -
Page 102: Analog Outputs
915U-2 Wireless I/O Page 101 Analog Outputs Figure 63 – Analog Output Configuration Name – The inputs can be named to help with configuration or use the default, up to 30 characters including spaces. Zero / Span – These variables will change the Scale of the Analog Outputs. -
Page 103: Digital Input
Page 102 915U-2 Wireless I/O Digital Input Figure 64 – Digital Input Configuration Name – The inputs can be named to help with configuration or use the default, up to 30 characters including spaces. Debounce Time (sec) – Debounce is the time which an input must stay stable before the module decides that a change of state has occurred. -
Page 104: Pulsed Outputs
Modbus TCP Transfer The 915U-2 provides Modbus TCP Client and Modbus TCP Server functionality for I/O transfer. There are pre-defined areas representing Inputs and Outputs as well as the different I/O types, e.g. -
Page 105: Figure 67 - Modbus Server
(described below). The Modbus TCP Client may also poll Modbus TCP (Ethernet) and Modbus RTU (serial) devices connected to either the local module or a remote 915U-2 module. This is done by enabling the Modbus TCP to RTU gateway at the corresponding serial port (see section 0“Serial Configuration”). -
Page 106: Figure 69 - Modbus Tcp Client Mappings
915U-2 Wireless I/O Page 105 Modbus TCP Client functionality allows connections to a maximum of 24 different Modbus TCP Servers and up to 100 mappings can be configured. The screen shot shows below some example Client Mappings. Figure 69 - Modbus TCP Client Mappings The first mapping shows the Modbus Client (Master) is configured to read analog values from a device connected on the LAN. -
Page 107: Modbus Tcp Configuration
Page 106 915U-2 Wireless I/O is ever changed the Server IP address will not need to be changed as it will automatically use the localhost address. Modbus TCP Configuration Check this box to enable the onboard Modbus TCP Server. Enable Modbus TCP... -
Page 108: Modbus Tcp Mappings
915U-2 Wireless I/O Page 107 Modbus TCP Mappings Enter the starting onboard I/O register number that the Local Register specified Modbus Master transaction will transfer I/O to/from. Specify the number of consecutive I/O register to be I/O Count transferred for the specified transaction. -
Page 109: Appendix F: Gnu Free Document Licence
Page 108 915U-2 Wireless I/O Appendix F: GNU Free Document Licence Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. - Page 110 915U-2 Wireless I/O Page 109 the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language.
- Page 111 Page 110 915U-2 Wireless I/O Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program.
- Page 112 915U-2 Wireless I/O Page 111 works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it.
- Page 113 Page 112 915U-2 Wireless I/O Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation.
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