Radio/Serial Telemetry Module User Manual Thank you for your selection of the 905U radio modem. 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 905U enjoys a long life, double check ALL your connections with the user’s manual before turning the power on. CAUTION: To comply with FCC RF Exposure requirements in section 1.
Contents FCC Notice: This user’s manual is for the ELPRO series radio telemetry module. This device complies with Part 15.247 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference and 2) This device must accept any interference received, including interference that may cause undesired operation. This device must be operated as supplied by ELPRO Technologies Pty Ltd.
Radio/Serial Telemetry Module User Manual How to Use This Manual To receive the maximum benefit from your product, please read the Introduction, Installation and Operation chapters of this manual thoroughly before putting the to work. Chapter Four Configuration explains how to configure the modules using the Configuration Software available. For configuration using the on-board switches, refer to the separate Switch Configuration Manual.
Contents CONTENTS CHAPTER ONE INTRODUCTION .....................................................................................................................................7 1.1 GENERAL ....................................................................................................................................................................7 CHAPTER TWO INSTALLATION ................................................................................................................................
Radio/Serial Telemetry Module User Manual 45 6.1 6.2 DIAGNOSTICS CHART .............................................................................................................................................45 SELF TEST FUNCTIONS ..........................................................................................................................................45 6.2.1 Input to Output Reflection (105-1 only)........................................................................................
Chapter One Introduction Chapter One INTRODUCTION 1.1 General The range of telemetry modules has been designed to provide standard “off-the-shelf” telemetry functions, for an economical price. Telemetry is the transmission of signals over a long distance via a medium such as radio or twisted-pair wire. Although the is intended to be simple in its application, it also provides many sophisticated features.
Radio/Serial Telemetry Module User Manual These modules can transmit I/O messages hundreds of kilometres via the trunked radio system. 105M-1, 2 and 3 modules differ only in their input/output (I/O) design, and can interface to 105U and 105S modules. For more information, refer to the 105M User Manual. • The U-C module provides an interface between host devices such as PLC’s or SCADA computers, and a radio telemetry system comprising U and 105S radio telemetry modules.
Chapter One Introduction unlicensed operation for remote monitoring and control of equipment. That is, a radio licence is not required for the modules in many countries. See Chapter Five Specifications for details. Input signals connected to a module are transmitted to another module and appear as output signals. These input signals may also be configured to appear as “inverted” signals on the output. A transmission occurs whenever a "change-of-state" occurs on an input signal.
Radio/Serial Telemetry Module Chapter Two User Manual INSTALLATION 2.1 General The module is housed in a rugged aluminium case, suitable for DIN-rail mounting. Terminals are suitable for cables up to 2.5 sqmm in size. Normal 110/220/240V mains supply should not be connected to any input terminal of the module. Refer to Section 2.3 Power Supply. Before installing a new system, it is preferable to bench test the complete system.
Chapter Two 2.2.1 Installation AC Supply The AC supply is connected to the "SUP1" and "SUP2" terminals as shown below. + The AC supply should be "floating" relative to earth. A 220-240/16 VAC mains "plug-pack" is available for mains applications. 2.2.2 DC Supply For DC supplies, the positive lead is connected to "SUP1" and the negative to "GND". The positive side of the supply must not be connected to earth. The DC supply may be a floating supply or negatively grounded.
Radio/Serial Telemetry Module 2.2.3 User Manual Solar Supply The power supply also includes a 12 V solar regulator for connecting 12V solar panels of up to 30W, and solar batteries of up to 100AHr. The unit may not be powered from a solar panel without a battery. An 18W solar panel is sufficient for most solar applications. The size of the solar battery required depends on the I/O used. Batteries are sized for a number of sunless days with 50% battery capacity remaining as follows: No.
Chapter Two Installation The internal power supply of the module can supply a maximum 12V load of 700mA. In order to achieve this, the input power supply must be above 15VAC or 17VDC. Using these figures, it can be determined whether there is enough supply for more than one module - allow 100mA for recharging a battery. For example, assume there is a U-01 module and a 105S-01 module at the same location. The total I/O at the location is 3 analogue inputs, 6 digital inputs and 4 digital outputs.
Radio/Serial Telemetry Module User Manual The -1 and -2 modules each provide four digital inputs with 5000 volt opto-isolation, suitable for voltage free contacts (such as mechanical switches) or NPN transistor devices (such as electronic proximity switches). Contact wetting current of approximately 5mA is provided to maintain reliable operation of driving relays. Each digital input is connected between the appropriate "DI" terminal and common "COM".
Chapter Two Installation Digital outputs may be configured to individually turn off if no command message is received to that output for a certain period. This feature provides an intelligent watch dog for each output, so that a communications failure at a transmitting site causes the output to revert to a known state. See section 4.4 Changing User Options for further details. The output circuit is connected to the appropriate pair of "DO" terminals.
Radio/Serial Telemetry Module 2.4.3 User Manual Digital Outputs (-2 and -3) The digital outputs on the -2 and -3 modules are transistor switched DC signals, FET output to common rated at 30VDC 500 mA. The -2 provides one digital output and the -3 provides eight digital outputs. The first four DO’s on the -3 module are also the pulse outputs - that is, the first four DO's can be either digital outputs or pulse outputs. The function of each of these outputs may be configured individually.
Chapter Two Installation for analogue input 1 or "AI 2+" and “AI 2-” for analogue input 2, and so on for other inputs. Analogue Input 1 "AI 1+" may also be configured to control a high/low analogue set-point. See Chapter 4 Configuration for further details. Common mode voltage may be -0.5V to 27V. Shielded cable is recommended for analogue I/O loops to minimise induced noise and Radio Frequency Interference (RFI). The shield of the cable should be connected to earth at one of the cable only.
Radio/Serial Telemetry Module User Manual digital/pulse input DI 1 has a maximum rate of 1000 Hz (min. off time 0.5 ms), while DI 2-4 have a maximum rate of 100 Hz (min. off time 5 ms). When using DI 1 at high pulse rates (more than 100 Hz), a divide by 10 function may be configured to reduce the pulse count at the output, as Pulse Outputs have a maximum rate of 100 Hz. For each pulse input, both the pulse rate and the pulse count are available for mapping to a remote output.
Chapter Two Installation ensure that the RS485 is disconnected before attempting to use the RS232 port. Communication is via standard RS-232 signals. The is configured as DCE equipment with the pin-out detailed below. The serial port communicates at a baud rate of 9600 baud, 8 bits, no parity, one stop bit.
Radio/Serial Telemetry Module User Manual configuration is complete.
Chapter Two Installation RS485 is a balanced, differential standard but it is recommended that shielded, twisted pair cable be used to interconnect modules to reduce potential Radio Frequency Interference (RFI). An RS485 network should be wired as indicated in the diagram below and terminated at each end of the network with a 120 ohm resistor. - + man_905_2.1.
Radio/Serial Telemetry Module User Manual Chapter Three 3.1 OPERATION Power-up and Normal Operation When power is initially connected to the module, the module will perform internal diagnostics to check its functions. The following table details the status of the indicating LED’s on the front panel under normal operating conditions.
Chapter Three Operation to attempt to transmit to the remote module every ten minutes. For critical applications, this status can be configured to be reflected to an output on the module for alert purposes. The outputs on the module may also be configured to reset after a specified timeout (digital outputs reset to “off”, analogue outputs reset to 0 mA) allowing the system to turn off in a controlled manner e.g. a pump will never be left running because of a system failure.
Radio/Serial Telemetry Module User Manual Repeaters can be used in a system to increase range. Each U unit can be configured to act as a repeater. When configuring an input to be mapped to an output, the communications path to the output unit, including the repeater addresses is specified. The U acts as a digital repeater, that is, the signal is decoded and then retransmitted “as new”.
Chapter Three Operation calculating the appropriate sensitivity required for a given application: Instantaneous change of 2 x sensitivity on input → 3 second output response Instantaneous change of 10 x sensitivity on input → 5 second output response The analogue inputs have 15 bit resolution and 0.016mA accuracy. An example of an analogue input and how the output follows it is shown below: Pulse input change of state Pulse input counts do not use “change-of-state” transmissions.
Radio/Serial Telemetry Module User Manual will be output evenly over the pulse output update time which is configured in the module. For example, assume that module receives a pulse input update message from the remote module, and the difference between the pulse input count and the pulse output count is 12 pulses. The will then output the 12 pulses evenly over the next minute (if the pulse output update time is 1 minute).
Chapter Three 3.1.4 Operation Start-up Poll After a module has completed its initial diagnostics following power up, it will transmit update messages to remote modules based on the values of the module’s inputs. The module’s outputs will remain in the reset/off/zero condition until it receives update or “change-of-state” messages from the remote modules. The module can transmit a special “start-up poll” message to another module.
Radio/Serial Telemetry Module User Manual Messages transmitted via serial link are received in less than 20 mSec, however a message sent by radio takes approx 100 mSec. These delays are not significant is most applications, however if your application requires faster responses, then the above delays need to be considered. 3.2.2 Radio Channel Capacity Messages sent on a cable link are much faster than on a radio channel, and the capacity of the radio channel must be considered when designing a system.
Chapter Three Operation There are several ways of improving a marginal path :• Relocate the unit to a better position. If there is an obvious obstruction causing the problem, then locating the unit to the side or higher will improve the path. • If it is not practical to improve a marginal path, then the last method is to use another module as a repeater. A repeater does not have to be between the two modules (although often it is).
Radio/Serial Telemetry Module Chapter Four User Manual CONFIGURATION 4.1 Introduction The modules may be configured by connecting a computer (PC) using the Configuration Software programme. Alternatively, the module may be configured by the on-board miniature switches located under the blue cover on the front of the module. This chapter describes the default configuration of the module and using the Configuration Software Programme.
Chapter Four Configuration In addition to these network configurations, operational parameters called User Options may be configured to change the features of the operation. These parameters may be configured using the Configuration Software of configuration switches (see Switch Configuration Manual) 4.2 Easy Configuration Using Default Settings If your application requires only a single pair of modules, communicating via radio or serial link, default settings may satisfy your needs.
Radio/Serial Telemetry Module User Manual For -2 and -3 modules, the default configuration is as follows :- The following table details the default values for User Options : Option Factory Set Value Update transmissions Every 10 minutes Analogue Change-of-state sensitivity 3% Reset outputs on Comms fail No Analogue Setpoints (if mapped) Low Set point = 30% High Set point = 75% Pulse Output Rate Scaling 100 Hz (if Pulse Rate is mapped) Digital Input Debounce Time 0.
Chapter Four Configuration 4.3 Configuration Software This chapter describes installation and operation of configuration software for the radio and serial telemetry modules. Configuration software eliminates the need for configuration of the unit via the 16 DIL switches under the blue plastic plug.. This software provides all of the functions available through the switch configuration as well as additional configuration options not available through switch configuration.
Radio/Serial Telemetry Module 4.3.2 User Manual Installation Running from floppy disk The software may be run directly from the distribution disk. If the software is to be used in this manner, a copy of the distribution disk should be made, and the copy used to run the software. Installing to a hard disk Most users will want to install the configuration software to the hard disk of their computer.
Chapter Four Configuration This screen shows the system address, unit address, a summary of all of the mappings configured, and the current file (if any) being used. To move between editing the system address, unit address, and configuration mappings, use the key, or use the key in conjunction with the highlighted letter. Alternatively, simply click on the appropriate section with the mouse.
Radio/Serial Telemetry Module User Manual Changing an existing mapping Select the mapping to change using the mouse or arrow keys, and either press the key, or click the right mouse button. Deleting an existing mapping Select the mapping to delete using the mouse or arrow keys, and press the key to delete the mapping. A message asks for confirmation to ensure mappings are not deleted accidentally.
Chapter Four Configuration Select the desired mapping configuration, then press or select the OK button on the dialogue box to return to the main screen. Outputs are identified by the corresponding output name for each type of destination module.
Radio/Serial Telemetry Module User Manual Successful comms does not turn off the output, so the “Drop outputs on comms fail” (Refer below) time should be set to a period similar to the update time for the remote. This allows comms fail indication to multiple remotes to be configured to appear at the same output, which acts as a general comms fail indication. Configuring a “Comms Fail Address” of zero causes communication failure to any destination module to be indicated on the selected output.
Chapter Four • Analogue Sensitivity • Reset Output on Comms Fail • Digital/Analogue Debounce (-1 and -2 only) • Analogue Debounce (-2 only) • Set-points (-1 and -2 only) • Pulse Rate Scale (-1 and -2 only) • Pulse Output Update (-1 and -3 only) Configuration Update Times allows configuration of how frequently each configured mapping is updated (Integrity Update). The period of update (check) transmissions may be configured individually for each input.
Radio/Serial Telemetry Module User Manual switches) a debounce time of up to 8 seconds may be configured. The configured debounce time has no affect on pulse inputs. Note that the analogue debounce is not configurable for the -1, but is configurable in the -2. Set-points allow a remote digital output to be turned on and off depending on the value of an analogue input. The “set-point status” internal input must be mapped to an output for this option to have effect.
Chapter Four • Configuration From the Communication menu, select “Program The 105” The configuration program will now attempt to download the configuration data to the module. If all goes well, a “Programming” prompt will appear. This prompt will remain until programming of the is complete. If the is not correctly connected, or is not turned on, it may take up to a minute for the configuration program to stop trying to connect to the .
105 Radio/Serial Telemetry Module Chapter Five User Manual SPECIFICATIONS General Radio standards – 905U FCC Part 15.247 902 – 928 MHz, 1W Housing 130 x 185 x 60mm Powder-coated, extruded aluminium DIN rail mount Terminal blocks Removable LED indication Power supply, Suitable for 2.5 mm2 conductors OK operation, digital I/O, RX and TX Operating Temperature -20 to 60 degrees C Power Supply Battery supply 11.3 - 15.
Chapter Five Specifications Typical distance 1km Data transmission On change-of-state Update time configurable + integrity update Protocol - serial - radio Communications fail status asynchronous ARQ, with 16 Automatic acknowledgments with up bit CRC to 4 retries synchronous ARQ May be mapped to local or remote output Resetting of outputs on comms fail configurable -1 Four Opto-isolated (5000V)inputs, suitable for voltage free contacts or NPN transistor, contact wetting current 5mA, input debounce
105 Radio/Serial Telemetry Module 105-3 None Analogue Input Setpoints 105-1 AI 1 only 105-2 AI 1-6 Analogue Outputs User Manual Accuracy 10 bit, Digital filter time constant 1 second (config.) Configurable high & low set-points, allowing set/reset of remote digital outputs 105-1 Two 4-20mA current sink to common, max loop voltage 27V, 105-2 None Resolution 15 bit Accuracy 10 bit (0.
Chapter Six Chapter Six Troubleshooting TROUBLESHOOTING 6.
105 Radio/Serial Telemetry Module 0 0 0 0 User Manual 0 0 0 0 1 0 0 0 0 0 0 0 Input signals may now be connected to the input terminals of the module. If the module is operating correctly, then the input signals will be reflected to the corresponding output on the same module. For example, if DI 1 is connected to common - i.e. the first digital input is turned "ON" - then DO 1 will activate, if the module is functional.
Chapter Six Troubleshooting 105 V1.0 1052 V1.0 a) Ins a) Digital Inputs b) Tones b) Analogue Inputs c) Comms c) Tones d) DO1 d) Comms e) DO2 e) DO1 f) DO3 f) Switch g) DO4 g) Signal h) AO1 > i) AO2 j) Switch k) Signal > 1053 V1.0 a) Ins b) Tones c) Comms d) DO1 e) DO2 f) DO3 g) DO4 h) DO5 i) DO6 j) DO7 k) DO8 l) AO1 m) AO2 n) AO3 o) AO4 p) AO5 q) AO6 r) AO7 s) AO8 t) Switch u) Signal > Choose an item from the menu by entering the letter before that item.
105 Radio/Serial Telemetry Module User Manual AI1 and AI2 represent the value for the two analogue inputs. Full scale input (20 mA) is displayed as C000, 4mA is displayed as 4000, and 0ma is displayed as 2000. Analogue inputs are filtered digitally with a time constant of 1 second, so a sudden change in the analogue input current will result in a slower change in displayed analogue value, finally settling at the new value.
Chapter Six Troubleshooting Analogue Inputs VBAT PR1 PR2 PR3 8138 4000 4000 4000 PR4 AI1 AI2 AI3 AI4 AI5 AI6 4000 0D3A 0CD2 0CC7 0CC7 0CD4 0CC7 105-3 Modules ML 00 VBAT VSLR 9FA2 0000 Tones This provides the same function as described above in 6.2.2. Tone Reversals. This function may be used in conjunction with the Signal option (described below) to check the path between two 105 units. Comms This function allows monitoring of all messages transmitted and received over the radio.
105 Radio/Serial Telemetry Module User Manual AO1 to AO8 These options allow the user to set analogue outputs to any value. To set the output, select the corresponding menu item. At the prompt type the value required for the analogue output as a four digit hexadecimal value. Refer to the table above for analogue current/expected value relationship. To set AO2 on 105-3 to 19 mA : >m AO2 >B800 Switch This option allows testing of the DIL (Dual In Line) switches used for the configuration of the module.
Chapter Six Troubleshooting range of influences, including atmospheric conditions, changing landscape, degradation of aerials or co-axial cable, low battery voltage etc. Fade margin is an indication of how far a radio path can deteriorate before communication becomes unreliable. When using the Signal feature, a meter is displayed with a mark indicating the current received radio signal level. To check the radio path between two units, select the signal option at the local unit.
105 Radio/Serial Telemetry Module User Manual Chapter Seven WARRANTY & SERVICE We are pleased that you have purchased this product. Your purchase is guaranteed against defects for a 365 day warranty period, commencing from the date of purchase. This warranty does not extend to: - Failures caused by the operation of the equipment outside the particular product's specification.
Appendix A Appendix A System Example SYSTEM EXAMPLE The following example of a system is a comprehensive guide to using some of the features of the 105 range and design of 105 system. The example application is a pump station which supplies water from a reservoir to a tank station. Signals are transferred between the pump station and tank station by radio - the distance between the two stations is 1.5 km (1 mile), and the radio path is heavily obstructed by buildings and trees.
105 Radio/Serial Telemetry Module User Manual The following design points should be noted :• A test of the radio path between the pump station and the tank station indicated that the radio path would be reliable provided aerials were installed at 6 m above the ground. At each site, the coaxial cable would be approx 10 m in length, so it was decided to use 3 element Yagi aerials with RG58 coaxial cable - the Yagi aerials would compensate for the loss in the cable.
Appendix A System Example Tank Station Configuration The 105U-2 module has the following configuration :- Note the following points in the configuration : • The configuration software used was CFG105-2.EXE as the module is a 105U-2. • The system address is 10587 (a random selection) and unit address is 2. • PIN1 (the flow meter) is mapped to Out3 (D/P output 3) at #96 which is the control station #1 is a repeater. • The pulse rate for this PIN (PLSR1) is mapped to Out2 at #97 via #1.
105 Radio/Serial Telemetry Module User Manual • The pulse rate scaling for PIN1 has been set to 5 Hz to match the maximum flow rate of the flow meter. Note that PIN1 has not been configured for "divide by 10" (for 1000 Hz pulse signals). • AIN1 (the level transducer) is mapped to Out1 at #97 via #1. The analogue debounce has been set to 2 sec. This is to avoid any wave action on the surface of the tank causing un-necessary change transmissions.
Appendix A System Example Note the following points in the configuration : • The configuration software used was CFG105-1.EXE as the module is a 105U-1. • The system address is 10587 (same as before) and unit address is 1. • DIN1 (pump fault signal) is mapped to Out1 (DO1) at #96 which is the control station. Note that no repeater address is necessary as there is a direct link between #1 and #96.
105 Radio/Serial Telemetry Module User Manual Control Station Configuration The 105S-3 module has the following configuration :- Note the following points in the configuration : • The configuration software used was CFG105-3.EXE as the module is a 105S-3. • The system address is 10587 (same as before) and unit address is 96. As the module is a 105-3 module, it will automatically assume addresses #96 and #97. • The only mappings are Start-up polls.
Appendix A System Example digital outputs. In the event of a system failure, the digital outputs will stay at their last correct status, but the analogue outputs will reset to 0 mA. System Failure Alarm After the system had been running for some time, the operators wanted a "system failure" output at the control station, to warn the operators that there was a fault with the system.
