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Troubleshooting

Manual Documentation Number: ZXTx-IO-x-0712m

53

7.1.4 Testing AO

in “Voltage” Mode

To test an Analog Output in “voltage” mode the following can be performed. Refer to “Appendix E: Zlinx Xtreme I/O Models
and Features

” for the list of Analog Output modules. On the corresponding Zlinx Xtreme I/O device on System-1 connect an

AO to a voltmeter as shown in the figure below (Fig 7-5). Supply a voltage signal on the AI side of System-2. Confirm on
System-1 with a voltmeter that the voltage on the corresponding output matches the voltage input.

AOutx

COM

Figure 7-5

Analog Output (Sourcing driver) wiring

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Summary of Contents for ZXT24-IO-222R2

Page 1: ...Manual Documentation Number ZXTx IO x 0712m Z Zl li in nx x X Xt tr re em me e I IP P6 67 7 W Wi ir re el le es ss s I I O O PRODUCT MANUAL ZXT9 IO 222R2 ZXT24 IO 222R2 ...

Page 2: ..._______________ 2010B B Electronics Mfg Co Inc No part of this publication may be reproduced or transmitted in any form or by any means electronic or mechanical including photography recording or any information storage and retrieval system without written consent Information in this manual is subject to change without notice and does not represent a commitment on the part of B B Electronics Mfg C...

Page 3: ... 2 Mode LEDs 10 2 5 3 Wireless LED 10 2 5 4 Power LED 10 2 5 5 I O Status LEDs 10 2 5 6 Configuration Pushbutton 10 2 5 7 Power I O Terminals 11 2 5 8 USB Port 11 3 HARDWARE INSTALLATION 12 3 1 RECOMMENDED PRACTICE BEFORE INSTALLATION 12 3 2 RF SITE CONSIDERATIONS 12 3 3 DIMENSIONAL INFORMATION 13 3 4 MOUNTING OPTIONS 13 3 4 1 Without the mounting ears 13 3 4 2 With Mounting ears 13 3 5 CABLING OP...

Page 4: ...s 37 6 1 3 2 2 Digital Inputs 38 6 1 3 2 3 Analog Inputs 38 6 1 3 2 4 Analog Outputs 38 6 1 3 2 5 Modbus Frequency Counters Inputs 38 6 1 3 3 Modbus I O Addressing 40 6 1 4 Peer to Peer Mode Settings 40 6 1 4 1 Peer to Peer Master 40 6 1 4 2 Peer to Peer Slave 41 6 1 5 Input Output Settings 42 6 1 5 1 Digital Input Configuration 42 6 1 5 2 Digital Relay Output Configuration 43 6 1 5 3 Analog Input...

Page 5: ...S AND FEATURES 59 APPENDIX F CONVERT VOLTAGE CURRENT TO DAC 60 APPENDIX G RADIO FREQUENCY BASICS 62 What is dBm 62 Lower Frequencies Better Propagation 62 Range Performance 62 RF Noise 62 Fade Margin 63 Remember Your Math 63 RF Attenuation and Line of Sight 63 Path Loss Rules of Thumb 64 Antennas 64 Cable Loss 64 APPENDIX H TRANSMIT POWER DBM TO MW CONVERSION 66 GLOSSARY 67 INDEX 69 ...

Page 6: ......

Page 7: ... equipment damage and bodily injury 1 3 Safety Information WARNING Exposure to RF energy is an important safety consideration The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its actions in Docket 93 62 and OET Bulleting 65 Edition 97 01 DO NOT Operate unless all RF connectors are secure and any ope...

Page 8: ... and cable options Electrical Installation This section guides you through the wiring and termination for power supply as well as analog and digital I Os Software Installation This section guides you through the software and USB driver installation process The Software Configuration screens are explained in detail Startup Configuration In this section both easy setup through push button and advanc...

Page 9: ...a radio modem Convert Voltage Current to DAC Analog to Digital conversation for voltage and current I Os are explained RF Basics This section offers a good description of Proprietary Radio Frequency communication Zlinx Xtreme to Zlinx Gen II Compatibility This section shows the compatibility of both indoor and outdoor versions of I O modules and radio modems Glossary Glossary covers main terms whi...

Page 10: ...HSS 900 MHz Technology Signal strength indicator aids troubleshooting 3 dBi for 900 MHz 2 1 dBi for 2 4 GHz RPSMA male dipole Wide temperature range 40Cº to 74 Cº Versatile power 10 to 30 VDC Software for Windows XP Home or Professional SP3 Windows 2000 SP4 Vista 32 bit Windows 7 I O Status Monitoring CE CSA approvals Compatibility with Zlinx Gen II indoor models AES Encryption 128 Bit on SR model...

Page 11: ...range IP67 I O module 2 Analog In 2 Analog Out 2 Digital In 2 Relay Out 2 ZXT9 IO 222R2 900 MHz Long range IP67 I O module 2 Analog In 2 Analog Out 2 Digital In 2 Relay Out 2 2 Package Contents Zlinx Xtreme IO Modules are shipped with the following items included Zlinx Xtreme I O module Standard antenna Optional mounting ears Mounting screws o M4 0 7 25mm SS Phillips Pan Hd Machine Screws qty 4 o ...

Page 12: ...ssible or it is very expensive Typical examples include remote monitoring and control applications in clean rooms buildings across parking lots or highways remote water or fuel tank level monitoring remote pump station control etc In Peer to Peer mode two Zlinx I O modules of same type can be configured to provide wire replacement functionality Input count of one module must match the output count...

Page 13: ...ormation about the Modbus register mapping Figure 2 2 Modbus I O Mode In Modbus I O mode up to 247 Zlinx I O modules can be connected to a Modbus RTU master through a Radio Modem Modules of both Zlinx Xtreme outdoor and Zlinx Gen II indoor types can be mixed and matched as long as their frequency rating is the same 2 3 3 Repeater Mode Figure 2 3 I O Module as a Repeater When a Zlinx Xtreme I O Mod...

Page 14: ...4 2 Digital Outputs Digital Outputs send on off signals low or high logic levels to drive external devices such as indicators relay coils or the inputs of other equipment such as PLC s SCADA etc Digital Outputs in Zlinx Xtreme I O modules have a Form C Relay common normally open and normally closed rated at 4A and 250VAC 2 4 3 Analog Inputs Each analog input can be individually configured as volta...

Page 15: ...mponents RSSI LEDs Mode LEDs I O Status LEDs Wireless Power LEDs Figure 2 4 External View of Zlinx Xtreme I O module USB Port Configuration Pushbutton Power I O Terminals Figure 2 6 Internal View of Zlinx Xtreme I O module The external and internal view of the I O modules is shown as above ...

Page 16: ...indicates that an adequate dc power is available to the module 2 This LED will flash on Comm Fail 2 5 5 I O Status LEDs Green status LEDs show the status of the digital inputs and relay outputs in the I O module 2 5 6 Configuration Pushbutton The Configuration Button allows the user to select one of the following I O operation modes without the need for a PC Modbus Peer to Peer Master Peer to Peer...

Page 17: ...lave Timeout 30 sec 30 sec Modbus mode Radio Network 0x0c 0x00 Radio ID Number 0x11 0x11 Radio Output Power 4 63mw 4 1w Number of Retries 10 10 AES Security Disabled Disabled Modbus Address 1 1 OTA Baud Fixed 115200 Modbus Slave Timeout 30 sec 30 sec Fixed for OTA Baud means that this parameter can t be changed and is equal to 250 Kbps Refer to section 6 for parameter descriptions 2 5 7 Power I O ...

Page 18: ...factors There are several ways to optimize the RF environment to ensure satisfactory performance A partial list of these follows Select the Zlinx Xtreme I O radio option that provides sufficient power for your application Lower frequencies travel farther and are less affected by absorption in materials Higher power levels generally provide greater penetration through objects Select installation lo...

Page 19: ...an be mounted on a back panel or a machine by removing the top lid The top lid is removed by unscrewing the 4 corner screws The module can be mounted using the supplied screws and nuts through the corner holes Once secured fasten the top cover 3 4 2 With Mounting ears 4 optional mounting ears and screws are supplied as accessories The ears can be attached to the Zlinx Xtreme by removing the top co...

Page 20: ...ies Unused hole must be plugged by the supplied membrane gland in order to maintain IP67 rating 3 5 1 Cable Glands NOTE the Cable Glands cannot be used for Class 1 Division 2 applications Please see the Quick Start Guide for UL Class 1 Division 2 installation instructions A Cable Gland is used to maintain the water tight rating while allowing a cable to enter the enclosure The assembly consists of...

Page 21: ...Zlinx Xtreme I O module where conduit installation is preferred to route the cables It is suited to connect or 3 8 conduit fittings and consists of a Body Nut and Gasket suitable for IP67 rating It is used to secure threaded half inch rigid service entrance conduit Figure 3 4 inch Threaded Conduit Hub with dimensions 1 Insert the treaded end of the body into the conduit knock out from the outside ...

Page 22: ...na Specifications Impedance 50Ω Connector RPSMA Female VSWR 2 0 Max in band Gain 3 0 dBi Polarization Vertical Part Number ZXT9 ANT1 2 4 GHz Supplied Antenna Your Zlinx Xtreme 2 4 GHz product comes supplied with a rubber duck antenna which can be articulated up to 90 degrees Then antenna is a wave dipole with an Omni directional pattern and vertical polarization It is recommended that your Zlinx X...

Page 23: ...gi Antenna Yagi Antenna Omni Antenna Radio Modem I O Module I O Module Figure 3 8 Point to Point System Figure 3 9 Point to Multi Point ModbusSystem Extension cables are available to connect the radios to the antennas Lightning arrestors are highly recommended in outdoor installations where thunderstorms and lightning are commonplace 3 5 5 1 High Gain Omni Antenna An Omni directional antenna is an...

Page 24: ...na A Yagi Uda Antenna commonly known simply as a Yagi antenna or Yagi is a directional antenna system consisting of an array of a dipole and additional closely coupled parasitic elements usually a reflector and one or more directors The dipole in the array is driven and another element typically 5 longer effectively operates as a reflector Other parasitic elements shorter than the dipole may be ad...

Page 25: ...For Use With ZXT24 RM 2 4 GHz Impedance 50 Ω Connector N Female VSWR 1 5 1 in band Gain 12 5 dBi Polarization Vertical Length 18 in Mounting Brackets Included 3 5 5 3 Antenna Cables Connectors Antenna cables and connectors must be used when extending the standard or high gain antenna for outdoor antenna applications Appropriate cable and connector must be chosen It is important to know that RF sig...

Page 26: ... dB 0 405 in Figure 3 13 Antenna Cable Options and Signal Loss Information Figure 3 14 LMR400 Cable Cross Section Figure 3 15 LMR195 Cable Cross Section Figure 3 16 LMR100 Cable Cross Section Along with the cable a proper connector must be chosen The I O module uses an RPSMA Male plug connector The optional high gain antenna has an N type Female connector Therefore an antenna cable that has a RPSM...

Page 27: ...arrestors limit surges to less than 45 volts in approximately 100 nanoseconds A gas discharge tube changes from an open circuit to a short circuit in the presence of energy and voltage surges giving those surges a direct path to ground thus protecting equipment They are designed with a rugged housing and high quality plated brass N connectors It also features a user replaceable gas discharge tube ...

Page 28: ...inations Wiring Terminals Use Copper Wire Only One Conductor per Terminal Wire range 10 28 AWG Tightening Torque 0 5 to 0 6 Nm Temperature Rating of field installed conductors 105 C minimum sized for 60 C ampacity Figure 4 1 I O Terminal Layout 4 1 Power Wiring The radio modem requires a dc power supply from an external source The permissible voltage range is 10 to 30 VDC The typical power consump...

Page 29: ...n wiring for both PNP and NPN connections with internal module power supply PWR IN DIx a PNP Sourcing Input Wiring with Internal Power Supply DIx b NPN Sinking Input Wiring with Internal Power Supply Com Figure 4 3 Typical Digital Input Wiring for PNP and NPN connection types with internal PS If an external power source is used for the digital input connections the external power supply common sho...

Page 30: ... Connection Com NC V Line V Neutral Solenoid b NC Connection NO Com NC V Line V Neutral Light Figure 4 6 Typical Digital Output Wiring for Relay Outputs 4 2 3 AI Wiring The following diagram shows typical connection wiring for Analog Inputs AINx COM Voltage or current Input Figure 4 7 Typical Analog Input Wiring 4 2 4 AO Wiring The following diagram shows typical Analog Output Wiring AOutx COM a V...

Page 31: ...o Windows 2000 32 64 bit o Vista 32 64 bit o Windows 7 32 64 bit 5 3 Installing Zlinx Manager Software The Zlinx manager software is available in the CD ROM which is included with the I O module Insert the CD into the CD drive The installation process will start automatically If it does not then navigate to the CD ROM drive using Windows Explorer software and then double click the executable file ...

Page 32: ...ed the USB drivers are available in the USB Drivers folder on the CD ROM 5 5 Establishing Connection to PC To connect Zlinx Xtreme I O to a PC 1 Open the front cover of the Zlinx Xtreme I O module 2 Apply power to the I O unit 3 Connect the PC USB port to the USB port of the Zlinx Xtreme I O Module using a USB cable 4 Now the Zlinx Xtreme I O module is ready to be configured from the PC Zlinx Xtre...

Page 33: ...Electronics Zlinx Zlinx Manager Zlinx Manager Zlinx Manager Screen opens offering navigation to Zlinx Manager or Radio Modem Manager Fig 5 4 Zlinx Manager Start Menu 2 Click on the Zlinx I O The following I O menu screen opens This screen allows access to I O Configuration Firmware Update and Monitor I O Status Fig 5 5 Zlinx Manager I O Menu Screen 5 7 Unit Discovery 1 To go to the configuration w...

Page 34: ...t found on any serial port a Check the power supply and serial cable connections b Click the Connect button The connection process will be repeated and the device should be found 5 If Automatic connection is not desired a particular COM port 1 to 16 can be specified a Select the COM port number from the Connection drop down list b Click the Connect button to initiate the connection process NOTE Cl...

Page 35: ...d communications parameters baud rate parity data bits stop bits and flow control An Update button used to save configuration parameters to the modules An Exit button 5 8 I O Configuration Options The following tabs are available in the I O Configuration Manager The configuration details are explained in Chapter 6 5 8 1 Information Tab The Information tab displays a tree structure listing I O Modu...

Page 36: ...smit Power Channel Number Network Identifier Repeater Mode and AES Encryption settings Communications Modes Peer to Peer Master Peer to Peer Slave Modbus and related parameters Parameters corresponding to the chosen communication mode 5 8 3 Input Output Tab The Input Output tab contains A tree structure listing input and output types for each module Input and output configuration options ...

Page 37: ...e Configuration Menu opens as shown in Fig 6 2 See Section 5 6 for more details 6 1 1 Wireless Settings These settings are common for the I O module irrespective of its operating mode viz Peer to Peer or Modbus I O The I O Modules can be configured for operation with different transmitter output power They can also be configured to operate on several different radio channels This allows multiple Z...

Page 38: ...devices As a responsible user make sure the transmitted power is within allowed limits for your region Xtreme Module Power Selections Factory Default ZXT24 IO 222R2 10mW 16mW 25mW 40mW 63mW 63mW ZXT9 IO 222R2 1mW 10mW 100mW 500mW 1000mW 1000mW Fig 6 3 Transmit Power Ranges 6 1 1 2 Channel Number Set the Channel Number field to match the channel used by the device with which it will communicate a I...

Page 39: ... for configuration information d The Network Identifier range is different for both radio types 2 4 GHz and 900 MHz The table below shows the channel number ranges in hexadecimal values Type Range Xtreme Module Network Identifier Range Factory Default ZXT24 IO 222R2 0x00 to 0xFF 0x00 ZXT9 IO 222R2 0x11 to 0xFF 0x11 Fig 6 5 Network Identifier Range e If the Network Identifier is changed to outside ...

Page 40: ... press CTRL and V on your keyboard The characters will appear Save this file and use it to configure the key in the downstream module iii Press the Update button on the bottom of the screen c Text Key Select this if you desire to use a text sequence to encrypt your network i On the first Xtreme Module select the Text Key option Type text into the key box The text is limited to 128 or 256 bits as a...

Page 41: ... and left mouse button to highlight all of the characters Press CTRL and C on your keyboard e With your mouse left click in the Key Box On your keyboard press CTRL and V f Press the Update Button at the bottom of the screen 2 Type Text Key a Select Text Key b If a key is displayed in the Key Box delete it c Type in the key you generated in 6 c above d Press the Update Button at the bottom of the s...

Page 42: ...to a Zlinx Wireless Modbus Modem and provides remote I O functionality The configuration screen for Modbus Mode is shown below Fig 6 7 Modbus Mode Configuration To configure the Zlinx Xtreme I O for Modbus mode 1 Select the Configuration tab 2 Select the Modbus option button 3 In the Modbus Address box type the Modbus address to be used The allowable range of Modbus addresses is from 1 to 247 The ...

Page 43: ... the function The following Modbus function codes are supported Function 1 Read DO Status Function 2 Read DI s Function 3 Read AO Status Function 4 Read AI s Function 5 Write to Single DO firmware v2 0 or higher Function 6 Write to Single AO Function 15 Write to Multi DO s For example function code 03 will query the slave to read holding registers and respond with their contents The data field mus...

Page 44: ...dress Analog Input 1 30001 Analog Input 2 30002 Fig 6 10 Analog Input Memory Table The I O module sets the register value based on the analog signal level As an example for a 0 10V selection when the analog input 1 is 5V the memory location 30001 will read 32 768 Refer to Appendix F for analog data scaling 6 1 3 2 4 Analog Outputs There are two 16 bit analog inputs available in the I O modules and...

Page 45: ...igital Inputs 1 and 2 are configured as Counter inputs are shown in Fig 6 12 Both the most and least significant counter registers have a range of 0 to 9999 and rollover Time to save totals register counts down the number of seconds from 300 0 seconds until the Accumulators are saved internally An example is a typical electric water meter that will generate a pulse per 1 10 gallon of water flowing...

Page 46: ...output register 40011 6 1 4 Peer to Peer Mode Settings Peer to Peer mode is ideal for wire replacement applications involving analog and or digital I Os A typical application is to control monitor remote devices from a PLC or SCADA system where laying cables is too expensive or cannot be done for any reason In Peer to Peer mode digital and analog signals can be wirelessly transmitted in both direc...

Page 47: ...e number of attempts that will be made to communicate with the Slave device before the module indicates communication has been lost Lost communication is indicated by the Power LED s blinking The default value of 10 is usually satisfactory The range of values is 10 to 255 Fig 6 14 Peer to Peer Master Configuration 6 1 4 2 Peer to Peer Slave Fig 6 15 Peer to Peer Slave Configuration ...

Page 48: ...ured as Discrete inputs or Counter inputs Any additional Digital Inputs operate as Discrete inputs only Counter operation is only functional when the Zlinx Xtreme I O is set up in Modbus mode Analog Inputs and outputs can be configured for voltage or current loop operation To configure Digital and Analog I O select the Input Output tab An input tree appears listing all Modules in the system and th...

Page 49: ...an be selected to indicate communication failure by selecting the check box The high or low level selection is user configurable for the communication failure condition Fig 6 17 Digital Relay Output Configuration 6 1 5 3 Analog Input Configuration 1 Select the Analog Input to be configured 2 Select the required Analog Mode 0 5 Vdc 0 10 Vdc 0 20 mA 4 20 mA 3 For calibration refer to section 6 1 7 4...

Page 50: ...utput Configuration 1 Select the Analog Output to be configured 2 Select the required Analog Mode 0 to 10 or 0 to 5 VDC or 0 to 20 or 4 to 20 mA 3 Set the value of the analog output on a communications fail safe condition 4 For Calibration of the analog output refer to the section 6 1 7 Fig 6 19 Analog Output Configuration ...

Page 51: ...If the Exception reporting timeout is set to zero the exception is sent only once to the Modbus Master Analog Value HIGH LIMIT Exception Error The High exception error is cleared when the Analog Input value falls below the high limit the dead band value Analog Value HIGH LIMIT DEAD BAND Exception Error Cleared If an Analog Input value falls below the LOW limit an exception is generated and immedia...

Page 52: ...wo methods of Calibration Single Point Only one data point is used The gain is 1 and the offset is the difference between the reference and acquired values Two Point The two data points are used to create a line The gain is the slope of the line and the offset is the intercept NOTE Power cycle does not reset Calibration settings To set Calibration for Analog Inputs 1 Connect an analog source to th...

Page 53: ...ion field If using the Two Point method repeat these steps for the second calibration point Fig 6 21 Analog Output Calibration 6 1 8 Zlinx I O Monitor From Zlinx Manager the user can choose the option Zlinx I O Monitor This option allows the monitoring of all Analog and Digital I O values in V mA on off degrees Celsius for RTD real time To start the Monitor feature 1 Start Zlinx Manager 2 Choose Z...

Page 54: ...can be removed from the Xtreme Module and it should be disconnected from the PC 6 2 Updating Zlinx I O Firmware B B Electronics continually add new features to the Zlinx Xtreme I O modules and the updated firmware would be available for download at www bb elec com Whenever the latest version of Zlinx Manager software is installed on your computer the latest version of Zlinx Xtreme I O Firmware Upd...

Page 55: ... Firmware Image drop down box select the image file hex 11 Click the Program button to load the firmware into the module 12 Repeat steps 9 to 11 for the other modules in the system 13 When all updates are complete click Exit 14 Before reconnecting the I O run the Zlinx Manager software and check to ensure all modules are configured properly 15 When the configuration check is complete a Exit the Zl...

Page 56: ...Peer to Peer Mode Operation To diagnose possible problems in Peer to Peer mode perform the following checks 1 Configure one of the two Peer to Peer base devices as a MASTER and the other as a SLAVE 2 Select a Polling rate on the Master device Typically a setting of 0 or 1 seconds works best NOTE 0 causes the firmware to transfer data as fast as possible 3 Configure a Slave Communications Failure T...

Page 57: ...re no obstacles in the path of the wireless transmission Figure 7 1 Problem Cause Resolution Table 7 1 Testing Digital and Analog I O There are simple tests that can be performed to confirm the functionality of the hardware and wiring configurations The following diagrams can be used to aid in diagnosing problems with device connections To properly connect a Digital Output to the Digital Input of ...

Page 58: ...e I O Models and Features to find out which modules are relay On System 1 on the corresponding Zlinx Xtreme I O device connect a Light through COM and NO contact of the relay output see Error Reference source not found 3 Make sure to check the polarity of the LED while connecting it On System 2 perform contact closure on the corresponding DI The relay output should turn ON and the Light should tur...

Page 59: ... I O Models and Features for the list of Analog Output modules On the corresponding Zlinx Xtreme I O device on System 1 connect an AO to a voltmeter as shown in the figure below Fig 7 5 Supply a voltage signal on the AI side of System 2 Confirm on System 1 with a voltmeter that the voltage on the corresponding output matches the voltage input AOutx COM Figure 7 5 Analog Output Sourcing driver wiri...

Page 60: ...g ZXT24 IO 222R2 Xtreme Modules 63mW ZXT9 IO 222R2 Xtreme Modules 1000mW Wireless Channel Number 0x0C for ZXT24 IO 222R2 Xtreme Modules 0x00 for ZXT9 IO 222R2 Xtreme Modules Wireless Network ID 0x00 for ZXT24 IO 222R2 Xtreme Modules 0x11 for ZXT9 IO 222R2 Xtreme Modules Repeater Mode Not selected Communication Mode Modbus Modbus Address 1 Digital Inputs Discrete PNP Analog Inputs 4 to 20 mA Analog...

Page 61: ... models 4 25 inch Omni directional rubber duck antenna PN ZZ24D ANT1 For 900 MHz models 7 7 inch Omni directional rubber duck antenna PN ZXT9 ANT1 Receiver Sensitivity ZXT24 IO 222R2 ZXT24 RM 102 dBm ZXT9 IO 222R2 ZXT9 RM 100dbm 115 2K 110dbm 9600 LED Indicators Receive Signal Strength Indicator The RSSI indicator is 8 Green LEDs in a bar graph format from Weak to Strong LEDs Number turned ON Sign...

Page 62: ... included Xtreme Module Power Connector Fixed screw terminal connector Digital Outputs Relay Number of Relays 2 Type C normally open and normally closed Output Connection 3 terminals per relay Common NO NC Common Connection 3 5mm removable terminal block 1 per bank of 4 output Ratings 250 VAC 4A 30 VDC 4A Power Consumption ZXT24 IO 222R2 SR 4 5W Max ZXT9 IO 222R2 LR 6 8W Operating Temperature 40 t...

Page 63: ...riable latencies Not every protocol can tolerate simply replacing wires with radios Protocols sensitive to inter byte delays may require special attention or specific protocol support from the radio Do your homework up front to confirm that your software won t choke that the intended radio is friendly towards your protocol and that your application software can handle it as well Assumptions No RF ...

Page 64: ...ss Description Bytes Count V Range 10001 Digital Input 1 0 1 Refer to Appendix B 10002 Digital Input 2 0 1 Refer to Appendix B 30001 30004 Analog Inputs Special Registers Modbus Address Description Bytes A D Count V I Range 30001 Analog Input 1 2 0 65535 0 10vdc 0 20ma 30002 Analog Input 2 2 0 65535 0 10vdc 0 20ma 30003 Input Power Supply 0 30 Vdc 2 0 65535 0 10vdc 0 20ma 30004 Reserved 2 0 65535 ...

Page 65: ...22R2 Base 2 4 GHz short range 2AI 2AO 2DI 2DO relay DO s ZXT9 IO 222R2 Base Repeater 900 MHz long range 2AI 2AO 2DI 2DO relay DO s Compatible Radio Modems Radio Modem Model Description Zlinx Xtreme I O Xtreme Module Model ZXT24 RM 2 4 GHz RS 232 422 485 radio modem 250kbps ZXT24 IO 222R2 ZXT9 RM 900 MHz RS 232 422 485 radio modem 115 2 kbps ZXT9 IO 222R2 Accessories Model Number Description ZZ9D A...

Page 66: ...ng Register Value to Send Voltage Desired 4096 5 ex For sending out 2 5V Holding Register Value 2 5 4096 5 2048 3 Analog Output 0 20 mA Selection Current Full Range 0 20mA DAC full range is 4096 counts as AO s are 12Bit 0 4095 range 4096 Holding Register Value to Send Current Desired 4096 20 ex For sending out 10 mA Holding Register Value 10 4096 20 2048 4 Analog Output 4 20 mA Selection Current F...

Page 67: ...ge Full Range 0 20 mA DAC full range is 65536 counts as AI s are 16 Bit 0 65 535 range 65 536 Input Register Value Actual Current 65536 20 ex Input register value for 10 mA 10 65536 20 32768 8 Analog Input 4 20 mA Selection Voltage Full Range 4 20 mA DAC full range is 65536 counts as AI s are 16 Bit 0 65 535 range 65 536 Input Register Value Actual Current 4 65536 16 ex Input register value for 10...

Page 68: ... frequencies require larger antennas to achieve the same gain Range Performance The more sensitive the radio is the lower the power signal it can successfully receive stretching right down to the noise floor There is so much variety in specifications for radio sensitivity that it is difficult to make a meaningful comparison between products The most meaningful specification is expressed at a parti...

Page 69: ...r Invest in a small 10dB attenuator pick the correct one for your radio frequency If you lose communications when you install the attenuator installed in line with one of your antennas you don t have enough fade margin Antenna cable has greater attenuation at higher frequencies Specifications vary by type and manufacturer so check them yourself but at 900 MHz a coil of RG58 in the range of 50 to 1...

Page 70: ...htly can significantly change the signal strength Some obstacles are mobile More than one wireless application has been stymied by temporary obstacles such as a stack of containers a parked truck or material handling equipment Remember metal is not your friend An antenna will not transmit out from inside a metal box or through a storage tank Path Loss Rules of Thumb To ensure basic fade margin in ...

Page 71: ...equency RG 58U LMR 400 900 MHz 1 6 dB 0 4 dB 2 4 GHz 2 8 dB 0 7 dB Loss per 10 feet 3 meters of cable length Figure G 2 Attenuation figures While long cable runs to an antenna create signal loss the benefit of elevating the antenna another 25 feet 7 6 m can more than compensate for those lost dB ...

Page 72: ... H Transmit Power dBm to mW Conversoin 66 Manual Documentation Number ZXTx IO x 0712m A Ap pp pe en nd di ix x H H T Tr ra an ns sm mi it t P Po ow we er r d dB Bm m t to o m mW W C Co on nv ve er rs si io on n ...

Page 73: ...E to DCE or DTE to DTE device DIN A standardized 35 mm wide metal rail used for mounting industrial equipment inside racks and enclosures Digital Input DI A digital input typically consists of a power supply voltage source a switch and a voltage sensing device analog to digital converter Depending on the switch s open closed status the sensing device detects a voltage or no voltage condition which...

Page 74: ... higher accuracy and repeatability Suitable for air water oil and fuel temperature measurement RTD Resistance thermometers also called resistance temperature detectors RTDs are temperature sensors that exploit the predictable change in electrical resistance of some materials with changing temperature As they are almost invariably made of platinum they are often called platinum resistance thermomet...

Page 75: ... 14 B Xtreme Module 14 C Configuration Box 15 Cu 10 46 D DC 24 DCE 25 DI 14 DIN 27 DO 14 L LED 24 LOS 28 LR 14 M Modbus map 21 Modbus Mode 5 Modes of Operation 4 P Peer to Peer Mode 4 PLC 16 Pt100 46 Pt1000 46 R Repeater Mode 6 RTD 16 S SCADA 16 sinking 28 SR 14 Z Zlinx Manager 29 ...

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