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8B SLX300 Data Acquisition System Software User Manual

1. Scan List 4864 4912 0x1300 0x1330 End of list Indicator 255 0x00FF Scan Interval 4913 0x1331 41780000 Sample Rate Scan Buffer Size 4914 0x1332 2 1920 Buffer size in words 100 28 8B isoLynx SLX300 Software User Manual 8 0 Reading Analog Data In order to acquire data an 8B input module must be installed in one or more of the analog input channels The method in which data is read from analog input channels depends on the configured scan mode see Section 7 1 Scan Mode This section describes how to read data using Continuous and User Defined Scan Modes 8 1 Continuous Scan Data To start a continuous scan write a 1 to the Scan Mode Register when the system is in idle mode The continuous scan LED will turn on to indicate the continuous scan is in progress To stop a continuous scan write a O to the Scan Mode Register the system will then return to idle mode Four types of data can be read from analog input channels while in Continuous Scan Mode e Recent A channel s most recent conversion result e Average A channel s running average The weight used in the average calculation is a configurable parameter see Section 4 0 Analog ADC DAC Channel Configuration e Maximum A channel s largest conversion result since the maximum was last reset e Minimum A channel s smallest conversion result since the minimum was last reset 8 1 1 Continuous Scan Data Registers The following ta
2. 10 2 6 PWM Generator Function To use the PWM generator function write a 6 to the base address of one of the timers and configure the generator as described in Section 6 6 PWM Generator To start the generator write a 1 to the Arm Disarm register and to stop the generator write a 0 to the Arm Disarm register The following table identifies the Modbus addresses access and data values used to operate the PWM generator function 36 Table 10 7 PWM Generator Registers 8B isoLynx SLX300 Software User Manual REGISTER ADDRESS ACCESS DATA VALUES Arm Disarm Base 1 R W 0 Disarm 1 Arm Status Base 2 R Status 10 2 7 One Shot Pulse Generator Function To use the one shot pulse generator function write a 7 to the base address of one of the timers and configure the generator as described in Section 6 7 One Shot Pulse Generator To start the generator write a 1 to the Arm Disarm register and to stop the generator write a O to the Arm Disarm register The following table identifies the Modbus addresses access and data values used to operate the one shot pulse generator function Table 10 8 One Shot Pulse Generator Registers REGISTER ADDRESS ACCESS DATA VALUES Arm Disarm Base 1 R W 0 Disarm 1 Arm Status Base 2 R Status Pulse Count Base 4 5 R W Puge count Write any value to reset to zero 37 8B isoLynx SLX300 Software User Manual 11 0 User
3. 31 8B isoLynx SLX300 Software User Manual from or written to specific locations in the middle of the memory segment If a read or write operation exceeds the 16k segment boundary the operation wraps around to the beginning of the segment The buffer memory is volatile Data stored here will be lost upon power cycle reset or brownout The following table identifies the Modbus register addresses and data values used to configure a 4x16k words buffer memory Table 9 3 4x16k Buffer Registers REGISTER ADDRESS DATA VALUES Channel 0 16k Buffer 4432 4442 0x1150 0x115A Data 108 4084 0 5V Channel 1 16k Buffer 4448 4458 0x1160 0x116A 0 Stop 4095 Loop Back Channel 2 16k Buffer 4464 4474 0x1170 0x117A Channel 3 16k Buffer 4480 4490 0x1180 0x118A 9 2 2 DAC Interval Register The following table identifies the Modbus register address and data values used to configure the DAC interval parameters Table 9 4 DAC Interval Register REGISTER ADDRESS DATA VALUES DAC Interval 4416 0x1140 1 65535 Default 10ms 9 2 3 DAC Burst Control Register The following table identifies the Modbus register address and data values used to configure the DAC burst control parameters Table 9 5 DAC Burst Control Registers REGISTER ADDRESS DATA VALUES Burst Scan Control 4608 0x1200 0 Stop 1 Run Writing a 0 to the Burst Control Register w
4. 8B47K 13 100 C to 1350 C 8B47K 14 0 C to 1200C Linearized T type thermocouple input modules 8B47T 06 100 C to 400 C 8B47T 07 0 C to 200 C Table 4 6 CJC Lower and Upper Range Registers REGISTER ADDRESS DATA VALUES Lower Range Registers 5920 5931 0x1720 0x172B En E ge Upper Range Registers 5932 5943 0x172C 0x1737 UE i 4 5 Alarms Alarm processing and control can be enabled on any analog input channel and can be configured on a per channel basis The alarm parameter register must be configured before the alarm can be enabled 4 5 1 Alarm Channel Control Registers The following table identifies the Modbus register addresses and data values used to configure the alarm control parameters See Section 2 2 4 Alarms for a discussion on how alarms work Table 4 7 Alarm Channel Control Registers REGISTER ADDRESS DATA VALUES High Low High Low Ig EOW e 8192 8203 0x2000 0x200B Alarm Control Code Alarm Control Registers Default 0 High High Low Low Alarm Control Registers 8704 8715 0x2200 0x220B High High Low Low Alarm Control Code Default 0 15 8B isoLynx SLX300 Software User Manual Alarm control codes for High and Low Limit alarms are as follows H L Alarm Control H L Control Mode H L Control Limit H L Control Output Active H L Control Output Channel H L Control Mode 10000 Tracking Mode 20000 Latched Mode H L Control
5. RESET TYPE PARAMETERS e Analog output channels to configured Standard Reset default output settings e Analog input channels average maximum and minimum values e Scan sample and mode register e CJC control register e Alarm control and status register e User data except non volatile e All parameters listed under Standard Reset to Default Reset plus e ADC average weight scan list scan interval buffer size gain coefficient and offset coefficient register e DAC default output slope intercept and 40 8B isoLynx SLX300 Software User Manual scan interval register e CJC type and temperature coefficient register e Alarm upper limit lower limit HH limit LL limit and deadband register Table 13 3 Digital UO Parameters Affected by Reset Commands RESET TYPE PARAMETERS e Digital output channels to configured Standard Reset default output settings e All parameters listed under Standard Reset plus Reset to Default e Channel states e Default outputs 13 2 1 Reset Registers Writing a reset register with an appropriate data value will cause the system to undergo a firmware reset The data value written determines the type of reset NOTE The 8B isoLynx SLX300 sends a response to the reset register write before carrying out the reset This means the system will be unresponsive to the host immediately after the host receives the reset response The host
6. 16k per channel A scan interval needs to be configured and then a scan is started with a Modbus Write Registers command to the Scan Control register The DAC User Defined Scan Mode Burst Mode has the following configurable parameters Table 9 2 Configurable DAC Burst Mode Parameters DAC BURST MODE PARAMETER VALID SETTINGS DEFAULT SETTING 0 Stop 1 Run Burst Scan Control Write a O to reset buffer memory 0 pointers Interval 1 65535ms 10ms Data 0 4095 0 0V 4x16k Buffer 4095 5V 0 1 Stop 4096 Loop Back 9 2 1 4x16k Buffer Registers Valid data has a range of 0 to 4095 which represents a 0 5 volt output signal from the DAC to the input of an 8B39 or 8B49 module A data value of 1 OxFFFF will cause the scan to stop and a data value of 4096 0x1000 will cause the scan to loop back to the beginning and restart Ten Modbus register addresses are used to read and write data from or to the 16k segment of buffer memory associated with each output channel A read or write to the bottom address in each segment allows the user to transfer 10 data values at a time from or to the memory After each read or write operation the buffer memory pointer is incremented such that subsequent read or write operations to the same bottom address will advance to the next 10 value block of the 16k memory Read and write operations occur sequentially starting at the beginning of the memory segment Data cannot be read
7. A eei 4 2 23 Cold Junction Compensation CC 5 2 2 4 Adu AAA ies 5 2 3 Digitallbata il IE eu tee AT tnter 5 2 3 1 Reading Digital Dato EE 5 2 39 2 Writing Digital Data icit A dee tbe oi retibus 5 2 3 3 Digital VO Special Functions niinniin iiaea iad adi iddia 5 8B isoLynx SLX300 Communication Interface Configuration sssees 8 331 Oe TEE Ed ee EE 8 3 1 1 Modbus R TU ss ca e eicit 9 erit Eo ea A eae cat 8 3 1 2 Modbus TOP teint oT eate toad eem 8 3 1 3 Modbus title Ree ET 8 3 1 4 Modbus Addresses iniecit ee d leue deeds de dote de eed du va denne 8 3 1 5 ele te EE 9 3 2 Changing the Communication Protocol Settings esssssssesssee eene 9 3 3 Resetting Communication Parameters to Factory Default Values sss 9 3 4 Modbus Slave D E 9 3 5 Modbus RTU Parameters uenisse iana ai a enne d ei nnne sse tr nnne nennen 9 3 5 1 Modbus RTU Parameter Registers AA 10 3 6 Modbus TCP Parameter 10 3 6 1 Modbus TCP Parameter Registers enne nennen 10 Analog ADC DAC Channel Configuration enne nenne 12 4 1 Analog ADC DAC Channel Giates nnne nennen 12 4 2 Analog ADC Channel Average Weights nnne 13 4 2 1 Analog Channel Average Weight Heglsters eene 13 4 3 Analog DAC Channel Default Outputs oooonocccincccnnccnnoncnonocnnancccnnncc ronca nc rr nennen enne 13 4 3 1 Analog Channel Default Output Registers oooocococinncccnnccococcccnonannnonnnano conan cnn nan nn nana ccnnnccnns 13 4 4 Cold Junction Comp
8. 6 6 PWMI Gerierator onere d Arta ee dd Wey avn aa Ca At eeu daga der des 25 6 7 One Shot Pulse Generator 25 7 0 Analog Input Scan Configuration sssssssssseseseeeeee ener nnns 26 7 1 Scan Mod cadit eic te a te ic eicit ase ra dat M atouts etui og eue cda 26 7 1 1 Scan Mode R glster rete oe ia tea dE us 26 7 2 User Defined Scan Parameters AA 27 7 2 1 User Defined Scan Parameter Registers 28 8 0 Heading Analog HR EE 29 8 1 Continuous Scan Data 29 8 1 1 Continuous Scan Data Registers oooooonnncciniccncccnnnnnnnccnnnncccnnrnn nana nan cc nnrca narran 29 8 2 User Defined Scan Data ui tont Piece tere ud ntu HR tiec Pen rs 29 8 2 1 Starting a User Defined Scan eene nnne nennen 30 8 2 2 Polling the Scan Count Register nennen nennen 30 8 2 3 Reading Data from the Scan Data Register sse 30 8 2 4 User Defined Scan Data Registers enne 30 9 0 Writing Analog Output Data sssssssssssesseseene nennen nnne tentent rss nnns enter renis snnt nnns 31 9 1 Write Analog Output Data Registers sse enne nennen 31 9 2 Analog Output DAC User Defined Scan Burst Model 31 9 2 1 4x16k Buffer Registers enne enne nnn et rennen sns nens 31 9 2 2 DAC Interval Register AAA 32 9 2 3 DAC Burst Control Register sss enemies 32 8B isoLynx SLX300 Software User Manual 10 0 Digital Data and I O Special FUNCTIONS nennen nnne nennen 33 10 1 Digital Data Read andi Wri
9. ADDRESS DATA VALUES Ticks per Revolution Base 9 1 OxFFFF Default 1 Input O Polarity Base 10 0 rising 1 falling 2 both Timer Gate Base 11 0 user 1 positive 2 negative Alarm Configure Base 35 1 pulse 2 frequency 3 RPM Alarm High High Limit Base 36 High High Limit 2 words Alarm High Limit Base 38 High Limit 2 words Alarm Low Limit Base 40 Low Limit 2 words Alarm Low Low Limit Base 42 Low Low Limit 2 words Alarm HL Deadband Limit Base 44 Deadband 1 word Alarm HHLL Deadband Limit Base 45 Deadband 1 word Save Configuration to EEPROM Base 90 WE any Ee current 22 8B isoLynx SLX300 Software User Manual 6 2 Pulse Frequency Counter with De bounce The following table identifies Modbus registers used to configure the Pulse Frequency Counter with De bounce I O special function Table 6 5 Pulse Frequency Counter with De bounce Registers REGISTER ADDRESS DATA VALUES Input O Polarity Base 8 0 positive 1 negative Output Enable Base 9 0 not enable 1 enable Stay On Time Base 10 Default 100 or 10ms Stay Off Time Base 11 Default 100 or 10ms Alarm Configure Base 35 1 pulse 2 frequency Alarm High High Limit Base 36 High High Limit 2 words Alarm High Limit Base 38 High Limit 2 words Alarm Low Limit Base 40 Low Limit 2 words Alarm Low Low Limit Base 42 Low Low Limit 2 words Alarm HL Deadband
10. Complete product model number Product serial number Special repair instructions Purchase order number for out of warranty repairs KE om c 58 Name address and telephone number of person returning product 8B isoLynx SLX300 Software User Manual The product should be carefully packaged making sure the RMA number appears on the outside of the package and ship prepaid to Dataforth Corporation 3331 E Hemisphere Loop Tucson AZ 85706 USA The information provided herein is believed to be reliable however DATAFORTH assumes no responsibility for inaccuracies or omissions DATAFORTH assumes no responsibility for the use of this information and all use of such information shall be entirely at the user s own risk Application information is intended as suggestions for possible use of the products and not as explicit performance in a specific application Prices and specifications are subject to change without notice No patent rights or licenses to any of the circuits described herein are implied or granted to any third party DATAFORTH does not authorize or warrant any DATAFORTH product for use in life support devices and or systems 59 8B isoLynx SLX300 Software User Manual 8B isoLynx SLX300 Software User Manual MA1032 Rev A July 2010 O 2010 Dataforth Corporation All Rights Reserved
11. Default Set EA bit to 1 for alarm LSB analog channel O Write a 0 to clear latched mode alarm 1 1 EnableCJC 0 DisableCJC CJC 1 EnableCJC 0 DisableCJC Disable CJC dr d 8736 12 HHLL Lower Limit 8747 8768 12 HHLL Upper Deadband 8779 8784 12 HHLL Lower Deadband 8795 HHLL Alarm Status 8752 a Junction Compensation 5888 12 12 Channels Control Control 5899 A REG Type code 8B37J 11 default 8B37K 12 8B37R 13 8B37S 14 8B37T 15 8B47J 01 21 5904 8B47J 02 21 12 Channels Type 5915 8B47J 03 21 8B47J 12 21 8B47K 04 22 8B47K 05 22 8B47K 13 22 8B47K 14 22 8B47T 06 25 8B47T 07 25 12 Upper Range SH NAM Upper range temperature 0 Save all 1 Save ADC 2 Save DAC Save to EEPROM Command 8448 3 Save CJC 4 Save Alarm Reset Standard Default 8960 0 Standard Reset 255 Reset to Default Digital UO P Address Each address in this range corresponds to a single channel Valid values are 0 and 1 8 words Values written to input channels are Digital Channel Data 0 7 R W accepted but will not appear on output unless the channel state is changed to output A value written to a channel reserved as a timer output returns an error D d Indicates errors O AS 45 8B isoLynx SLX300 Software User Manual Each address in this range corresponds to the state of a single digital channel 8 words Digital Channel States Valid channel states are
12. Limit 1000 Upper Limit 2000 Lower Limit 3000 Both Limits H L Control Output Active 100 Active High 200 Active Low 300 Not Active H L Control Output Channel 00 DIO channel 0 01 DIO channel 1 02 DIO channel 2 03 DIO channel 3 04 DIO channel 4 05 DIO channel 5 06 DIO channel 6 07 DIO channel 7 08 Analog Output channel 0 09 Analog Output channel 1 10 Analog Output channel 2 11 Analog Output channel 3 Example 1 Set up an alarm on analog input channel 0 for latched mode lower limit output active high and output to analog output channel 0 Write to register address 8192 a data value of 20000 2000 100 8 22108 Alarm control codes for High High and Low Low Limit alarms are the same as those above although the resulting value is written to a separate set of registers HH LL Alarm Control HH LL Output Active HH LL Output Channel HH LL Output Active 100 Active High 200 Active Low 300 Not Active HH LL Output Channel 00 DIO channel 0 01 DIO channel 1 02 DIO channel 2 03 DIO channel 3 04 DIO channel 4 05 DIO channel 5 06 DIO channel 6 07 DIO channel 7 08 Analog Output channel 0 8B isoLynx SLX300 Software User Manual 09 Analog Output channel 1 10 Analog Output channel 2 11 Analog Output channel 3 Example 2 Add a High High Low Low alarm to Example 1 which is active low and has output set to DIO channel 6 Write to register address 8704 a data
13. Limit Base 44 Deadband 1 word Alarm HHLL Deadband Limit Base 45 Deadband 1 word Save Configuration to EEPROM Base 90 Wale any ee current 6 3 Waveform Measurement The following table identifies Modbus registers used to configure the Waveform Measurement l O special function Table 6 6 Waveform Measurement Registers REGISTER ADDRESS DATA VALUES Timebase Base 30 Timebase Input O Polarity Base 31 0 positive 1 negative Number of periods to measure Events to Measure Base 32 10M max Integers1 to 32768 Average Weight Base 34 Default 4 Alarm Configure Base 35 Tapuke am tregusncy S duly cycle Alarm High High Limit Base 36 High High Limit 2 words Alarm High Limit Base 38 High Limit 2 words Alarm Low Limit Base 40 Low Limit 2 words 23 8B isoLynx SLX300 Software User Manual Alarm Low Low Limit Base 42 Low Low Limit 2 words Alarm HL Deadband Limit Base 44 Deadband 1 word Alarm HHLL Deadband Limit Base 45 Deadband 1 word Write any value to save the current Save Configuration to EEPROM Base 90 configuration 6 4 Time Between Events The following table identifies Modbus registers used to configure the Time Between Events I O special function Table 6 7 Time Between Events Registers REGISTER ADDRESS DATA VALUES Timebase Base 16 Timebase Channel 0 Pol
14. OutputO Low Time Base 8 Default 100 Length of period in timebase Output1 Low Time Base 10 Default 100 Save Configuration to EEPROM Base 90 Write any value to save the eurent configuration 6 7 One Shot Pulse Generator The following table identifies Modbus registers used to configure the One Shot Pulse Generator I O special function Table 6 10 One Shot Pulse Generator Registers REGISTER ADDRESS DATA VALUES Timebase Base 3 Timebase Pulse Count Base 4 Number of pulses generated sen Number of pulses generated Pulse Count Limit Base 6 before disarming timer Output Polarity Base 8 0 positive 1 negative Gate Trigger Select Base 9 0 user 1 positive 2 negative Length of pulse in timebase Pulse Length Base 10 Default 100 Length of pre delay in timebase Pre delay Length Base 12 Default 100 Length of post delay in timebase Post delay Length Base 14 Default 100 Save Configuration to EEPROM Base 90 We any ES tg save he curent configuration 25 8B isoLynx SLX300 Software User Manual 7 0 Analog Input Scan Configuration The following scan parameters are configurable Table 7 1 Analog Input Scan Parameters SCAN PARAMETERS VALID SETTINGS DEFAULT SETTING Scan Mode Idle Continuous or User Defined Idle Scan List Any analog input channel 0 1 2 3 4 5 6 7 ID 0 11 or the end of list indicator 8 9 10 11 and 255 Scan Inte
15. Status 2 12 Timer arm attempted with no function selected 17 Pulse rate or frequency exceeds max Alarm Status Ea R Contains alarm status Pulse count 2 words 10M max Pulse Cuun 4 EUM Writing any value to either of these words resets the counter to zero Frequency of input signal 2 words Frequency 11kHz max w SCMD isolated modules 80kHz max w SCMD PT non isolated module 0x0000 positive default Input O Polarity R W 0x0001 negative 0x0000 not enabled default De bounce Output Enable R W 0x0001 enabled cleaned output appears on OutputO Length of time in ten thousandths of a second that the input pin must stay high low to count Stay On Time 10 R W as a valid pulse Default 100 or 10ms Length of time in ten thousandths of a second Default 100 or 10ms 12455 rema alarms for this function are Pulse Count 2 Frequency Ce EECHER Alarm HL Deadband ME High Low Deadband 1 word Alarm HHLL Deadband Sall Bd High High Low Low Deadband 1 word Timer Save Function Write any value to save the current Configuration configuration for this function 48 8B isoLynx SLX300 Software User Manual Counter Timer Function 3 Waveform Measurement Description Ades Aces Values 0x0000 disarmed disarm Timer Arm Disarm 1 R W 0x0001 armed arm 0 Timer OK 11 Invalid Channel Configuration Timer Status 2 12 Timer arm attempted with no function selected 17 Pulse rate or frequency exceeds max
16. and a data value of OxOFFF 5V corresponds to an input of 760 C Example 2 Data is written to an 8B39 01 current output module This module has a 0 to 5V input range and a 4 to 20mA output range A data value of 0x0000 0V corresponds to an output of 4mA and a data value of OxOFFF 5V corresponds to an output of 20mA Only 8B input modules with a unipolar O to 5V output can be used in the 8B isoLynx SLX300 system The system has over range clamps and protection but the use of a module with output range beyond this limit may damage the system after prolonged operation 2 2 4 Reading Analog Data Analog data can be read from analog input and analog output channels Reading data from an analog output channel simply returns the last value written How data is read from analog input channels depends on the selected scan mode The 8B isoLynx SLX300 supports two scan modes which are described below For further details see Section 8 0 Reading Analog Data 2 2 1 1 Continuous Scan Mode In this mode the system continuously scans all 12 analog input channels converting the installed 8B module output voltages to digital data values at a fixed scan rate of 6000 samples per second 1 sample every 160us The 12 analog input channels are sampled one at a time in sequential order Once all analog inputs have been sampled the scan restarts at the first analog input Since the scan rate is fixed and all analog input channels are scanned the rate
17. and cable wiring diagrams 3 1 Modbus Protocol The system is shipped pre configured for use with one of the following Modbus protocols The protocol choice is made when the system is ordered 3 1 1 Modbus RTU Modbus RTU is supported over RS 232 USB and RS 485 2 or 4 wire serial links Data rates up to 921 6kbps with even odd and no parity are supported 3 1 2 Modbus TCP Up to four simultaneous socket connections are supported If all available sockets are currently used new socket open requests will be denied In such cases a new socket can be opened only if one of the current sockets is closed by the client that opened the socket In addition to the four simultaneous socket connections each socket can process up to four simultaneous Modbus TCP transactions Trying to process more will result in a Server Busy Modbus exception response 3 1 3 Modbus Function Codes The 8B isoLynx SLX300 supports the following Modbus function codes commands e 3 Read Holding Registers e 4 Read Input Registers e 6 Write Single Register e 16 Write Multiple Registers e 23 Read Write Multiple Registers 3 1 4 Modbus Addresses The 8B isoLynx SLX300 makes no distinction between Modbus Input registers and Modbus Holding registers Read Input Registers will return the same data as Read Holding Registers as long as both commands use the same address and quantity Modbus addresses described in this manual are 0 based In other words
18. can be reset to zero in software and the edge to be counted is configurable as rising or falling Pulse count can be displayed as RPM if the user specifies pulses per revolution The frequency counter counts pulses per second from an external source Frequency limits are the same as those listed above 2 3 3 2 Pulse Frequency Counter with De bounce The Pulse Frequency Counter with De bounce function is the same as described above in Section 2 3 3 1 except that a timer is used to provide configurable stay on high and stay off low times avoiding false triggering from noisy signals Pulse polarity is also configurable This function provides the de bounced signal on the adjacent digital output It is typically used for signals up to several hundred Hertz 2 3 3 3 Waveform Measurement Several types of waveform measurement can be performed with this function Pulse width period and duty cycle have an upper limit of 10 000 000 counts and frequency input is 15kHz max e Single pulse width measurement Measures the duration of a pulse on a gated input using a known timebase To perform this measurement wait until the gate is closed when the gate opens counting of timebase source pulses begins When the gate closes counting stops and the counter is disarmed Capture registers are used for high precision Source pulses are internal with timebase selectable in multiples of 10 from 1ns to 1sec Pulse polarity is also selectable e Contin
19. data values are either 1 or 0 See Section 10 0 Digital Data and I O Special Functions for more details 2 3 1 Reading Digital Data Digital data can be read from digital input channels at any time The interpretation of the data depends on the specific SCMD module installed at that channel Digital data can also be read from digital output channels This action will return the last value written 2 3 2 Writing Digital Data Digital data can be written to digital output channels at any time The effect of writing a data value to a channel depends on the function of the specific SCMD module installed at that channel 2 3 3 Digital UO Special Functions The 8B isoLynx SLX300 has two independent 32 bit counter timers which are used to perform seven special functions Each timer is associated with two digital UO channels and will use one or both depending on the selected special function Unused channels can be used for regular digital I O The special functions are described in the following sections 8B isoLynx SLX300 Software User Manual 2 3 3 1 Pulse Frequency Counter The pulse counter can count up to 10 000 000 pulses from an external source Input frequency can be up to 11kHz with a standard SCMD isolated module inserted in the channel or up to 80kHz if the SCMD PT pass through module is used An optional hardware or software gate input can be used to enable or disable counting This requires a second digital I O channel Pulse count
20. e MA1029 SLX300 Configuration Software Tool User Manual e MA1030 SLX300 Quick Start Guide e MA1031 SLX300 Hardware User Manual e MA1033 SLX300 LabVIEW VI Examples User Manual The following documents are available from the Modbus Organization www modbus org e Modbus Application Protocol Specification V1 1a June 2004 e Modbus over Serial Line Specification amp Implementation Guide V1 0 November 2004 e Modbus Messaging on TCP IP Implementation Guide V1 0a June 2004 1 2 Document Conventions This document follows the following conventions e Hexadecimal numbers are preceded by the Ox suffix e g OXFAO2 e Binary numbers are preceded by b e g b1011 e fa given number is not preceded by a suffix it is a decimal value e g 123 8B isoLynx SLX300 Software User Manual 2 0 Device Operation 2 1 Device Configuration An 8B isoLynx SLX300 system must be configured before use Configuration is best described in two steps communication interface configuration and channel configuration The system ships with factory default communication parameter settings These parameters and their factory defaults are described in Section 3 0 8B isoLynx SLX300 Communication Interface Configuration If the factory default settings are appropriate communication interface configuration can be skipped Channel configuration cannot be skipped The analog channel may need to be configured for cold junction compensation CJC if a
21. should delay for 3 seconds to allow the 8B isoLynx SLX300 time to start up before attempting communication again The following table identifies the Modbus register addresses and data values used to perform firmware resets Reading a reset register has no effect and will return a data value of 0x0000 Table 13 4 Reset Registers REGISTER ADDRESS DATA VALUES 0 Standard Reset AIO Reset 8960 0x2300 255 Reset to Default 0 Standard Reset DIO Reset 32769 0x8001 255 Reset to Default 41 8B isoLynx SLX300 Software User Manual 14 0 Appendix A 8B isoLynx SLX300 Modbus Address Map Board Information Values EE NE Dataforth Corp isoLynx 8B Date Code Ho H D0123 Serial Number aa 81234567 89 Description Company Logo AIO Firmware Ax xx Lx xx Ex xx Communication Settings Address Device Type In 1 Serial 2 Ethernet 10 921600 9 460800 8 230400 7 115200 default 6 57600 Baud Rate 5 38400 4 19200 3 9600 2 4800 1 2400 DIO Firmware Ethernet Firmware a mw CTN 9 R W MSB 9 LSB 12 255 255 0 0 R W 42 8B isoLynx SLX300 Software User Manual Analog UO Description Lage Access J Ves ADC Continuous Scan Mode 0 4095 0x0000 0x0FFF 12 Channels Current Data i NE 0 OV A 5V 12 Channels Minimum Data 12 23 EE Write a 0 to reset 12 Channels Maximum Data 24 35 Qe 098 0x0000 0x0F FF Wri
22. to allow calculation of the cold junction compensation factors see Section 4 4 Cold Junction Compensation for details All standard product 8B thermocouple input modules 8B37x and 8B47x xx are supported 2 2 4 Alarms The 8B isoLynx SLX300 allows alarms to be enabled individually on any analog input channel Input samples are compared with pre configured high and low level alarm limits or high high and low low alarm limits and if the limits are exceeded an alarm condition occurs When an alarm condition is asserted the system will do the following 1 turn on the System Alarm LED 2 set appropriate bits in the channel s Alarm Status register and 3 if enabled set the corresponding alarm output to the pre configured analog or digital alarm output value No asynchronous communication with the host occurs as this violates the Modbus protocol Tracking and Latched alarm modes are supported on each input channel In Tracking Mode the system will de assert the alarm condition when the input returns within limits taking into account the deadband parameter When used with an alarm output this mode allows the user to implement a simple on off controller In Latched Mode the alarm condition remains asserted even if the input returns within limits It is cleared by an appropriate command sent from the host or upon a system reset 2 3 Digital Data Digital data is read from digital input channels and written to digital output channels Digital
23. value of 200 6 206 4 5 2 Alarm Limit Registers For alarm control and processing there are 8 different limit parameter registers for each of the 12 analog input channels These registers are upper limit lower limit high high limit low low limit upper deadband lower deadband high high deadband and low low deadband Table 4 8 Alarm Limit Registers REGISTER ADDRESS DATA VALUES Upper Limit Registers 8208 8219 0x2010 0x201B 0 4095 Default 4095 Lower Limit Registers 8224 8235 0x2020 0x202B 0 4095 Default 0 Upper Deadband Registers 8256 8267 0x2040 0x204B 0 4095 Default 0 Lower Deadband Registers 8272 8283 0x2050 0x205B 0 4095 Default 0 High High Limit Registers 8720 8731 0x2210 0x221B 0 4095 Default 4095 Low Low Limit Registers 8736 8747 0x2220 0x222B 0 4095 Default 0 High High Deadband Registers 8768 8779 0x2240 0x224B 0 4095 Default 0 Low Low Deadband Registers 8784 8795 0x2250 0x225B 0 4095 Default 0 4 5 3 Alarm Status Registers The high low alarm and high high low low alarm processing will set the appropriate bits of the Alarm Status Register There are two alarm status registers one for high low alarm and the other for high high low low alarm Writing O to the status register will clear all latched mode alarms Table 4 9 Alarm Status Registers REG
24. values output channels are set to on power up and firmware reset 19 8B isoLynx SLX300 Software User Manual 5 2 1 Digital Channel Default Output Registers The following table identifies the Modbus register addresses and data values used to configure digital output channel default output parameters Table 5 3 Digital Output Channel Default Output Registers REGISTER ADDRESS DATA VALUES DIO Default Output 32820 32827 0x8034 803B 0 or 1 5 3 Save Digital UO Setting to EEPROM The system provides a save I O setting to EEPROM function for channel states and default output To save the parameter setting write any value to Modbus register address 32890 The saved parameter will replace the default setting upon power cycle or firmware reset Table 5 4 Save Digital I O Setting to EEPROM Registers REGISTER ADDRESS DATA VALUES Save I O Setting to EEPROM 32890 0x807A Write any value 20 8B isoLynx SLX300 Software User Manual 6 0 Digital UO Special Function Configuration The DIO channels are grouped into two banks Channels 0 3 are Bank 0 and Channels 4 7 are Bank 1 Each of the two banks can run any one of seven special functions at any given time The system has two timers associated with these banks Timer1 controls Bank 0 functions and Timer 2 controls Bank 1 functions Each digital UO special function uses one or two specific DIO channels These chan
25. 000 Sample Rate Example For a 10k sample rate Interval Value 41780000 10000 4178 The maximum sample rate is 100k samples second This will decrease if additional signal processing is enabled Maximum Sample Rate Conditions 100kS s All input modules except 8B37 8B47 Averaging disabled Alarms disabled 60kS s All input modules except 8B37 8B47 Averaging enabled Alarms enabled 40kS s 8B37 8B47 input module Averaging disabled Alarms disabled 20kS s 8B37 8B47 input module Averaging enabled Alarms enabled It is possible for the user to specify a scan interval that is too fast for the system to realize In such a situation the scan will fail when the scan start is attempted Scan Buffer Size The scan buffer size defines the amount of memory used to store data from the scan list entries If the scan fills the buffer that is defined the scan will end immediately The maximum scan buffer size is 192k words and the minimum scan buffer size is 2 words Configure the scan buffer size by writing the register value to the appropriate address Buffer Size Register Value Buffer Size words 100 27 8B isoLynx SLX300 Software User Manual 7 2 1 User Defined Scan Parameter Registers The following table identifies the Modbus register addresses and data values used to configure user defined scan parameters Table 7 3 User Defined Scan Parameter Registers REGISTER ADDRESS DATA VALUES 12 Channel IDs 0 11
26. 100 to 760C Alarm Control 0 or 1 0 O disable 1 enable Alarm Upper Limit 0 4095 4095 Alarm Lower Limit 0 4095 0 Alarm Upper Deadband 0 4095 0 Alarm Lower Deadband 0 4095 0 Alarm HHLL Control 0 or 1 0 O disable 1 enable Alarm HHLL Upper Limit 0 4095 4095 Alarm HHLL Lower Limit 0 4095 0 Alarm HHLL Upper Deadband 0 4095 0 Alarm HHLL Lower Deadband 0 4095 0 PARAMETER CHANNELS VALID SETTINGS DEFAULT SETTING Analog DAC Data Output No need to be configured DAC Default Output 0 4095 O 0x00 Analog channel parameters are stored in non volatile memory and will persist across power cycles resets and brownouts They can be changed by writing the appropriate Modbus registers Analog channel parameters can be reset back to factory default values by writing the Reset Register with the appropriate value see Section 13 2 Firmware Resets 4 1 Analog ADC DAC Channel States e Input Input channels are enabled for Read operations An 8B input module must be installed in the corresponding channel and the system configured accordingly Input channels are 8B isoLynx SLX300 Software User Manual automatically included in the input conversion list if the system is in Continuous Scan Mode In User Defined Scan Mode input channels are available for inclusion in the user defined scan list e Output Output channels are enabled for Write operations An 8B output module must be installed in the co
27. 608 Data Value 0 4095 0 5V 1 stop scan 4096 loop back scan Multiple read write up to 10 data entries with one read write command To reset the read write pointer write a 0 to the scan control register at Modbus address 4608 Data Value 0 4095 0 5V 1 stop scan 4096 loop back scan Multiple read write up to 10 data entries with one read write command To reset the read write pointer write a 0 to the scan control register at Modbus address 4608 4432 4442 Channel 1 16k Memory SE Channel 2 16k Memory ers Channel 0 16k Memory Scan Control 4608 El PO FE m LI Alarm Status 8240 8704 12 HHLL Control 8715 ER 8720 12 HHLL Upper Limit 8731 44 1 65536ms Default 10ms 0 stop and reset read write pointer 1 run 0 4095 16 count Degrees C Used for CJC Alarm control code Default O Disable 0 4095 Default 4095 Default 0 Default 0 Default 0 Set channel bit to 1 for alarm LSB analog channel O Write a 0 to clear latched mode alarm HHLL alarm control code Default 0 Disable 0 4095 Default 4095 Data Value 0 4095 0 5V 1 stop scan 4480 4096 loop back scan Channel 3 16k Memory R W Multiple read write up to 10 data entries with 4430 one read write command To reset the read write pointer write a O to the scan control register at Modbus address 4608 8B isoLynx SLX300 Software User Manual Default Default
28. Alarm Status MER Contains alarm status Number of cycles measured 10M max Events Measured A FM Writing any value to this register resets it to zero Duty cycle fixed point 8 bit integer 8 bit fraction Duty Cycle Combined Use to read duty cycle with one Modbus query Provides fractional precision Time open in timebase units 2 words Time closed in timebase units 2 words Avg Open Time Pat d Average time open in timebase units 2 words Average time closed in timebase units Max time open in timebase units 2 words Max Open Time 20 R W Writing any value to this register resets it to zero Min time open in timebase units 2 words Min Open Time 22 R W Writing any value to this register resets it to high values Max time closed in timebase units 2 words 24 R W ESSEN Writing any value to this register resets it to zero Max Closed Time Min time closed in timebase units 2 words Writing any value to this register resets it to high values Min Closed Time Duty cycle integer portion O to 100 Duty Cycle integer Duty cycle GateOpenTime PeriodLength 49 8B isoLynx SLX300 Software User Manual Duty cycle 16 bit fractional portion The counter timer may change this value at any time To be associated properly with the Duty Cycle Fractional SS integer portion this register is latched when the integer portion is read and must be read by the next Modbus command second l millisecond Timebase 30 R W Jsmicr
29. Data Two hundred fifty six 256 16 bit words of memory are reserved for general purpose user data Users are free to make use of this memory as they see fit Any data value can be written and later retrieved by issuing standard Modbus register Read Write commands Eight locations are stored in non volatile memory and data values written to these locations persist across power cycles resets and brownouts 11 1 User Data Registers The following table identifies the Modbus register addresses used to read and write user data Table 11 1 User Data Registers REGISTER ADDRESS DATA VALUES User Data Registers 0x2400 0x24FF 0x0000 OxFFFF 38 8B isoLynx SLX300 Software User Manual 12 0 Device Information The following information can be obtained for the system board e Company Logo e Date Code e Serial Number e AIO Firmware Revision e DIO Firmware Revision e Ethernet Firmware Revision 12 1 Device Information Registers The following table identifies the Modbus register addresses used to read device information Table 12 1 Device Information Registers REGISTER ADDRESS DATA VALUES Company Logo 33300 33331 Date Code 33332 33336 Serial Number 33337 33347 MONDE AIO Firmware Revision 33348 33352 DIO Firmware Revision 33353 33357 Ethernet Firmware Revision 33358 33362 39 8B isoLynx SLX300 Software User Manual 13 0 Miscellaneous Funct
30. Ethernet Interface Realtek RTL8139 810x Fast Ethernet Card B 2 Throughput Descriptors 8B isoLynx SLX300 throughput can be described in several ways The following descriptors are useful when discussing throughput e Command Time Minimum time required to fully process a command This value includes both 8B isoLynx SLX300 command processing time and communication overhead See Table B 1 for 8B isoLynx SLX300 calculated and measured command times e Command Rate Maximum rate at which a command can be sent to an 8B isoLynx SLX300 system expressed in commands per second Hz This value is the inverse of the Command Time See Table B 2 for 8B isoLynx SLX300 calculated and measured command rates e Throughput The maximum number of channel reads or writes per second Hz that can be achieved using a multiple channel command at its Command Rate This value is dependent on the number of channels processed by the command and is calculated by multiplying the Command Rate by the number of channels processed by the command See Table B 3 for 8B isoLynx SLX300 calculated and measured throughput 54 8B isoLynx SLX300 Software User Manual B 3 Command Times TABLE B 1 COMMAND TIMES ms CALCULATED MEASURED 3 0 3 0 Read Digital Data 2 0 Write Digital Data 2 0 Modbus RTU USB Read Analog Data Write Analog Data Read Digital Data Write Digital Data Modbus TCP Read A
31. Hardware Gate Status Base 12 R 1 open 2 closed 10 2 2 Pulse Frequency Counter with De bounce Function To use the pulse frequency counter with de bounce function write a 2 to the base address of one of the timers and configure the counters as described in Section 6 2 Pulse Frequency Counter with De bounce To start the counter write a 1 to the Arm Disarm register and to stop the counter write a O to the Arm Disarm register The following table identifies the Modbus addresses access and data values used to operate the counters Table 10 3 Pulse Frequency Counter with De bounce Registers REGISTER ADDRESS ACCESS DATA VALUES Arm Disarm Base 1 R W 0 Disarm 1 Arm Status Base 2 R Status Alarm Status Base 3 R Alarm status Pulse count Pulse Count Base 4 5 R W 10M max Write any value to reset counter Frequency count 11kHz max w SCMD isolated Frequency Count Base 6 7 R modules 80kHz max w SCMD PT non isolated module 10 2 3 Waveform Measurement Function To use the waveform measurement function write a 3 to the base address of one of the timers and configure the timer as described in Section 6 3 Waveform Measurement 34 8B isoLynx SLX300 Software User Manual To start the measurement write a 1 to the Arm Disarm register and to stop the measurement write a O to the Arm Disarm register The following table identifies the Modbus addresses access and data val
32. ISTER ADDRESS DATA VALUES Set alarm bit by alarm processing Status Registers Write O to clear all latched alarms 8240 0x2030 High High Low Low Status Registers Set alarm bit by alarm processing 8752 0x2230 Write O to clear all latched alarms 4 6 Save Analog Channel Parameters to EEPROM Analog channel parameters can be saved to EEPROM by writing a data value of 0 4 to register address 8448 0 save all parameters 1 save ADC parameters 2 save DAC parameters 3 save CJC parameters and 4 save alarm parameters The saved parameters will take effect immediately and will replace the default settings upon power cycle or firmware reset 17 8B isoLynx SLX300 Software User Manual Table 4 10 Save Analog Channel Parameters to EEPROM Registers REGISTER ADDRESS DATA VALUES Save to EEPROM 8448 0x2100 0 All 12 ADC 2 DAC 3 CJC 4 Alarm 8B isoLynx SLX300 Software User Manual 5 0 Digital UO Channel Configuration Digital UO channels have the following configurable parameters Table 5 1 Configurable Digital Channel Parameters DIGITAL CHANNEL PARAMETER VALID SETTINGS DEFAULT SETTING Channel State Vacant Input Output Alarm Vacant Default Output Output Channels Only 9 97 y Digital UO channel parameters are stored in non volatile memory on the 8B isoLynx SLX300 and can be configured by writing the appropriate Modbus re
33. K Timer Status 2 Timer Save Function Configuration 12 Timer arm attempted with no function selected 16 Invalid frequency exceeds max 0 1 second 1 1 millisecond 2 1 microsecond 3 1 nanosecond i BEEN of pulses generated 2 words Timer Pulse Count events 10M max measured register an uen any value to this register resets it to 0 Number of pulses to generate before disarming Timer Pulse Count Limit timer 2 words events to measure register 10M max Zero default value means no limit 0x0000 positive Timer Output Pulse Polarity 0x0001 negative 0x0000 user command Timer Gate trigger select R W 0x0001 hardware positive edge triggered 0x0002 hardware negative edge triggered Length of pulse using timebase 2 words Timer Pulse Length 10 R W Default 100 Minimum value 20 Timer Pre delay Length Length of ie delay using timebase 2 words Default Timer Post delay Length Length of pon delay using timebase 2 words Default Generate pulse Timer Software Trigger 20 W A pulse is triggered by a Modbus write to this address Timer Save Function w Write any value to save the current Configuration configuration for this function 53 11 Invalid Channel Configuration Timer Timebase 8B isoLynx SLX300 Software User Manual 15 0 Appendix B 8B isoLynx SLX300 Throughput This section outlines 8B isoLynx SLX300 calculated throughput values based on command processing times and compares them against act
34. Method Contact Information E Mail Technical Support techinfo dataforth com Website www dataforth com Phone 520 741 1404 and toll free 800 444 7644 Fax 520 741 0762 Mail Dataforth Corporation 3331 E Hemisphere Loop Tucson AZ 85706 Errata Sheets Refer to the Technical Support area of Dataforth s website www dataforth com for any errata information on this product vi 8B isoLynx SLX300 Software User Manual 1 0 Introduction The 8B isoLynx SLX300 is a fast intelligent fully isolated data acquisition system providing superior reliability accuracy and isolation for a wide range of rugged industrial applications The flexible modular design combines eight SCMD digital UO channels four 8B analog output channels and twelve 8B analog input channels into one single board The 8B isoLynx implements the industry standard Modbus RTU and TCP protocols thereby enabling communication with a wide variety of existing third party software drivers and HMI SCADA packages Dataforth offers a Windows based free Configuration Software Tool which makes it easy to make a few basic system connections and quickly start taking measurements The 8B isoLynx is factory configured to communicate to a host PC using RS 232 RS 485 or USB serial links or Ethernet as its physical layer Up to 16 systems can be multi dropped on the RS 485 serial link 1 1 Related Documents The following documents are available from Dataforth Corporation
35. SEQUENTIAL DAMAGES OF ANY NATURE RESULTING FROM BUYER S NONCOMPLIANCE IN ANY FORM WITH ALL NECESSARY OR MANDATORY APPLICABLE LAWS REGULATIONS PROCEDURES GOVERNMENT POLICIES OR REQUIREMENTS RELATED TO THE USE SALE OR IMPORTATION OF PRODUCTS 3 IN NO EVENT WILL THE COLLECTIVE LIABILITY OF DATAFORTH AND ITS SUPPLIERS LICENSORS SERVICE PROVIDERS EMPLOYEES AGENTS OFFICERS AND DIRECTORS TO ANY PARTY REGARDLESS OF THE FORM OF ACTION WHETHER BASED UPON WARRANTY CONTRACT TORT OR OTHERWISE EXCEED THE GREATER OF EITHER US 1000 00 ONE THOUSAND DOLLARS USA CURRENCY OR THE AMOUNT PAID TO DATAFORTH FOR THE APPLICABLE PRODUCT OR SERVICE OUT OF WHICH LIABILITY AROSE 57 8B isoLynx SLX300 Software User Manual 4 DATAFORTH S LIABILITY ARISING OUT OF THE PRODUCTION SALE OR SUPPLY OF PRODUCTS OR THEIR USE OR DISPOSITION WHETHER BASED UPON WARRANTY CONTRACT TORT OR OTHERWISE SHALL NOT EXCEED THE GREATER OF EITHER US 1000 00 ONE THOUSAND DOLLARS U S A CURRENCY OR THE ACTUAL PURCHASE PRICE PAID BY BUYER FOR DATAFORTH S PRODUCTS DATAFORTH S LIABILITY FOR ANY CLAIM OF ANY KIND SHALL IN NO CASE EXCEED THE OBLIGATION OR LIABILITY SPECIFIED IN THIS WARRANTY d Technical Assistance Dataforth s Warranty as hereinabove set forth shall not be enlarged diminished or affected by and no obligation or liability shall arise or grow out of Dataforth s rendering of technical advice facilities or service in connection with bu
36. Vacant 0x0000 Default Input 0x0001 Output 0x0002 Alarm 0x0003 Each address in this range corresponds to the default output for a single digital output channel 8 words Digital Panel Default Outputs The default output is the value a digital output channel is set to upon power cycle or reset Factory default 0 A write to this register will store the current settings of the digital I O channels i e input or output and their default settings in EEPROM These values are read upon power cycle or reset Store Digital Channel Settings The lower 8 bits of this word control all 8 Digital Channel Data channels Values written to input channels Combined vacant channels or channels configured as timer outputs are ignored Reset Register Values Sean Jm ze Reset Standard Default 32769 0 Standard Reset 255 Reset to Default Channels 0 to 3 Counter 0 Special Function Base Address 32900 Channels 4 to 7 Counter 1 Special Function Base Address 33000 Counter Timer Function 1 Pulse Frequency Counter Timer Function E R W 0x0001 pulse counter 0x0000 disarmed disarm Timer Arm Disarm 1 R W 0x0001 armed arm 0 Timer OK 11 Invalid Channel Configuration Timer Status 12 Timer arm attempted with no function selected 17 Pulse rate or frequency exceeds max 46 8B isoLynx SLX300 Software User Manual Alarm Status EE Contains alarm status Pulse count 2 words Pulse Count 10M max Writin
37. Write Analog Data Read Digital Data Write Digital Data Modbus RTU USB Read Analog Data Write Analog Data Read Digital Data Write Digital Data Modbus TCP Read Analog Data Write Analog Data Read Digital Data Write Digital Data 1 Read Single Registers and Read Multiple Registers use Modbus Command 0x03 2 Write Single Register uses Modbus command 0x06 Write Multiple Registers uses Modbus command 0x10 56 8B isoLynx SLX300 Software User Manual DATAFORTH WARRANTY Applying to Products Sold by Dataforth Corporation a General Dataforth Corporation Dataforth warrants that its products furnished under this Agreement will at the time of delivery be free from defects in material and workmanship and will conform to Dataforth s applicable specifications or if appropriate to buyers specifications accepted in writing by Dataforth DATAFORTH S OBLIGATION OR LIABILITY TO BUYER FOR PRODUCTS WHICH DO NOT CONFORM TO THE ABOVE STATED WARRANTY SHALL BE LIMITED TO DATAFORTH AT DATAFORTH S SOLE DISCRETION EITHER REPAIRING REPLACING OR REFUNDING THE PURCHASE PRICE OF THE DEFECTIVE PRODUCT S PROVIDED THAT WRITTEN NOTICE OF SAID DEFECT IS RECEIVED BY DATAFORTH WITHIN THE TIME PERIODS SET FORTH BELOW i for all software products including licensed programs thirty 30 days from date of initial delivery ii for all hardware
38. Zei 8B SLX300 Data Acquisition System Software User Manual gt DATAFORTH 8B isoLynx SLX300 Software User Manual 8B isoLynx SLX300 Software User Manual MA1032 Rev A July 2010 O 2010 Dataforth Corporation All Rights Reserved The information in this manual has been checked carefully and is believed to be accurate however Dataforth assumes no responsibility for possible inaccuracies or omissions Specifications are subject to change without notice The information tables diagrams and photographs contained herein are the property of Dataforth Corporation No part of this manual may be reproduced or distributed by any means electronic mechanical or otherwise for any purpose other than the purchaser s personal use without the express written consent of Dataforth Corporation isoLynx is a registered trademark of Dataforth Corporation Windows is a registered trademark of Microsoft Corporation LabVIEW is a trademark of National Instruments Corporation Modbus is a registered trademark of the Modbus Organization Inc 1 0 2 0 3 0 4 0 8B isoLynx SLX300 Software User Manual Table of Contents deel Ted EE nike teeth 1 1 4 Related Documoents nce ee cx cep hed ctas ci La M cea cR LER Dag teen cR RE 1 12 Document Conv htlOns etude e he etia et be eie ti e 1 Device OPM mE 2 2 1 Device Configurations EE 2 2 2 Analog Dala EE 2 2 2 1 Reading Analog HEET 3 2 2 2 Writing Analog Dita
39. annel s data is the most recent The scan could be processing any one of the current analog inputs when the request is received therefore any one of the analog data values might be the most recent 8B isoLynx SLX300 Software User Manual 2 2 1 2 User Defined Scan Mode Burst Scan Mode In User Defined Scan Mode Burst Scan Mode analog input channels are not continuously scanned Instead the scan is started and stopped at the direction of the host application Analog conversion results are stored in a 192k word FIFO buffer and can be read either after the scan completes or as data becomes available The maximum sample rate is 100k samples second This will decrease if additional signal processing is enabled Reference Section 7 2 User Defined Scan Parameters for further details Before a User Defined Scan can be started a scan list must be configured This is a list containing up to 48 entries of the 12 analog input channels Each channel can be listed more than once and channels can be listed in any order A scan interval of as little as10us and scan buffer memory size up to 192k words can also be configured this defines how often the entries in the scan list are scanned and how much of the buffer s memory is used When the defined buffer memory becomes full the scan is stopped In addition a scan count can be read The scan counter indicates how many samples are in the scan buffer memory A scan is started with a Modbus Write Register
40. arity Base 17 0 positive 1 negative Channel 1 Polarity Base 18 0 positive 1 negative Average Weight Base 19 cu des Events to Measure Base 20 Number of intervals to measure Alarm Configure Base 35 tepus ee veda Seide Alarm High High Limit Base 4 36 High High Limit 2 words Alarm High Limit Base 38 High Limit 2 words Alarm Low Limit Base 40 Low Limit 2 words Alarm Low Low Limit Base 42 Low Low Limit 2 words Alarm HL Deadband Limit Base 44 Deadband 1 word Alarm HHLL Deadband Limit Base 45 Deadband 1 word Save Configuration to EEPROM Base 90 WAS E SES 6 5 Frequency Generator The following table identifies Modbus registers used to configure the Frequency Generator l O special function Table 6 8 Frequency Generator Registers REGISTER ADDRESS DATA VALUES Desired frequency in Hz Desired Frequency Base 4 Default 10Hz 100kHz max 24 8B isoLynx SLX300 Software User Manual Save Configuration to EEPROM Base 90 Write any value to save the current configuration 6 6 PWM Generator The following table identifies Modbus registers used to configure the PWM Generator I O special function Table 6 9 PWM Generator Registers REGISTER ADDRESS DATA VALUES Timebase Base 3 Timebase Output1 Enable Base 4 0 disable 1 enable Length of period in timebase PWM Period Base 6 2 words Length of period in timebase
41. at which a given input channel is sampled is dependent on the number of analog inputs The formula for the single channel sample rate is given below Sample Rate 1 166 7us x 12 500 samples second Analog data values are stored in a circular SRAM buffer Only one conversion result per channel is stored at a time New conversion results overwrite a channel s previous conversion result The most recent conversion results may be retrieved at any time with a Modbus Read Registers command In addition a running average is calculated for each analog input every time a channel is sampled The weight used in the running average calculation is configurable on a per channel basis see Section 4 0 Analog ADC DAC Channel Configuration Running average results are stored in a circular SRAM buffer and can be accessed with a Modbus Read Registers command The running average formula is Average Average Sampled Value Average Average Weight Maximum and minimum values are also maintained for each analog input and stored in circular SRAM buffers The maximum and minimum values can be read at any time with a Modbus Read Registers command to the appropriate address The average value maximum value or minimum value can be reset at any time with a Modbus Write Registers command NOTE Due to the circular buffer architecture of Continuous Scan Mode if data from a contiguous group of analog input channels is read it cannot be determined which ch
42. ble identifies the Modbus register addresses used to read continuous scan analog data Registers that correspond to analog input channels will return current analog data when read if the scan mode is continuous If the scan mode is user defined registers that correspond to analog input ADC channels will return 0x0000 Registers that correspond to analog output DAC channels will return the last value written when read regardless of the configured scan mode To reset minimum maximum and average write a O to the relevant register Table 8 1 Continuous Scan Data Registers REGISTER ADDRESS DATA VALUES 0 4095 0x0000 Ox0FFF Recent Counts 0 11 0x0000 0x000B 0 0V 4095 5V Minimum Counts 12 23 0x000C 0x0017 ROS 0x0000 0x0F EF Write O to reset 0 4095 0x0000 0x0FFF Maximum Counts 24 35 0x0018 0x0023 Write O to reset 0 4095 0x0000 0x0FFF Average Counts 36 47 0x0024 0x0029 Write O to reset 8 2 User Defined Scan Data Before reading data from a user defined scan scan parameters must be set up as described in Section 7 2 User Defined Scan Parameters After a scan is started the Scan Counter Register can be polled for scan completion Data can be read from the Scan Data Register when the scan completes or as data becomes available 29 8B isoLynx SLX300 Software User Manual 8 2 1 Starting a User Defined Scan To start a user defined scan write a 2 to the Sca
43. channels are set to the configured default value 4 3 1 Analog Channel Default Output Registers The following table identifies the Modbus register addresses and data values used to configure analog default output parameters Table 4 3 Analog DAC Channel Default Output Registers REGISTER ADDRESS DATA VALUES Integers 0 to 4095 Default 0 0x00 Channel Default Output 4368 4371 0x1110 0x1113 13 8B isoLynx SLX300 Software User Manual 4 4 Cold Junction Compensation CJC The CJC registers must be configured when an 8B37x or 8B47x xx thermocouple input module is installed in an analog input channel CJC is configurable on a per channel basis There are 4x12 CJC parameter registers including 12 channel control registers 12 thermocouple type registers 12 lower temperature range registers and 12 upper temperature range registers 4 4 1 CJC Channel Control Registers The following table identifies the Modbus register addresses and data values used to configure CJC control parameters The CJC calculation starts when the scan mode is initiated Table 4 4 CJC Channel Control Registers REGISTER ADDRESS DATA VALUES 12 Control Registers 5888 5899 0x1700 0x170B he gin s DU 4 4 2 CJC Type Registers The following table identifies the Modbus register addresses and data values used to configure CJC type parameters The CJC type register must be configured to match the type of
44. d or installed the bit reads as a O 3 5 Modbus RTU Parameters Baud rate and parity are configurable When using the SLX300 20x with RS 485 serial link 4 wire half duplex or 2 wire half duplex may be selected 8B isoLynx SLX300 Software User Manual 3 5 1 Modbus RTU Parameter Registers The following table describes Modbus addresses and data values used to configure Modbus RTU parameters If a value other than one specified below is written to a register that value is ignored and the parameter remains unchanged Table 3 2 Modbus RTU Parameter Registers REGISTER ADDRESS DATA VALUES RS 485 2 or 4 Wire 33403 0x827B 0 2 wire 1 4 wire default RS 485 Enable termination resistors 33404 0x827C 0 Disable default 1 Enable Baud Rate 33401 0x8279 1 2400 2 4800 3 9600 4 19200 5 38400 6 57600 7 115200 default 8 230400 9 460800 10 921600 Parity 33402 0x827A 0 None 1 Odd 2 Even default 3 6 Modbus TCP Parameters The following Modbus TCP parameters are configurable Factory default settings must be used for initial configuration Table 3 3 Configurable Modbus TCP Parameters PARAMETER VALID SETTINGS DEFAULT SETTING IP Address Any valid IP Address 192 168 128 100 Subnet Mask Any valid Subnet Mask 255 255 0 0 IP Address This parameter specifies the device IP addre
45. ensation CJ 14 4 4 1 CJC Channel Control Registers ssssssssssees esent nennen 14 4 4 2 CIC Type Registers ee otra E a tee See i Rea 14 8B isoLynx SLX300 Software User Manual 4 43 CJC Lower and Upper Range Heglsiers nan rn nnnn canina 14 4 5 AIAN Sis TE E EE E Peek eee cene s ec kr cer nete deer va oue talla eg 15 4 5 1 Alarm Channel Control Heglsterg sess enne nennen ener 15 4 5 2 Alarm Limit Registers ean ainos ieia iriga dia Dadia Ka AAi E a A A E aA 17 4 5 3 Alarm Status e ET 17 4 6 Save Analog Channel Parameters to EEPROM ssssssssssseseenennenen enne 17 5 0 Digital I O Channel Configuration entente cnn rn 19 5 1 Digital VO Chamel States ri E tae 19 5 1 1 Digital I O Channel State Registers ssssssssssssseeeeeeeneeen nene 19 5 2 Digital Output Default Outputs nennen nennen rnnt enne 19 5 2 1 Digital Channel Default Output Registers oooooconnccinncccncccnocccnnncnnanan cnc cc n anna rana 20 5 3 Save Digital I O Setting to EEPROM eeseecseeceeeeceee esses conc n corn cnn nn cnn nc enne nnn 20 6 0 Digital I O Special Function Configuration esses 21 6 1 Pulse Frequency Counter ente enne nnns entente nennt nnns 22 6 2 Pulse Frequency Counter with De bounce nennen 23 6 3 Waveform Measurement nennen sinn entente ssi nr ns en teneis nnns n tenis 23 6 4 Time Between Events dresden nt REM UE 24 6 5 Frequency Generatot au aaa ta EN 24
46. g any value to either of these words resets the counter to zero Frequency of input signal 2 words Frequency 11kHz max w SCMD isolated modules 80kHz max w SCMD PT non isolated module Revolutions per minute Ticks per revolution for RPM measurement 0x0000 positive rising inpute Polagty 0x0001 negative falling 0x0000 user command Timer Gate 11 R W 0x0001 hardware positive polarity 0x0002 hardware negative polarity 0x0000 hardware gate not selected 0x0001 hardware gate currently open 0x0002 hardware gate currently closed Hardware Gate Status This register shows what the current gate status is and can be used to check whether polarity is correct Timer Rollover future Timer Rollover future 13 R Pulse count 2woras Pulse count 2 words eee E alarms for this function are Pulse Count 2 Frequency 3 RPM O E a Pamuwum RW CCC Alarm HL Deadband ow mu High Low Deadband 1 word Alarm HHLL Deadband HHLL Deadband A L S O peneana High High High High Low Low Deadband 1 word Low Deadband 1 word Timer Save Function Write any value to save the current Configuration configuration for this function 47 8B isoLynx SLX300 Software User Manual Counter Timer Function 2 Pulse Frequency Counter with De bounce Description Address Aces Values 0x0000 disarmed disarm Timer Arm Disarm 1 R W 0x0001 armed arm 0 Timer OK 11 Invalid Channel Configuration Timer
47. gisters The above parameters persist across power cycles resets and brownouts Digital l O channel parameters can be reset back to factory default values by writing the Reset Register 5 1 Digital I O Channel States Digital I O channels must be in one of the following states e Vacant Vacant channels are not enabled for read or write operations This is the factory default state for all channels e Input Input channels are enabled for read operations An SCMD input module must be physically installed in the corresponding channel e Output Output channels are enabled for write operations An SCMD output module must be physically installed in the corresponding channel e Alarm Alarm channels are enabled for alarm output An SCMD output module must be physically installed in the corresponding channel 5 1 1 Digital UO Channel State Registers The following table identifies the Modbus register addresses and data values used to configure the digital UO channel states If a value other than one specified below is written to one of the following registers the value will be interpreted as vacant by 8B isoLynx SLX300 firmware Table 5 2 Digital Channel State Registers REGISTER ADDRESS DATA VALUES 8 DIO States 32810 32817 0x802A 0x8031 Cer E gg E 5 2 Digital Output Default Outputs The default output parameter is configurable for each digital UO channel configured as an output Default outputs are the initial
48. ill also reset all channel buffer memory read and write pointers to 0 32 8B isoLynx SLX300 Software User Manual 10 0 Digital Data and I O Special Functions In order to read or write digital data an SCMD input or output module must be installed in one or more of the digital I O channels The 8B isoLynx SLX300 has seven digital I O special functions Pulse Frequency Counter Pulse Frequency Counter with De bounce Waveform Measurement Time Between Events Frequency Generator PWM Generator and One Shot Pulse Generator 10 1 Digital Data Read and Write Digital input and output channels can be read by issuing the Modbus Read command to the appropriate addresses Reading a digital input and or output returns the current digital state of that channel Reading a vacant channel returns a 1 Digital output channels can be written by issuing the Modbus Write command to the appropriate addresses Writing a digital input or vacant channel will have no effect The following table identifies the Modbus addresses and data values used to read data from and write data to digital data channel registers Table 10 1 Digital Data Channel Registers REGISTER ADDRESS DATA VALUES 8 DIO Data 32800 32807 0x8020 0x8027 0 or 1 DIO Data Combined 32829 0x803D 0x0000 Ox00FF 10 2 Digital UO Special Functions There are two 32 bit timers Each timer is independent of the other and can perform seven special functi
49. ion and Control 13 1 Temperature Sensor The 8B isoLynx SLX300 has one onboard temperature sensor which is used for Cold Junction Compensation when 8B37x or 8B47x xx thermocouple modules are installed This sensor can be read by issuing the Modbus Read command to the appropriate address 13 1 1 Temperature Sensor Register The following table identifies the Modbus register address used to read the onboard temperature sensor information Table 13 1 Temperature Sensor Register REGISTER ADDRESS DATA VALUES Temperature 5633 0x1601 0 4095 16 count Degrees C 13 2 Firmware Resets Two types of firmware reset are supported on the 8B isoLynx SLX300 Standard Reset This reset is used to bring the system back to a known user defined state It resets analog and digital output channels to configured default output values resets analog input average max and min values resets the scan sample and mode registers the CJC control register and the alarm control and status register Communications parameters are not affected Reset to Default This reset is used to bring the system back to the settings established at the factory during manufacture It performs the standard reset actions plus resets most non volatile parameters to default settings Communication parameters are not affected by a reset to default Refer to the tables below for further details Table 13 2 Analog UO Parameters Affected by Reset Commands
50. ion for this function Counter Timer Function 5 Frequency Generator Timer Function 0x0005 frequency generation 0x0000 disarmed disarm 0x0001 armed arm 0 Timer OK 11 Invalid Channel Configuration Timer Status 12 Timer arm attempted with no function selected 16 Invalid frequency exceeds max A Desired frequency in Hz 2 words Timer Desired Frequency 100kHz max Timer Save Function W Write any value to save the current Configuration configuration for this function Counter Timer Function 6 PWM Generator Timer Function Timer Arm Disarm Timer Arm Disarm 0 Timer OK 11 Invalid Channel Configuration Timer Status 12 Timer arm attempted with no function selected 16 Invalid frequency exceeds max 0 1 second 1 1 millisecond 2 2 1 microsecond 3 1 nanosecond 0x0000 Output 1 disabled default value 0x0001 Output 1 enabled Timer Timebase Timer PWM Output 1 Enable Timer PWM Period Length of period in timebase units 2 words Length of low time on output 0 in timebase units Default 100 Timer PWM Output 0 Low Time 52 8B isoLynx SLX300 Software User Manual Length of low time on output 1 in timebase m PWM Output 1 Low 10 R W unite Default 100 W Write any value to save the current configuration for this function Counter Timer Function 7 One Shot Pulse Generator 0x0007 triggered pulse generation 0x0000 disarmed disarm Timer Arm Disarm R W 0x0001 armed arm 0 Timer O
51. m 0 1 second 1 1 millisecond 2 1 microsecond 3 1 nanosecond 0x0000 positive edge 0x0001 negative edge Channel 0 Polarity Any non zero value written to this register selects negative edge Zero selects positive edge default 0x0000 positive edge EUWI 0x0001 negative edge Channel Flan 18 i Any non zero value written to this register selects negative edge Zero selects positive edge default Number of samples to include in moving average l Average is calculated as prior moving average Moving Average Weight 19 BW Moving average weight is the inverse weight of each new sample Default value 4 Number of intervals to measure 2 words Default 0 Evenis 10 Measure 20 FAN 0 continue measuring until a Modbus command is sent to stop Valid alarms for this function are Alarm Configuration 35 R W 1 Events Measured 2 Time Between Events Alarm High High Limit 36 RW gt High imit 2 words High High limit 2 words Alarm High Limit ssf Rw O High limit 2 words Alarm Low Limit 40 f w Low limit 2 words Alarm Low Low Limit Low Low limit 2 words Average interval length in timebase units 2 words TBE Average Can only be cleared by disarming and rearming the timer 51 8B isoLynx SLX300 Software User Manual Alarm HL Deadband High Low Deadband 1 word Alarm HHLL Deadband R W High High Low Low Deadband 1 word Timer Save Function W Write any value to save the current Configuration configurat
52. n 8B thermocouple input module is used or for alarm if the alarm function is used etc At a minimum digital I O channel states must be configured to enable read or write access to them Each digital l O channel can be configured in one of several states vacant input output or alarm The factory default state for all digital l O channels is vacant An analog channel refers to the physical slot on the system board where an 8B module can be installed There are a total of 12 analog input and 4 analog output channels on the 8B isoLynx SLX300 The 12 analog ADC channels are fixed as inputs and the 4 analog DAC channels are fixed as outputs they do not need to be configured as inputs or outputs A digital channel refers to the physical slot on the system board where an SCMD module can be installed There are a total of 8 digital channels on the 8B isoLynx SLX300 A digital channel should be configured as an input if an SCMD digital input module is installed at that location Doing so enables read access to the channel Similarly a digital channel should be configured as an output if an SCMD digital output module is installed at that location to enable write access to the channel Other channel parameters can be configured such as input average weights for analog channels analog and digital default output values and digital I O special function s but it is not absolutely necessary to do so Analog channel parameters and their configuration are de
53. n Mode Register when in idle mode If the scan parameters described in Section 7 2 User Defined Scan Parameters were configured correctly the scan will start The SCN LED will turn on to indicate the user defined scan is in progress and will stay on until the scan completes 8 2 2 Polling the Scan Count Register Once the command to start the scan is issued the Scan Count Register can be periodically polled to determine if the scan is still in progress and the number of data words currently available in the scan data buffer A scan can be aborted by writing a O to the Scan Mode Register 8 2 3 Reading Data from the Scan Data Register The Scan Data Buffer is a 192k FIFO first in first out buffer used to store conversion results from a user defined scan Conversion results are inserted into the buffer by the scan process as entries in the scan list are converted A user defined scan will stop if the scan data buffer becomes full The Scan Data Register is the host application s interface to the scan data buffer Reads from this register extract data from the scan data buffer Multiple words up to 125 can be read with a single command provided they are available see Section 8 2 2 Polling the Scan Count Register The Scan Data Register can be read any time that data is available either while a scan is in progress or after one is complete If more words than are available are read from the scan data buffer O will be returned for the data value
54. nalog Data Write Analog Data Read Digital Data Write Digital Data 1 Read Single Registers and Read Multiple Registers use Modbus Command 0x03 2 Write Single Register uses Modbus command 0x06 Write Multiple Registers uses Modbus command 0x10 E Number of Channels Processed Number of Channels Processed 1 4 8 1 4 8 12 Modbus RTU RS 232 Read Analog Data 1 2 i 3 0 3 5 Write Analog Data 1 3 3 0 i B 4 Command Rates TABLE B 2 COMMAND RATES H2 CALCULATED MEASURED Number of Channels Processed Number of Channels Processed 1 4 8 12 1 4 8 12 Modbus RTU RS 232 Read Analog Data 625 286 Write Analog Data Read Digital Data Write Digital Data Modbus RTU USB Read Analog Data Write Analog Data Read Digital Data Write Digital Data 55 8B isoLynx SLX300 Software User Manual Modbus TCP Read Analog Data Write Analog Data Read Digital Data Write Digital Data 1 Read Single Registers and Read Multiple Registers use Modbus Command 0x03 2 Write Single Register uses Modbus command 0x06 Write Multiple Registers uses Modbus command 0x10 B 5 Throughput TABLE B 3 THROUGHPUT Ch s CALCULATED MEASURED Number of Channels Processed Number of Channels Processed 1 4 8 12 1 4 8 12 Modbus RTU RS 232 Read Analog Data 7500 3429
55. nels must be configured as input or output before a special function can be used The following tables identify the digital l O channel s associated with each of the seven special functions and the state that needs to be configured for each timer Table 6 1 Bank 0 Timer1 Special Function Digital UO Channel SPECIAL FUNCTION DIGITAL UO CHANNEL STATE FUNCTION UO Channel 0 Input Main Signal Pulse Prequeney Counter I O Channel 1 Input Main Trigger Pulse Frequency Counter with I O Channel 0 Input Main Signal De bounce I O Channel 2 Output De bounced Version of Input Signal Waveform Measurement UO Channel 0 Input Main Signal I O Channel 0 Input Event 1 Trigger NME Pons UO Channel 1 Input Event 2 Frequency Generator UO Channel 2 Output Output Signal UO Channel 2 Output Output Signal 1 PaM Generator UO Channel 3 Output Output Signal 2 UO Channel 2 Output One Shot Signal Pie Shor Pulse sn sralor UO Channel 1 Input Trigger Signal Table 6 2 Bank 1 Timer2 Special Function Digital UO Channel SPECIAL FUNCTION DIGITAL UO CHANNEL STATE FUNCTION UO Channel 4 Input Main Signal Pulse Prequency Counter I O Channel 5 Input Main Trigger Pulse Frequency Counter with UO Channel 4 Input Main Signal De bounce I O Channel 6 Output De bounced Version of Input Signal Waveform Measurement UO Channel 4 Input Main Signal UO Channel 4 Input Eve
56. nstead of disarming the counter it 8B isoLynx SLX300 Software User Manual records and resets the count values This function computes the running average and reports the last or current measurement when queried 2 3 3 4 Time Between Events This function measures the time between events on two separate channels lt waits until both gates are closed then when gate A opens it begins counting internal timebase source pulses and when gate B opens it stops counting and disarms the timer 2 3 3 5 Frequency Generator This function generates a square wave with frequency up to 100kHz 2 3 3 6 PWM Generator This function takes a user specified period and duty cycle and generates a PWM signal on a digital output channel A typical application would be ramping for servo control or light dimming by starting at one duty cycle and moving to another duty cycle over a given amount of time 2 3 3 7 One Shot Pulse Generator This function provides a one shot pulse which can be retriggered and which has configurable pulse width and optional delay before and after the pulse The pulse can be triggered by software or an external pulse edge and the polarity of the pulse is selectable Minimum pulse width minimum delay before the pulse and minimum delay after the pulse are all 20us 8B isoLynx SLX300 Software User Manual 3 0 8BisoLynx SLX300 Communication Interface Configuration See the 8B isoLynx SLX300 Hardware User Manual for communication port
57. nt 1 Trigger Time Between Events UO Channel 5 Input Event 2 Frequency Generator UO Channel 6 Output Output Signal UO Channel 6 Output Output Signal 1 ENIM Gencralor UO Channel 7 Output Output Signal 2 21 8B isoLynx SLX300 Software User Manual UO Channel 6 Output One Shot Signal SUE UO Channel 5 Input Trigger Signal The Modbus register base addresses for Timer1 and Timer2 are shown below To configure a special function write a data value of 1 7 to the appropriate register For example writing a 1 to address 32900 or 33000 sets the function to Pulse Frequency Counter then the remainder of the parameter registers start from base address 32900 or 33000 The following table identifies Modbus register base addresses for the I O special functions Table 6 3 Digital UO Special Function Base Address Registers REGISTER BASE ADDRESS DATA VALUES 1 Pulse Frequency Counter 2 Pulse Frequency Counter Timer1 32900 0x8084 with De bounce 3 Waveform Measurement 4 Time Between Events 5 Frequency Generator 6 PWM Generator Timer2 33000 0x80E0 7 One Shot Pulse Generator 0 Disable Special Function default setting 6 1 Pulse Frequency Counter The following table identifies Modbus registers used to configure the Pulse Frequency Counter l O special function Table 6 4 Pulse Frequency Counter Registers REGISTER
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59. o the Arm Disarm register and to stop measuring write a O to the Arm Disarm register 35 8B isoLynx SLX300 Software User Manual The following table identifies the Modbus addresses access and data values used to operate the time between events function Table 10 5 Time Between Events Registers REGISTER ADDRESS ACCESS DATA VALUES Arm Disarm Base 1 R W 0 Disarm 1 Arm Status Base 2 R Status Alarm Status Base 3 R Alarm status Number of intervals Events Measured SE SH Write any value to reset to zero Frequency of Events Base 6 7 R Event frequency Time Between Events Base 8 9 R Interval length Maximum TBE Max Baser 10511 RA Write any value to reset to zero TBE Min Base 12 13 R W Minimum Write any value to reset to zero TBE Average Base 14 15 R Average 10 2 5 Frequency Generator Function To use the frequency generator function write a 5 to the base address of one of the timers and configure the generator as described in Section 6 5 Frequency Generator To start the generator write a 1 to the Arm Disarm register and to stop the generator write a O to the Arm Disarm register The following table identifies the Modbus addresses access and data values used to operate the frequency generator function Table 10 6 Frequency Generator Registers REGISTER ADDRESS ACCESS DATA VALUES Arm Disarm Base 1 R W 0 Disarm 1 Arm Status Base 2 R Status
60. omain Post processing of the data can then be performed to derive FFTs averages maximums minimums etc 2 2 2 Writing Analog Data Analog data can be written to analog output channels at any time regardless of the currently configured analog input scan mode See Section 9 0 Writing Analog Output Data for details 2 2 2 1 DAC Continuous Scan Mode Once a value is written to an analog output register an output will stay at the given value until a new value is written to the register or until the system is reset or power cycled If reset or power cycle occurs the channel will revert to its default output value Default output values are configurable on a per channel basis see Section 4 0 Analog ADC DAC Channel Configuration There is no need to refresh analog output channels A process internal to the 8B isoLynx periodically refreshes all output channels with the value that was last written 8B isoLynx SLX300 Software User Manual 2 2 2 2 DAC User Defined Scan Mode Burst Scan Mode In User Defined Scan Mode Burst Scan Mode analog output data can be preloaded in the 64k buffer memory 16k values per channel are allowed The scan interval is also configurable and can be as small as ims A scan is started with a Modbus Write Registers command to a Scan Control register 2 2 3 Cold Junction Compensation CJC The CJC registers must be configured when an 8B37 or 8B47 thermocouple input module is installed in an analog input channel
61. ons Each timer also has two digital I O channels on the system board that are associated with it and can use one or both depending on the selected special function To start a special function first configure the associated l O channel s to input or output then write the special function code into the timer base address see Section 6 0 Digital I O Special Function Configuration The Modbus base address of Timer1 is 32900 0x8084 and of Timer2 is 33000 Ox80E0 10 2 1 Pulse Frequency Counter Function To use the pulse frequency counter function write a 1 to the base address of one of the timers and configure the counters as described in Section 6 1 Pulse Frequency Counter To start the counter write a 1 to the Arm Disarm register and to stop the counter write a O to the Arm Disarm register The following table identifies the Modbus addresses access and data values used to operate the counters 33 8B isoLynx SLX300 Software User Manual Table 10 2 Pulse Frequency Counter Registers REGISTER ADDRESS ACCESS DATA VALUES Arm Disarm Base 1 R W 0 Disarm 1 Arm Status Base 2 R Status Alarm Status Base 3 R Alarm status Pulse count Pulse Count Base 4 5 R W 10M max Write any value to reset counter Frequency count 11kHz max w SCMD isolated Frequency Count Base 6 7 R modules 80kHz max w SCMD PT non isolated module Revolutions per minute RPM Base 8 R 65536 max 0 not selected
62. oseco d 3 1 nanosecond 0x0000 positive polarity InputO Polarity 0x0001 negative polarity Number of periods to measure 2 words Events to Measure iere 0 continue measuring until a Modbus command is sent to stop Sample weight for prior moving average Average Weight 34 R W calculations Default 4 Valid alarms for this function are Alarm Configuration 1 Pulse Count 2 Frequency 3 Duty Cycle Alarm High High Limit a High High limit 2 words Alarm High Limit ssf Rw O High limit 2 words CTE O cm TI Timer Save Function W Write any value to save the current Configuration configuration for this function Counter Timer Function 4 Time Between Events Description Lage Ace lm 0x0000 disarmed disarm Timer Arm Disarm 1 R W 0x0001 armed arm 0 Timer OK 11 Invalid Channel Configuration Timer Status 2 12 Timer arm attempted with no function selected 17 Pulse rate or frequency exceeds max e 3 5 emmmmme 000 50 8B isoLynx SLX300 Software User Manual Number of intervals measured 2 words Write any value to clear this register Number of times per second the time between events is occurring 2 words COR Interval length in timebase units 2 words Maximum time between events 2 words blo any value to clear this register Minimum time between events 2 words Ed any value to clear this register Events Measured EX Frequency of Events Time Between Events TBE Maximum TBE Minimu
63. products including complete systems one 1 year from date of initial delivery iii for all special products sixty 60 days from date of initial delivery and further all products warranted hereunder for which Dataforth has received timely notice of nonconformance must be returned FOB to Dataforth s plant in Tucson Arizona USA within thirty 30 days after the expiration of the warranty periods set forth above The foregoing warranties shall not apply to any products which Dataforth determines have by buyer or otherwise been subjected to operating and or environmental conditions in excess of the maximum value established therefor in the applicable specifications or any products that have been the subject of mishandling misuse misapplication neglect improper testing repair alteration or damage THE PROVISIONS OF THE FOREGOING WARRANTIES EXTEND TO BUYER ONLY AND NOT TO BUYER S CUSTOMERS OR USERS OF BUYER S PRODUCTS THE DATAFORTH STANDARD WARRANTY IS IN LIEU OF ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OR USE AND ALL OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STATUTORY EXCEPT AS TO TITLE THE DATAFORTH STANDARD WARRANTY MAY BE CHANGED BY DATAFORTH WITHOUT NOTICE b Buyer Indemnity Buyer agrees to indemnify and hold Dataforth harmless from and against any and all claims damages and liabilities whatsoever asserted by any person entity industry organization government or governme
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65. rketing the best possible signal conditioning data acquisition and data communication products Our mission is to set new standards of product quality performance and customer service Dataforth Corporation with more than a quarter century of experience is the worldwide leader in Instrument Class Industrial Electronics rugged high performance signal conditioning data acquisition and data communication products that play a vital role in maintaining the integrity of industrial automation data acquisition and quality assurance systems Our products directly connect to most industrial sensors and protect valuable measurement and control signals and equipment from the dangerous and degrading effects of noise transient power surges internal ground loops and other hazards present in industrial environments Dataforth spans the globe with more than 50 International Distributors and US Representative Companies Our customers benefit from a team of over 130 sales people highly trained in the application of precision products for industrial markets In addition we have a team of application engineers in our Tucson factory ready to solve any in depth application questions Upon receipt of a quote or order our Customer Service Department provides fast one day delivery information turnaround We maintain an ample inventory that allows small quantity orders to be shipped from stock Contacting Dataforth Corporation Contact
66. rresponding channel and the system configured accordingly Output channels are automatically included in the refresh scan list 4 2 Analog ADC Channel Average Weights The average weight parameter is configurable on a per channel basis and has a default setting of 4 0x0004 When the system is in Continuous Scan Mode a running average is calculated for each analog input channel each time it is sampled The running average formula is Average Average Sampled Value Average Average Weight When in Continuous Scan Mode analog input channels are sampled every 160us 6000 samples per second Therefore the sample rate for a given input channel is dependent on the number of channels configured as inputs The per channel sample rate is given by the following formula Sample Rate samples second 1 160us x 12 4 2 4 Analog Channel Average Weight Registers The following table identifies the Modbus register addresses and data values used to configure average weight parameters If a value other than one specified below is written to a register it will be interpreted as the next smallest valid average weight Table 4 2 Analog ADC Channel Average Weight Registers REGISTER ADDRESS DATA VALUES Channel Average Weight 48 59 0x0030 0x003B utut 4 3 Analog DAC Channel Default Outputs The default output is configurable on a per channel basis and has a default setting of 0 0x00 At power up all analog output
67. rval 0 65535 1044 40k sample rate Scan Buffer Size 2 1920 200 20k words buffer memory Scan parameters are stored in non volatile memory and can be configured by writing the appropriate Modbus registers They will persist across power cycles resets and brownouts Scan parameters can be reset back to factory default values by writing the Reset Register with the appropriate value see Section 13 2 Firmware Resets 7 1 Scan Mode The Scan Mode must be one of the following e Idle The system is in idle condition for configuration and analog inputs are not scanned The continuous and user defined scans must be started from idle mode e Continuous All analog inputs are scanned continuously in sequential order at a fixed 6000 samples per second scan rate Channel data is placed in a circular buffer in Processor Board SRAM Only the most recent conversion is kept for each analog input A running average maximum and minimum value is maintained for each analog input Channel data is accessed by reading the appropriate Modbus registers e User Defined The user defines parameters such as the scan list scan interval and scan buffer size The scan process is started by writing the appropriate value to the Scan Control Register The scan process samples each entry in the scan list in the sequence specified and inserts the conversion results into a first in first out FIFO queue Channel data is read from the FIFO queue b
68. s command to a Scan Mode register The scan continues until one of the following occurs 1 the scan defined buffer memory becomes full or 2 the scan is aborted by the user Due to the FIFO buffer architecture used by the User Defined Scan Mode conversion data is never overwritten This allows an application to reconstruct a highly accurate time correlated representation of the signals being measured More details are given in Section 7 0 Analog Input Scan Configuration and Section 8 0 Reading Analog Data 2 2 1 3 Deciding which Scan Mode to Use For most general purpose signal monitoring applications Continuous Scan Mode is more than adequate Reading the most recent conversion results is like taking a snapshot in time of one or more analog input signals Average maximum and minimum values give an indication of what the signals are doing over time Continuous Scan Mode is also easy to use just configure the channels and start reading data The drawbacks to Continuous Scan Mode are 1 due to the circular buffer architecture when a block of channels is read there is no way to determine which channel s data is the most recent and 2 timing between scans is fixed Applications that require better time correlation and a fast sampling rate are advised to use the User Defined Scan Mode Although average maximum and minimum values are not calculated in this mode the user can construct a highly accurate representation of the signals in the time d
69. s that are not yet available Starting a new scan will clear the contents of the scan data buffer After data is read from the buffer it is no longer available 8 2 4 User Defined Scan Data Registers The following table identifies the Modbus register addresses and data values used to read analog data resulting from the user defined scan Table 8 2 User Defined Scan Control Data Registers REGISTER ADDRESS DATA VALUES Scan Data FIFO 256 381 0x0100 0x017D 0 4095 0x0000 0x0FFF 30 8B isoLynx SLX300 Software User Manual 9 0 Writing Analog Output Data In order to write analog data an 8B39 or 8B49 output module must be installed in one or more of the analog output channels Writing data to an analog output channel results in the voltage represented by the data value being placed at the input of the 8B39 or 8B49 output module The 8B isoLynx SLX300 stores the last value written to each channel 9 1 Write Analog Output Data Registers The following table identifies the Modbus register addresses and data values used to write data to analog output channels Table 9 1 Write Analog Data Registers REGISTER ADDRESS DATA VALUES 0 4095 0x0000 0xOFFF 4 Channel DAC Output 4352 4355 0x1100 0x1103 0 OV 4095 5V 9 2 Analog Output DAC User Defined Scan Burst Mode In DAC User Defined Scan Mode Burst Mode the analog output data can be preloaded in the 64k buffer memory
70. scribed in Section 4 0 Analog ADC DAC Channel Configuration Digital channel parameters and their configuration are described in Section 5 0 Digital I O Channel Configuration Digital UO special function parameters and their configuration are described in Section 6 0 Digital UO Special Function Configuration Analog and digital channel configurations can be reset to factory default settings by issuing reset commands to the appropriate registers see Section 13 2 Firmware Resets 2 2 Analog Data Analog data is read from analog input channels and written to analog output channels Analog input data values are 12 bit unsigned numbers that represent voltages in the 0 to 5V range 0x0000 represents OV and OxOFFF represents 5V Each increment or count in the data value represents a 1 22mV step in voltage Analog output data values are 12 bit unsigned numbers that represent voltages in the O to 5V range 0x0000 represents OV and OxOFFF represents 5V Each increment or count in the data value represents a 1 22mV step in voltage Analog data always represents a voltage How this value maps to actual engineering units depends on the 8B module from which the data is read or to which the data is written 8B isoLynx SLX300 Software User Manual Example 1 Data from an 8B37J thermocouple input module is read This module has a 100 C to 760 C input range and a 0 to 5V output range A data value of 0x0000 OV corresponds to an input of 100 C
71. ss The IP address should be configured such that it is compatible with the network on which the device will be installed Subnet Mask This parameter specifies the network s subnet mask This parameter needs to be configured to match the subnet mask of the network on which the device will be installed 3 6 1 Modbus TCP Parameter Registers The following table identifies the Modbus register addresses and data values used to configure Modbus TCP parameters 8B isoLynx SLX300 Software User Manual Table 3 4 Modbus TCP Parameter Registers REGISTER ADDRESS DEFAULT VALUES IP Address 33405 33408 0x827D 0x8280 192 168 128 100 Subnet Mask 33409 33412 0x8281 0x8284 255 255 0 0 These parameters are stored in non volatile memory on the system board and will persist across power cycles resets and brownouts Changes will take effect on the next system power cycle 11 8B isoLynx SLX300 Software User Manual 4 0 Analog ADC DAC Channel Configuration Analog channels have the following configurable parameters Table 4 1 Configurable Analog ADC DAC Channel Parameters PARAMETRO CHANNELS VALID SETTINGS DEFAULT SETTING Analog ADC Data Input No need to be configured ADC Average Weight 1 to 32768 4 0x0004 CJC Control 0 or 1 0 O disable 1 enable CJC Type Type number 11 CJC Temperature Range 100 to 1750C
72. te a 0 to reset 12 Channels Average Data 36 47 O dug OREA Write a 0 to reset Average Average Sampled Value 12 Channels Average Weight 48 59 Average Average Weer EEN Average Weight 0 4095 0x0000 0x0FFF 0 OV 4095 5V 255598 Multiple reads up to 125 with one read command Total 48 entry scan list 4864 12 analog channel IDs 0 11 Scan List 4912 R W End of list indicator is 255 0x00FF Default 0 1 2 3 4 5 6 7 8 9 10 11 or 255 Scan interval value 41780000 sample rate Default 1044 40k sample rate Scan buffer size register value Scan buffer Scan Buffer Size 4914 R W PRETIO Valid setting is 2 1920 200 1920000 Default 200 20k words buffer memory 0 65535 0x0000 0xF FFF Scan Samples Counter 4915 If the GE is over OXFFFF counter OxFFFF 0 Idle 1 Continuous 2 User Defined Scan Mode Command 4612 W To change from continuous mode to user defined mode set to idle mode first Bic cal NUNG IM NARRA Mode 4352 0 4095 0x0000 0x0FFF 4 Channels Output 4355 an o 0 OV Pn 5V 4368 0 4095 0x0000 0x0FFF 4 Channels Default Output 4371 R W 0 OV 4095 5V Default 0 OV 43 8B isoLynx SLX300 Software User Manual Data Value 0 4095 0 5V 1 stop scan 4096 loop back scan Multiple read write up to 10 data entries with one read write command To reset the read write pointer write a 0 to the scan control register at Modbus address 4
73. te irte Let ted tr Ree Io AR rl ERRERA 33 10 2 Digital UO Special Functions eene enne enne terrens nnns nnne 33 10 2 1 Pulse Frequency Counter Functon enne 33 10 2 2 Pulse Frequency Counter with De bounce Function oooccconoccccconocononanononccananoncnnnnnos 34 10 2 3 Waveform Measurement Function sss nennen 34 10 2 4 Time Between Events Function nennen nnne nennen 35 10 2 5 Frequency Generator Function ssssssssssseeeeeeeeeneeen nennen nnne 36 10 2 6 PWM Generator FUNCTION ener enne nnne 36 10 2 7 One Shot Pulse Generator Funchon essen 37 1 0 User Data EE 38 11 1 RER EC 38 120 Device Informationsz I Ee A A t fe Aia 39 12 1 Device Information Registers sssssssssssssssssseeeeee enne 39 13 0 Miscellaneous Function and Control 40 13 1 Temperature SerisOtr EE 40 13 1 1 Temperature Sensor Register nennen nennen 40 13 2 Eirmware Reselts 4 eon o te e A lee tie pue adem 40 13 2 1 Reset Registers eei ee duse ve eerta a piu Ern 41 14 0 Appendix A 8B isoLynx SLX300 Modbus Address Map 42 15 0 Appendix B 8B isoLynx SLX300 Tbrougbput AAA 54 B 1 Test Networks and Test Getup nr nn rc rn rn 54 B 2 Throughput Descriptors e nier ii ida 54 B 3 Gommand Wl 55 B 4 Command Rates dod AA ceed eee 55 B 5 Throughpuk E DII 56 8B isoLynx SLX300 Software User Manual About Dataforth Corporation Our passion at Dataforth Corporation is designing manufacturing and ma
74. the 8B thermocouple input module that is installed in the analog input channel slot The value is determined by whether the module is an 8B37x or 8B47x xx module and the input thermocouple type Table 4 5 CJC Type Registers REGISTER ADDRESS DATA VALUES 8B37J 11 default 8B37K 12 8B37R 13 8B37S 14 8B37T 15 8B47J 01 21 8B47J 02 21 12 Type Registers 5904 5917 0x1710 0x171B 8B47J 03 21 8B47J 12 21 8B47K 04 22 8B47K 05 22 8B47K 13 22 8B47K 14 22 8B47T 06 25 8B47T 07 25 4 4 3 CJC Lower and Upper Range Registers The following table identifies the Modbus register addresses and data values used to configure CJC lower and upper temperature ranges The CJC range registers must be configured to match the input temperature limits of the 8B37x or 8B47x xx thermocouple input module that is installed in the analog input channel 8B isoLynx SLX300 Software User Manual Following are the temperature ranges for standard Dataforth 8B thermocouple input modules Non Linearized thermocouple input modules 8B37J 100 C to 760 C 8B37K 100 C to 1350 C 8B37R 100 C to 400 C 8B37S 0 C to 1750 C 8B37T 0 C to 1750 C Linearized J type thermocouple input modules 8B47J 01 0 C to 760 C 8B47J 02 100 C to 300 C 8B47J 03 0 C to 500C 8B47J 12 100 C to 760 C Linearized K type thermocouple input modules 8B47K 04 0 C to 1000 C 8B47K 05 0 C to 500C
75. the first address is 0x0000 0 and the last is OXFFFF 65535 Using this convention address values map directly to address fields of all Modbus commands Although only a small percentage of available Modbus addresses are mapped to data and or control functions the 8B isoLynx SLX300 allows access to the entire range of all Modbus address spaces If a Read command accesses an address that the 8B isoLynx does not map 0x0000 will be returned for registers If a Write command accesses an address that the 8B isoLynx SLX300 does not map the write will have no effect Appendix A of this manual describes all Modbus addresses that the 8B isoLynx SLX300 maps The same information is also distributed throughout this document in the appropriate sections 8B isoLynx SLX300 Software User Manual 3 1 5 Modbus Exceptions The 8B isoLynx SLX300 will return the following Modbus exception codes under the given conditions e 1 Illegal Function The received function code is unknown or not supported e 2 lllegal Address The received address and quantity would access data beyond address OxFFFF e 3 Illegal Data The number of bytes in the request does not match that expected or one or more fields of the command contain an invalid value i e a quantity field is zero or too large a byte count field is zero or does not agree with the quantity field etc e 6 Server Busy This exception only occurs with Modbus TCP and indicates that the 8B isoLyn
76. ual measured performance All data presented represents system performance in Continuous Scan Mode Short term throughput is significantly higher if the system is operated in Burst Scan Mode B 1 Test Networks and Test Setup Modbus RTU throughput was measured using a point to point RS 232 connection or point to point USB connection between an 8B isoLynx SLX300 and a host computer Serial communication was performed at 921 6kbps with 8 data bits 1 stop bit and even parity Modbus TCP throughput was measured using an Ethernet switch with 10 100 Base T connection between an 8B isoLynx SLX300 and a host computer Calculated data is based on command processing time in the system firmware and Modbus communication requirements Measured performance was determined by executing the appropriate command 100 000 times and averaging the command execution time every 10 000 transactions Commands were looped using a Windows application Observation of the data reveals that measured performance is slower than calculated performance for some commands The specific computer hardware and operating system used can affect realized performance and should be carefully evaluated in applications where throughput is critical The system used for measuring performance is as follows Computer Systemax Operating System Windows XP SP3 RS 232 Interface SIIG CyberPro PCI 8S USB Interface CP210x XP driver to communicate with the SLX300 USB to Serial Bridge
77. ues used to operate the waveform measurement function Table 10 4 Pulse Waveform Measurement Registers REGISTER ADDRESS ACCESS DATA VALUES Arm Disarm Base 1 R W 0 Disarm 1 Arm Status Base 2 R Status Alarm Status Base 3 R Alarm status Number of cycles Events Measured Base 4 5 R W Write any value to reset events 10M max Frequency count Frequency Count Base 6 7 R 15112 max Duty cycles Duty Cycle Combined Base 8 9 HI 8 bit integer 8 bit fraction Period Base 10 11 R Period of waveform Open Time Base 12 13 R Time open positive pulse width Close Time Base 14 15 R Time close negative pulse width Average Open Time Base 16 17 R Average open time Average Close Time Base 18 19 R Average close time Max time open Max OPER TIME Baserad PUW Write any value to reset to zero d Min time open MimOper Time EE RAN Write any value to reset to zero Max time close Mix Gilose Time sere te BON Write any value to reset to zero Min time close Mielos Time SE PN Write any value to reset to zero Duty Cycle Integer Base 28 R Duty cycle integer portion 0 100 Duty Cycle Fractional Base 29 R Duty cycle fraction portion 10 2 4 Time Between Events Function To use the time between events function write a 4 to the base address of one of the timers and configure the function as described in Section 6 4 Time Between Events To start measuring write a 1 t
78. uous pulse width measurement with running average This function operates the same as the single pulse width measurement but instead of disarming the counter when the gate closes the count is recorded and the system waits for the next pulse This function computes a moving weighted average and reports the last measurement or average when queried e Single period measurement Measures the period of the gated input This function waits until the gate is closed then begins counting of timebase source pulses when the gate opens When the gate opens a second time counting stops and the counter is disarmed Source pulses are internal e Continuous period measurement with running average This function operates the same as the single period measurement but instead of disarming the counter when the gate opens the count is recorded and the system continues timing the new period This function computes the moving weighted average of the period and reports the last measurement or average when queried e Duty cycle measurement of a single period This function measures pulse high time and pulse low time and is equivalent to PWM decoding It uses two capture registers to record time high and time low This function waits until the gated input is closed to arm and then disarms after the second gated input opens e Continuous duty cycle measurement with running average This function operates the same as the duty cycle measurement of a single period but i
79. x SLX300 is already processing its maximum number of simultaneous transactions and cannot accept more Try the request again after a response is received from one of the four active transactions 3 2 Changing the Communication Protocol Settings Refer to the 8B isoLynx SLX300 Hardware User Manual for details on this process 3 3 Resetting Communication Parameters to Factory Default Values Communication parameters can be reset to the factory default settings by installing the Reset jumper and cycling power to the board See the 8B isoLynx SLX300 Hardware User Manual for the location of this jumper Use this procedure only when there is a need to return communication parameters to a known state 3 4 Modbus Slave ID The Modbus Slave ID is configurable The factory default settings must be used for the initial connection Table 3 1 Configurable Interface and ID RTU Parameters PARAMETER VALID SETTINGS DEFAULT SETTING Slave ID 16 31 0x10 0x1F 16 0x10 The upper four bits of the Slave ID are stored in non volatile memory on the system board and will persist across power cycles resets and brownouts The Slave ID can be changed by writing the appropriate Modbus register The lower 4 bits of the Slave ID are configured by the address jumpers on the system board see the 8B isoLynx SLX300 Hardware User Manual for jumper locations If a jumper is open or removed the corresponding bit is read as a 1 and if it is close
80. y reading the appropriate Modbus registers 7 1 1 Scan Mode Register The following table identifies the Modbus register address and data values used to configure the analog input scan mode If a value other than the one specified below is written that value is ignored and the analog scan mode remains unchanged The scan will start from idle mode Set the mode back to idle before changing to another scan mode Table 7 2 Analog Input Scan Mode Register REGISTER ADDRESS DATA VALUES 0 Idle Scan Mode 4612 x1204 1 Continuous 2 User Defined 26 8B isoLynx SLX300 Software User Manual 7T 2 User Defined Scan Parameters The following parameters are only valid in User Defined Scan Mode Scan List The scan list is a list of up to 48 analog input channel numbers 0 11 terminated by an end of list indicator 255 The scan list defines the channels that are scanned and the order in which they are scanned Channels can be listed in any order and may be duplicated but they must be one of the 12 analog input channels There is an end of list indicator in position 4912 that cannot be erased If the user leaves out the end of list indicator 255 scan entries between the last programmed channel and entry 48 will be set to O and the scan will cover 48 channels Scan Interval The scan interval defines the scan time between two channels The formula for the interval value is given below Interval Value 41780
81. yers order of the products furnished hereunder e Warranty Procedures Buyer shall notify Dataforth of any products which it believes to be defective during the applicable warranty period and which are covered by the Warranty set forth above Buyer shall not return any products for any reason without the prior authorization of Dataforth and issuance of a Return Material Authorization RMA number After issuance of a RMA number such products shall be promptly returned by buyer and in no event later than thirty 30 days after the Warranty expiration date transportation and insurance prepaid to Dataforth s designated facility for examination and testing Dataforth shall either repair or replace any such products found to be so defective and promptly return such products to buyer transportation and insurance prepaid Should Dataforth s examination and testing not disclose any defect covered by the foregoing Warranty Dataforth shall so advise buyer and dispose of or return the products in accordance with buyer s instructions and at buyer s sole expense and buyer shall reimburse Dataforth for testing expenses incurred at Dataforth s then current repair rates f Repair Warranty Dataforth warrants its repair work and or replacement parts for a period of ninety 90 days from receipt by buyer of the repaired or replaced products or for the remainder of the warranty period for the initial delivery of such order as set forth in parag

8B SLX300 Data Acquisition System Software User Manual

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