User Manual
Contents
1. DO 0 NUM Integrity Instruments USBM100 Series User Manual Communications The Integrity Instruments USBM100 Series UO Modules support USB communications interface using simple ASCII commands carriage return decimal code 13 or Hex code 0x0D marks the end of each command Line feeds decimal code 10 or Hex code 0 0 are ignored USB Interface e USB operates Full Duplex e USB modules can also enter Continuous Stream Mode whereby the module is configured via EEPROM settings to continuously send data to output its current Digital Counter or Analog readings USB Command Format USB Command Format Command Response CR ASCII carriage return 13 0x0D hex NOTE e All numeric data is represent as ASCII Hexadecimal integers values x y in the Command and Response table module receives an illegal or improperly formatted command Error Response is sent e AI ASCII characters are CASE SENSITIVE use all capital letters Integrity Instruments USBM100 Series User Manual Commands and Responses v4 3 Firmware Command Response Sent by Host Sent by UO Module Description V Firmware version x y Ixxyy Input digital port status xx 00 yy PORT2 Also returns current output port status Output digital port xx 7 ignored yy PORT2 Set digital direction xx 7 ignored yy PORT2 bit set 1 Input bit clear 0 Output Get current d2. Integrity Instruments P O Box 451 Order Phone 800 450 2001 Pine River Minnesota Fax Phone 218 587 3414 56474 USA Tech Phone 218 587 3120 http www integritvusa com USBM1A0 Series UO Modules Digital I O Analog I O Integrity Instruments USBM100 Series User Manual Table of Contents Introduction FeatUres eco eee DEENEN A a seda P eee na d 3 QUICK Stait TR 4 Communications USB Packet Information 6 Commands and Responses Command and Response Command and Response Examples Analog Control Nibble Module Configuration EEPROM Map Auge dE b et bos ed bcne s 10 EEPROM Map Reed 11 Sampling rates Analog and digital 7 MAUR 12 Modes of Operation Polled Mode enirn tne reete en ia Asynchronous Update Mode Continuous stream s Continuous stream Mode Configuration EEPROM Map x Continuous stream Mode Exvample Digital 1 Technical Information Digital I O Characteristics 16 Digital UO Port Configuration Example n PWM Characteristics Gab 5 EE 17 Analog UO Technical Information Analog I O Characteristics sssssssseeeeeee Voltage References Analog Voltage Sampling
3. Polled Mode 777 412 143 72 Digital I O Polled Mode 4 Continuous Mode 1515 847 310 157 Continuous Mode 1884 Sampling rates in samples per second for single analog channel or 8 bit digital LC port tested on Windows 2000 850 Mhz P3 with A D clock running at full speed Samples per channel Sample rate number of channels being sampled 78 8 Modes of Operation The Integrity Instruments UO modules can operate in three operation modes 1 Polled 2 Asynchronous Update 3 Continuous Stream These modes of operation can be used singularly or together in combination 1 Polled Mode By far the Polled Mode is the most common usage of the 232M100 Series UO modules In this mode the Host computer sends a command to the Modules which in turn sends an associated response back to the Host computer 1 Command Sent by Host UO Module HOST Computer 2 Response Sent by Module USBM100 Series 2 Asynchronous Update Mode The UO Module sends data without the Host sending a command to poll the UO Module in Asynchronous Update Mode NOTE Asynchronous Update Mode is configured using EEPROM locations 0x04 0x05 12 Integrity Instruments Value at EEPROM Location 0x04 0x05 USBM100 Series User Manual Description 0x0000 Asynchronous Update Mode disabled 0x0001 State Change Update Digital Input or Pulse Counter change 0x0002 to OxFFFF Decimal Range 2 to 65535
4. M 20181 ee 100 SER Step 1 Lal j pe stem See ege Den Ro Steps 283 Lal J Al EECH Integrity Instruments USBM100 Series User Manual TK T BASH osggers ean tr seau Step 2 Step 3 EL Le GH ae rm 1 CS E erste 1 mmm lu SSES A eg I runt al TK ee Tr Soe WEN Step 4 Step 4 Ss D i H i i i i 1 a E PIT Za CRAP MM Your First Command Now that you have a EZTerminal session running your ready to power up the USBM100 Series UO Module After powering up your USBM100 Series Module EZTerminal will receive a welcome message from the unit indicating you are ready to provide your first command RS 232 Firmware Version 3 1 Command Typethe letter V and the Enter Key You should see V30 on the screen NOTE Make sure to type CAPITAL V not lowercase v After your first command see Commands and Responses section for more commands Screenshots and setup instructions performed running EZTerminal on a PC installed with Microsoft Windows XP Operating System teter MEN my f e Settings logge Wee Osa 0 Integrity Instruments 2324200 Module v3 1 A Ready 112200 ATSO 0 CTSG
5. Timed Update Time Value 1 millisecond Range 002 second 65 5 seconds 2 Asynchronous Update Mode State Change Update When EEPROM locations 0x04 0x05 0x01 the USBM100 Series UO module enters an asynchronous update mode whereby any detected change on the Digital Input port or the Counter Capture port causes the module to transmit data to the host Status Change Data Sent by Module Digital Input port change IXXXX Counter Capture change HOST 1 Data Sent by Module UO Module Computer 232M100 20 Asynchronous Update Mode Timed Update When EEPROM locations 0x04 0x05 0x0002 0xFFFF the 232M100 Series UO module enters a timed update mode whereby the I O module will send data to the host after the specified time period has elapsed Time Period Value EEPROM locations 0x04 0x05 001 second When using Asynchronous Update Mode the UO module uses the Continuous Stream Mode configuration to determine the data sent to the host 3 Continuous Stream Mode The final mode of operation is Continuous Stream mode This mode constantly sends or streams data to the host until the host halts the mode In brief the Module can send 0 thru 8 analog samples digital input status and the counter capture status The I O module uses parameters found in EEPROM locations 0x10 thru Ox1A to configure the Continuous Stream mode Therefore the EEPROM must be configured
6. WARNING The I O Module CPU must be reset before new EEPROM settings take effect 10 Integrity Instruments USBM100 Series User Manual EEPROM Map Address Description OxOF N A Reserved 0x10 Continuous Stream Analog configuration count 0x00 No analog stream readings 0x01 0x08 Number of analog queries factory default 0x00 See Modes of Operation Continuous Stream for locations 0x11 0x1A Analog Query 1 control byte analog control nibble Analog Query 2 control byte analog control nibble Analog Query 3 control byte analog control nibble Analog Query 4 control byte analog control nibble Analog Query 5 control byte analog control nibble Analog Query 6 control byte analog control nibble Analog Query 7 control byte analog control nibble Analog Query 8 control byte analog control nibble Continuous Stream Digital Input configuration 0x00 Digital Input status OFF OxFF Digital Input status ON factory default 0x00 Continuous Stream Pulse Counter configuration 0x00 Pulse Counter status OFF OxFF Pulse Counter status ON factory default 0x00 Ox1B to Ox3A N A Reserved calibration DO NOT TOUCH Ox3B to OxFF Available to User 11 Integrity Instruments USBM100 Series User Manual Analog amp Digital UO Sampling Rates Analog Baud Rate 115 200 57 600 19 200 9600 Baud Rate 115 200
7. 15 Ma Clear pusle counter Current count 0 U340F I Unipolar analog control nibble 0x3 Analog reading 0x40F K00 1 Current receive errors 0 Jo Clear receive error count Current receive errors Pi PWM freq 50499 Hz PWM duty 10 6 Q1 123456 Unipolar analog control nibble 0x3 Analog reading 1 123456 volts Wo Write EEPROM Address 0x04 with value 0x10 R104 Read EEPROM Adress 0x04 value is 0x10 SJ IOOEF U800F IOOFF 4 U800F START continuous stream mode See Modes of Operation section This example illustrates continuous stream mode configured to continuously update with Input Digital Port command and Query Analog command with control 0x1 The module continues until a command 15 received HALT continuous stream mode Reset CPU forces a watchdog timeout Integrity Instruments USBM100 Series User Manual Analog Control Nibble and Example The USBM100 Series modules equipped with analog inputs utilizes the internal analog to digital conversion in the processor chip In the process of performing a data sample the user sends a control nibble to the USBM100 Series module The USBM100 Series module in turn performs a data conversion using the control nibble and transmitts a response data sample back The following table lists each of the 8 possible analog configurations NOTE e All numeric data is represent as ASCII Hexadecimal int
8. Analog Conversion Analog Offset Calibration sse Analog Current Sampling 2 Analog Current Conversion Digital amp Analog UO Port Specifications Digital amp Analog pin oute 21 Module Specifications PGB Ill stratioris nier errem ien 22 Dip switch and jumper settings 22 USBM300 Series Module Specifications 23 Cabling and 23 Peripherals Analog Connection Board Signal Conditioner Board DB15 DB25 Terminal Strip Board S Digital Interface Board Integrity Instruments USBM100 Series User Manual Introduction Welcome to Integrity Instruments USBM100 Series of I O modules These modules using RS 232 communications are available in an enclosure or open allowing you the end user complete flexibility when determining the parameters for your project Configurations for USBM100 series model are USBM1AOCE 8 digital I O and 8 channels A D conversion With enclosure USBM1AOCT 8 digital I O and 8 channels A D conversion No enclosure I O Module features MPU MPU Clock Interface Baud LED Watchdog POR Brownout Temperature PCB Power Microchip PIC18F4455 32 Mhz RS 232 single ended 9600 19200 57600 115200 DIP switch selectable Bicolor diagnostic LED MPU has built in watchdog time
9. away from the USBM100 Series module Use good wiring practices especially in regards to ground connections USB interface can generate approx 2 mv noise 19 Integrity Instruments USBM100 Series User Manual Resistors for Analog and Digital I O The digital I O points have a 100K resistor to ground to prevent floating inputs TO DIGITAL UO MPU DIGITAL I O 100K OHM The analog inputs have two 560 ohm resistors in series to convert the 0 to 10 volt input to the 5 volt mpu input ANALOG INPUT 560 MPU ANALOG INPUT rP 560 OHM TERMINAL STRIP PINOUTS DIGITAL TB2 COMMPORT ANALOG UNREG O PIN 1 CHANO O O CHAN 1 Ed ehan s O O GND O CHAN 4 PWM O O CHAN5 PULSE CNT O O CHAN 6 BIT7 O O 7 BIT6 O GND BIT5 O O GND BIT4 O O GND BIT3 O O GND BIT2 O O 5VDC BIT1 O O 5VDC BITO O UNREG 20 Integrity Instruments USBM100 Series User Manual Hex Conversion Chart BIT VALUE BIT BIT BIT VALUE VALUE VALUE H H E E X X V 7 v A A L L U U E E H H E E X X VI L L U U E E 21 Integrity Instruments USBM100 Series User Manual Model USBM100 Series Communications LED Power Port Digital Analog Input TB3 U1 DIP switch COMMUNICATION PORT ON POWER CONNECTIONS ON BOARD WIRING BOARD WIRING GN
10. before engaging the Continuous Stream mode Continuous Stream Mode setup steps 1 Configure EEPROM locations 0x10 thru 0x1A 2 Begin Continuous Stream mode by sending command S to the Module 3 Continuous Stream mode by sending command H to the I O Module 13 Integrity Instruments USBM100 Series User Manual Continuous Stream Mode Configuration EEPROM Locations All parameters configuring the Continuous Stream mode are strored in EEPROM See the following table for a description of the locations and the parameters Use command W to update EEPROM values EEPROM Value Description 0x10 0x00 0x08 Analog Configuration 0x00 No analog samples 0x01 0x08 Number of analog samples Sample 2 0 13 Sample 3 Sample 6 0 17 7 0 18 Sample 8 0 19 Ox1A Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y Ox8y 0x00 OxFF 0x00 OxFF Unipolar Analog y analog control nibble Unipolar Analog y analog control nibble Unipolar Analog y analog control nibble Unipolar Analog y analog control nibble Unipolar Analog y analog control nibble Unipolar Analog y analog control nibble Unipolar Analog y analog control nibble Unipolar Analog analog control nibble Digital Input status disabled Digital Input status enabled Pulse Counter status disabled Pulse Counte
11. D 5 O TB1 m 9 VDC 1 211 GND J1 VDC GND Power 2 5mm Baud Rate Switch Settings Baud Rate 9600 baud 57600 baud 115200 baud factory default VE 22 Integrity Instruments USBM100 Series User Manual 232M300 Module PIC16F874A MPU 40 pin dip U3 RS 232 driver 16 pin DIP LED Operation Blinking Green 1 per Second Unit functioning correctly idle Blinking Green Rapid or Steady Unit receiving serial data Blinking Red Rapid or Steady Unit transmitting serial data No LED Unit is not functioning Power Supply 7 5 15 0 Vdc approx 50 ma nominal power 24 Vdc maximum 100 ma current draw we suggest our PS9J 9VDC 400 ma unregulated power supply GND and Shield The GND and Shield terminals are connected on the 232M300 Series boards and are therefore electrically equivalent USB Cabling The USB interface uses a USB cable 23 Integrity Instruments USBM100 Series User Manual Peripheral Add On Modules The EXP X expander unit provides for digital interface and signal conditioning via industry standard opto isolated I O modules such as Opto 22 Each unit has 4 I O points with large easy to use terminal screws If more I O points are required simply plug in another unit up to 8 total I O points may be used the USBM100 module Opto isolated modules 90V 140V AC input 12V 140V AC output 3 3V 32V DC input 3V 60V DC output You will have to use our DB25TSF adapter to
12. HOST may send any command during the Continuous Stream mode and it will be accepted and processed by the I O Module as in normal operation NOTE Engaging the Continuous Stream mode at a high baud rate 115 2K baud may overwhelm certain host computer systems due to the high volume of data transmitted on the RS 232 link The is especially true of slower 386 or 486 based systems running Windows 95 with limited memory resources 15 Integrity Instruments USBM100 Series User Manual Digital UO Characteristics The following chart lists the Digital I O characteristics and values Characteristic Value Digital UO Current I O line source sink 25 ma Total current PORT2 200 ma Digital I O Voltage Levels Input Off 0 OV 0 8V Input On 1 2 0V 5 0V Output Off 0 0 6V max Output On 1 4 3V min Pulse Counter Input 1 Mhz max input rate 32 bit counter capture Counter increments on high low transition Digital Port Configuration Example Any Digital configuration changes made to the Module using the T command are stored in EEPROM location 0x03 EEPROM Location 0x03 Port 2 UO Configuration When using either the T command or directly writing to EEPROM using the W command a binary 1 at a bit location puts the I O line into Input mode while a binary 0 at a bit location puts the UO line into Output mode NOTE e All numeric data is represent as ASCII Hexadecimal integers The sym
13. bol equates to a carriage return decimal 13 hex OxOD Host Command Module Response Action T0000 1 All UO lines are configured as Outputs TOOFF 1 TJ All UO lines are configured as Inputs TOOOF 1 Ta Port 2 bits 0 3 Inputs Port 2 bits 4 7 Outputs TOOFO0 1 TH Port 2 bits 0 3 Outputs Port 2 bits 4 7 inputs T0034 Port 2 bits 4 5 2 Inputs Port 2 bits 7 6 3 1 0 Outputs 16 Integrity Instruments USBM100 Series User Manual Pulse Width Modulation PWM Characteristics The 232M100 Series modules have a configurable PWM output There are two settings to configure for proper PWM operation PWM frequency and PWM duty cycle PWM Command Pxxyyy yyy Duty 10 bits max Divisor 0x00 OXFF Pwm Duty 0x000 OX3FF Pwm Duty 0 PWM output is disabled output 0 PWM Control Values 32 Mhz clock PWM Period Pwm Divisor 1 8 000 000 PWM Duty Period Pwm Duty 32 000 000 Duty Resolution log 32 000 000 Fpwm log 2 PWM Duty Cycle PWM Duty Period PWM Period if PWM Duty Period gt PWM Period then PWM Duty Cycle 100 Pwm Divisor PWM Freq Duty Resolution OxFF 255 31 250 Hz 10 bits see note OxFE 254 31 373 Hz 10 bits Ox5B 91 86 957 Hz 8 bits 0x00 0 8 000 000 Hz 2 bits Note Pwm Divisor OxFF cannot achieve complete 10096 duty cycle Use Pwm Divisor OxFE if 10096 duty cycle is requ
14. e input voltage range is determined by the reference voltage Thereis only one analog sample type 1 Unipolar Sampling type results in 10 bit binary integer value Vref 5 000 standard Unipolar Analog Sampling Resolution Unipolar analog sampling span is from ground GND to voltage reference Vref Only positive voltages are sampled in unipolar mode The unipolar sample is represented as an unsigned integer as follows Unipolar voltages OV Vref 1 LSB unipolar Vref 1024 1 LSB unipolar 5 000 1023 But there is a voltage divider on the inputs dividing the input equally Vref effectively 10 1 LSB unipolar 5 000 1023 X 2 1 LSB unipolar 0 0097751 18 Integrity Instruments USBM100 Series User Manual Voltage Conversion The Analog conversion value obtained from the USBM100 Series module is represented as an integer value unsigned for Unipolar sample and is normally converted to a Real or Floating Point number for ultimate usage Vref 5 000 standard Unipolar Voltage Conversion Formula Volts unipolar ADC Sample 5 000 1023 X 2 Volts unipolar Sample 0 0097751 Obtaining accurate Analog samples Please keep the following points in mind when attempting to obtain accurate samples Avoid high impedance analog signal sources Watch out for UPS systems They create loads of EMI EMF noise Keep the analog signal source as close to the ADC x module as possible Keep transformers far
15. egers symbol equates to a carriage return decimal 13 hex OxOD Analog UO Technical Information section for sample to volts conversion Control Nibble Analog Sample Single Point Single Point Single Point Single Point Single Point Single Point Single Point Single Point Command Response Sent by Host Sent by I O Module Description U2123 1 Unipolar sample CH2 Control 2 Analog sample 0x123 decimal 291 U6123 1 Unipolar sample CH6 Control 7 2 Analog sample 0x123 decimal 291 Q3 694532 Unipolar sample CH2 Control 2 Analog sample 3 694532 volts Q1 682473 Unipolar sample CH6 Control 2 Analog sample 1 68247 volts Integrity Instruments USBM100 Series User Manual EEPROM Map Address Description 0 00 N A Reserved 0 01 N A Reserved 0x02 N A Reserved 0x03 Data Direction Port 2 Bit set 1 Input Bit clear 0 Output factory default OxFF 0x04 0x05 Asynchronous Update Mode Configuration 0x0000 No asynchronous updates 0x0001 Change Update on Digital Input or Counter change 0x0002 0xFFFF Timed Update Time Value 1 milliseconds 16 bits upper byte in 0x04 lower byte in 0x05 factory default 0x0000 0x06 N A Reserved 0x07 Port 2 Power on Default output factory default 0x00 0x08 N A Reserved 0x09 to OxOE N A Reserved
16. igital direction xx 00 yy PORT2 bit set 1 Input bit clear 0 Output NXXXXXXXX Get Pulse Counter 32 bit counter value M Clear Pulse Counter Unipolar sample analog y control niblle xxx analog value D A output y channel setting O or 1 xxx 12 bit D A output Get receive error count xx current count Clear receive error count PWM xx PWM frequency PWM duty Write EEPROM yy address xx value Read EEPROM yy address in command xx value in reponse Start continuous stream mode Halt continuous stream mode Reset CPU Integrity Instruments Commands and Responses The following table illustrates actual command and response data for an RS 232 interface NOTE USBM100 Series User Manual e All numeric data is represent as ASCII Hexadecimal integers symbol equates to a carriage return decimal 13 hex OxOD Command Sent by Host Response Sent by UO Description V40 1 Module Firmware version 3 0 1000F Input digital port PORT2 bits 0 3 ON PORT2 bits 4 7 OFF Note this command also returns the current digital output Output digital port PORT2 bit 7 OFF bits 0 6 ON Set digital direction PORT2 INPUT bits 0 6 OUTPUT G0080 1 Get current digital direction PORT2 bit 7 INPUT bits 0 6 OUTPUT NOOOOOO0F Get pulse counter Current count
17. ired Example PWM Commands e All numeric data is represent as ASCII Hexadecimal integers symbol equates to a carriage return decimal 13 hex OxOD Host Command Module Response Action P0000 1 PWM off Any duty cycle of 0 disables PWM output P4801F 4 Pil PWM frequency 109 599 Hz PWM duty 10 6 PFESFF 1 Pi PWM frequency 31 327 Hz PWM duty 100 PFE1FE4 Pi PWM frequency 31 327 Hz PWM duty 50 17 Integrity Instruments USBM100 Series User Manual Analog UO Characteristics Characteristic Value A D Converter 0 to 10 Volt input Linearity Error t 1 LSB Gain Error lt 1 LSB Offset Error lt 1 5 LSB Max Input Voltage 10V Analog Operation The analog inputs look like a 100pf capacitor Cin in series with a 560 Q resistor Ron Cin gets switched between and inputs once during each conversion cycle Large external source resistors and capacitances will slow the settling of the inputs It is im portant that the overall RC time constant is short enough to allow the analog inputs to settle completely within the allowed time The voltage on the inputs must settle completely within the sample period Minimizing R source will improve the settling time Sampling Analog Voltage Inputs By far the most common configuration of the 232M100 Series UO modules is to sample voltage values Analog voltage levels are converted to integer digital values Th
18. r MPU contains timed Power On Reset circuitry MPU brownout detection ciruictry built in 0 to 70 32 to 158 F Commercial Temperature Range FR4 7 5Vdc to 15 0 Vdc approx 50 ma nominal current 24 Vdc maximum 100 ma current draw USBM100 Series Features 8 Digital UO lines 8 10 bit Analog Inputs PWM Output 32 bit Pulse Counter 1 Mhz RS 232 Full duplex 232M100 10 bit analog acquisition digital UO lines Integrity Instruments USBM100 Series User Manual Quick Start Instructions You need the following EZTerminal program available free on our website http www integrityusa com An open COMPORT on your PC Power supply PS9J 9VDC 400 ma unregulated A cable to connect your PC C9F9M 6 6 foot serial cable Make these DIP switch settings for 115 200 baud SW1 ON SW2 ON These are factory default settings see page 21 Launch the EZTerminal program 1 2 Double click the icon in whatever area you have put the program Under Settings then choose Comport and select your RS 232 port 115 200 Baud Rate 8 Data Bits NO PARITY and 1 Stop Bits Under Settings now choose Terminal Settings and check the Append LF to incoming CR box and Local echo typed characters check box You may change the color of the transmitted and received characters by going under Settings and selecting Colors then Transmit or Receive and pick the color of your choice LIII
19. r status enabled Continuous Stream Mode Example In this example the UO module EEPROM is configured to take 3 Analog samples and update the Counter status EEPROM Location 0x10 EEPROM Location 0x11 EEPROM Location 0x12 EEPROM Location 0x13 EEPROM Location 0x1A 14 0x03 Take 2 Analog samples 0x82 Sample 1 Unipolar sample CH2 0x85 Sample 2 Unipolar sample CH5 0x87 Sample 3 Unipolar sample CH7 0x01 Pulse Counter Status enabled Integrity Instruments USBM100 Series User Manual Continuous Stream Mode Example continued The following table illustrates the Host Command and I O Module responses for the con tinuous stream example configuration and usage EEPROM Location 0x10 0x03 Take 2 Analog samples EEPROM Location Ox11 0x82 Sample 1 Unipolar sample CH2 EEPROM Location 0x12 0x85 Sample 2 Unipolar sample CH5 EEPROM Location 0 13 0x87 Sample 3 Unipolar sample CH7 EEPROM Location 0x1A 0x01 Pulse Counter Status enabled NOTE e All numeric data is represent as ASCII Hexadecimal integers The symbol J equates to a carriage return decimal 13 hex OxOD Host Sends UO Module Sends W1003 1 W1182 1 W1285 1 W1287 1 W1A01 1 S l S Continuous Stream mode started U2023 1 U5823 1 U5823 1 N0000 0044 1 U2023 1 U5823 1 U5823 1 N0000 0044 1 repeats continually H 1 Continuous Stream mode halted The
20. wire from the terminal strip of the USBM100 unit to the expander module WARRANTY Integrity Instruments warranties all products against defective workmanship and components for the life of the unit Integrity Instruments agrees to repair or replace at it s sole discretion a defective product if returned to Integrity Instruments with proof of purchase Products that have been mis used improperly applied or subject to adverse operating conditions fall beyond the realm of defective workmanship and are not convered by this warranty Copyright 2000 2006 Integrity Instruments All trademarks and or registered trademarks are the property of their respective owners 24
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