PCAN-MicroMod User Manual
Contents
1. Dimension 32 x 35x 14mm 1 1 4 x 1 3 8 x 9 16 Inches Microcontroller Fujitsu MB90F497G CAN connection HS CAN 2 0A B transceiver Philips 82C251 Digital inputs 8 TTL Frequency inputs 4 TTL measuring range 1 Hz 10 kHz maximum dependent on work load yet at least 4 kHz Analog inputs 8 resolution 10 bits reference voltage 5 V input impedance 3 2 kQ Digital outputs 8 TTL Frequency outputs 4 PWM 32 100 Hz 4 10 kHz or 2 Frequency 1 Hz 10 kHz Firmware Configuration via reserved CAN ID 0x7e7 Design and specifications are subject to change without notice2. driver chip e g MAX232 For example this driver chip and the connector for a serial cable could be integrated on a mother board for the MicroMod A facility for setting the MicroMod to programming mode The inputs MO and M2 ofthe MicroMod must be switched according to the table in chapter 3 This could be done with a jumper on a motherboard A facility for resetting the MicroMod The corresponding input Reset_In atthe MicroMod could be switched to GND with a push button The upload software part of the delivered PCAN MicroMod package Do the following to transmit a new firmware 1 Connect the MicroMod or the corresponding motherboard respectively and a serial port RS 232 of your computer 2 Before applying power to the MicroMod make sure that it will start in programming mode Apply power The LED on the MicroMod stays off 4 Make sure that the digital inputs 0 and 1 are inactive Reset the MicroMod 18 PCAN MicroMod User Manual System 6 If not already done unpack the ZIP file with the upload software in a directory of your choice 7 From there start the program flash exe 8 Select Set Environment in order to check that the indicated serial port is corresponding to the actually used one Confirm with OK 9 Following settings are necessary Target Microcontroller MB90F497 G Crystal Frequency 4 MHz 10 Select the firmware file to be transfered field Hex File 11 Start the transfer s
3. pass can be activated Frequencies between 1 Hz and about 10 kHz can be measured Either the pulse width is influenced at a predefined frequency by the incoming CAN messages or the frequency is influenced at a fixed pulse width 50 All digital inputs may be logically connected The result may either be passed on as a CAN message or to a digital output Constant values or statistical data generated by the MicroMod can be put into CAN messages Latter is useful for remote monitoring the MicroMod Analog input data can be adjusted with the help of a curve 15 PCAN MicroMod User Manual System Service Remark Rotary Encoder The service interprets the signals from a manual rotary encoder standard quadrature with 2 bits connected to digital inputs Analog Hysteresis For converting analog to digital signals e g in order to avoid jitter You learn more details on the operation and the application ofthe services in the help to the MicroMod Configuration Tool 16 PCAN MicroMod User Manual System 6 New Alternative Firmware With its integrated microcontroller PCAN MicroMod is flexible at use since the functionality may be adapted or changed through suitable controlling software also called firmware This chapter describes possible alternatives and the procedure for a firmware update 6 1 CANopen Support As an alternative for the standard firmware described in this user manual PEAK System provi
4. You can solve this problem by sending a new configuration Occurs during sending or receiving a configuration via CAN This may be the case after uploading a faulty or incompatible firmware If the MicroMod is in normal or in programming mode for the firmware upload is determined by the status of the MicroMod pins MO and M2 see table in chapter 3 Connection Reserved CAN ID Ox7E7 In order to configure a MicroMod the CAN ID 0x7E7 is used The MicroMod Configuration Tool exchanges the according data with the MicroMod via the CAN bus When designing your CAN make sure not to use the CAN ID 0x7E7 in any way 14 PCAN MicroMod User Manual System 5 3 Overview of Existing Services PCAN MicroMod provides various functions called services being of the following types Inputs Outputs Function units CAN message handling Service Message Settings Internal Variables Digital Input Digital Output Analog Input Frequency Input PWM and Frequency Output Digital Function Constant Value Statistical Data Curve Remark Internal variables are useful for communication between services in principle corresponds to CAN messages It can be indicated for CAN message transmissions which kind of signal change is considered Power up and timeout values can be defined e g at problems with CAN communication The A D value can be adjusted with scale and offset Further more a software low
5. change of a digital input Logical connective of digital inputs Adaptation of analog quantities through characteristic curves Direct transfer of analog quantities onto CAN IDs Direct support of rotary encoders 1 2 Scope of Supply The scope of supply normally consists of the following parts PCAN MicroMod User manual Configuration software running under Windows 98 SE ME 2000 XP PCAN MicroMod User Manual System 1 3 Special Prerequisites for the Operation The following prerequisites must be given so that the PCAN MicroMod can be used properly Circuit board with socket strips for plugging the PCAN MicroMod on e g the Evaluation Board or a so called Motherboard which also is offered by PEAK System For configuring the MicroMod via CAN Windows PC with a PC CAN adapter of the PCAN series latter is part of supply of the Evaluation Kit l PCAN MicroMod User Manual PEAK System 2 Hardware Settings On its upper side the PCAN MicroMod has five positions for solder bridges indicated by the labels 0 to 4 for setups of different functions depending on the used firmware With delivery of the MicroMod version described in this manual the solder bridges are used for setup of a module number This is described more precisely in the following subsection With the optional CANopen firmware other functions are assigned to the individual positions see user manual for the CANopen firmware 2 1 Setting Up the Mod
6. more MicroMods with same module number CAN messages don t have a specific target address unpredictable results could occur during configuration of those MicroMods 2 2 Disconnecting the HS CAN Transceiver If you want to use a CAN communication protocol other than High speed CAN HS CAN the CAN signals from the microcontroller CAN RxD CAN TxD may directly be routed to the wanted CAN transceiver However in this case the HS CAN transceiver must be disconnected from the data transfer This is done by interrupting the RxD line between the microcontroller and the HS CAN transceiver l PCAN MicroMod User Manual PEAK System on the MicroMod For this you must unsolder the 0 Ohm resistor on the MicroMod below and right to the label 4 Figure 2 Position of the 0 Ohm resistor RxD line to the HS CAN transceiver If you want to use the HS CAN transceiver on the MicroMod later on just make a solder bridge at the mentioned position l PCAN MicroMod User Manual PEAK System 3 Connection The PCAN MicroMod has two double strips J1 J2 for connection each with 26 pins first column of the following table Therefore the MicroMod easily can be plugged onto a mother board with corresponding socket strips either a board from the product line of PEAK System or a proprietary development For better orientation during the connection procedure the MicroMod has a white marker on the upper left corner pin J2 2 Fig
7. 25 56 Vcc Power Supply 5 V J1 26 24 49 GND Ground Digital l PCAN MicroMod User Manual PEAK System Pin Pin pC Name Function MicroMod J2 1 48 DO7 Output Digital TTL J2 2 47 DO 6 Output Digital TTL J2 3 46 DO5 Output Digital TTL J2 4 45 DO 4 Output Digital TTL J2 5 44 DO3 Output Digital TTL J2 6 43 DO2 Output Digital TTL J2 7 42 DO 1 Output Digital TTL J2 8 41 DOO Output Digital TTL J2 9 40 FO 3 Output Frequency PWM J2 10 39 FO 2 Output Frequency PWM J2 11 38 FO 1 Output Frequency PWM J2 12 37 FO 0 Output Frequency PWM J2 13 24 49 GND Ground Digital J2 14 N C Not Connected J2 15 36 FI3 Input Frequency TTL J2 16 35 FI2 Input Frequency TTL J2 17 34 FI 1 Input Frequency TTL J2 18 33 FIO Input Frequency TTL J2 19 32 DI 7 Input Digital TTL J2 20 31 DI 6 Input Digital TTL J2 21 30 DI5 Input Digital TTL J2 22 29 DI 4 Input Digital TTL J2 23 28 DI 3 Input Digital TTL J2 24 27 DI2 Input Digital TTL J2 25 26 DI 1 Input Digital TTL J2 26 25 DIO Input Digital TTL PCAN MicroMod User Manual System 4 Software Installation With the enclosed Windows software MicroMod Configuration Tool you can create edit and then transfer configurations comfortably to one or more MicroMods via CAN For transmission the Configuration Tool needs access to aCAN For this purpose the computer must have a
8. Manual System 1 Introduction The PCAN MicroMod is designed for quick and easy access to distributed I O systems Its kernel is the microcontroller MB90 F497 from Fujitsu With an integrated CAN bus controller and the analog and digital inputs and outputs it is an inexpensive solution for small intelligent nodes The firmware available at delivery allows you to completely configure the MicroMod via CAN by creating a configuration with a graphical user interface on your PC and then sending this configu ration to the module You can also use an alternative firmware e g for the operation under CANopen or create own programs for the integrated micro controller Q Note The functionality described in this manual refers to the standard firmware available with delivery For the operation with an alternative firmware please study the corresponding documentation See also chapter 6 New Alternative Firmware starting on page 17 1 1 Properties at a Glance PCAN MicroMod Strips for piggyback connection 8 digital inputs TTL levels 8 digital outputs TTL levels 8 analog inputs 10 bit reference 5 V 4 PWM or 2 frequency outputs with a range of 1 Hz to 10 kHz PCAN MicroMod User Manual System CAN connection via transceiver Philips 82C251 Standard firmware Up to 32 MicroMods addressable for configuration within aCAN regardless of that normal operation with CAN IDs Transmission of CAN messages periodically or at level
9. PC CAN adapter ofthe PCAN series e g PCAN USB However you can create and edita configuration with the Configuration Tool on a computer without PCAN environment and transfer it with another computer to the corresponding MicroMod in a CAN later Do the following to setup the software 1 Make sure that you are logged in as user with Administrator priviliges when using an NT based Windows like Windows XP not necessary later on at normal use of the software 2 Insert either the delivered CD ROM or the first of two diskettes in the corresponding drive 3 Ifyou are using a CD ROM the setup program will start by itself If this doesn t happen or if you are using a diskette please start the program Setup exe from the respective medium You will be guided through the installation process by the setup program You can find further information about the use of the MicroMod Configuration Tool in the help which you can invoke in the program 13 PCAN MicroMod 5 Operation 5 1 LED Status Flashing at 1 Hz Flashing at 2 Hz Normal operation Invalid configuration existing Flashing at 5 Hz Configuration mode Internal MicroMod error Continuously lighting Continuously off No power supply MicroMod in programming mode 5 2 User Manual System Status LED Operation Status Description This may be the case after a firmware update because the new firmware is possibly expecting another data format
10. PCAN MicroMod Universal I O Module with CAN Interface User Manual System PCAN MicroMod User Manual System Products taken into account Product Name Item Number Model PCAN MicroMod IPEH 002080 Firmware 1 3c Last Updates October 27 2005 Fully revised edition February 28 2006 Text corrections Windows is a registered trademark of Microsoft Corporation in the United States and other countries All other product names mentioned herein may be the trademarks or registered trademarks of their respective companies Furthermore and are not mentioned in each case in this manual 2006 PEAK System Technik GmbH PEAK System Technik GmbH Otto R hm Stra e 69 D 64293 Darmstadt Germany Phone 49 0 6151 8173 20 Fax 49 0 6151 8173 29 www peak system com info peak system com PCAN MicroMod User Manual System Contents 1 Introduction 4 1 1 Properties at a Glance 4 1 2 Scope of Supply 5 1 3 Special Prerequisites for the Operation 6 2 Hardware Settings 7 2 1 Setting Up the Module Number 7 2 2 Disconnecting the HS CAN Transceiver 8 3 Connection 10 4 Software Installation 13 5 Operation 14 5 1 Status LED Operation Status 14 5 2 Reserved CAN ID 0x7E7 14 5 3 Overview of Existing Services 15 6 New Alternative Firmware 17 6 1 CANopen Support 17 6 2 Creating Own Firmware 17 6 3 Firmware Upload 18 7 Frequently Asked Questions FAQ 20 8 Technical Specifications 21 PCAN MicroMod User
11. des a CANopen firmware for the PCAN MicroMod free of charge With this the MicroMod falls into the category of off the shelf CANopen generic I O devices The whole CANopen software package implements the CANopen standard DS301 Application Layer and Communication Profile version 4 02 and specifically the device profile DS401 Device Profile for Generic O Modules version 2 1 Therefore the correspondingly set up MicroMod can be directly used as standardized CANopen generic O module Please contact us regarding the CANopen firmware contact information on page 2 6 2 Creating Own Firmware The PCAN MicroMod contains the microcontroller MB90 F497 from Fujitsu The C compiler available to this Softune Workbench allows you to create own firmware for the PCAN MicroMod Homepage for the controller http www fme gsdc de gsdc htm products mb904950 htm 17 PCAN MicroMod User Manual System 6 3 Firmware Upload The firmware available at delivery can change regarding functionality and error correction so that an update becomes necessary On the other hand perhaps you would like to use an alternative firmware for the MicroMod In both cases you must transmit the desired firmware to the MicroMod via a serial port upload For a firmware upload you need A serial port in a computer running under Windows The V24 signals for serial data communication see table in chapter 3 Connection can be transmitted to an appropriate
12. equence by clicking on Full Operation D E B P R It lasts for approximately one minute Subsequent a message is shown confirming the proper process 12 Disconnect the power from the MicroMod 13 Setup the normal operation mode Run mode for the MicroMod again Note If after updating the standard firmware the LED on the MicroMod doesn t blink with 1 Hz anymore please refer to section 5 1 Status LED Operation Status for possible causes i Tipp An easy way to do a firmware upload is using the 3 Evaluation Board from the optionaly available MicroMod Evaluation Kit The Evaluation Board has necessary connectors and switches 19 PCAN MicroMod User Manual System 7 Frequently Asked Questions FAQ Problem Question Answer The MicroMod doesn t Apart from the necessary power start supply the MicroMod must be set up for normal operation mode Run mode This is done with the inputs MO and M2 see table in chapter 3 Connection Is the source code of the No enclosed firmware freely accessible for customize tions Can the PCAN MicroMod Yes We offer a special firmware also be usedasa available for free The software for a CANopen node firmware upload is already contained in the scope of supply 20 l PCAN MicroMod User Manual System 8 Technical Specifications Supply voltage 5 V DC Current consumption max 160 mA Operating temperature 40 85 C 40 185 F
13. ule Number The module number is used for the identification of a single MicroMod at the CAN bus when configurations are sent and received The MicroMod doesn t use the module number for the reception or transmission of data during normal operation In the delivery state the MicroMod has the module number 0 no solder bridge set Figure 1 Solder bridge positions on the MicroMod The module number is put together as follows Each solder bridge position represents a bit of a binary number position closed by L7 PCAN MicroMod User Manual System solder bridge bit set Position 0 is the LSB and position 4 the MSB of this number Since there are five bits module numbers between 0 and 31 can be set Solder bridge position 0 LSB 1 2 3 4 MSB Binary digit 00001 00010 00100 01000 10000 Decimal equivalent 1 2 4 8 16 Example In Figure 1 solder bridges are on positions 0 1 and 3 The corresponding binary number is 01011b reversed order of positions being equivalent to decimal 11 the module number To do it the other way around If you like to assign the module number 22 to a MicroMod you would do following steps 1 22 1 16 0 8 1 4 1 2 0 1 10110b 2 MSB position 4 gt 10110 LSB position 0 3 Solder bridges to be set 1 2 4 0 and 3 stay open Q Note Every MicroMod connected to one CAN bus should have a unique module number Although it wouldn t be a problem during normal operation to have two or
14. ure 3 Connection strips and positioning marker upper left corner In the second column of the table the corresponding pin of the microcontroller is listed if a direct connection to the MicroMod pin exists l PCAN MicroMod User Manual PEAK System Pin Pin uC Name Function MicroMod J1 1 4 AIN 1 Input Analog 10 bits 0 to Vref J1 2 3 AINO Input Analog 10 bits 0 to Vref J1 3 6 AIN 3 Input Analog 10 bits O to Vref J1 4 5 AIN 2 Input Analog 10 bits 0 to Vref J1 5 8 AIN 5 Input Analog 10 bits 0 to Vref J1 6 7 AIN 4 Input Analog 10 bits 0 to Vref J1 7 10 AIN 7 Input Analog 10 bits 0 to Vref J1 8 9 AIN 6 Input Analog 10 bits 0 to Vref 31 9 12 Vref Reference Voltage Analog 2 7 to 5 V J1 10 11 Avcc Power Supply Analog J1 11 24 49 GND Ground Digital J1 12 13 AGND Ground Analog J1 13 63 CAN TxD CAN Transmit TTL J1 14 64 CAN RxD CAN Receive TTL J1 15 CAN_H Differential HS CAN Signal CAN_H J1 16 CAN_L Differential HS CAN Signal CAN_L J1 17 62 TxD Serial V24 Transmit J1 18 60 RxD Serial V24 Receive J1 19 51 SCL SPI or I2C Serial Clock function dependent on firmware J1 20 50 SDO SPI or SDA __ Serial Data Out Serial Data 12C J1 21 19 Reset_In Reset low active J1 22 52 SDI SPI Serial Data In J1 23 18 MO Run mode 5 V internal pull up Prog mode OV J1 24 21 M2 Run mode OV Prog mode 5 V internal pull up J1
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