RPC-150 USER`S MANUAL
Contents
1. Figure 1 1 System layout Page 2 RPC 150 CHAPTER 1 CHAPTER 2 INTRODUCTION The RPC 150 is ready to program as soon as you connect it to a terminal or PC and apply power This chapter describes what is needed to get a sign on message and begin programming Requirements for uploading and downloading programs is discussed A Where to go from here section directs you to the chapters to read in order to use the various capabilities of the RPC 150 Finally a troubleshooting section helps out on the most common problems OPERATING PRECAUTION The RPC 150 is designed to handle a wide variety of temperature ranges and operating conditions These characteristics require using CMOS components CMOS is static sensitive To avoid damaging these components observe the following precautions before handling the RPC 150 1 Ground yourself before handling the RPC 150 or plugging in cables Static electricity SETUP AND OPERATION can easily arc through cables and to the card Simply touching a metal part on your PC can greatly reduce the amount of static Do not insert or remove components when power is applied While the card is a 5 volt only system other voltages are generated on the card Applying them in the wrong sequence can destroy a component EQUIPMENT You will need the following equipment to begin using the RPC 1502. J5 Keypad Figure 9 1 Keypad connector PROGRAMMING EXAMPLE The following example sets up CAM BASIC to scan a 16 position keypad The results are echo ed to the display and the speaker is sounded when a key is pressed 10 CONFIG PIO 0 0 1 1 0 512 20 Optionally change keypad character B 30 to the letter M 40 POKE SYS 8 7 77 60 ON KEYPADS GOSUB 500 70 PRINT Enter a number 100 loop for this example 110 GOTO 100 500 AS KEYPADS 0 510 IF A C THEN clear beep 520 IF AS CHR 13 THEN enter 530 PRINT A 540 BS BS A 560 RETURN 600 clear beep 610 B 630 DELAY 4 650 PRINT CHR 12 660 RETURN CHRS 12 700 enter 710 FL 1 730 RETURN Program explanation Lines 10 80 set up the parameters for the keypad Lines 500 to 730 process the key press If a C or is pressed it is an exception and is handled that way Otherwise the character is displayed and stored Lines 700 to 730 process the enter key The enter flag FL is set to a 1 to indicate to another part of the program that B has complete data The KEYPA D 0 function returns a single character string that has been assigned to a particular key Characters are assigned using the SYS 8 statement KEYPAD PORT PIN OUT J5 The keypad port uses port C from an 82C55 Lower port C is an input Upper port C is output The table below lists J5 s pin out 82C55 port and bit and its intende
3. 16 Connector pin out J2 16 Connector pin out J3 lien 17 COMMANDS lees 17 Chapter 7 Calendar Clock DESCRIPTION 45 223 bae exo 18 INSTALLATION i i elc 18 SETTING DATE ANDTIME 18 COMMANDS lee 18 Chapter 8 Keypad Port INTRODUCTION ess 19 PROGRAMMING EXAMPLE 19 KEYPAD PORT PIN OUT J5 19 COMMANDS eee 20 Chapter 9 Speaker DESCRIPTION sse 21 Connecting a speaker 21 SYNTAX uu de DV ene Mota 21 Programming example 21 Technical Information ELECTRICAL vaarana a a a Sth ee See 22 MECHANICAL 22 MEMORY AND I O MAP 22 JUMPER DESCRIPTIONS 22 Serial Port pinout 23 CHAPTER 1 DESCRIPTION The RP C 150 is an embedded controller with a built in Basic language Several features make it suitable as a stand alone unit Built in CAMBASIC programming language autoruns at power up On card EPROM programmer saves programs to 30K Keypad port for operator interface The 16 position keypad is automatically scanned and is read using the KEYPAD command Two RS 232 serial ports are programmable for baud rate parity length and stop bits Both inputs and outputs have a 256 byte buffer 47 general purpose digital I O Imes 7 of which are high current outputs These lines can connect to another opto rack Built in EPROM programmer and CAM BASIC
4. If you want to do this Save a program Autoruna program Know more about serial ports Battery backing up RAM U Configure digital I O lines se RAM to save variables Get switch status U Connect an external opto rack se high current outputs Installing calendar clock module U Speaker port sing a keypad OWAmAANIDAADA AN fH W Ww Also refer to the table of contents for a listing of other functions RPC 150 Page 6 CHAPTER 2 TROUBLESHOOTING You probably turned to this section because you could not get the sign on message If you are getting a sign on message but can t enter characters then read section 5 below The following are troubleshooting hints 1 Check the power source Power is 5 0 25 volts Make sure it is a clean 5 volt source If it dips intermittently to about 4 5 volts due to switching noise or ripple the CPU may read an instruction incorrectly and consequently crash The power supply must be able to go from 0 to 5 volts in under 100 ms If it takes longer than this the card may come out of reset too soon and the CPU will not operate correctly The best way to reset a card is to push the reset button When powering off then on make sure the supply gets to at least 0 7 volts before turning on the supply The reset circuit must discharge completely for a clean reset This is a problem on large linear supplies 2 Check the COM 1 port COMI is also known as J1 Remove the co
5. RPC 150 embedded controller PC with a serial port and communications program such as PC SmartLINK or Terminal VTC 10 serial cable 5V 300 ma power supply The CAMBA SIC Programming Manual is strongly recommended Refer to Chapter 4 Serial Ports for wiring information to make your own cable Jumper PROGRAM d Reset Switch COM 1 Console SYSTEM programming RAM U Primary CAMBASIC COM 2 U USER n J2 J5 F Digital 1 0 i J3 Power Keypad Figure 2 1 RPC 150 Connector Layout Page 3 SETUP AND OPERATION FIRST TIME OPERATION Become familiar with the locations of the connectors before getting started See Figure 2 1 RPC 150 jumpers have been set at the factory to operate the system immediately For first time operation do not install any connectors or parts unless specified below Jumpers should be kept in default positions 1 The RPC 150 needs 5 0 25 volts at less than 100 ma Any well regulated supply that supplies this will work Be careful when using switching power supplies Some supplies do not regulate properly unless they are adequately loaded The power supply should have a rise time to 5 volts in under 100 ms If it takes longer than this you may have to manually reset the card Most power supplies meet this requirement Make sure power is off Connect the power supply to
6. These pull ups makes interfacing to switches and open collector TTL devices easy See Inter facing to Switches and other devices below High current output Eight lines at J2 can be used as high current drivers These outputs will switch loads to ground Outputs are controlled by Port B on the 82C55 Its address is 513 Port B bits 0 6 are used to control the high current port Logic outputs from this port are inverted That is when a l is written to the high current port the output is switched on and goes low Page 14 RPC 150 CHAPTER 6 The output driver chip U 13 can be replaced with a DIP shunt jumper so it is like the other lines at J2 Install the jumper so U13 pin 1 goes to pin 18 NOTE Outputs at the high current lines are not compatible with TTL logic levels and should not be used to drive other logic devices Each of the high current outputs can sink 100 ma at 50V WARNING External supplies using the high current outputs must be tied to J2 pin 26 and NOT the power connector Failure to do so can produce a ground loop and cause erratic operation The ther mal time constant of the package is very short so the number of outputs that are on atany one time should include those that overlap even for a few milliseconds Incandescent lamps have a cold current of 11 times its operating current Lamps requiring more than 50 ma should not be used Protection diodes must be used with inductive loads Refer
7. Output high volts 2 4V minimum sink or source at rated current All digital input lines are TTL compatible High current output at J2 7 of the 24 lines can drive up to 500 ma at 50V Refer to CHAPTER 6 DIGITAL AND OPTO PORTS for limitations Keypad input 8 lines accept a 16 position matrix keypad Scanning and debounce performed in CAMBASIC Serial ports Two RS 232D serial ports All have RxD and TxD lines COMI has only these lines COM also has CTS and RTS line Baud rates from 600 to 38 4K 7 or 8 data bits parity even odd or none 1 or 2 stop bits TECHNICAL INFORMATION EPROM and programmer Accepts 29C256 or equivalent EPROM Size 32K Speed 200ns or faster Power requirements 5VDC 5 at 100 ma RS 232 voltages generated on card Current consumption does not include any opto modules or other accessories MECHANICAL Size 4 5 x 6 0 Maximum height 0 675 no cables installed Mounting holes 4 each corner Hole size is 0 156 dia See drawing MEMORY AND I O MAP Memory Description Address CAMBASIC U2 amp 00000 amp 07FFF RAM UI amp 08000 amp OFFFF 1 O J3 Digital amp 0000 amp 0003 J2 Digital amp 0200 amp 0203 Keypad amp 0202 amp 0202 amp 0080 amp 00BF amp 0300 amp 7FFF Internal processor Program EPROM U3 Only I O address amp 8000 to amp FFFF are available off card No memory addresses are available off card JUMPER DESCRIPTIONS A after a j
8. Page 12 RPC 150 CHAPTER 5 STORING VARIABLES IN RAM The term variables in this context includes numbers strings arrays recipes and formulas as applied to your application Programs CAMBASIC variables and variables you POKE and P EEK to are from 8000H to FFFFH The program and basic number variables A B 15 ect are on top of the program and are cleared on reset String variables e g c are below the stack The stack requires 255 bytes and string space will depend upon how much you CLEAR ed on power up If you do not use the CLEAR statement assume 500 bytes are available for strings Data you peek and poke to must be between the end of number variables and start of strings The procedure to determine the safe area to Poke variables follows First download and run your program What you want to do is force the basic to allocate space for most all of the variables in your program Next exit your program and perform a PRIN T SYS 2 SYS 1 in the immediate mode This will print out the address for the bottom of the stack and top of the program with variables Subtract the number used in your CLEAR statement from the first number printed If you did not use the CLEAR statement subtract 500 In case your program did not execute completely you may want to add 500 to the second number This range is where you can POKE to Many times you will start with a very small program and add to it In this case the above proce
9. software save programs for autorun on power up or reset The RPC 150 uses a 64180 CPU operating at 9 Mhz It operates stand alone or on a network using RS 485 adapter Its 4 5 x 6 size makes it easy to mount in a NEMA box CAM BASIC programming language is standard This language was adapted for the RPC 150 for control and data acquisition applications A complete description of CAMBASIC commands is in the CAMBA SIC Programming Guide Program development can take place on your PC using your word processor or on the RPC 150 Programs from your PC can be downloaded using PC SmartLINK or other serial communication program MANUAL ORGANIZATION This manual pro vides all the infor mation required to install configure and use the features on the RPC 150 This manual assumes you are familiar with some type of BASIC programming software The syntax used by CAM BASIC is similar to Microsoft s GW or QuickBASIC If you are not experienced with BASIC software you may want to refer to books and training OVERVIEW programs available through your local software store The CAMBASIC Programming Manual has information and examples for all commands NOTE The RPC 150 uses a Hitachi Z180 processor Additional information can be obtained from Hitachi or a local representative Order hardware manual U77 software manual U92 MANUAL CONVENTIONS Information appearing on your screen is shown in a different type Example CAMBASI
10. M on the opto rack COMMANDS OPTO Reads opto module status OUT Writes a byte to an I O address The following tables shows the CAMBASIC commands PULSE Reads or writes a pulse at a port used for digital I O See also ON BIT ON COUNT ON INP and related Comm and Function statements BIT Function returns status of bit at an VO address BIT Comm and sets a bit at an I O address CONFIG PIO Configures J3 I O port INP Returns a byte from an I O address LINE Returns status of a line LINE Sets line high or low OPTO Sets an opto module output RPC 150 Page 17 CALENDAR CLOCK DESCRIPTION The RPC 150 has a battery backed Calendar clock option using the DS 1216EM When used in conjunction with the DATE and TIM E commands the current date and time can be set and read The DS 1216EM is accurate to 1 minute month at 25 C Battery life is a minimum of 5 years at 25 C and 2 years when at 50 C INSTALLATION The real time clock is installed in socket U3 Remove the IC in U3 Install the DS 1216EM in U3 Install the IC previously removed into the top of the DS 1216EM CT U3 Calendar clock Figure 7 1 Calendar clock installation Page 18 RPC 150 CHAPTER 7 SETTING DATE AND TIME The clock must be turned on before it is used This need be done only once To turn on the clock type CONFIG CLOCK ON The date and time can be set while runni
11. Opto channel is the position as marked on the MP S xx board The channel number is preceded by a M character on the MPS board When connecting J2 to an opto rack add 100 to the number on the rack J2 has a high current output on port B channels M8 M15 Replace U13 with a shunt jumper to operate norm ally You will have to group your inputs and outputs on the rack to make best use of the space See Digital I O Program ming Example later in this chapter for information about using these commands Pay attention to how LINE differs from OP TO in addressing and polarity To turn on an opto module an output line must be low A module is turned off by writing a 1 to a channel Page 15 DIGITAL LINES The logic at J2 port B with the high current outputs installed is just the reverse A 1 at a line causes the module to turn ON The OPTO command sets the output to the proper polarity when U13 is replaced with a dip shunt jumper High current outputs at J2 port B are optionally configurable as TTL I O by replacing U13 with a DIP shunt jumper This will keep the logic compatible with ports A and C If opto channels 0 6 are used as inputs then U13 must be replaced by a DIP shunt jumper Interfacing to switches and other devices The STB 26 terminal board provides a convenient way of interfacing switches or other digital I O devices Lines at J2 and J3 are connected to the STB 26 with a CMA 26 ribbon cable Digital devices are then
12. baud rates Downloading a program requires transmitting an ASCII file CAMBASIC is an incremental line compiler As you type in or download a line CAMBASIC compiles that line The time to compile a line depends upon its complexity and how many line of code have been entered CAM BASIC must finish compiling a line before starting the next one When a line is compiled a gt character is sent by the card This should be your terminal programs pacing character when downloading a program If your communications program cannot look for a pacing prompt set it to delay transmission after each line is sent A 100 ms delay is usually adequate but your CAMBASIC program may be long and complex and require more time A result of a short delay time is missing or garbled program lines CAM BASIC sends out escape sequences to clear the screen This sequence may appear as on your screen Usually this is not a problem COM 1 on the RPC 150 does not recognize the CTS or RTS lines The CTS line is NOT pulled high on the RPC 150 The effect of not recognizing these lines is your PC or terminal cannot hold off the RPC 150 s transmission Converse the RP C 150 cannot hold off the host from sending it data Set your terminal program to not recognize or use the CTS and RTS lines Editing programs and program ming hints Files uploaded or downloaded are simply ASCII DOS text files No special characters or control codes are used You may cr
13. characters to be sent out using PRINT without slowing down program execution However if the PRINT buffer fills program execution is suspended until the buffer em pties Both ports have a 256 character input buffer When more than 256 characters have been received excess ones are ignored The baud rate parity data length and stop bit length are changed using the CONFIG BAUD command COM 1 m Console rogas Primary CT CT CoM2 E CT Figure 4 1 Serial ports COMI SERIAL PORT COM is Jl and is called the Console port on the card This port uses a VTC 10 serial cable to connect external serial devices to the port The cable consists of a 10 pin IDC connector wired to a DB 9 connector The connector plugs directly into a 9 pin serial port connector on a PC Page 10 RPC 150 CHAPTER 4 This port is normally used for program ming During run time it may be used as a general purpose serial port When used for programming or with the INPUT statement it will accept ASCII character values from 0 to 127 When used with the INKEY and COM functions it will return ASCII values from 0 to 255 COM2 SERIAL PORT COM 2 is an RS 232 port It also uses a VTC 10 serial cable described above COM2 is identical to COMI except that COM 2 has 2 hardware handshaking lines CTS and RTS When RTS goes low the RPC 150 is held off from transmitti
14. has been configured to ignore the lt ESC gt key To prevent autorun remove jumper W1 17 18 Later if you wish to SAVE or LOAD a program reinstall this jumper You may do so even if the power is on and a program is running Remember to discharge any static electricity before installing or removing the jumper LOADING A PROGRAM There are times when you may wish to temporarily modify or otherwise test out a change to a program Since the program is loaded into RAM modifications can be made without affecting the program in EPROM If you find out that modifications are not desirable or did not work youcan restore the original program to RAM using the LOAD command To modify a program before running it on power up remove jumper W1 17 18 first Power up or reset the card Re install jumper W1 17 18 Type load You can now list the program and otherwise make modifications SAVING DATA TO EPROM Additional data such as strings and constants can be saved to the EPROM in U3 An external programmer is used to save data to the EPROM Data cannot be saved to U3 through CAMBASIC Data is saved at the top of the EPROM memory The upper 2K bytes are always available as RAM memory size absolutely limits the program to 30K If you need more than 2K bytes of data you can save data on top of the CAMBASIC program in U3 A good way to determine how much mem ory is available is to perform a P RINT SY S 0 in the immediate mode prog
15. outputs Port C can be programm ed as one group of 8 inputs or outputs or as two groups of four lines upper and lower C The four lines in upper and lower C can each be program med as all inputs or outputs Port B bit 7 on J2 must be used as an output When a line is configured as an output it can sink a maximum of2 5 ma at 0 4V and can source over 2 5 ma at 2 4V Outputs sink 15 ma at 1 0V J2 and J3 are accessed using CAMBASIC LINE OPTO INP and OUT statements LINE reads or writes to a port based on the connector pin number OPTO reads or writes to an opto module based on its position in an MPS opto rack IN P and OUT access a byte of data at a port The base address for J2 is 512 and J3 is 0 when using CONFIG PIO INP and OUT statements CONFIG PIO statement is used to configure the 8255 lines Upon reset lines are configured for inputs Use CONFIG PIO to configure lines for outputs and inputs J2 and J3 are accessed using LINE or OPTO statements according to the table below Connector LINE OPTO rack No terminal position J3 1 25 0 23 J2 101 124 100 122 J2 port B is connected to a high current sink through U13 See High current output later inthis chapter Line 107 is not available J2 port C is shared with the keypad port J5 If you are using a keypad through J5 these 8 lines are not available Pull up resistors Digital I O lines at J2 and J3 are pulled up to 5 volts through a 10K resistor pack
16. that area of RAM Use the SYS 1 and CLEAR Clears strings and allocates string space SYS 2 statements to do this SYS 1 returns the low PEEK Returns a byte memory location while SYS 2 500 returns the upper DPEEK Returns a 16 bit value location Run the program first to make sure variable PEEK Returns a string memory has been allocated before running these SYS FPEEK Returns a floating point number commands Failure to do so may result in address POKE Stores a byte DPOKE Stores a 16 bit value POKE Stores a string FPOKE Stores a floating point number returned that are not really free for assembly language programs There are several ways to put a program in memory depending upon your application 1 Use DATA statements and POKE the code into segment 0 RAM 2 Write a program to download code Some applications are connected to a larger system which initializes its systems Using INKEY or COM code is received and then poked into memory using POKES 3 Readthe code from the EPROM U3 using INP and transfer it to RAM using POKE Y ou would have to use an external programmer to place the code above CAMBASIC code In all cases it is best to load code into RAM from a secure source Even though RAM is battery backed over time there is the possibility it could be corrupted Below is an example of loading and running an assembly language program 100 FOR N amp FBOO TO amp FBOC 110 READ A 120 POKE N A 130 NE
17. to figure 6 2 Supply to high current output Figure 6 2 Inductive load protection Do not parallel outputs for higher drive This could result in damage since outputs will not share current equally Interfacing to an opto module rack J2 and J3 I O lines can be interfaced to an MPS 8 16 DIGITAL LINES or 24 position opto module rack Lines not going to an opto module connect to a screw terminal on the MP S XX series boards This feature allows you to connect switches or other TTL type devices to the digital I O lines The MPS XX series boards accept G4 series modules Use the OPTO command to access and control G4 opto modules The LIN E command is used to access individual lines on the STB 26 or MPS X X board A CM A 26 connects J2 and J3 on the RPC 150 to the MPS XX board Cable length should be less than 2 feet for the 8 position rack and 18 inches for the 16 and 24 positions Excessive cable lengths cause a high voltage drop and consequently unreliable operation Connect 5V and ground to the opto racks You must configure the 8255 ports for outputs using the CON FIG PIO statement Use the following table to determine the corresponding opto channel for a particular 82C55 port Opto 82C55 Connector Addr channels port M100 M 103 Lower C J2 514 M104 M 107 Upper C J2 514 M108 M 115 A J2 512 M116 M 122 B J2 513 M123 not available M0 M3 Lower C J3 2 M4 M7 Upper C J3 2 M8 M 15 B J3 1 M16 M 23 A J3 0
18. 6 bytes in the serial buffer at one time SERIAL PORT FILE NUMBERS CAM BASIC references the serial I O ports by file numbers similar to DOS The following table shows the corresponding file number to serial I O port and how they are used with the various ports Description File Examples COMI 1 PRINT Hello PRINT 1 Hello INPUT A INPUT 1 A A INKEYS 1 COM2 2 PRINT 42 Hello INPUT 2 A A INKEYS 2 COMI is J1 the console port COM2 is J4 the primary port COMMANDS The following isa list of CAM BASIC commands used for serial I O Variations for many commands not listed here These commands and functions are explained in the CAMBASIC Programming Manual RPC 150 Comm and CLEAR COM COM CONFIG BAUD CONFIG COM SERIAL PORTS Function Clears serial input buffer Returns string from buffer Sets serial port parameters Configures port for ON COM n interrupt INKEY Returns a character from the serial buffer INPUT Receives string from port LIST Outputs program listing ON COM Calls subroutine on serial input PRINT Outputs data in various form ats TAB Tabs to predetermined positions SERIAL CABLE PIN OUT The following is the pin out between the IDC connector for the SBS 150 and the DB 9 connector to the PC or terminal IDC DB 9 Description 1 4 DCD 2 3 RXD 3 2 TXD 4 1 DTR 5 5 Ground 6 n c DSR 7 8 CTS out 8 7 RTS in 9 n c 5 V 10 n c RI J1 and J4 connector pin o
19. C tm c 1985 93 Octagon Systems Corporation Remote Processing Corporation All rights reserved Bytes Free 27434 Symbols and Terminology NOTE Text under this heading is helpful information Itis intended to act as areminder of some interaction with another part of the manual or device that may not be obvious WARNING Information under this heading warns you of situations which might cause catastrophic or irreversible damage W Denotes jumper block pins lt XxXx gt Paired angle brackets are used to indicate a specific key on your keyboard For example lt esc gt means the escape key BASIC uses the decimal convention for designating addresses and data There are times however when hexadecimal notation is more convenient to use The hexadecimal notation used in this manual and by CAM BASIC is the ampersand character amp before the number A amp 8C stands for 8C hexadecimal Page 1 OVERVIEW TECHNICAL SUPPORT If you have a question about the RPC 150 or CAM BASIC used on it and can t find it in this manual call us and ask for technical support When you call please have your RPC 150 and CAMBASIC manuals ready Sometimes it is helpful to know what the RPC 150 is used for so please be ready to describe its application as well as the problem Phone 303 690 1588 FAX 303 690 1875 PC Host Power Supply RPC card
20. ONTENTS Chapter 1 Overview DESCRIPTION 4 32946 eee g Ya by aed Ge bees MANUAL ORGANIZATION MANUAL CONVENTIONS Symbols and Terminology TECHNICAL SUPPORT Chapter 2 Setup and Operation INTRODUCTION OPERATING PRECAUTION EQUIPMENT FIRST TIME OPERATION Using a PE cake ee Bh ed eo Using a Terminal PC or Terminal UPLOADING AND DOWNLOADING PROGRAMS Uploading programs Downloading programs Other communications software Editing programs and programming hints WHERE TO GO FROM HERE TROUBLESHOOTING Chapter 3 Saving Programs INTRODUCTION SAVING A PROGRAM AUTORUNNING 0 0 PREVENTING AUTORUN LOADING A PROGRAM SAVING DATA TO EPROM COMI SERIAL PORT COM2 SERIAL PORT ACCESSING SERIAL BUFFERS SERIAL PORT FILE NUMBERS COMMANDS eee SERIAL CABLE PIN OUT Chapter 5 Data Memory INTRODUCTION BATTERY BACKUP STORING VARIABLES IN RAM ASSEMBLY LANGUAGE INTERFACE COMMANDS Page ii RPC 150 Chapter 6 Digital Lines INTRODUCTION a 14 DIGITAL I O PORT 14 Pullup resistors 0 14 High current output 14 Interfacing to an opto module rack 15 Interfacing to switches and other devices 16 Configuring digital I O lines 16 Digital I O programming example
21. RPC 150 USER S MANUAL Copyright 1993 Remote Processing Corporation All rights reserved However any part of this document may be reproduced with Remote Processing cited as the source The contents of this manual and the specifications her ein may change without notice TRADEMARKS CAMBASIC and PC SmartLINK are trademarks of Octagon Systems Corporation Microsoft BASIC is a trademark of M icrosoft Corporation Remote Processing Corporation 7975 E Harvard Ave Denver CO 80231 Ph 303 690 1588 Fax 303 690 1875 www rp3 c om NOTICE TO USER The infor mation contained in this manual is believed to be correct However Remote Processing assumes no responsibility for any of the circuits described herein conveys no license under any patent or other right and make no representations that the circuits are free from patent infringement Remote Processing makes no representation or warranty that such applications will be suitable for the use specified without further testing or modification The user must make the final determination as to fitness for a particular use Remote Processing Corporation s general policy does not recom mend the use of its products in life support or in applications where the failure or malfunction of the Install redundant or backup safety systems as appropriate to the application board may threaten life or cause injury P N 1193 Revision 1 1 RPC 150 Page i TABLE OF C
22. XT 900 DATA amp DB 2 amp 47 amp E6 amp FE amp D3 910 DATA 2 amp 78 amp F6 1 amp D3 2 amp C9 RPC 150 Page 13 CHAPTER 6 DIGITAL LINES INTRODUCTION Digital I O lines are used to interface with op to module racks switches low current LED s and other TTL devices The RPC 150 has 47 of these lines available through J2 and J3 Seven of these lines are high current outputs capable of sinking 75 to 200 ma Eight lines on J2 are shared by the keypad connector J5 When the keypad is used 8 of the 47 lines are not available Eight 16 or 24 position opto racks are connected to J2 or J3 These opto racks accept G4 series opto modules G4 series opto modules are used to sense the presence of AC or DC voltages or switch them Maximum switching current is 3 amperes WARNING Apply power to the RPC 150 before applying a voltage to the digital I O lines to prevent current from flowing in and damaging devices If you cannot apply power to the RPC 150 first contact technical support for suggestions appropriate to your application High ure pat lt Hf H Digtal 10 J B Figure 6 1 Digital I O DIGITAL I O PORT Digital I O lines on the RPC 150 are supplied by an 82C55 chip The chip s lines go to connectors J2 and J3 The lines on J2 and J3 are divided into 3 eight bit groups Ports A and B can be configured as all inputs or
23. cing a program or section downloading time is increased Blocks of line numbers cannot be renumbered by CAM BASIC when other parts of the program are installed However if a particular section is the only program downloaded then line renumbering in that range is possible Refer to the CAMBASIC RENUM command CAM BASIC automatically formats a line for minimum code space and increased readability For example you could download the following line of code 10 fora 0to5 When you listed this line it would appear as 10 FOR A 0 TO 5 Spaces are initially displayed but not stored The following line 10 fora to would be compressed and displayed as in the second example above Spaces are removed The CAMBA SIC Programming Manual has more information about increasing program speed and editing options Instead of uploading and downloading programs you can save them to the on card EPROM This is useful if you are using a terminal to write programs Make sure the AUTORUN jumper is installed See Chapter 3 SAVING PROGRAMS To prevent automatic program execution on power up insert the STOP statement at the beginning of the program such as line 1 When you power up the RP C 150 the program is transferred into RAM and executed Delete the program line with the STOP statement to normally start programs When saving programs be sure to reenter the STOP statement with its line number WHERE TO GO FROM HERE Turn to Chapter
24. connected to the screw terminals on the STB 26 Switches may be connected directly to a line 10K pull up resistors on board set all inputs high or 1 A switch closure to ground at a line is read as a 0 Configuring digital I O lines Lines are configured during program execution using the CONFIG PIO command On power up or reset all lines are inputs When a line is configured as an output it can sink a maximum of 2 5 mA at 0 4V and can source a minimum of 2 5 ma at 2 4V When driving opto modules the outputs sink 15 mA at 1 0V Digital I O programming example The following example reads a switch at port A bit 3 J2 25 reads an opto module at channel 1 and writes an opto module at channel 5 A LED is controlled at J2 10 port B bit 0 Read switch status port A read opto module ch 101 write module channel 3 turn on led at J2 10 turn off led at J2 10 Reads pin 3 at J2 Set line 114 high 200 D BIT 0 3 210 F OPTO 101 220 OPTO 3 ON 230 BIT 1 0 0 240 BIT 1 0 1 250 A LINE 103 260 LINE 114 1 Page 16 RPC 150 Connector pin out J2 Pin FNNNNNN aon tA vc oO So NO t2 OQ I 00 16 15 17 14 11 12 26 82C55 Port Port A line 0 Port A line 1 Port A line 2 Port A line 3 Port A line 4 Port A line 5 Port A line 6 Port A line 7 Port B line 0 Port B line 1 Port B line 2 Port B line 3 Port B line 4 Port B line 5 Port B line 6 Po
25. d 17 18 You may set the jumper even if the power is on Remember to discharge any static electricity before installing or removing the jumper For this example assume you wanted to save the following program 10 FOR N 0 TO 2 20 PRINT Hello 30 NEXT 40 PRINT If this program is not already in type it in now or if you prefer use your own program Type in the following command SAVE CAMBASIC will compile the program program the EPROM and verify its contents Compile Write Verify The time it takes to do all of this depends upon the length and complexity of the program Generally it will be from 1 to 20 seconds The ready prompt gt will appear when the program has been successfully saved to the EPROM If the program does not write to the EPROM an error message will appear Fail xxxx Saving a program overwrites the previous one There is no way to recover it since both occupy the same space AUTORUNNING To autorun a program 1l Make sure there is a program in EPROM from above 2 Make sure jumper W1 3 4 and 17 18 are installed If you push the reset button the program should autoexecute If there are any errors the program will stop assuming you have not trapped them with ON ERROR and display the error message PREVENTING AUTORUN When troubleshooting a program it s not always convenient for an autoexecute file to run This is CHAPTER 3 especially true if the program
26. d function Pin 82C55 Function Port bit 1 C 0 Row 1 2 C 6 Column 3 3 C 5 Column 2 4 C 1 Row 2 5 C 2 Row 3 6 C 4 Column 1 T C 7 Column 4 8 C 3 Row 4 9 nc 10 Ground Ground is not needed for keypad operation Page 19 KEYPAD PORT CHAPTER 8 COMMANDS The following is a list of CAMBASIC commands for the keypad Comm and Function INPUT KEYPADS Input data from a keypad KEYPA D n Returns last key from keypad port ON KEYPAD Causes a program branch when a key is pressed SYS 8 Returns keypad string address Page 20 RPC 150 CHAPTER 9 DESCRIPTION NOTE Pin 16 on the card edge connector is the speaker output from the 64180 CPU chip This port can be used to drive a speaker The SOUND command is used to generate a frequency EI ENSE Pin 16 CT Pin 16 Corpore se Figure 9 1 Speaker pin location Connecting a speaker SPEAKER When SOUND is used with a time parameter program execution is suspended until it is timed out 100 uF 100 Ohm l p Speaker Figure 9 2 Interface schematic Program ming example Refer to figure 9 2 below for circuit connections to a speaker The series resistor determines the volume the Capacitor sets the lower frequency limit Generally values from 100 uF to 470 uF are adequate The The following example produces tones from 200 to 5000 hz and back down again i
27. dure is not adequate The best way to handle this situation is to figure out the number of bytes used for string variables in the program This determined by the CLEAR statement If you do not use the CLEAR statement then you can figure the bottom of the stack and string space start at address OFDOOH When you start using POKE statements assign new variables BELOW this address To put it another way count down and not up as you add POKE locations Remember when using string and floating point POKEs the address specified is the starting address and will go up PEEK and POKE commands store and retrieve values from memory For example 20 POKE 60000 A puts the value of A into address 60000 Use the PEEK statement to retrieve the variable CHAPTER 5 DATA MEMORY 50 B PEEK 60000 2000 CALL amp FBOO You can store and retrieve arrays strings and variables Lines 100 to 130 load the program into RAM in this way There are many variations of PEEK and i POKE statements A list of CAMBASIC commands Line 2000 calls the program It toggles J2 line 13 appears at the end of this chapter COMMANDS ASSEMBLY LANGUAGE INTERFACE The following isa list of CAM BASIC commands used Use the CAMBASIC CALL statement to execute an with RAM assembly or C language program Command Function A specific area of RAM should be reserved for the program This is to prevent strings and variables from CALL Calls an assembly language routine corrupting
28. eate and edit programs using your favorite word processor or editor Just be sure to save files in DOS text format A technique used to further program documentation and reduce code space is the use of comments in a Page 5 CHAPTER 2 SETUP AND OPERATION downloaded file For example you could have the following in a file written on your editor Check temperature Read the output from the RTD and calculate the temperature 2200 a ain 0 Get temp The first 3 comments downloaded to the RPC 150 would be ignored Similarly the empty lines between comments are also ignored Line 2200 with its comment is a part of the program and could be listed The major penalty by writing a program this way is increased download time Notice that you can write a program in lower case characters CAMBASIC translates them to upper case Some program mers put N EW as the first line in the file During debugging itis common to insert temporary lines Adding NEW ensures that these lines are gone Downloading time is increased when the old program is still present If you like to write programs in separate modules you can download them separately Modules are assigned blocks ofline numbers Start up code might be from 1 to 999 Interrupt handling keypad serial ports might be from lines 1000 to 1499 Display output might be from 1500 to 2500 The program mer must determine the number of lines required for each section When repla
29. l does not respond refer to TROUBLESHOOTING later in this chapter 4 The system is now in the immediate mode and is ready for you to start programming Type the following program in upper or lower case 10 FOR X 0 TO 2 20 PRINT Hello 30 NEXT 40 PRINT Now type RUN The system will display Hello Hello Hello UPLOADING AND DOWNLOADING PROGRAMS Downloading programs means transferring them from your PC or terminal to RAM on the RPC 150 Uploading means transferring programs from RAM back to the PC This section explains how to do both of these procedures using PC SmartLink Generalized instructions for other terminal programs are given later Uploading programs In the previous section you wrote a test program To upload that program to a PC and save it to disk 1 Press the lt Fl key A window with the main menu will appear 2 Press the letter U upper or lower case Your program will begin to transfer from RAM to the PC When menu appears 3 To save a program to disk type the letter S You are prompted for a file name Enter the file name you want the program saved under CHAPTER 2 4 Press lt F2 gt to return to the immediate mode NOTE Some versions of PC SmartLINK have pull down menus or will operate differently Refer to the SmartLINK manual for the version you are using Downloading programs To practice downloading a program type NEW lt return gt Perform the following when
30. n 500 hz increm ents 10 FOR N 200 TO 5000 STEP 500 speaker may be any value but those with 50 ohms or 20 SOUND N 5 greater produce higher sound output 30 NEXT 40 FOR N 5000 TO 200 STEP 500 50 SOUND N 5 WARNING Do not connect pin 16 directly to a 60 NEXT speaker ground or 5V even 70 GOTO 10 momentarily as damage to the CPU will result To stop program execution press the lt esc key SYNTAX SOUND frequency time Where frequency 20 to 15000 Hz time time in seconds SOUND stops executing when CAM BASIC is not running a program The output will be at frequency until SOUND is executed without a parameter or the optional time is timed out frequency is not exact It is however accurate enough for most alarm or audio feedback applications RPC 150 Page 21 ELECTRICAL CPU 64180 9 216 Mhz clock Memory CAMBASIC 32K ROM Programming and data is 32K RAM Program is 32K EPROM U3 Memory speeds are 80 ns or faster Digital I O The RPC 150 has 47 digital I O lines 23 are from J2 The other 24 are from J3 J2 has 7 high current outputs which may be jumpered for inputs The keypad port J5 uses 8 of the 23 lines on J2 All ports use an 82C55 for interfacing The specifications below are for all digital I O except for the eight high current lines at J2 Drive current 2 5 ma maximum per line sink or source TTL compatible Output low voltage 0 45V max at 2 5 mA IV max at 15 mA for opto rack
31. ng a program or in the immediate mode Date and time are treated as strings and notnumbers To set the date and time date 07 25 94 time 15 03 00 To retrieve date and time as part of a program 2000 DAS 2010 TIS DATES 0 TIMES 0 You can also print the date and time in the immediate mode pr time 0 15 04 03 The clock is turned on and off using the CONFIG CLOCK statem ent COMMANDS The following is a list of CAMBASIC commands for the calendar clock Command Function CONFIG CLOCK Configures clock DATE Sets date DATES 0 Returns date TIME Sets time TIME 0 Returns time CHAPTER 8 KEYPAD PORT INTRODUCTION 16 position keypads are plugged into keypad port J5 Keys are arranged in a 4 x 4 matrix format A key is recognized when a row and a column connect CAM BASIC automatically scans and debounces the keypad every debounce time Debounce time is fixed at 80 ms Keypad presses may be returned either as a number from 1 to 16 or as an ASCII character The ASCII character returned corresponds to those on Remote Processing s KP 1 keypad Character assignments are changed using the SYS 8 function Keypads from Remote Processing simply plug into J5 Keypad cable length should be limited to less than 5 feet If the keypad port is not used it may be used as a general purpose digital I O port Ex Hcr CT
32. ng out COM2 The status of this port is read by the BIT statement The example below returns the status of the RTS line 100 B BIT 130 5 If B 1 transmission is held off The CTS line may be set high or low to hold off communication Line 400 sets CTS low and 500 sets it high 400 BIT 128 4 1 500 BIT 128 4 0 The CONFIG BAUD statement sets the configuration of this port ACCESSING SERIAL BUFFERS You can access COMI and COM 2 buffers in three ways 1 INPUT statement This removes all characters in the buffer up to the terminator character and puts them into a variable When using the INPUT statement program execution is suspended until a lt cr Enter key is received Whether this is a problem depends on your particular application INPUT strips bit 7 on the COMI port This means ASCII characters from 0 to 127 are received The INPUT statement can return a maximum string length of 150 characters 2 INKEYS n function Characters are removed one ata time A null string is returned when the buffer is empty CHAPTER 4 In this mode you have access to the full 256 bytes If you don t read the buffer and the buffer fills all subsequent characters are discarded INKEYS n may be used anywhere in the program including lt cr s and other control codes COMS n retrieves all characters in the buffer This function is commonly used with ON COM multitasking statement You can retrieve 128 of the 25
33. nnector from COM 1 Refer to the outline drawing earlier in this chapter Connect an oscilloscope preferred or a voltmeter to pin 3 Txd and ground Pin 3 should be 6 volts or more negative Pin 1 is designated by the symbol on the connector Pin 3 is next to it nearer the key opening If you have 6 volts or more press the reset switch If you have a scope attached you should see a burst of activity If you have a volt meter you should see a change in voltage Using a Fluke 8060A set to measure AC you should see a momentary reading above 2 volts Press reset several times to make sure it captures it 3 Install the cable and make sure the voltages and output activity are still there Output is from pin 3 on the VT C 10 Check to make sure something is not shorting the output 4 Check the serial parameters on your PC or terminal They should be set to 19200 baud no parity 8 data bits 1 stop RPC 150 SETUP AND OPERATION 5 Many times a bad or wrong serial cable can cause characters to get printed but you can t send anything to the card Make sure you are using a VTC 10 cable This cable is wired per Chapter 4 SERIAL CABLE PIN OUT If all of this fails call technical support listed under Chapter 1 TECHNICAL SUPPORT Page 7 SAVING PROGRAMS INTRODUCTION Programs are stored in socket U3 An optional real time clock module a DS 1216EM may also be installed in U3 See Chapter 7 for calendar clock installa
34. ram not running Subtracting 31900 from the number of bytes returned will tell you the approximate number of bytes available for data The best way to make sure your data will not write over the program is to perform the following steps First put a remark statement that you can recognize One is end of program Next save your program to the EPROM using the CAMBASIC SAVE command RPC 150 SAVING PROGRAMS Remove the EPROM and read it from your EPROM programmer Using your program mer go into the mode where you can examine data Look for the remark statement at the end of the program Instruct the programmer to put your data starting at the next even page boundary for example 5000H 5100H and so on Page 9 SERIAL PORTS DESCRIPTION The RPC 150 has two serial ports that can be used for interfacing to a printer terminal RS 485 network or other serial devices This chapter describes their characteristics and how to use them Frequent references are made to commands listed in the CAMBA SIC Programming Manual P lease refer to this manual for more information Serial ports are numbered COM 1 and COM2 COM I is used for program development During run time it can be used for other functions COM2 is a general purpose port and can be used as either RS 232 or RS 422 485 Both ports support XO N XOFF protocol to control data transmission Each port has a 256 character interrupt driven input and output buffer This allows
35. rt B line 7 Port C line 0 Port C line 1 Port C line 2 Port C line 3 Port C line 4 Port C line 5 Port C line 6 Port C line 7 Description High current High current High current High current High current High current High current not available Shared with J5 Shared with J5 Shared with J5 Shared with J5 Shared with J5 Shared with J5 Shared with J5 Shared with J5 CHAPTER 6 Opto Channel 108 109 110 111 112 113 114 115 100 101 102 103 104 105 106 116 117 118 119 120 121 122 123 Ground 5V Opto Channel is computed by adding 100 to the number on the MPS rack The position number is preceded by the letter M on the rack CHAPTER 6 DIGITAL LINES Connector pin out J3 Pin NO wWe BD ff Dm 13 16 15 17 14 11 12 26 82C55 Description Opto Port Channel Port A line 0 0 Port A line 1 1 Port A line 2 2 Port A line 3 3 Port A line 4 4 Port A line 5 5 Port A line 6 6 5 1 Port A line 7 7 Port B line 0 8 Port B line 1 9 Port B line 2 10 Port B line 3 11 Port B line 4 12 Port B line 5 13 Figure 6 3 Digital I O connector pin out viewed from top Port B line 6 14 Port B line 7 15 Port C line 0 16 Port C line 1 17 Port C line 2 18 Port C line 3 19 Port C line 4 20 Port C line 5 21 Port C line 6 22 Port C line 7 23 Ground 5V Opto Channel numbers correspond to the number preceded by the letter
36. the appropriately marked terminals on the RPC 150 2 You can use either a PC or CRT terminal to program the RPC 150 Connect one end of the VTC 10 connector to then 10 pin COM 1 console port on the RPC 150 Refer to Figure 2 1 for connector location Using a PC Connect the VTC 10 serial cable to the PC s COMI or COM2 port Y ou may need a 9 pin male to 25 pin female adapter The VTC 10 is designed to plug directly into the 9 pin serial port connector on a PC Start up your serial communication program PC SmartLIN K or other Set communication parameters to 19 2K baud 8 data bits no parity 1 stop Using a Terminal Follow your terminal instructions to set the baud rate to 19 2K baud 8 data bits no parity and 1 stop You may need a 9 pin male to 25 pin female adapter to connect the VTC 10 PC or Terminal The RPC 150 does not send a CTS signal to the PC or terminal If your terminal or communications software requires this or other signals DCD DSR you may have to tie them to the appropriate levels Page 4 RPC 150 CHAPTER 2 You may be able to ignore these lines in software 3 Turn on your power supply On power up a copyright message is printed CAMBASIC tm V1 00 c 1985 94 Octagon Systems Corp c 1994 Remote Processing Corp All rights reserved Free 29434 If anonsense message appears your terminal or PC may not be set to the appropriate communication parameters If the system stil
37. tion and operation You can store one program up to a maximum size of about 28K bytes A general rule to determine program storage requirements is one line requires 40 bytes 28K bytes would store over 700 lines of code Your application could be significantly more or less depending upon the number of commands line comments and print statements Another indication of program size is to use the file length as saved on a PC disk An EPROM is non volatile flash type technology having an unlimited number of read cycles and a limited number of write cycles about 10 000 A program is not run from EP ROM It is transferred to RAM and run from there Programs in RAM are run and can be modified They can be saved to EPROM for auto execution later The RPC 150 can be set to autorun on power up or reset by installing jumper W 1 17 18 When autorun is on the program in EP ROM is loaded into RAM and begins to execute immediately The EP ROM is write protected with a software lock so accidental writes on power on or off are almost impossible You cannot disable the lock except when executing the SAVE command To save parameters you must use battery backed RAM and save data to U1 sere alt CT cnpessi Lr PROGRAM Jumper wi I Figure 3 1 Autorun jumper SAVING A PROGRAM Page 8 RPC 150 CHAPTER 3 To save a program set jumper W 1 3 4 an
38. umper position indicates factory default and is jumpered Jumper Description Wil U3 control 3 4 U3 write enable 17 18 U3 chip select default Page 22 RPC 150 TECHNICAL INFORMATION Edge connector Serial Port pin out Line Signal Description Pin J1 J4 Signal Signal A 5 Power B DO Data 0 1 NC NC C D2 Data 2 2 RxD RxD D D4 Data 4 3 TxD TxD E D6 Data 6 4 NC NC F AO Address A0 5 Gnd Gnd H A2 Address A2 6 NC NC J A4 Address A4 7 NC CTS K A6 Address A6 8 NC RTS L A8 Address A8 9 5 5 M A10 Address A10 10 NC NC N A12 Address A12 P A14 Address A14 R IWR I O write S HOLD CPU hold T not used U INTO Interrupt 0 V CLK CPU clock W PS Peripheral select X FA2 T Power Y not used Z Gnd Power ground 1 5V Power 2 D1 Data D1 3 D3 Data D3 4 D5 Data D5 5 D7 Data D7 6 Al Address Al 7 A3 Address A3 8 AS Address A5 9 AT Address A7 10 A9 Address A9 11 All Address A11 12 A13 Address A13 13 A15 Address A15 14 IRD I O Read strobe 15 not used 16 Sound Speaker port 17 not used 18 RES Reset input 19 INTI Interrupt input 20 not used 21 12V Power 22 Ground Power ground RPC 150 Page 23 TECHNICAL INFORMATION 6 5 in 0 25 1 00 H H 025 0 156 4 places 45 Card edge connector is on 156 in centers with 093 contact width RPC 150 board outline Page 24 RPC 150
39. using PC SmartLINK 1 Press the lt Fl key to view the main menu 2 SmartLINK has a buffer which is used to temporarily store the program If you followed these instructions without exiting SmartLINK the previously uploaded program is in the buffer and may be downloaded However lets assume you just started SmartLIN K Press the L key to get the program from the disk 3 Enter the filename to get the file 4 Press D to download the program 5 Press the F2 key to return to the program You can list the program by typing list or Other communications software The following is general information when using another terminal emulation program Procomm Windows Terminal etc When uploading or downloading files select ASCII text format XMODEM YMODEM or other formats are not used CAM BASIC does not know when you are typing in a program or if something else laptop or mainframe is sending it characters The upload and download file does not contain any special control codes it is sim ply SETUP AND OPERATION ASCII characters Uploading programs is simply a process of receiving an ASCII file You or your program simply needs to send LIST to receive the entire program The default baud rate 19200 is rather high Make sure your PC and communications software can work at these baud rates PROCOM M was tested on a 12 Mhz 286 PC and it worked fine Windows Terminal on the same PC had problems at much slower
40. ut Pin J1 J4 Direction 1 n c n c 2 RXD RXD Input 3 TXD TXD Output 4 n c n c 5 Gnd Gnd 6 n c n c 7 n c CTS Output 8 n c RTS Input 9 5V 5V source 10 n c n c Page 11 DATA MEMORY INTRODUCTION The RP C 150 is available with 32 of RAM RAM is in socket Ul RAM may be battery backed by installing a DS 1213C in socket Ul RAM is installed on top of U1 Battery life depends upon RAM power consum ption temperature and amount of time the board is operating Generally a battery life from 5 to 10 years can be expected This chapter discusses installing a battery backup for RAM saving and retrieving variables and running assembly language programs Figure 5 1 shows the location of Ul If program and data are battery backed the UNNEW command may be used to restore the program Variables used by the Basic program are cleared however Data POKEd into RAM is saved EN EN LJ CT Ut d useR PROGRAN ll Figure 5 1 Data memory BATTERY BACKUP A Dallas Semiconductor DS 1213C is used to battery backup RAM when power is off Battery life depends upon RAM size type and time the RPC 150 has power applied to it You can expect the battery to last between 5 to 10 years at 25 C Battery life decreases by 1 2 at 50 C To install a DS 1213C remove the RAM chip in Ul install the DS 1213C and install the RAM chip on top of the module
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