User`s Manual of ISaGRAF Embedded Controllers
Contents
1. ex 100 20000 832767 Valid word range is from 32768 to 82767 D Integer Integer should be start with and end with for ex 1234567 200000 Valid integer range is from 2147483648 to 2147483647 E Real Real value should be start with lt and end with gt for ex lt 123 gt lt 1 56E 2 gt lt 123 456 gt 3 The character between each Byte Word Integer Real String at the same line should be at least one space character lt SP gt or lt Commas gt or lt Tab gt For example 201 to download to the SRAM which staring from byte No 201 Hello 10 20 30 40 10000 70000 End data total 18 bytes Example Please download demo_ 44 to one I 8417 881 7 8437 8837 Then edit a text file as below The 1000 means the blinking period of L1 is 1000 ms The 250 means the blinking period of L2 is 250 ms E The 100 means the blinking period of L3 is 100 ms Then run UDloader exe You will see something change on the led of the controller Fe ICPDAS UDloader lO x Upload SRAM MODULE 512 Fie ID File Name Begin Head Tail End Upload 1 Not Used FL FL M Fl Upload i 2 NotUed M O M M M Uwz 3 NotUed FE ME spo 2 4 NotUed M A E H mag 5 Not Used Fi Fi Fl Fi Uplaad 5 6 NotUed HM ae A Cad 1 pa A A O ee communication parameters Destination Folder which text file to operate L Download ow F File Nam2. its driver version of 1 18 and version 1 16 for I 7188XG If your driver is older one please upgrade the hardware driver to the associate version or a higher version The driver can be found from the below ICP DAS s web site i i htto www icodas com products 8000 isagraf htm The I O library should be re installed if yours is older one Please refer to section 1 2 Or you can refer to Appendix A 2 to simply install C functions with the below items S BR S BW SBYR S BY W SMR SMW SWD R S WDW SNR S_N_W S_R_R S_R_W S_DL_EN S_DL_EN S_D _RST S_DL_STS S_FL_INI S_FL_AVL S_FL_RST S_FL_STS S_MV and I O complex equipment S256 512 10 3 1 Access to the SRAM The SRAM can store boolean byte word integer real amp message Their format is as below Boolean True 1 False 0 1 byte Byte 0 255 1 byte Word 32768 32767 2 bytes Integer signed 32 bit 4 bytes Real float 4 bytes Message string len lt 255 len bytes To access to the SRAM the below functions can be used Please refer to Appendix A SBR S BW S BYR S BYW S MR S MW S_WD_R S_WD_W SNR S N W S_R_R S_R_W S_MV 10 3 2 Upload data stored in the SRAM For PC to upload data stored in the volatile SRAM of the ISaGRAF controllers the SRAM should be divided into 1 or up to 8 files Each file has a ID No of 1 to 8 and a name of up to 12 characters The below functions are for handling file format inside the SRAM S_FL_INI S_FL_AVL S_FL_
3. 0 The available file contains 15000 bytes 3 If Head Tail 5001 5000 it means the available data of the file is starting from byte No of 5001 to 20000 and then continued with 1 to 5000 The available file contains 20000 bytes 4 If Head Tail 5000 5000 it means the available data of the file is empty 0 byte 5 If Head Tail 1 1 it means the available data of the file is empty O byte To upload the data stored in the SRAM please make sure you have installed the ICPDAS UDloader on your PC To upload data stored in the SRAM of the ISaGRAF controller to PC please run UDloader exe then click on Link Setup to set proper communication parameters then click on Upload 1 to upload it Example Please download demo_41 to one I 8417 8817 8437 8837 Then push button 1 or 2 or 3 or 4 several times Then upload the file stored in the SRAM Fe ICPDAS UDloader file resident location Upload SRAM MODULE 512 File ID __ ile Name j Current available 1 file location 1 Not Used 1 1 1 ot Used 5i M FA a7 Not Used Fi Fi Fi i Upload 2 Upload 2 inf p lo bl d 4 Click here to set File name amp SNA communication par location PC Upload Uplogf All File Name Set Load File Download Click here to set communication parameters file resident location Current available f
4. AD_F Read one float value For ex 123 45 2 15E 03 froma file F_WRIT_F Write one float value to a file open with Write mode F_ROPEN Open an existing binary file in READ mode F_WOPEN Open an existing binary file in READ amp WRITE mode F_CLOSE Close an open file F_EOF Test if end of file has been reached FA_READ Read one integer 4 bytes signed from a file FA_WRITE Write one integer 4 bytes signed to a file open with Write mode FM_READ Read one message String from a file FM_WRITE Write one message String to a file open with Write mode CAGE NCAGE Code 3FNFO 310 517 9888 www icpdas usa com High Quality Data Acquisition and Embedded Control Products
5. CAGE NCAGE Code 3FNFO 310 517 9888 www icpdas usa com High Quality Data Acquisition and Embedded Control Products Retained Variables and Data Backup in I 8xx7 Modules 10 1 The Retained Variable In some instances data must be retained when the module s power is lost and ideally the data should be restored to its last value when the power powered back up I 8xx7 amp I 7188EG XG controllers W 8xx7 doesn t support retained variable however it supports file operation Please refer to 10 5 Reading amp Writting File provide battery backup memories to fit such kind of applications The battery used can provide the energy to keep the retained variables alive last for some years It also can provide the energy for the Real Time Clock A maxinum of six integers reals signed 32 bit and sixteen Booleans can be retained If the amount of retained data is more please refer to Section 10 3 Battery Backup SRAM If battery backup SRAM is found in the controller 8xx7 S256 S512 7188EG XG X607 X608 the maxinum number of retained variables can be extend to 256 Boolean 32 Timer and 256 Integer Real To enable the retained function click on Retain for each associated variable 10 2 Data Backup To The EEPROM Data can be stored into the EEPROM The value will be always hold even the power is dead unless the value is updated The EEPROM of I 8xx7 I 7188EG XG amp W 8xx7 controller can be read freely howe
6. RST S_FL_STS Please use functions of S_FL_INI amp S_FL_AVL to arrange the file resident location amp current available location Please refer to Appendix A amp demo_40 41 or 42 The volatile SRAM is consisted of bytes The total number of bytes available depends on which module is used as below The upper 12K is reserved Module name Byte No I 8xx7 S256 1 249 856 244K 256 244 12K is reserved I 8xx7 S512 1 512 000 500K 512 500 12K is reserved I 7188XG EG X607 1 118 784 116K 128 116 12K is reserved I 7188XG EG X608 1 512 000 500K 512 500 12K is reserved a ws a es es a E A file can be located at any place inside these bytes Each file s location can be described as Begin End Begin is the lower limit byte No of the associated file while End is the upper limit byte No and Begin is always less than End A file inside the SRAM has a current available area Head Tail Head is the starting position of the file Tail is the ending position Head can be larger less than or equal to Tail For ex a file resides at Begin End 1 20000 1 If Head Tail 1001 5100 it means the available data of the file is starting from byte No of 1001 to 5100 The available file contains 4100 bytes 2 If Head Tail 10001 5000 it means the available data of the file is starting from byte No of 10001 to 20000 and then continued with 1 to 500
7. e ee and Settings Administrator ea m Set Load File E era txt ance parila Help Wrong String found at line 2 Emor Sty Click Download to start to download 250 Click Download to start to download Click Set Load File to indicate which text file to operate Click Link Setup to set proper communication parameters i 1000 250 100 sTART 1 to download to the SRAM which staring from byte No 1 23 data total 57 bytes 1 2 3 4 5 6 7 8 9 10 comma lt SP gt amp lt Tab gt are all acceptable lt 0 123 gt lt 456 789 gt lt 100 gt lt 2 3E3 gt E 10 3 4 Operation Functions for the battery backup SRAM The below functions are for the ISaGRAF controller to access to the volatile SRAM S_FL_INI Init one file s name amp location for the volatile SRAM S_FL_AVL Set one file s current available byte No for the volatile SRAM S_FL_STS Get file s Status end byte No that has been load by PC for the volatile SRAM S_FL_RST Reset file s Status to Not been load by PC yet for the volatile SRAM R Read one Boolean TRUE FALSE Read one Byte 0 255 Read one Word 32768 32767 Re ad one Integer 32 bit signed Read one Real 32 bit float Read one String gt W Zg vW ox BRP 7 J rite one Boolean TRUE FALSE W Write one Byte 0 255 D_W Write one Word 32768 32767 _W Write one Integer 32 bit signed _W Wri
8. gned up to 756 words can be stored EEP_N W Writes one integer 4 bytes signed up to 378 integers can be stored EEP_B R Reads one boolean EEP_BY_R Reads one byte EEP_WD_R Reads one word 2 bytes signed EEP_N R Reads one integer 4 bytes signed For W 8xx7 the addressing No of bytes is range from 1 to 14272 while words is 1 to 7136 and integers is 1 to 3568 The following No will use the same memory address in the EEPROM When using the write functions the EEPROM will be damaged if the write operation is more than 100 000 times For example the following program is dangerous since the EEPROM will be written once per cycle normally the cycle is about 2 to 60 ms depends on the application However the following program is safe if Val is not changed frequently Each read write operation in the EEPROM will consume a lot of CPU time of I 8xx7 I 7188EG XG amp W 8xx7 controller system The following approximate time is for each function being called Recommend to read values from the EEPROM at one time when the I 8xx7 I 7188EG XG amp W 8xx7 is powered up and then updated the associated address in the EEPROM when the value is changed Please refer to a sample program in Chapter 11 demo_17 For those data which are frequently changed are not suitable to be stored in the EEPROM Byte 4n 3 4n 2 4n 1 4n n 1 2 3568 Word 2n 1 2n Integer n EEP_EN 0 08 ms EEP_PR 0 08 ms EEP_B R 0 8ms EEP BW 6
9. ile location File name amp location PC 10 3 3 Download data to the SRAM For PC to download data to the volatile SRAM of the ISaGRAF controllers The below functions can be used Please refer to Appendix A amp demo_ 44 S_DL EN S DL DIS S DL_RST S _DL_STS Please call S_DL_EN to enable it E The Controller accepts only the binary format for String Byte Word Int amp Real Byte 0 255 1 byte Word 32768 32767 2 byte low bye high byte Int 32 bit signed integer 4 byte lowest 2nd 3rd highest Real 32 bit float 4 byte lowest 2nd 8rd highest String up to 255 bytes If using the UDloader exe to download data to the volatile SRAM the data to be downloaded should be edited as a text file Its format should follow the below rules The first line should be a No indicate that to download to which starting Byte No of the SRAM Valid starting byte No is as below 256 1 249 856 S512 1 512000 X607 1 118 784 X608 1 512000 The other line is the data A String String should start and end with the character of for ex Abcd123 7 byte The NN NN in hexidecimal and should not equal to 0 could be used to indicate the ASCII character For ex ABC 0D contains 4 bytes the 4th byte is lt CR gt B Byte Byte should start with and end with for ex 0 123 255 Valid byte range is from 0 to 255 C Word Word should be start with and end with for
10. ms EEP_BY_R 0 8ms EEP_BY_W 6ms EEP_WD_R 1 5ms EEP_WD_W 12 ms EEP_N R 2 9ms EEP_N W 23ms ST program Val Old_Val declared as integers TEMP declared as a boolean IF Val lt gt Old_Val THEN TEMP eep_n_w 1 Val Old_Val Val END_IF ST program Val is declared as an integer TEMP is declared as a boolean TEMP eep_n_w 1 Val dangerous 10 3 Battery Backup SRAM The 8417 8817 8437 8837 can integrate with a S256 or S512 battery backup SRAM to store data alarm and information while X607 amp X608 for the I 7188EG XG controller The data been stored in these SRAM is always retained unless their battery running out of energy Their memory size is as below however the upper 12K is reserved by ISaGRAF controllers 8417 8817 8437 8837 S256 244K bytes 256 12 244 S512 500K bytes 512 12 500 I 7188EG XG X607 116K bytes 128 12 116 X608 500K bytes 512 12 500 If battery backup SRAM is found in the controller the maxinum number of retained variables can be extend to as below Boolean 256 Integer Real 256 Timer 32 ICP DAS provides an utility ICPDAS UDloader that can be installed on the PC to upload and download data from to the ISaGRAF controller Please copy UDloader exe from the ICP DAS s CD ROM napdos isagraf isome_utility to your windows The 8417 881 7 8437 8837 supports S256 S512 since its driver version of 2 25 while I 7188EG supports X607 608 since
11. te one Real value 32 bit float W Write one String ease _EN Enable the download permission for PC to download data to the volatile SRAM _DIS Disable the download permission for PC to download data to the volatile SRAM _ STS Get PC s Download Status for the volatile SRAM _RST Reset the Download Status to 1 No action for the volatile SRAM dis wel Na je 9 a te i ee vous Pa 10 4 Using l 8073 MultiMediaCard to store data The l 8073 is not support by I 8xx7 I 7188EG XG amp W 8xx7 10 5 Reading amp Writing File The W 8037 8337 8737 controller system support file operation however I 8xx7 amp I 7188EG XG doesn t W 8037 8337 8737 has a Compact Flah Disk with normal size of 128Mbytes the size depends on the Compact Flash Disk been installed The following ISaGRAF standard functions are support by W 8xx7 E The following functions are support by W 8xx7 The example programs for file operation reside at the Wincon CD ROM e napdos isagraf wincon demo wdemo_01 pia amp wdemo_02 pia ftp ftp icodas com pub cd winconcd napdos isagraf wincon demo F_CREAT Creat an empty file for reading amp writing F_SEEK Move file position to F_READ_B Read one byte 0 255 from a file F_WRIT_B Write one byte 0 255 to a file open with Write mode F_READ_W Read one Word 32768 to 32767 from a file F_WRIT_W Write one byte 32768 to 32767 to a file open with Write mode F_RE
12. ver can be written only about to 100 000 times To read a value from the EEPROM the following functions can be used To write a value to the EEPROM should remove the protection of the EEPROM first and then write operation is possible The following functions can be used The below two blocks can be used to Read Save real value To save a Real value to the EEPROM use Real_Int to map the real value to an integer and then use EEP_N_W to save this mapped integer To read a Real value from EEPROM use EEP_N_R to read it and then use Int_Real to map this integer to an real value Bytes words and integers will be stored to the same memory area in the EEPROM Be careful to arrange their address before using the above write functions There are total 1 512 bytes in the EEPROM memory area of the I 8xx7 amp I 7188EG XG while much more in the W 8xx7 For I 8xx7 amp I 7188EG the addressing No of bytes is range from 1 to 1 512 while words is 1 to 756 and integers is 1 to 378 The following No will use the same memory address in the EEPROM Byte 4n 3 4n 2 4n 1 4n n 1 2 378 Word 2n 1 2n Integer n Int_Real Map a long integer to a Real value Real_Int Map a Real value to a long integer EEP_EN Removes the protection of EEPROM EEP_PR Set the protection of EEPROM EEP_B _W Writes a boolean up to 256 booleans can be stored EEP_ BY _W Writes one byte up to 1 512 bytes can be stored EEP_WD_W Writes one word 2 bytes si
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