Patent pending
Contents
1. E IT Data 10 bit Other RS 232 S RE Devices 07510 a i Baud Rate 19200 Data 10 bit E dl Networt 97520 GT Le OWireless Modem m RS 232 type 097520 RS 485 Network GOWireless PLC br mr GE Modem Baud Rate 7 Lnr i j 1 WJ 9600 AA P4 97520 i 097000 Series baud rate 19200 data 10 bit 7520 RS 232 to RS 485 5860 high speed fl converter Temm high channel number 7510 RS 485 repeater s A D D A D I O boards 7000 Series 4 A D D A D I O F Wireless modem modules o RS 232 devices voltage j meter current meter AT 7188 embedded weight scale etc controller 297 Amy RS 232 interface i devices Fig 1 Patent pending 7000 Bus Converter User Manual version 1 0 6 Conventional Two Wire RS 485 Network The conventional two wire RS 485 network use a DIP SWITCH selectable converter to convert host RS 232 signal to two wire RS 485 signal The baud rate and data format must be setted in fixed value in whole network For example the user can choose baud rate 9600 and data format 10 bit per character This limitation is inconvenient in some real world application The 7000 series Adam 4000 series Nudam 6000 series and DATAFORTH 9B series all use 10 bit format Some conventional PLC use 11 bit data format and some weight scale equipment use 12 bit If the host PC has to send comma2. Fig 13 Patent pending 7000 Bus Converter User Manual version 1 0 19 9 7520 ORS232 ems4ss Note the power ground of 07000 and RS 485 is common ground pe This is the same for Adam 4000 Nudam 6000 and DATAFORTH 9B series modules 7000 situation Fig 14 In most applications the 97520 is used to convert the RS 232 signal to RS 485 network Normally the 697520 does not use the same DC power ground as the Host PC PLC and the isolation site is in RS 232 part Therefore the Host PC PLC is isolated from RS 485 network That is to say if there are any high voltage transient on RS 485 network the OHost PC PLC will be free from damaged WARNING ERROR CONDITION 1 if the 67520 is replaced by 97520R and the O7520R use the same DC power ground with Q7000 In this situation 1 The Host PC PLC is common ground with ORS 232 Q The ORS 232 is common ground with power ground of 97520R 3 The power ground of 7520R is common ground with power ground of 07000 4 The power ground of 07000 is common ground with ORS 485 Therefore the G9 Host PC PLC is common ground with GRS 485 network That is to say there is no isolation between Host PC PLC and RS 485 network The Host PC PLC may be damaged if there are high voltage transient on RS 485 network Patent pending 7000 Bus Converter User Manual version 1 0 20 WARNING ERROR CONDITION 2 if the 7520 is use t
3. Refer to NAP70008S User Manual for software details Using this software the host PC can send out command to remote PC just like send out command to 7000 modules The remote PC will receive command and execute command if the destination address is match with his local address This remote PC and 7000 series modules can use the same RS 485 network The host PC can send out 7000 command and send out PC networking command at different time These modules and remote PC will receive their command respectively This make the network very low cost flexible and reliable This is a unique feature in the world Patent pending 7000 Bus Converter User Manual version 1 0 32 44 RS 232 Devices Network AE PWR 24 RS 232 I 67520 07520 T 3 i Q7520 K j a RS 232 device Connecting 256 RS 232 devices max without repeater 7510 RS 232 ORS 232 device Fig 26 Some RS 232 devices can be connected to 7000 RS 485 network very easy just like PC or PLC introduced in Sec 2 7 and Sec 2 8 These RS 232 devices must follow 3 rules given as following Rule 1 can not send out RS 232 signal in the normal condition Rule 2 every device has a unique device address Rule3 will not send out RS 232 signal if the destination address is not match with the device address The software for RS 232 device networking and PLC networking is very similar The only difference is the command format The command fo
4. 7510 in Fig 22 are used to isolate local modules from RS 485 network If there are high energy transient on RS 485 network all the local modules will be safe Therefor we strongly recommend the user to select isolation connection refer to Fig 22 Patent pending 7000 Bus Converter User Manual version 1 0 28 Isolation Configuration Strongly Recommended 7520 RS 5 485 If the RS 485 network is not over 100 meter the terminated resistors are not needed However it may be necessary to insert two terminated resistors in both end of RS 485 segment It is not easy to calculate the value of terminator resistor The best way is to use scope to check the RS 485 signal directly If the impedance match of RS 485 network is OK the scope will show a very nice square wave If these square wave signals are distorted the user need to insert two terminators in both end of RS 485 segment ML MA es p er 14 ee Resistor value of Resistor value of terminator is too small terminator is too big Fig 23 Patent pending 7000 Bus Converter User Manual version 1 0 29 It is recommended to use try and error rule The try and error rules are given as following 1 If the length of RS 485 is about 1 2 Km try 110 first If the length of RS 485 is about 600 m try 220 first If the length of RS 485 is about 300 m try 330 first 2 Run TEST EXE of NAP7000S Select function 5 run at least continue 8 hours to make s
5. floating unconnected the 7000 module will echo AA to the user e step 8 change baud rate to 115200 with INIT pin connecting to GND pin After this command the baud rate will be still keeping in 9600 The baud rate of 7000 will be changed only during the power on interval Patent pending 7000 Bus Converter User Manual version 1 0 38 e step 10 read the module status baud rate 115200 this value is stored in the EEPROM only The baud rate is changed in step 8 but the baud rate of this module is still in 9600 BPS When the module is power off and power on the baud rate will be changed to 115200 e step 11 power off then power on The module will change its baud rate based on EEPROM value only when the module is first power on e step 13 16 change TEST EXE to baud rate 115200 e step 17 use baud rate 115200 to read back the module status and find that the module is now communicate with baud rate 115200 Patent pending 7000 Bus Converter User Manual version 1 0 39 Patent pending 7000 Bus Converter User Manual version 1 0 5 4 Checksum Enable Disable Wire connection refer to Sec 2 4 Test program refer to NAP7000S User Manual for TEST EXE The steps to enable disable checksum status are given as following Wire connection power on and run test exe press 2 press 012 Enter gt Receive 01080600 press 2 press 0101080640 Enter gt Receive 01 connect INIT pin p
6. 000 Bus Converter User Manual version 1 0 21 The 7520R is designed for PLC networking In the normal condition the PLC system will have a stable DC 24V power source The user may use this power source to Q7520R configuration A When using 97520 the user must use another power source PWR 24 configuration B ORS 485 G7520R Ej 97520 3 9 FI from PLC um OPWR 24 T RS 232 type PLC ee RS 232 type PLC SORNETA A Configuration B Fig 16 The isolation feature is very important in real world application therefore the user should pay more attention to select correct module If selecting wrong module the isolation will be removed but the module will still function OK This may cause unexpected damaged by high energy transients on RS 485 network Patent pending 7000 Bus Converter User Manual version 1 0 22 3 7510 7510A 3 1 Pin Assianment Fig 17 Patent pending 7000 Bus Converter User Manual version 1 0 23 Patent pending 3 2Specifications 7510 RS 485 Repeater Input two wire RS 485 D D protocol Output two wire RS 485 D D protocol Speed Self Tuner inside auto switching baud rate from 300 to 115200 BPS Isolation voltage 3000V Connector plug in screw terminal block Power requirements 10V to 30VDC Power consumption 7000 Bus Converter User Manual version 1 0 7510A RS 485 RS 422 Repeater Input RS 485 RS 422 Output RS 485 RS 42
7. 000 can be read infinite times and can be written about 100 000 times max Therefore the user should not change configuration code often for testing Patent pending 7000 Bus Converter User Manual version 1 0 37 5 3 Change Baud Rate Wire connection refer to Sec 2 4 Test program refer to NAP7000S User Manual for The steps to change the baud rate of communication are given as following Wire connection power on and run test exe 2 press 2 3 press 012 Enter gt Receive 01080600 4 press 2 5 press 0101080A00 Enter gt Receive 01 6 connect INIT pin pin 6 to GND pin pin 10 7 press 2 8 press 0101080A00 Enter gt Receive 01 NOTE 9 press 2 1 To change the baud rate 10 press 012 Enter 2 Receive 01080A00 the INIT pin must be 11 power off disconnect INIT pin and connected to GND pin GND pin power on and run test exe 2 The baud rate will be 12 press 0 saved into EEPROM 13 press 1 Enter 1 2 3 4 for COM 1 2 3 4 immediately 14 press 115200 Enter 3 The module will change its 15 press O Enter baud rate only during the 16 press 2 first power on time 17 press 012 Enter gt Receive 01080A00 e step 3 read the module status baud rate 9600 e step 5 change baud rate with INIT pin floating and find that the function is failure If the user want to change the baud rate of the 7000 module the INIT pin must be connecting to GND pin If the INIT pin is left
8. 115200 checksum is enable e step 5 change this module to address 01 baud rate 9600 checksum disable e step 6 12 disconnect the INIT pin and read back the module status Patent pending 7000 Bus Converter User Manual version 1 0 36 5 2 Change Module Address Wire connection refer to Sec 2 4 Test program refer to NAP7000S User Manual for The steps to change module address are given as following 1 Wire connection power on and run test exe 2 press 2 3 press 012 Enter gt Receive 01080600 4 press 2 5 press 0102080600 Enter gt Receive 02 6 press 2 7 press 022 Enter gt Receive 02080600 8 press 2 9 press 02M Enter gt Receive 027017 10 press 2 11 press 02F Enter gt Receive 02A 1 3 e step 3 read the module status and find that module address 01 baud rate 9600 checksum is enable e step 5 change the module address from 01 to 02 the module address can be changed immediately no need to power off then power on e step 7 read the module status based on the module address 02 e step 9 read the module name e step 11 read the firmware number of this module NOTE If the user use AA2 command to change module configuration the new configuration code will be stored into EEPROM immediately The configuration code includes module address module type baud rate code checksum enable disable code calibration code power on value and safe value The EEPROM data of 7
9. 2 Speed Self Tuner inside auto switching baud rate from 300 to 115200 BPS Isolation voltage 3000V Connector plug in screw terminal block Power requirements 10V to 30VDC Power consumption 2 2W Max 3 3 Block Diagram Isolation 3000 Vdc Fig 18 Isolation 3000 Vdc Patent pending 7000 Bus Converter User Manual version 1 0 25 3 4 Basic Wire Connection External b n Power RS 485 Signal DI D1 7510 RS 485 repeater 3000V isolation RS 485 ra 1 RS 485 Connecting 256 i E monies without 7 Connecting 256 F repeater 7510 repeater 7510 7000 series 7000 series 7000 series p 7000 series Fig 20 The three functions of 7510 are given as following refer to Sec 2 6 for details 1 extend RS 485 network if the path is over 4000 ft or 1 2 K Q extend RS 485 network if connecting over 256 modules 3 cut the long RS 485 path into several isolated short RS 485 path for protection Patent pending 7000 Bus Converter User Manual version 1 0 26 4 7000 RS 485 Networking 4 1 Standard Isolation Configuration Standard Configuration 07520 isolated 232 485 converter 07510 isolated 485 485 repeater z is terminator Max 2048 7xxx modules in one RS 485 network The Host PC PLC will send out command string from its RS 232 port The 97520 will convert these RS 232 signal into RS 485 signal and isolate the host from
10. 20A ISA 7520R 2 1 Pin Assignment CN 1 2 connect to RS 232 2 CN 1 2 connect to RS 232 2 CN 1 2 connect to RS 232 2 ISA 7520R for RS 232 CN2 for RS 485 The ISA 7520R is exactly the same as 7520R except the ISA interface It is designed for easy installation Patent pending 7000 Bus Converter User Manual version 1 0 14 2 2Specifications 7520A RS 232 to RS 485 or RS 422 Converter Protocol two wire amp Protocol two wire Protocol RS 485 D D RS 485 D D or RS 422 7520 RS 232 to RS 7520R RS 232 to 485 Converter RS 485 Converter RS 485 protocol Connector plug in screw terminal block Speed Self Tuner inside auto switching baud rate from 300 to 115200 BPS 256 modules max in one RS 485 network without repeater 2048 modules max in one network repeater Isolation voltage 3000V Isolation site RS 232 Repeater request 4 000 feet or over 256 modules Power requirements 10V to 30VDC protocol Connector plug in screw terminal block Speed Self Tuner inside auto switching baud rate from 300 to 115200 BPS 256 modules max in one RS 485 network without repeater 2048 modules max in one RS 485 network with repeater Isolation voltage 3000V Isolation site RS 485 Repeater request 4 000 feet or over 256 modules Power requirements 10V to 30VDC Connector plug in screw terminal block Speed
11. 38400 57600 115200 Connecting 256 modules in one RS 485 bus without repeater Multiple baud rate and multiple data format can share the same RS 485 bus 7520 7510 Different baud rate and the same module address can share the same RS 485 bus Connecting 256 8 2048 modules max in one RS 485 bus with repeater 7000 series data format 1 start 8 data 1 stop no parity 10 bit Two extra checksum bytes can be enable disable Built in transient voltage suppresser and PTC protector Sharing the same RS 485 bus with the RS 485 or RS 232 device which communicates in multiple data format not 10 bit and multiple baud rate Use 7520 to convert RS 232 to RS 485 Power 10V 30V DC Power reverse protection Over voltage brown out protection System Dual watchdog inside power on start value and safe value for host failure Operating temperature 10 to 70 C 14 to 1859F Storage temperature 25 to 80 C 13 to 185 F 9 Humility 5 to 95 non condensing Patent pending 7000 Bus Converter User Manual version 1 0 5 n amp 1 4 7000 System Network Configuration Pe e Multiple Baud Rate 007000 Series YA e Multiple Data Format V f d G 007188 t 3 b dA mo F m E i 4 vas 7510 065860 6097000 Series OORS 485 type PLC ORS 485 Network 9095599 ih 4 i OORS 485 NE m ix 607000 S i 7 eries 007000 Series 39 Baud Rate 67520 FT 115200
12. 7000 Bus Converter User Manual For 7520 7520R 7520A 7510A ISA 7520 1 Self Tuner Inside 2 Multiple Baud Rate 3 Multiple Data Format 4 Dual WatchDog Inside 5 6 True Distributed Control High Speed amp High Density I O Create New Applications Warranty All products manufactured by ICP DAS are warranted against defective materials for a period of one year from the date of delivery to the original purchaser Warning ICP DAS assume no liability for damages consequent to the use of this product ICP DAS reserves the right to change this manual at any time without notice The information furnished by ICP DAS is believed to be accurate and reliable However no responsibility is assumed by ICP DAS for its use nor for any infringements of patents or other rights of third parties resulting from its use Copyright Copyright 1997 by ICP DAS All rights are reserved Trademark The names used for identification only maybe registered trademarks of their respective companies Patent pending 7000 Bus Converter User Manual version 1 0 1 Table of Contents Patent pending 7000 Bus Converter User Manual version 1 0 2 1 Introduction The 7000 are a family of remote controllable data acquisition modules They provide A D D A DIO Timer Counter MMI and other functions These modules can be remote controlled by a set of commands 1 1 7000 Overview 77000 can be divided into several group
13. ORS 485 network The 7000 series modules including D I D O A D D A Timer Counter and MMI modules will be direct connected to ORS 485 These 7000 series modules can connect max 256 modules in the ORS 485 network without repeater 7510 That it to say there can be 256 modules from 7xxx to 7xxx If the modules are over 256 modules the repeater 7510 must be added to extend the ORS 485 to RS 485 Then there can be another 256 modules connecting in the RS 485 network This is the first function of 7510 The module address can be changed from 00 to FF total 256 max therefore there are max 256 modules in one RS 485 network if all the modules communicate with the same speed 1 Because the 7000 can communicate with different baud rate in the same RS 485 network the 7xxx 7xxx and 7xxx can be communicated to HOST PC PLC with different baud rate Patent pending 7000 Bus Converter User Manual version 1 0 27 2 The 7000 series can be programmed to 1200 2400 4800 9600 19200 38400 57600 115200 totally 8 different speed 3 The 7000 modules can share the same module address if their baud rate are different For example O7xxx module address 01 baud rate 1200 7xxx module address 01 baud rate 9600 97xxx module address 01 Baud rate 115200 These three modules can share the same RS 485 network generated by 87520 4 Therefore there are 256 8 2048 modules max in one RS 485 network with repeater 7510 Th
14. Tuner auto Self inside switching baud rate from 300 to 115200 BPS 256 modules max in one network repeater for 485 2048 modules max in one network repeater for 485 Isolation voltage 3000V Isolation site RS 232 Repeater request 4 000 feet or over 256 modules Power requirements 10V to 30VDC Power consumption 2 2W Max Power consumption Power consumption Patent pending 7000 Bus Converter User Manual version 1 0 15 ISA 7520R PC based RS 232 to The ISA 7520R is exactly the RS 485 Converter same as 7520R except the ISA interface It is designed for ISA bus interface easy installation Protocol two wire RS 485 D D protocol Connector plug in screw terminal block Speed Self Tuner inside auto switching baud rate from 300 to 115200 BPS 256 modules max in one RS 485 network without repeater 2048 modules max in one RS 485 network with repeater Isolation voltage 3000V Isolation site RS 485 Repeater request 4 000 feet or over 256 modules Patent pending 7000 Bus Converter User Manual version 1 0 16 2 3 Block Diagram Isolation 3000Vde Isolation in RS 232 site Isolation in RS 485 site Isolation 3000Vdc Isolation in RS 232 site Fig 11 Patent pending 7000 Bus Converter User Manual version 1 0 17 2 4 Basic Wire Connection RS 485 wire connection GND gt Ext Power GND VS
15. User Manual version 1 0 44
16. e search function given in NAP7000S can search all these 2048 modules in one RS 485 network Refer to NAP7000S User Manual for completely source listing of search function When the RS 485 network is over 4000 ft or 1 2Km the RS 485 repeater 7510 must be added to extend the RS 485 network For example if the ORS 485 is over 4000 ft or 1 2 Km the 97510 must be added to extend ORS 485 to ORS 485 And if the RS 485 is too long the user should use another 7510 to extend another RS 485 network This is the second function of 7510 The power ground of 7000 is common ground to RS 485 network This feature is the same as Adam 4000 Nudam 6000 and DATAFORTH 9B series Therefor all the modules 1n the same RS 485 network are common ground For example all the modules between Q7xxx and 7xxx share the same RS 485 network and all are common ground The ORS 485 length can be up to 4000 ft or 1 2 km this is a very long path This long path make RS 485 network very easy to couple noise by high energy transient on the environment If these noise is too large all the modules in this RS 485 network may be damaged at the same time This is possible and occur often in real world application It is strongly recommended to add another isolation repeater 7510 to break the long path RS 485 network into several short RS 485 network to avoid all the modules damaged at the same time This is the third function of 7510 For example the 07510 67510
17. e 718821884 Ram Flash Rom more features group 9 wireless modem module SST 288 group 10 Power supply module ACE 540A 24V 2A power supply DIN 540A ACE 540A with DIN RAIL mount PWR 24 220V 220V AC input 24V 0 1 A output power adapter PWR 24 110V 110V AC input 24V 0 1 A output power adapter Over 10 modules are under development ODM modules call for details 1 2 7000 Related Documentation e NAP7000S User Manual for software NAP7000S utility program source NAP7000P User Manual for software NAP7000P DLL driver for 7000 NAP7000D User Manual for software NAP7000D DDE driver for 7000 NAP7000L User Manual for software NAP70000 OLE driver for 7000 7000 Bus Converter User Manual for 7510 7520 7520R 7520A 7510A 7000 DIO User Manual for 7050 7052 7053 7060 7041 7042 7044 7067 7000 A D Groupl User Manual for 7017 7018 7013 7013D 7000 A D Group2 User Manual for 7011 7011D 7012 7012D 7014D 7000 D A User Manual for 7021 7000 Timer Counter User Manual for 7080D 7000 Embedded Controller User Manual for 7188 MMICON Hardware Manual for MMICON MMIDOS User Manual for MMICON software Application Note EM001 gt for MMICON evaluation Patent pending 7000 Bus Converter User Manual version 1 0 4 1 3 7000 Common Features Isolation voltage 3000 Vdc Communication Asynchronous half duplex 2 wire RS 485 network Max distance without repeater 4000 feet 1 2Km Speed 1200 2400 4800 9600 19200
18. e Refer to Fig 1 1 The OHost PC send out command via the COMI 2 The 07520 convert this RS 232 signal into RS 485 signal 3 All modules connecting to RS 485 ORS 485 and OORS 485 network will receive this command at the same time Then all modules will start to extract the destination address field and compare to its local module address 4 The module with match address will continue to execute this host command and the other modules will bapass this comand 5 After executing the host command the destination module will send the result back into RS 485 network The Host PC will interprete this result and take action Isolated Repeater The 97510 amp 7510 are used to extend the QORS 485 to OORS 485 amp OORS 485 for three conditions as following 1 the RS 485 path over 1 2Km or 4000 ft 2 connectting over 256 modules in one RS 485 segment 3 break the long RS 485 path into serval short amp isolated RS 485 paths for safety consideration Multiple Baud Rate The modules connecting in the 7000 two wire RS 485 network can communicate to OHost PC with different baud rate For example the max speed of O Wireless Modem amp 00 Wireless Moden is 19200 BPS but all 7000 series module can working under 115200 BPS Some conventional PLC can only communicate at 9600 max The 7520 can auto switch the baud rate from 300 BPS to 115200 BPS Therefore the user can connect all these device into the same RS 485 netwo
19. e used in different baud rate amp different configuration For example PLC 1 1 start 7 data 1 stop 9 bit byte baud rate 1200 PLC n 1 start 8 data 1 parity I stop 11 bit byte baud rate 9600 PLC m 1 start 8 data 1 parity 2 stop 12 bit byte baud rate 1 15200 OMRON CQM1 1 start 7 data 1 even parity 2 stop 11 bit byte OMRON C200 1 start 7 data 1 even parity 2 stop 11 bit byte The 7520 can be 7520 or 7520R refer to Sec 2 5 for details The 97520R 7520R 7520R can be 7520 or 7520R refer to Sec 2 5 for details In this configuration the PLC1 PLCn OPLCm provide DC power to 7520R 7520R 7520R This is the most cheap way and can maintain the 3000V high isolation The user should not replace these 7520R O to 7520 Refer to NAP7000S User Manual for PLC networking software details Patent pending 7000 Bus Converter User Manual version 1 0 31 4 3 PC Networking Application PWR 24 i 7000 series RS 232 fy 1 ORS 485 67520 p p ex FP om 010 899 remote PC Connecting 256 remote PC max without repeater Oremote PC Fig 25 Every remote PC must has a unique address This unique address is similar to module address of 7000 series We call it slave PC address The module address of 7000 is limited to 256 but the slave PC address is unlimited The user can connect thousands of PCs in one RS 485 network by using repeater 7510
20. gt Ext Power 10V 30V Data 2 Data Data amp gt Data I RS 232 wire connection host pin2 RXD gt 7520_pin2 host pin3 TXD gt 7520_pin3 host pin5 GND gt 7520_pin5 PRE PIE Host Computer PIPE Pr Ie Com 1 2 3 4 or UART port ES ES 7510 s RS 485 repeater RS 232 to RS 485 3000V isolation 3000V isolation RS 22 fr RS 485 Ti RS 485 Connecting256 I modules without TT repeater 7510 7000 series 7000 series Fig 12 Patent pending 7000 Bus Converter User Manual version 1 0 18 2 5 How to Select 7520 7520R 7520R is exactly the same as 7520 except the isolation site The isolation site of 7520 is located in RS 232 interface circuit but the isolation site of 7520R is located in RS 485 interface circuit That is to say the power input and RS 485 interface is common ground for 7520 but the power input and RS 232 interface is common ground for 7520R as following gt sz RS 485 site Common ground Isolation site Common ground RS 232 site Applications Most applications For RS 232 type PLC networking 7520 RS 232 to RS 485 3000V isolation Connecting 256 Modules without 2 repeater 7510 f 7000 series 7000 series 7520 application 7 20R 3 T90R FSS I 24VDC l from PLC 7520R 4 Connecting 256 application cum PLCs without repeater 7510 RS 232 type PLC
21. he same DC power ground with Host PC PLC for example Host PC PLC provide non isolated DC power source to 7520 In this situation 1 The Host PC PLC is common ground with power ground of 97520 2 The power ground of 7520 is common ground with RS 485 Therefore the G9 Host PC PLC is common ground with RS 485 network That is to say there is no isolation between Host PC PLC and RS 485 network So the Host PC PLC may be damaged if there are high voltage transient on RS 485 network OK CONDITION If the DC power ground of 697520 or 97520R does not common to any module the Host PC PLC will be isolated from RS 485 network in any condition The power adapter PWR 24 is designed for single 7000 module only The 24V DC output of PWR 24 is isolated from its AC input If the 7520 or 7520R is connecting to PWR 24 this PWR 24 can not connect to the other module Normally the Host PC PLC use a switching power and the DC output of this power supply is also isolated from its AC input Therefore the DC power ground of 697520 or 7520R is isolated from Host PC PLC So the Host PC PLC is isolated from RS 485 network in any condition a SIPWR 24 RS 232 7 1 ORS 485 VE 7520 Connecting 256 SE 7520R 4 modules without F Host PC PLC is isolated a Zepester 151 A Q7000 series Q7000 series from ORS 485 network fo 7520 or G7520R in any condition Fig 15 Patent pending 7
22. in 6 to GND pin pin 10 press 2 press 0101080640 Enter gt Receive 01 press 2 10 press 012 Enter Receive 01080640 11 power off disconnect INIT pin and GND pin 12 power on and run test exe then press 0 13 press 1 Enter 1 2 3 4 for COM 1 2 3 4 14 press 9600 Enter 15 press 1 Enter 16 press 2 17 press 012 Enter Receive 01080640B1 oOIRNABRDR No NOTE 1 To enable the checksum the INIT pin must be connected to GND pin 2 The checksum status will be saved into EEPROM immediately 3 The module will change its checksum state only during the first power on time 4 The TEST EXE will send out the extra checksum byte if checksum is enable 5 The 7000 will echo the extra checksum byte The extra checksum byte is B1 in this example Patent pending 7000 Bus Converter User Manual version 1 0 41 Patent pending 7000 Bus Converter User Manual version 1 0 e step 3 read the module status chksum DISABLE e step 5 enable checksum with INIT pin floating so function failure If the user want to enable the checksum bytes of the 7000 module the INIT pin must be connected to GND pin If the INIT pin is left floating unconnected the 7000 module will echo AA to the user e step 8 enable checksum with INIT pin connected to GND pin After this command the checksum is also in DISABLE state The state of checksum will be changed only during the power on inte
23. it very suitable for industry application The full line of high density isolated cards make it very easy to handle high channel number applications For example The user can install 3 cards to get 32 chnnel A D 16 Channel D A 32 channel D I 32 channel D O Your Powerful Tools Create New Ideas 7000 New Features 1 Self Tuner Inside Multiple Baud Rate Multiple Data Format True Distributed Control High Speed amp High Density I O 2 3 4 Dual WatchDog Inside 5 6 Ji Create New Applications Patent pending 7000 Bus Converter User Manual version 1 0 10 1 5 7000 Dimension 102 mm N V 2 Screw M3 18 mm 25 mm Fig 2 FRONT VIEW SIDE VIEW 25 mm P 5 mm j 43 mm O000000000 j NX REAR VIEW TOP VIEW Fig 3 Patent pending 7000 Bus Converter User Manual version 1 0 11 2 SCREW M3 Fig 4 DIN RAIL Mounting Fig 5 Patent pending 7000 Bus Converter User Manual version 1 0 12 L 2 SIREN mm Panel Mounting 8 mm 10 mm Fig 7 Plastic Part for Panel Mount Patent pending 7000 Bus Converter User Manual version 1 0 13 2 7520 7520R 75
24. nd to remote module PLC and weight scale equipment one possibility is to use three independent two wire RS 485 network That may increase the system cost and reduced the system reliability The user may use many modules in the same two wire RS 485 network in real world applications All these modules must communicate in the same baud rate in the conventional system Some of those modules may be very close to host PC and can communicate with high baud rate Some modules may be far away from the host PC and communicate with low baud rate Because only one speed is validate in the RS 485 network the high speed modules should be forced to communicate in low speed baud rate The performance of the whole system should be decreased 7000 RS 485 Network The 7000 RS 485 network is the most powerful and flexible two wire RS 485 network in the world It is a multiple baud rate and multiple data format network system That is to say all these remote modules PLCs weight scale equipment mentioned above can share the same RS 485 network The 7520 RS 232 to RS 485 converter equips a Self Tuner inside therefore it can detect the baud rate and data format automatically and control the direction of RS 485 network precisely So the user can connect all these equipment to the same RS 485 network This will reduce system cost and increase reliability very much Patent pending 7000 Bus Converter User Manual version 1 0 7 Operation Principl
25. re host watchdog can monitor the status of host PC If the host PC is down all the output of 7000 modules will go to their predefined safe states for safety protection If the RS 485 network is open all the host command can not send to remote modules This is very dangerous in real world application The 7000 output module will force their output going to their predefined safe state for safety consideration if the host watchdog is enable This dual watchdog feature will increase the system reliability very much True Distributed Control The OG 7188 and OG 7188 are equiped with a 80188 ram flash eeprom and can download the user program Therefore they can handle the control details without Host PC This is a very important feature of 7000 AII the 7000 modules work in SLAVE state They are all waiting for commands and then take response They can not take any action to Host PC in any condition Therefore the user can not handle the timing critical and emergency event by using 7000 modules The 7188 is the best choice for this application The OG 7188 can work in stand alone mode after the control program is down load Patent pending 7000 Bus Converter User Manual version 1 0 9 High Speed amp High Density I O The 095860 is a 586 PC based controller It can plug in isolated D I D O A D D A cards as needed The 095860 equips a RS 485 interface to connect to 7000 directly The built in electronic ram rom disk make
26. rk The OHost PC will send out the different baud rate command and only the corresponding destination module will recognize this command and echo its result All the other modules can recognize this command as a invalidate command and bypass it Patent pending 7000 Bus Converter User Manual version 1 0 8 Multiple Data Format The RS 232 is a serial signal and must be transmitted in START bit DATA bit PARITY bit STOP bit The format of ICP CON is 1 START bit 8 DATA bit no PARITY bit I STOP bit totally 10 bits But the conventional PLC use 1 START 7 DATA 1 PARITY 2 STOP totally 11 bits The Host PC can send and receive any data format command The devices connecting in the 7000 two wire RS 485 network can communicate to Q Host PC with different data format This feature make the user can use one two wire RS 485 network to connect remote modules PLCs RS 232 devices and instrument in the most reliabile and low cost way Dual WatchDog Inside All 7000 modules equip hardware module watchdog and software host watchdog The 7000 series are designed for industry applications therefore they can work in the harsh environment There are many couple noise or energy transient in such environment The modules may be down if these noise is really too large The built in hardware module watchdog can reset the module if it is down for too large signal Sometimes even the host PC may be down for hardware or software reasons The softwa
27. rmat of PLC are always different for different manufacturer Refer to NAPOO0S User Manual for software details Patent pending 7000 Bus Converter User Manual version 1 0 33 5 7000 Quick Start 5 1 Find Status of Unknown Module Wire connection refer to Sec 2 4 Test program refer to NAP7000S User Manual for Connect I NIT pin to GND pin first as following GND Ext GND VS Ext 24V Data RS 485 Data Data RS 485 Data N YT Te Te ye I iT J No OO IS ION JA eA jo 0 The steps to find the status of the unknown module are given as following Wire connection INIT pin GND power on and run test exe press 2 press 002 Enter gt Receive 02080A40 press 2 press 0001080600 Enter gt Receive 01 power off disconnect INIT pin pin 6 and GND pin pin 10 and power on NOTE If the INIT pin 7 press 2 is connected to GND pin 8 press 012 Enter gt Receive 01080600 the 7xxx will 20 to its 9 press 2 default setting as 10 press 01M Enter gt Receive 017017 following 11 press 2 1 module address 00 12 press 01F Enter gt Receive 01A1 3 2 baud rate 9600 NM KBWN 3 checksum is disable Patent pending 7000 Bus Converter User Manual version 1 0 34 Patent pending 7000 Bus Converter User Manual version 1 0 e step 3 read the module status with INIT pin connecting to GND pin and find that module address 02 baud rate
28. rval But the checksum status is saved into EEPROM immediately e step 10 read the module status from EEPROM and find the checksum is in ENABLE state The state of checksum is changed in step 8 but this module is still in checksum DISABLE now Only when the module is power off and power on the state of checksum will be initiated to ENABLE e step 11 power off disconnect the INIT pin and GND pin Power on The checksum status of this module is enable now e step 12 17 change TEST EXE to baud rate 9600 and checksum enable then read back the module status and find that the module is in checksum enable state now The steps to compute checksum are given as following checksum 0 for all command byte checksum checksum command checksum checksum amp Oxff convert checksum to ASCII high byte and ASCII low for example command 012 Enter checksum 0 1 2 0x24 0x30 0x3 1 0x32 0xB7 checksum amp Oxff OxB7 checksum ASCII high byte ASCII B 0x42 checksum ASCII low byte ASCII 7 0x37 command with checksum 012B7 Enter Patent pending 7000 Bus Converter User Manual version 1 0 43 5 5 QBASIC Demo Program It is very easy to use QB to send out RS 232 command The program listing is given as following 10 OPEN COMT1 9600 N 8 1 RS CS CD DS AS 1 20 CMD 012 30 PRINT 1 CMD 40 RESULT INPUT 9 1 50 PRINT Send 012 gt Receive RESULT 60 CLOSE END Patent pending 7000 Bus Converter
29. s based on their function as following group 1 bus converter modules support bus converter amp repeater 7520 7520R ISA 7520R RS 232 to RS 485 converter 3000V isolation 7510 RS 485 to RS 485 repeater 3000V isolation 7520A RS 232 to RS485 amp RS 422 converter 3000V isolation 7510A RS 485 and RS 422 repeater 3000V isolation group 2 DIO modules support TTL isolated DIO relay amp O C output 7050 TTL IO 7 In 8 Out 7052 1solated DI 8 In 7053 Non isolated DI 16 In 77060 isolated DI amp relay output 4 In 4 Relay 7041 1solated DI 14 In 7042 isolated O C DO 13 Out 7044 high driver O C output I isolated DI 4 In 8 Out 7067 relay output 7 Relay group 3 DA module support voltage current output 7021 group 4 AD modules support voltage current thermocouple RTD measurement 7011 7011D single channel thermocouple measurement 7012 7012D single channel large signal measurement 7013 7013D RTD measurement 7014D general analog signal measurement with LEDs display 7017 multi channel 7012 7018 multi channel 7011 Patent pending 7000 Bus Converter User Manual version 1 0 3 group 5 Timer Counter modules 7080 7080D group 6 Man Machine Interface MMICON 240 64 LCD 4 4 KBDs 8 function key group 7 Power relay Modules RM104 108 116 4 8 16 channels of form C SPST 400V AC 16A RM204 208 216 4 8 16 channels of form C SPDT 400V AC 5A group 8 Embedded Processor modul
30. ure communication OK 3 If function 5 find many communication errors use scope to check the wave form The wave form will tell you wheather the terminator is too small or too big Then adjust your terminator and run TEST EXE again 4 If the correct terminators are found run the TEST EXE continuously at least 8 hour to make sure no communication error The function 5 of TEST EXE given in NAP7000S will automatically read testing command from TEST DAT and perform send receive testing continuously It will continuously test and record all testing results Therefore this function is special designed for RS 485 network stability evaluation If you run function 5 for 8 hours continuously and find no any check error this means that your RS 485 network is very stable now Also this means that your terminator match well now NOTE 1 The value of terminator is depended on the RS 485 wire used If the RS 485 path is very long don t use the cheaper wire It is recommended to select the high quality wire such as Belden 1583A NOTE 2 The terminator is different for various applications Therefore we can not provide terminator with 7520 or 7510 The user must choose his correct terminator himself It is recommended to use carbon 1 4w resistor Patent pending 7000 Bus Converter User Manual version 1 0 30 4 2 PLC Networking Application 07520 07510 Q7520R O7520R 7520R Fig 24 These PLCs can b
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