7521/2/2A/3/4/7 Series Hardware User’s Manual 7521 Series New Features 1. Self Tuner Inside Your Powerful Tools 2. Multiple Baud Rate 3. Multiple Data Format Create New Ideas 4. Dual WatchDog Inside 5. True Distributed Control Create New Applications 6. High Speed & High Density I/O 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.
Table of Contents 1. INTRODUCTION ................................................................................................................................................3 1.1 FEATURES ...............................................................................................................................................................7 1.2 PIN ASSIGNMENT .......................................................................................................................................
1. Introduction The 7521 series is a series of expandable embedded controllers designed for industry applications. They can be used to replace the PC or PLC in harsh environments. The 7521 series can be ordered as following: Order Items 7521(D) 7522(D) 7522A(D) Module name Intelligent Communication Controller (1 channel of RS-232) Intelligent Communication Controller (2 channels of RS-232) Intelligent Communication Controller (1 channel of RS-232 & 1 channel of RS-422/485) O. S.
The 7521 series modules have been very successful during the past three years. Over one hundred thousand modules have been shipped to locations all over the world.
The serial interface of the I/O expansion bus can link to these serial devices very easily. The design of the I/O Expansion Bus makes the idea of a “Customized 7000 Module” come true.
Package List In addition to this manual, the package includes the following items: One 7521 series hardware module One hardware manual (this manual) One release note One software utility disk or CD One download cable CA0910F for 7521, 7522, 7523 CA0910 for 7522A, 7524, 7527 Note If any of these items are missing or damaged, contact the local distributors for more information. Save the shipping materials and cartons in case you want to ship in the future.
1.1 Features 1.1.
1.1.2 What is MiniOS7? The MiniOS7 is an embedded O.S. designed for the 7521 series. Developed by ICP DAS Co. Ltd; It is used to replace the ROMDOS used in the 7188 series. Several brands of DOS have been created by various companies. In all cases, DOS--whether PC-DOS, MS-DOS, or ROM-DOS--is a set of commands or code which tells the computer how to process information. DOS runs programs, manages files, controls information processing, directs input and output, and performs many other related functions.
1.1.3 What is the 64-bit hardware unique serial number? The 7524/2A/27 equips a 64-bit hardware unique hardware serial number onboard. This number is unique & cannot be shared by any three 7524/2A/27. The application software can check this number for illegal copies. It is the most low cost protection mechanism the 7524/2A/27 currently has 1.1.4 What is the Self-Tuner ASIC? The 2-wire RS-485 port is designed to directly drive the 7000 series modules. It is a half-duplex 2-wire RS-485 network.
1.1.7 1/2/3/4/5/6/7-port Addressable RS-232 Converter? The 4521 is used as an addressable RS-232 converter. It can assign an address to any RS-232 device in the same RS-485 network. Because the firmware of the 4521 cannot be modified & the application is different case by case, many customers complain about the limitations of the 4521. The 7521 series are designed to act as a “1/2/3/4/5/6/7 port Addressable RS-232 Converter”.
1.2 Pin Assignment 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
Pin assignment of 13-pin screw terminal block(7521/7521D): Pin Name Description 1 X3 Connects to I/O expansion board 2 X2 Connects to I/O expansion board 3 X1 Connects to I/O expansion board 4 DO3 Digital output, 150mA, 30V 5 DO2 Digital output, 150mA, 30V 6 DO1 Digital output, 150mA, 30V 7 DI3 Digital input, 3.5V ~ 30V 8 DI2 Digital input, 3.5V ~ 30V 9 DI1/ Initial pin or digital input, 3.
7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
Pin assignment of 13-pin screw terminal block(7522/7522D): Pin Name Description 1 CTS3 Clear To Send of COM3 (RS-232) 2 RTS3 Request To Send of COM3 (RS-232) 3 RXD3 Receives Data of COM3 (RS-232) 4 TXD3 Transmits Data of COM3 (RS-232) 5 GND Signal ground of COM3 & COM4 6 DO1 Digital output, 150mA, 30V 7 DI3 Digital input, 3.5V ~ 30V 8 DI2 Digital input, 3.5V ~ 30V 9 DI1/ Initial pin or digital input, 3.
7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
Pin assignment of bottom 14-pin screw terminal block: Pin Name Description 1 DO 100 mA, 30V max. 2 DI 3.5V ~ 30V 3 D1+ DATA+ pin of COM1 (RS-485) 4 D1DATA - pin of COM1 (RS-485) 5 CTS1 Clear To Send of COM1 (RS-232) 6 RTS1 Request To Send of COM1 (RS-232) 7 GND Signal ground of RS-232 8 TXD1 Transmits Data of COM1 (RS-232) 9 RXD1 Receives Data of COM1 (RS-232) 10 INIT* Initial pin, 3.
7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
Pin assignment of 13-pin screw terminal block(7523/7523D): Pin Name Description 1 CTS3 Clear To Send of COM3 (RS-232) 2 RTS3 Request To Send of COM3 (RS-232) 3 RXD3 Receives Data of COM3 (RS-232) 4 TXD3 Transmits Data of COM3 (RS-232) 5 GND Signal ground of COM3 & COM4 6 TXD4 Transmits Data of COM4 (RS-232) 7 RXD4 Receives Data of COM4 (RS-232) 8 DI2 Digital input, 3.5V ~ 30V 9 DI1/ Initial pin or digital input, 3.
7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
Pin assignment of bottom 14-pin screw terminal block: Pin Name Description 1 DO 100 mA, 30V max. 2 DI 3.5V ~ 30V 3 D1+ DATA+ pin of COM1 (RS-485) 4 D1DATA - pin of COM1 (RS-485) 5 CTS1 Clear To Send of COM1 (RS-232) 6 RTS1 Request To Send of COM1 (RS-232) 7 GND Signal ground of RS-232 8 TXD1 Transmits Data of COM1 (RS-232) 9 RXD1 Receives Data of COM1 (RS-232) 10 INIT* Initial pin, 3.
7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
Pin assignment of bottom 14-pin screw terminal block: Pin Name Description 1 DO 100 mA, 30V max. 2 DI 3.5V ~ 30V 3 D1+ DATA+ pin of COM1 (RS-485) 4 D1DATA - pin of COM1 (RS-485) 5 CTS1 Clear To Send of COM1 (RS-232) 6 RTS1 Request To Send of COM1 (RS-232) 7 GND Signal ground of RS-232 8 TXD1 Transmits Data of COM1 (RS-232) 9 RXD1 Receives Data of COM1 (RS-232) 10 INIT* Initial pin, 3.
1.3 Specifications General environment Operating temperature: -25°C to +75°C Storage temperature:-40°C to +85°C Humidity: 0 to 90 % Built-in Watch Dog Timer (1.6 seconds) Built-in power protection & network protection circuit Program downloadable from PC Built-in I/O expansion bus interface 1.3.
COM2 RS-485: D2+, D2-, self-tuner ASIC inside Communication speed: 115200 max. Isolation voltage: 3000V COM3 for 7522/7522D/7523/7523D only RS-232 only RS-232: TXD,RXD,RTS,CTS,GND Communication speed: 115200 max. 16 bytes FIFO COM4 for 7523/7523D only RS-232 only RS-232: TXD,RXD,GND Communication speed: 115200 max. 16 bytes FIFO D/I 3 channels for 7521/7521D/7522/7522D 2 channels for 7523/7523D Logic low level: 0V ~ 1V Logic high level: 3.5V ~ 30V D/O 3 channels, 100mA, 30V max.
1.3.
COM1 RS-232 or RS-485 RS-232: TXD,RXD,RTS,CTS,GND RS-485: D1+, D1-, self-tuner ASIC inside(7522A/7524) Communication speed: 115200 max. COM2 RS-485: D2+, D2-, self-tuner ASIC inside Communication speed: 115200 max. Display 7-segmemt LED: 5-digit (for 7188XBD) Power Power requirements: 10 to 30VDC(non-regulated) Power consumption: 2.0W for 7188XB 3.0W for 7188XBD For ODM User SRAM can be 512K max. COM2 can be 3000V isolated EEPROM can be 32K bytes 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.3.3 Specifications of the 7522A/7522AD/7524/7524D/7527/7527D 7522A 7522AD 7524 7524D 7527 7527D 7188XB+X507 7188XBD+X507 7188XB+X505 7188XBD+X505 7188XB+X506 7188XBD+X506 Refer to “ I/O Expansion Bus in the 7188X/7188E User’s Manual” for more information about the X505,X506,X507 X505 X506 X507 RS-232 RS-422/485 3 0 6 0 0 1 D/I 0 0 4 D/O 0 0 4 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.4 Block Diagram SRAM=128K Flash-ROM=256K COM1 RS-232/RS-485 D/O=3 channel 150mA, 30V D/I=3 channel 3.5V ~30V Watchdog circuit 80188-20 16 bits timer EEPROM (2K) 5-digit LED (options) COM2,RS-485 3000V isolation +5V +10V to +30V power converter 7521 SRAM=128K Flash-ROM=256K COM1 RS-232/RS-485 D/O=1 channel 150 mA, 30V D/I=3 channel 3.
SRAM=128K Flash-ROM=256K COM1 RS-232/RS-485 Watchdog circuit D/I=2 channel 3.5V ~30V 80188-20 16 bits timer COM2,RS-485 3000V isolation (2K) 5-digit LED (options) COM3,RS-232 +5V COM4,RS-232 7523 EEPROM +10V to +30V power converter 7522A : « 7188XB(D) X507 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
7524 : « X505 7188XB(D) 7527 : « 7188XB(D) X506 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.5 Wiring Diagrams for Application 1.5.1 Program download (valid for the 7521(D), 7522(D), 7523(D)) 7521 Download cable CA0910F GND 13 Ext. GND +VS 12 Ext. 24V 1 Data+ D2- 11 2 TXD D2+ 10 3 RXD Di1/Init 9 4 N/C DI2 8 5 GND DI3 7 6 N/C DO1 6 7 CTS DO2 5 8 RTS DO3 4 9 Data- X1 3 X2 2 X3 1 COM1 Connect INIT* to GND to disable autoexec.
(valid for the 7522A(D)/7524(D)/7527(D)) 14 Ext. GND +VS 13 Ext. 24V D2- 12 D2+ 11 INIT* 10 RXD1 9 RX TXD1 8 GND 7 TX GND RTS1 6 CTS1 5 D1- 4 D1+ 3 DI 2 DO 1 7522A/7524/7527 GND 15 28 Connect INIT* to GND to disable autoexec.
1.5.2 Using a 3-wire RS-232 port 7521/7521D 7522/7522D 7523/7523D 7522A/7522AD 7524/7524D 7527/7524D RXD TXD GND RS-232 Device RI CTS RTS DSR GND DTR TXD RXD DCD There are 3 wires as following: • Connect RXD to TXD of RS-232 device • Connect TXD to RXD of RS-232 device • Connect GND to GND of RS-232 device 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.5.3 Using a 5-wire RS-232 port 7521/7521D 7522/7522D 7523/7523D 7522A/7522AD 7524/7524D 7527/7527D RXD TXD GND RTS CTS RS-232 Device RI CTS RTS DSR GND DTR TXD RXD DCD There are 5 wires as follows: • Connect RXD to TXD of RS-232 device • Connect TXD to RXD of RS-232 device • Connect RTS to CTS of RS-232 device • Connect CTS to RTS of RS-232 device • Connect GND to GND of RS-232 device 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.5.4 Using a RS-485 port 7521/7521D 7522/7522D 7523/7523D 7522A/7522AD 7524/7524D 7527/7527D 7000 module GND 14 Ext. GND +VS 13 Ext. 24V D2- 12 D2+ 11 GND 10 Ext. GND +VS 9 Ext. 24V D2- 8 D2+ 7 Note: • The RS-485 interface can directly drive 256 sets of 7000 modules without a repeater 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.5.5 Using D/I/O of the 7521(D) (valid for 7521(D)/7522(D)/7524(D)) 7521 GND 13 Ext. GND +VS 12 Ext. 24V 1 Data+ D2- 11 2 TXD D2+ 10 3 RXD DI1/Init 9 4 N/C DI2 8 5 GND DI3 7 6 N/C DO1 6 7 CTS DO2 5 8 RTS DO3 4 Data- X1 3 X2 2 X3 1 9 COM1 Inductive load or Conductive load Dry contact or TTL/CMOS or (3.
1.5.6 Using D/I/O of the 7522A (D) (valid for 7522A(D)/7524(D)/7527(D)) 7522A GND 14 15 TXD3+ +VS 13 16 TXD3 - D2- 12 17 RXD3+ D2+ 11 18 RXD3 - INIT*t 10 19 DI0 RXD1 9 20 DI1 TXD1 8 21 DI2 GND 7 22 DI3 RTS1 6 Ext. GND 23 GND CTS1 5 Ext. 24V 24 PWR D1 - 4 25 DO0 DI+ 3 26 DO1 DI 2 27 DO2 DO 1 Dry contact or TTL/CMOS or (3.
1.5.7 Using a RS-485 of 7522A (D) 7522A TXD3+ 15 TXD3 - 16 7000 module GND 10 Ext. GND +VS 9 Ext. 24V D2- 8 D2+ 7 Note: • The RS-485 interface can directly drive 256 sets of 7000 modules without a repeater 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.6 Comparison Table 7521 series 4521 Module Name Intelligent Addressable Communication Controller RS-232 Converter CPU AMD 80188, 20M Hz MC68HC705, 3.
Comparison table of 7521, 7522 & 7523 series: 7521(D) 7522(D) 7523(D) CPU clock 80188, 20M Hz 80188, 20M Hz 80188, 20M Hz SRAM 128K 128K 128K Flash ROM 256K 256K 256K COM1 RS-232 or RS-485 with self-tuner inside RS-232 or RS-485 with self-tuner inside RS-232 or RS-485 with self-tuner inside COM2 RS-485 with self-tuner inside, 3000V isolation RS-485 with self-tuner inside, 3000V isolation RS-485 wtih self-tuner inside, 3000V isolation COM3 No Com3 RS-232 (txd,rxd,rts,cts) RS-232 (tx
Comparison table of 7522A, 7524 & 7527 series: 7522A(D) 7524(D) 7527(D) CPU clock 80188, 40M Hz 80188, 40M Hz 80188, 40M Hz SRAM 256K 256K 256K Flash ROM 512K 512K 512K COM1 RS-232 or RS-485 with self-tuner inside RS-232 or RS-485 with self-tuner inside RS-232 or RS-485 with self-tuner inside COM2 RS-485 with self-tuner inside RS-485 with self-tuner inside RS-485 wtih self-tuner inside COM3 RS-422/RS-485 RS-232 (txd,rxd,rts,cts) RS-232 (txd,rxd) (txd3-,rxd3+ , txd3+,rxd3-) COM4 N
I/O expansion bus No No No Support AsicKey Yes Yes Yes Operation system MiniOS7 MiniOS7 MiniOS7 Programming language TC/MSC/BC TC/MSC/BC TC/MSC/BC Program download COM1 COM1 COM1 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
1.7 Reconfiguring the 7521(D)/7522(D)/7523(D) From pin-4 to pin-8 of the 7521/7522/7523 there are three D/O & two D/I pins.
2. Operation Principles 2.1 System Mapping 2.1.1 Address Mapping of the 7521(D) Device Flash ROM SRAM COM1 BASE COM2 BASE Address mapping 256K: from C000:0000 to F000: FFFF 128K: from 0000:0000 to 1000:FFFF 0XFF80 to 0XFF88 0XFF10 to 0XFF18 Interrupt No. 0 1 2 3 4 5 6 7 8 9 0A 0B 0C 0D 0E-10 11 12 13 14 Interrupt mapping Divided by zero Trace NMI Break point Detected overflow exception Array bounds exception Unused opcode exception ESC opcode exception Timer 0 Reserved DMA-0 DMA-1 \INT0 of I/O expansio
2.1.2 Address Mapping of the 7522/7523(D) Device Flash ROM SRAM COM1 BASE COM2 BASE COM3 BASE COM4 BASE Address mapping 256K: from C000:0000 to F000: FFFF 128K: from 0000:0000 to 1000:FFFF 0XFF80 to 0XFF88 0XFF10 to 0XFF18 I/O expansion bus (programmable), 7522&7523 I/O expansion bus (programmable), 7523 only Interrupt No.
Address Mapping of the 7522A/7524/7527 Device Flash ROM SRAM COM1 BASE COM2 BASE Address mapping 512K: from 8000:0000 to F000: FFFF 256K: from 0000:0000 to 3000:FFFF 0XFF80 to 0XFF88 0XFF10 to 0XFF18 Interrupt No. 0 1 2 3 4 5 6 7 8 9 0A 0B 0C Interrupt mapping Divided by zero Trace NMI Break point Detected overflow exception Array bounds exception Unused opcode exception ESC opcode exception Timer 0 Reserved DMA-0 DMA-1 \INT0 of I/O expansion bus (COM3 for7522A&7524) (COM3/6 for7527) \INT1 of I/O expansi
2.1.3 Address Mapping of the X505, X506, X507 DI DO BASE COM3 INT BASE COM4 INT BASE COM5 INT BASE COM6 INT BASE COM7 INT BASE COM8 INT X505 N/A N/A 0X10 INT0 0X18 INT1 0X20 INT4 N/A N/A N/A N/A N/A N/A X506 N/A N/A 0X10 INT0 0X18 INT0 0X20 INT1 0X28 INT1 0X30 INT4 0X38 INT4 X507 0 0 0X10 INT0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
2.2 How to Debug User’s Programs The download_ports of the 7521 series are given as follows: • 7521/7522/7523/7522A/7524/7527 Use COM1 When the 7521 series is powered-up, it will initialize the download_port to the following configuration: • Start-bit=1, data-bit=8, stop-bit=1, no parity • Baud rate = 115200 BPS Then, the 7521 series will send all power-up information to the download_port.
2.3 How to Download User’s Program Refer to Sec. 1.5 to find the download_port first. The user can download the program into the 7521 series as follows: • Power-off PC & the7521 series • Install the download cable between download_port of the 7521 series & COM1 of PC (refer to Sec. 1.5.1) • Power-up PC & Run 7188X.
2.5 COM ports Comparison The COM port of the 7521 series can be RS-232 or RS-485 as follows: type Pins name 2-wire RS-485 Data+, Data3-wire RS-232 Txd,Rxd,Gnd 5-wire RS-232 Txd,Rxd,Gnd,Rts,Cts The programming of the 16C550 is very different from the 80188’s UART. The interrupt handling of the 80188 is also very different from the PC’s 8259. 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
The COM ports of the 7521 are given as follows: COM port Hardware COM1 80188’s on-chip UART-0, 5-wire RS-232 & 2-wire RS-485 COM2 80188’s on-chip UART-1, 2-wire RS-485 The COM ports of the 7522 are given as follows: COM port Hardware COM1 80188’s on-chip UART-0, 5-wire RS-232 & 2-wire RS-485 COM2 80188’s on-chip UART-1, 2-wire RS-485 COM3 16C550, I/O expansion bus, 5-wire RS-232 The COM ports of the 7523 are given as follows: COM port Hardware COM1 80188’s on-chip UART-0, 5-wire RS-232 & 2-wire RS-485 COM
The COM ports of the 7524 are given as follows: COM port Hardware COM1 80188’s on-chip UART-0, 5-wire RS-232 & 2-wire RS-485 COM2 80188’s on-chip UART-1, 2-wire RS-485 COM3 16C550, I/O expansion bus, 5-wire RS-232 COM4 16C550, I/O expansion bus, 5-wire RS-232 The COM ports of the 7527 are given as follows: COM port Hardware COM1 80188’s on-chip UART-0, 5-wire RS-232 & 2-wire RS-485 COM2 80188’s on-chip UART-1, 2-wire RS-485 COM3 16C550, I/O expansion bus, 5-wire RS-232 COM4 16C550, I/O expansion bus, 3-wir
2.6 The RS-485 Port & Self-Tuner ASIC The 2-wire RS-485 port is designed to directly drive 7000 series modules. It is a half-duplex 2-wire RS-485 network. Send/receive directional control in a 2-wire RS-485 network is very important. Therefore, the 7521 series equip a Self-Tuner ASIC controller for all RS-485 ports. The Self-Tuner ASIC controller will auto detect & control the send/receive direction of the RS-485 network.
2.7 Using Red LED & 7-SEG LED Display The red LED of the 7521 series can be turned-ON or turned-OFF by its software program. The 5 digits of the seven-segment LED are also programmable. The 5-digit LED is very useful in real world applications. It can be used to replace the monitor & touch-screen for many applications. 2.8 Using RTC & NVSRAM The RTC & NVSRAM are located on the same chip. There is a Li-battery to backup the RTC & NVSRAM for 10 years.
2.9 Using EEPROM The EEPROM is designed to store the data which is not changed very frequently. This data is given as follows: Module ID, configuration settings COM port configuration settings Small databases The erase/write cycle of the EEPROM is limited, the user should not change the EEPROM frequently for testing. The EEPROM can erase/write in single byte, so it is very useful in real world applications. 2.10 Using the Watchdog Timer The watchdog timer of the 7521 series is fixed at 1.6 sec.
2.11 Using the I/O Expansion Bus The 7000 series modules have been very successful in during the past three years. Over one hundred thousand modules have been shipped to locations all over the world.
The combination of serial & parallel interface make the I/O expansion bus very convenient & powerful for various industry applications. There are many design examples given in “I/O Expansion Bus in the 7188X/7188E User’s Manual”. All hardware circuit & software driver sources are OPEN for modification. From these examples, the user can make new applications or modify them for their special requirements.
2.11.1 Definition of an I/O Expansion Bus The I/O expansion bus of the 7521 series can be divided into 3 groups as follows: 1. Power supply & reset signals: VCC, GND, RESET, /RESET 2. , Parallel Bus: • System clock: CLOCKA • Asynchronous ready control: ARDY • Address bus: A0 ~ A6, A7 ( 7521 series without A7) • Data bus: D0 ~ D7 • Interrupt control: INT0, INT1, INT4 ( 7521 series without INT4) • Chip select & read/write strobe: /CS, /WR, /RD 3.
2.11.
JP2 pin definition & description: No Name Description 1 A0 Address bus 2 D0 Data bus 3 A1 Address bus 4 D1 Data bus 5 A2 Address bus 6 D2 Data bus 7 A3 Address bus 8 D3 Data bus 9 A4 Address bus 10 D4 Data bus 11 A5 Address bus 12 D5 Data bus 13 A6 Address bus 14 D6 Data bus 15 A7 or N/C This pin is reserved & must be N/C for 7521 series 16 D7 Data bus 17 INT4 or N/C Interrupt request input of channel 4(asynchronous, active high), this pin is reserved & m
2.11.3 Parallel Bus Timing Diagram t1 t3 t2 t4 Data Phase Address Phase CLKOUTA A12-A0 Address /CS /RD D7-D0 (Read) Data /WR D7-D0 (Write) Data Case 1 tw tw tw t4 Case 2 t3 tw tw t4 Case 3 t2 t3 tw t4 Case 4 t1 t2 t3 t4 Address Phase Data Phase CLKOUTA ARDY (Normally Not-Ready System) ARDY (Normally Ready System) . 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
2.11.4 I/O Expansion Boards I/O expansion board for prototype & test: Board Descriptions X000 Prototype Board ( Small size) XA/XC X001 Prototype Board ( Large size) XA/XC X002 Prototype Board XA/XB/XC/EX X003 Self-test board for 7188XC XC X004 Self-test board for 7188XB/EX XB/EX X005 Prototype Board ( small size) XB/EX X006 Prototype Board ( Large size) XB/EX More…... I/O expansion board for D/I, D/O, D/I/O, or Timer/Counter : X100 8 channels of D/I, 3.
I/O Expansion Board for A/D, D/A, D/I, D/O: X203 2 channels of 12-bit A/D(0~20mA) XB/EX X303 1 channel of 12-bit A/D(+/- 5V) and 1 channel of 12-bit D/A( +/- 5V) XB/EX X304 3 channels of 12-bit A/D(+/- 5V) and 1 channel of 12-bit D/A( +/- 5V) XB/EX X305 7 channels of 12-bit A/D(+/- 5V) and 1 channel of 12-bit D/A(+/5V) XB/EX More…... I/O Expansion Board for RS-232/422, D/I, D/O: X500 1 channel of RS-232, modem control, 115.2K max.
I/O Expansion Board for storage devices: X600/2 2M bytes NAND Flash XA/XB/XC/EX X600 4M bytes NAND Flash XA/XB/XC/EX X601 8M bytes NAND Flash XA/XB/XC/EX X602 16M bytes NAND Flash XA/XB/XC/EX X603 32M bytes NAND Flash XA/XB/XC/EX X607 128K battery backup SRAM XA/XB/XC/EX X608 512K battery backup SRAM XA/XB/XC/EX More…... Refer to “I/O Expansion Bus in the 7188X/7188E User’s Manual” for more information. 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
3. Applications 3.1 Embedded Controllers MMICON (or PC or touch-screen) RS-232 RS-485 7521 series 7000 module 7000 module Applications: 4500 replacement & enhancement (not compatible) PC-Based controller replacement PLC replacement Special controller replacement The 7521 series can be use as embedded controller for general applications. Therefore it can be used to replace PC, PLC or special controllers.
3.2 Addressable RS-232 Protocol Converter 7520 RS-485 RS-232 Host PC RS-232 Device-1 RS-232 Device-2 7523 or 7523D RS-232 Device-n RS-232 Device-n+1 7523 or 7523D RS-232 Device-3 RS-485 RS-232 Device-n+2 RS-485 Applications: 4521 replacement & enhancement Multiple RS-232 devices networking The key points are given as following: Connect RS-232 devices to COM1/3/4 of 7523/7523D Connect COM2 of 7523/7523D to RS-485 network 7523/7523D communicates to its local RS-232 devices & stores data.
3.3 Local Real Time Controller 7520 RS-232 RS-485 Host PC RS-485 RS-485 7521sertes (address-1) RS-485 7521series (address-n) 7000 module 7000 module 7000 module 7000 module RS-485 The 7000 series modules are slave devices; the control programs are implemented in host PC. The working steps are given as follows: 1. PC sends out commands to 7000 modules for input data. 2. PC analyzes this input data & generates some output data 3.
3.4 Remote Local Controller RS-232 Host PC telephone line RS-232 RS-485 7521 series+X500 7000 module 7000 module The control program is implemented in a local 7521 series. The 7521 series will directly control the 7000 modules based on these control arguments.
3.5 I/O Expansion of PLC applications PLC COM1:RS-232 COM2:RS-485 7521 series 7000 series There is a Man Machine Interface in most PLCs. This interface is originally designed for MMI applications. The 7521 series can use this interface to build a bridge between PLC & 7000 modules. The 7521 series can directly read/write the internal memory of the PLC. Therefore the PLC can access the 7000 input modules as follows: 1. The 7521 series sends commands to the 7000 input modules 2.
3.6 Radio Modem Applications Configuration 3 Point to multi-point application Device A Device C SST-900/SST-2400 setting: (Device A) RS-232 Half-duplex mode Synchronous way Slave state Baud rate=9600 Channel=3 Frequency=915.968MHz The 7521 series is a embedded controller. Because the 7521 series is programmable, it can be used as a bridge between the SST-900 & external devices. These devices can be PLC, controller or 7000 modules.
3.7 Using 4 COM port Application-1 COM1:RS-232 PC PLC COM4:RS-232 COM3:RS-232 COM2:RS-485 7523 MMICON 7000 Series SST-900/SST-2400 Radio Modem SST-900/SST-2400 Radio Modem 7000 series COM1: PLC can access the I/O states of 7000 modules COM2: Directly controls the 7000 input/output modules COM3: MMICON is used as the local MMI COM4: PC is used to monitor & record the system data. Note: the 7523 has 4 COM port. 7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.
