1 Tu Sitio de Automatización! Description Modbus is very wide known protocol in the industrial manufacturing and environment monitoring fields. It is suit master-slave or query-response distributed I/O applications. The unit is pre-installed a Modbus gateway firmware. Therefore PC, HMI or PLC can use Modbus/TCP or Modbus/RTU protocol to communicate with I/O modules that uses Modbus/RTU protocol and link to any COM port of the gateway. Besides the gateway functionality, it is also a C language based programmable controller that equipped a DOS-like OS (MiniOS7). Users can use C compilers that can create 16 bit executable file (*.exe) to develop a program then download it to the controller. That let the controller work standalone. There are two free charge version compilers ( Turbo C 2.0 and Turbo C ), we suggest users to use the Turbo C Using the software development toolkits that we provide can customize the firmware. The SDK provides rich functions for Modbus communication, such as Modbus/TCP master/slave, Modbus/RTU master/salve, Modbus/ASCII master,... etc. Further more, calling relative COM port functions (such as IsCom, ReadCom, ToCom,...etc), you can convert other non-standard protocol to Modbu/TCP or Modbus/RTU. That is to say, the controller can be a protocol converter, too.
2 Modbus SDK ( in C language ) If the default firmware doesn't totally suit your requirement. You can use Modbus SDK to modify the default firmware to add extra functions. The Modbus SDK has below features: Supports extra user-defined command protocol (TCP/IP) Modbus/TCP protocol supports 2 basic data format (bit and 2-byte integer). It means if clients (or called masters) don't support Modbus/TCP or you need other format data (for example: string of floating value), i-7188es (with default firmware) cannot communicate with them. Using this feature, you can develop your special command protocol to transfer any format of data. Register based programming method (easy to use) Modbus library supports 4 internal register tables (imemory_ai, imemory_ao, imemory_di, imemory_do), you can use these to store specific information. When Modbus/TCP clients request to i-7188e, Modbus kernel will response information from these 4 tables. Provides user-defined registers The 4 internal register tables are all open to users. You need to assign these tables by yourself. Can Iink to Modbus/TCP slave devices By using function ModbusTCP_Master2Slave(declared in MBTCP_7E.h),the 7188EX- MTCP can link 8 max. Modbus/TCP device. Can link to Modbus/RTU slave devices By using function ModbusMaster2Slave (declared in MBTCP_7E.h), Modbus/RTU devices can be easily integrated to internal registers of i-7188es. An i-7188e polling every Modbus/RTU devices and put every necessary information to internal registers. Clients only ask the i-7188e to get all information of Modbus/RTU devices. That reduces loading of Clients.
3 Can link to non-modbus/rtu serial devices Some serial devices don't support Modbus/RTU. We provide functions to let i-7188e -MTCP access serial devices. You can put information to internal registers of it. Thus, the non- Modbus serial devices can also support Modbus/TCP. Xserver SDK compatible Modbus SDK is based on Xserver SDK. To lear more programming skills, you can refer demos of Xserver. To get information of demos of Xserver, please refer to CD:\Napdso\7188e\TCP\Xserver\Xserver.htm Modbus Utility We provide Modbus tools for Windows 98/SE/NT/2K/XP, it includes: 1. Modbus Utility o On-line configuration via Ethernet o On-line help o Automatically generate register mapping tables o Configuration export/imp 2. MBRTU Modbus/RTU client (with source code in VB6) to diagnostic Modbus/RTU slave devices. 3. MBTCP Modbus/TCP client (with source code in VB6) to diagnostic Modbus/TCP slave devices.
4 Hardware I-7188EX-MTCP I-7188E2-MTCP upac-7186ex-mtcp Model SRAM Flash EPROM I/O expansion bus 64-bit hardware serial number RTC Ethernet Port i-7188ex-mtcp 40M Hz 512K 512K 2K 10 Base-T i-7188e2-mtcp 40M Hz 384K 512K 2K No No No 10 Base-T μpac-7186ex- MTCP 80M Hz 512K 512K 16K 10/100 Base-TX COM1 (Note1) RS-232 (Note1) RS-232 (Note1) RS-232 (Note1) COM2 (Note2) RS-485 (Note2) RS-485 (Note2) RS-485 (Note2) I-7188EX-MTCP SRAM Flash Memory EEPROM NVRAM RTC (Real Time Clock) 64-bit Hardware Serial Number Built-in Watchdog Timer Communication Interface COM1 COM2 Ethernet Port 80188, 40MHz or compatible 2K Bytes 31 Bytes (battery backup, data valid up to 10 year) RS-232 (TXD, RXD, RTS, CTS, GND) RS-485 (D2+, D2-) 10BASE-T NE2000 compatible Ethernet Controller
5 COM Port Formats Data bit 7, 8 Parity Even, Odd, None Stop bit 1 LED Display 5-Digit 7 Segment LED (for i-7188exd-mtcp only) Display System LED Indicator Hardware Expansion I/O expansion bus User defined I/O pins 14 pins Dimensions i-7188ex(d)-mtcp 123mm x 72mm x 33mm Operating Environment Operating Temperature -25 C to +75 C Storage Temperature -40 C to +80 C Power Protection Power reverse polarity protection Required Supply Voltage +10 to +30V/DC (non-regulated) Power consumption 2W for i-7188ex-mtcp 3W for i-7188exd-mtcp I-7188E2-MTCP 80188, 40MHz or compatible SRAM Flash Memory EEPROM 2K Bytes Built-in Watchdog Timer Communication Interface COM1 RS-232 (TXD, RXD, RTS, CTS, GND) COM2 RS-485 (D2+, D2-) Ethernet Port 10BASE-T NE2000 compatible Ethernet Controller COM Port Formats Data bit 7, 8 Parity Even, Odd, None Stop bit 1
6 LED Display 5-Digit 7 Segment LED Display System LED Indicator Dimensions i-7188e2(d)-mtcp Operating Environment Operating Temperature Storage Temperature Power Protection Required Supply Voltage Power consumption (for i-7188e2d-mtcp only) 123mm x 72mm x 33mm -25 C to +75 C -40 C to +80 C Power reverse polarity protection +10 to +30V/DC (non-regulated) 2W for i-7188e2-mtcp 3W for i-7188e2d-mtcp upac-7186ex-mtcp SRAM Flash Memory EEPROM NVRAM RTC (Real Time Clock) 80186, 80MHz or compatible 16K Bytes 31 Bytes (battery backup, data valid up to 10 year) 64-bit Hardware Serial Number Built-in Watchdog Timer Communication Interface COM1 COM2 Ethernet Port COM Port Formats Data bit 7, 8 Parity RS-232 (TXD, RXD, RTS, CTS, GND) RS-485 (D2+, D2-) 10/100Base-TX Ethernet Controller Auto-negotiating, Auto_MDIX, LED indicator) Even, Odd, None
7 Stop bit 1 LED Display 5-Digit 7 Segment LED Display (for μpac-7186exd-mtcp only) System LED Indicator Hardware Expansion I/O expansion bus User defined I/O pins Dimensions μpac-7186ex(d)-mtcp Operating Environment Operating Temperature Storage Temperature Power Frame Ground for ESD Protection Protection Required Supply Voltage Power consumption 14 pins 123mm x 72mm x 33mm -25 C to +75 C -40 C to +80 C Power reverse polarity protection +10 to +30V/DC (non-regulated) 1.5W for μpac-7186ex-mtcp 2.5W for μpac-7186exd-mtcp Applications Basic application 1: protocol converter An i-7188e -MTCP runs a default firmware to become a single Modbus/TCP to multi-modbus/rtu converter. You can simply use the Modbus Utility to configure the device and then set connection between SCADA, HMI software and the i-7188e.
8 Basic application 2: protocol converter with VxComm technique An i-7188e -MTCP is also be able to link to serial devices that don't support Modbus/RTU. To use this function, you will need to install VxComm driver on host PCs. After installation, you will be able to access the remote COM ports via the standard serial driver. Advanced application 1: Modbus/TCP controller Using the Modbus SDK, users can develop their own custom Modbus firmware, allowing extra functions, integration of serial devices and a Xboard to the Modbus/TCP kernel. Thus an i-7188e can become a powerful controller.
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