Data Acquisition


• Supports Modbus RTU/ASCII Slave
• Auto Configuration
• LED Indicators for Fault Detection
• 8 I/O Slots for I-8K and I-87K Series Modules 


iP-8000-MRTU series is a Modbus serial I/O expansion unit to expand I-8K and I-87K series I/O modules over the serial port for industrial monitoring and controlling applications. There are more than 50 I/O modules supported with the unit, including analog input/output, digital input/output, counter, frequency I/O modules. It is designed to be used in harsh and noisy environment, so the hardware is manufactured with wide power input range (10 ~ 30 VDC), isolated power input and can operate under wide temperature (-25 ~ +75 °C). To simplify installation and maintenance of I/O modules, it provides many useful features, such as: auto configuration, LED indicators for fault detection, dual watchdog to keep alive, programmable power on and safe values for safety.

Modbus is a very wide known protocol in the industrial manufacturing and environment monitoring fields. Many SCADA software, HMI and PLC has builtin driver to support Modbus devices. Besides, we also provide SDK on different platforms, such as Windows XP, Window CE 5.0/6.0, Linux, MiniOS7. Therefore, it is very easy to integrate remote I/O to customer’s applications.


 OS MiniOS7
 Development C Language


 CPU Module
 CPU 80186 or compatible, 16-bit and 80 MHz
 64-bit Hardware Serial Number Yes
 Flash 512 KB
 NVRAM 31 Bytes
 SRAM 512 KB SRAM, 512 KB Dual battery backup SRAM
 Storage Expansion 4 GB microSD card (up to 32 GB)
 Real Time Clock Provide seconds, minutes, hours, dates, day of week, month, year
 Watchdog Timer Yes


 Type 5 x Digit 7 Segment LED Display


 LED Indicators
 Status 3 x System (RUN, ERR, WDT), 1 x Power


 I/O Expansion
 I/O Type I-8K, I-87K series
 Slots 8


 COM Ports
 Ports 2 x RS-232, 1 x RS-485 (3000 VDC Isolated), 1 x RS-232/RS-485
 Protocol Modbus RTU/ASCII Slave


 Buzzer Yes
 DIP Switch 8-bit for address
 Push Button 4


 Input Range +10 ~ 30 VDC (1 kV Isolated )
 Redundant Power Inputs Yes
 Consumption 7.2 W


 Dimensions (mm) 355 x 132 x 111 (W x L x H)
 Installation DIN-Rail, Wall Mounting


 Operating Temperature -25 ~ +75 °C
 Storage Temperature -30 ~ +80 °C
 Humidity 10 ~ 90% RH, Non-condensing



 iP-8811-MRTU     CR  8-slot Modbus RTU I/O Expansion Unit (Modbus RTU/ASCII Protocol) (RoHS) 1