Module RS-232/485 Ethernet Modbus RTU/TCP 8 khe cắm module I/O ICP DAS iP-8841-MTCP CR

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8-slot Modbus TCP I/O Expansion Unit (Modbus TCP Protocol)

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Module RS-232/485 Ethernet Modbus RTU/TCP 8 khe cắm module I/O ICP DAS iP-8841-MTCP CR


• 2 independent Ethernet ports
• Supports Modbus TCP
• Supports Modbus RTU/ASCII
• Supports Modbus TCP to RTU Gateway
• Auto Configuration
• 8 I/O Slots for I-8K and I-87K Series Modules 


iP-8841-MTCP series is a Modbus TCP I/O expansion unit to expand I-8K and I-87K series I/O modules over the Ethernet 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. Further more, the iP-8841-MTCP is also a c language based programmable controller that equipped a DOS-like OS (MiniOS7). Programmers can use C compilers that can create 16 bit executable file (*.exe) to customize the Modbus firmware which preinstalled in the iP-8841-MTCP. The SDK provides rich functions for Modbus communication, such as Modbus TCP master/slave, Modbus RTU master/salve, Modbus ASCII master/slave, etc.


  • Factory, Building and Home Automation Remote Maintenance.


OS MiniOS7
Development C Language
CPU Module
CPU 80186 or compatible, 16-bit and 80 MHz
Flash 512 KB
NVRAM 31 Bytes
SRAM 768 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 1 x Run, 1 x Module offline, 1 x 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
Ports 2 x RJ-45, 10/100 Base-TX
Protocol Modbus TCP Slave, Modbus TCP to RTU Gateway
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




Ordering Information

iP-8841-MTCP CR  8-slot Modbus TCP I/O Expansion Unit (Modbus TCP Protocol) (RoHS)

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