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Brand: ExpertDAQ
ExpertDAQ EX9188E5-M Embedded DOS Controller
Description
Overview
The ExpertDAQ EX9188E5-M is an embedded industrial controller based on the EX-9188 platform, combining a DOS operating environment with Ethernet LAN, 4 RS-232 serial ports, and 1 RS-485 port. It provides 512 k flash memory for the application and 512 k SRAM for runtime data, together with a real-time clock, making it a self-contained platform for data acquisition, protocol conversion, and front-end control applications in industrial networks.
Seven Star LLC supplies the ExpertDAQ EX9188E5-M controller for automation and instrumentation projects across the Sultanate of Oman and the GCC. Water and wastewater, power, oil and gas, and industrial plant rely on embedded controllers for data concentration and protocol conversion, and our team provides genuine ExpertDAQ hardware with regional delivery to Muscat, Sohar, Salalah, and beyond.
Operating Principle
Embedded controllers in the EX-9188 family run user-developed control and communication programs in a real-time DOS environment. The EX9188E5-M communicates with field devices over its serial ports — 4 RS-232 channels for instruments, serial devices, and terminal equipment, plus 1 RS-485 port for multi-drop sensor and I/O networks — and with the wider plant network over Ethernet LAN.
With Modbus support, the controller can act as a data concentrator: gathering values from Modbus field devices on the serial network and making them available to SCADA or the plant LAN, or converting between protocols. The real-time clock timestamps data and schedules control actions without host dependency.
Engineering Design of the ExpertDAQ EX9188E5-M
The EX9188E5-M is designed as a compact embedded platform for DIN-rail or panel installation in industrial cabinets. Its memory architecture — 512 k flash for program and configuration storage and 512 k SRAM for runtime operation — suits data acquisition and communication applications, and the battery-backed real-time clock keeps time through power interruptions.
The combination of Ethernet and multiple serial ports makes the controller a practical building block for small data acquisition systems, front-end processors, and remote terminal units. Programs are developed for the DOS environment, giving engineers direct control over serial timing and protocol handling, which is often required when integrating legacy field devices.
Key Features
The ExpertDAQ EX9188E5-M is specified for embedded control and data concentration applications. Its defining characteristics are:
- Embedded DOS controller from the ExpertDAQ EX-9188 family.
- Ethernet LAN for plant network connectivity.
- 4 RS-232 serial ports for instruments and terminal devices.
- 1 RS-485 port for multi-drop field networks.
- 512 k flash memory and 512 k SRAM for application and runtime data.
- Real-time clock (RTC) for timestamping and scheduling.
- Modbus support for data concentration and protocol conversion.
- Supplied by Seven Star LLC for automation projects across Oman and the GCC.
Industrial Applications
The EX9188E5-M is applied where field devices must be concentrated, converted, or controlled locally. Typical roles include serial-to-Ethernet data concentration for instrument networks, Modbus RTU master or slave front-ends for SCADA, and remote terminal units for monitoring stations in water, power, and process applications. Its multiple serial ports allow several legacy devices to be integrated into modern plant networks without replacing field equipment.
Seven Star LLC supports automation engineers across the Sultanate of Oman and the GCC with the ExpertDAQ EX9188E5-M and the complete EX-9000 series. We provide controllers on request with integration guidance, so that data concentration projects from Muscat to Salalah are built on documented components.
Technical Specifications
The following table summarises the key parameters of the ExpertDAQ EX9188E5-M controller:
| Parameter | Specification |
|---|---|
| Model | ExpertDAQ EX9188E5-M |
| Product type | Embedded DOS controller |
| Network interface | Ethernet LAN |
| Serial ports | 4 x RS-232, 1 x RS-485 |
| Flash memory | 512 k |
| SRAM | 512 k |
| Real-time clock | Yes |
| Protocol support | Modbus |
Request a Quote for ExpertDAQ EX9188E5-M Embedded DOS Controller
Request a formal quotation for the ExpertDAQ EX9188E5-M embedded controller through the Seven Star LLC RFQ portal, and our team will confirm availability, lead time and delivery to Oman or any GCC destination. As a trusted supplier of ExpertDAQ data acquisition hardware in the region, we also provide datasheets and integration support for serial and Modbus applications. Contact Seven Star LLC today.
Integration Notes for the EX9188E5-M
Develop the application for the DOS environment with attention to serial port configuration: the 4 RS-232 ports serve point-to-point devices, while the 1 RS-485 port carries multi-drop field networks. With Modbus support, the controller can concentrate data from field devices and serve them to SCADA over Ethernet LAN. The real-time clock timestamps events and maintains time through power interruptions. Seven Star LLC provides integration guidance and genuine ExpertDAQ hardware for projects in Oman and the GCC.
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Also available: ExpertDAQ EX9044D RS485 Digital I/O Module
Where the ExpertDAQ EX9188E5-M is used
- Data acquisition systems
- Protocol conversion
- Front-end control
- Water and wastewater plants
- Power and oil and gas plants
Selection checklist for the ExpertDAQ EX9188E5-M
- Serial port count
- RS-232 devices
- RS-485 network
- Ethernet link
- Program size
- Runtime data size
- Mounting method
- Protocol needs
Installation, commissioning and maintenance notes for the ExpertDAQ EX9188E5-M
Mount the controller in the cabinet on a DIN rail or a panel. Connect the serial devices and the Ethernet link and load the program. Check the clock, the connections and the program at regular intervals.
Requesting a quotation for the ExpertDAQ EX9188E5-M
Please send the serial device list and the protocol needs. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.
EX9188E5-M controller type
It is an embedded industrial controller.
EX9188E5-M maker
It is made by ExpertDAQ.
EX9188E5-M platform
It is based on the EX-9188 platform.
EX9188E5-M operating environment
It runs a DOS operating environment.
EX9188E5-M real-time DOS
User programs run in a real-time DOS environment.
EX9188E5-M Ethernet
It has an Ethernet LAN port.
EX9188E5-M RS-232 ports
It has 4 RS-232 serial ports.
EX9188E5-M RS-485 port
It has 1 RS-485 port.
EX9188E5-M RS-232 use
The RS-232 channels connect instruments, serial devices and terminal equipment.
EX9188E5-M RS-485 use
The RS-485 port serves multi-drop sensor and I/O networks.
EX9188E5-M flash memory
It has 512 k flash memory for the application.
EX9188E5-M SRAM
It has 512 k SRAM for runtime data.
EX9188E5-M clock
It has a real-time clock.
EX9188E5-M clock backup
A battery keeps the clock running through power interruptions.
EX9188E5-M timestamps
The clock timestamps data and schedules control actions.
EX9188E5-M standalone use
It works as a self-contained platform without a host.
EX9188E5-M Modbus
It supports Modbus.
EX9188E5-M data concentrator
It can gather values from Modbus field devices.
EX9188E5-M SCADA link
It makes the values available to SCADA or the plant LAN.
EX9188E5-M protocol conversion
It can convert between protocols.
EX9188E5-M mounting
It is a compact platform for DIN-rail or panel installation.
EX9188E5-M building block
It is a practical block for small data acquisition systems.
EX9188E5-M front-end
It also suits front-end processors and remote terminal units.
EX9188E5-M delivery
Delivery is arranged to Muscat, Sohar, Salalah and beyond.
Controller records for the ExpertDAQ EX9188E5-M
Record the program version, the port settings and the date of each check.
Choosing the right ExpertDAQ EX9188E5-M port layout
Choose the controller from the number of serial devices on the site.
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About brand
ExpertDAQ is the name on the EX9000 series of remote I/O modules and converters made by TOPSCCC, a Taipei company founded in 1987. The modules add analog and digital channels to a PC or controller over an RS-485 bus. Seven Star LLC, an independent supplier in Oman, lists the EX9520 isolated converter, the EX9017F analog input module, the EX9044D digital I/O module and the EX9188E5-M embedded controller.
ExpertDAQ EX9000 module families
The manufacturer sorts the EX9000 modules by function: converters, digital input and output modules, relay and solid state output modules, analog input and output modules, and counter and frequency modules. They communicate on RS-485 using Modbus RTU, and a separate group of MTCP models has an Ethernet port. The EX9188 series are small embedded controllers that can run a program locally. A typical small system uses one EX9520 to connect the RS-485 line to a serial port and a row of I/O modules behind it.
Ordering ExpertDAQ modules: what we need
Send the full model number with every suffix letter, since suffixes separate versions with a display, a faster input or a different protocol. State the protocol your software expects, the signal types and ranges, and the number of channels. For expansions of existing panels in the GCC, tell us the modules already on the bus so the new ones are requested with compatible settings.
Browse ExpertDAQ products by category: Industrial Communications.
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Frequently Asked Questions
The EX9188E5-M is an embedded DOS controller from the ExpertDAQ EX-9188 family with Ethernet LAN, 4 RS-232 ports, 1 RS-485 port, 512 k flash, 512 k SRAM, and a real-time clock.
It is used for data concentration, protocol conversion, and front-end control, including Modbus master or slave applications and serial-to-Ethernet integration of field devices.
The controller provides 4 RS-232 ports and 1 RS-485 port, allowing several instruments and multi-drop field networks to be connected.
Yes, the EX9188E5-M supports Modbus, enabling it to concentrate data from Modbus field devices and serve SCADA or plant networks.
Yes. Seven Star LLC supplies genuine ExpertDAQ data acquisition and control hardware, including the EX9188E5-M, throughout the Sultanate of Oman and the GCC with regional delivery and technical support.

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