Selec MiBRX 2M Sized Modular PLC
Selec MiBRX-2M Modular PLC Base Module – 24VAC / 24VDC, 2-Slot Micro PLC
Compact 2-slot modular PLC with DIN-rail mounting, pluggable display, RS485 Modbus RTU, fast counter input (24VDC), relay/transistor expansion options, and analog input capability for RTD/TC/NTC.
The Selec MiBRX-2M is a compact DIN-rail mount modular PLC designed for OEM applications that require a flexible 2-slot architecture, pluggable or independent displays, RS485 Modbus RTU communication, relay/transistor card options, and support for analog measurement inputs including RTD, TC, and NTC. It is ideal for small-to-medium control logic applications.
Key Features
Modular PLC with 2 I/O card slots
Pluggable or independent display options (LED or blind display)
RS485 Modbus RTU communication
3 digital inputs, including Fast Counter input in the 24 VDC model (5 kHz)
Supports NTC + multiple analog input types (TC, RTD, mV, V, mA, PTC) via I/O cards
Relay & transistor output expansion possible
112 KB program memory, 16 KB data memory
Minimum scan time 200 µs
DIN-rail (35 mm) mounting
Low power consumption: 4VA / 4W
Compatible with wide MiBRX I/O card ecosystem (relay, DI, AI, AO, load cell, fast I/O, Wi-Fi, datalogger)
Technical Specifications
| Parameter | Specification |
|---|---|
| Mounting | DIN rail (35 mm) |
| I/O Slots | 2 slots |
| Digital Inputs | 3 DI (both variants), incl. 1 Fast Input for 24VDC model |
| Fast Input | 5 kHz (unidirectional/bidirectional/quadrature/dual-uni) |
| Analog Input | 1 NTC + optional via card (TC, RTD, 0–10V, 0–20 mA) |
| Digital Outputs | Via slot cards (2-5 relays or 4 transistor outputs) |
| Analog Outputs | Via card (0–10V / 0–20mA) |
| Communication | RS485 Modbus RTU (Slave) |
| Program Memory | 112 KB |
| Data Memory | 16 KB |
| RTC | Available with MiBRX-SC-DL card |
| Scan Time | 200 µs (min), 1 ms typical |
| Power Supply | 24 VAC or 18–30 VDC |
| Power Consumption | 4VA (AC) / 4W (DC) |
| Operating Temp | 0–55°C |
| IP Rating | Display: IP50, Terminals: IP20 |
| Dimensions | 35 × 94 × 67 mm |
| Weight | 90 g |
Applications
Compact PLC control panels
OEM machines
HVAC equipment logic
Packing and dosing machines
Monitoring and feedback control
Encoder-based counter applications (24 VDC variant)
What’s in the Box?
MiBRX-2M PLC base module
Terminal connector block
User manual (digital)
Warranty card
FAQ
Q1. What is the difference between 24VAC and 24VDC models?
The 24 VDC model supports fast counter input, while both provide 3 DI and expansion slots.
Q2. Can the MiBRX-2M log data?
Yes, when used with the MiBRX-SC-DL datalogging card (2MB + RTC).
Q3. Can analog sensors be connected?
Yes, the base supports 1 NTC and additional analog inputs via AI cards (TC, RTD, PT1000, V, mA).
Q4. Does it support relay outputs?
Yes, through relay I/O cards (2/3/4/5 relay slots).
Q5. Can it work as an encoder counter?
Yes, the 24 VDC model supports 5 kHz fast encoder modes.