Selec MiBRX 6M Modular PLC
Selec MiBRX-6M Modular PLC Base Module – 230V / 24VDC, 6-Slot PLC with Ethernet
High-capacity 6-slot modular PLC with optional Ethernet/MQTT, RS485 Master+Slave, dual fast inputs, RTC, 1MB data memory, relay/transistor expansion, and advanced I/O flexibility for complex OEM automation.
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The Selec MiBRX-6M is a high-performance modular PLC designed for advanced industrial automation, featuring six I/O slots, optional Ethernet/MQTT connectivity, dual fast inputs, RS485 Master+Slave ports, RTC, large program/data memory, and wide compatibility with Selec's modular I/O architecture. It is ideal for medium–high complexity OEM and process automation systems.
Key Features
6 I/O card slots for digital/analog/relay/transistor/AO/load-cell/fast I/O
Optional Ethernet Modbus TCP + MQTT communication (24 VDC isolated models)
RS485 Modbus RTU Master + Slave ports
Dual Fast Inputs (5 kHz) for encoder applications (models with 12 DI and 8 DI)
Up to 12 Digital Inputs depending on variant
Built-in RTC with ±4 sec/day drift
1 NTC analog input + additional AI on slot cards
LCD 2×8 backlit display with 6 keys (5 user configurable)
240 KB to 480 KB program memory + 1 MB data memory (Ethernet models)
USB (Micro-B) port for communication (Ethernet variants)
DIN-rail mount, IP50 display, IP20 terminals
Advanced automation blocks: PIDT, Ramp Soak, FTC, Totalizer, Rate, Analog Scaling, etc.
Technical Specifications
| Parameter | Specification |
|---|---|
| Mounting | DIN Rail |
| Display | LCD 2×8 characters (backlit) |
| I/O Slots | 6 |
| Digital Inputs | 8 / 10 + 1 / 12 depending on model, incl. 1 or 2 fast inputs |
| Fast Input Speed | 5 kHz (Quadrature/Uni/Bidirectional/Dual Uni) |
| Analog Inputs | 1 NTC + additional via cards (TC/RTD/V/mA/PT1000/NTC) |
| Relay Outputs | 4 relays onboard + card-based expansion |
| Transistor Outputs | Via slot card (4 PNP sourcing outputs) |
| Analog Outputs | 0–10V / 0–20mA via AO cards |
| Communication | RS485 Master+Slave; Ethernet TCP/MQTT (selected models); USB Micro-B |
| Program Memory | 240 KB / 480 KB depending on model |
| Data Memory | Up to 1 MB (Ethernet variants) |
| EEPROM | 4 KB |
| Scan Time | 200 µs min, 1 ms typical |
| RTC | Yes (±4 sec/day) |
| Supply Voltage | 230VAC OR 24VDC (isolated) |
| Power Consumption | 8 VA (AC) / 8W (DC) |
| Operating Temperature | 0–55°C |
| IP Rating | Display IP50, Terminals IP20 |
| Dimensions | 105 × 94 × 67 mm |
| Weight | 250–270 g |
Applications
OEM automation machinery (complex multi-sensor control)
SCADA-connected PLC networks (Ethernet/MQTT)
Conveyor automation & encoder-based position control
Packaging & batching machines
HVAC / environmental monitoring systems
Process control with RTC scheduling
Multi-channel data acquisition & logging
What’s in the Box?
MiBRX-6M PLC Base Unit
Terminal connector blocks
User manual (digital)
Warranty card
FAQ
Q1. Which models include Ethernet communication?
The 24 VDC isolated power supply variants include Ethernet, Modbus TCP, MQTT, and USB connectivity.
Q2. How many fast inputs are available?
Depending on the model, 1 or 2 fast inputs are available for encoder applications at 5 kHz.
Q3. Does it support analog sensors?
Yes—the base unit supports NTC and additional AI via slot cards (TC/RTD/V/mA/PT1000/NTC).
Q4. Can it operate as a Modbus master and slave simultaneously?
Yes, it has RS485 master and slave ports for expansion modules and PLC networking.
Q5. Does the PLC include RTC?
Yes, the PLC includes RTC with ±4 seconds/day drift.
Q6. Is data logging supported?
Yes, via the MiBRX-SC-DL datalogger card (2MB + RTC).