QX81-S2 Smart Relay Module | InnoTech ProSeries I/O Controller, DIN-Rail PLC Interface, Industrial Gateway Device

QX81-S2 industrial controller

QX81-S2 Modbus module

QX81-S2 24V DC I/O

QX81-S2

QX81-S2 industrial controller integrates Modbus module and 24V DC I/O, delivering robust automation control for industrial systems with reliable communication and power efficiency.

Specification

SEODescription

The QX81-S2 industrial controller is a robust automation solution designed for industrial environments, featuring 16 digital inputs and 16 digital outputs via its integrated QX81-S2 24V DC I/O system. It supports direct connection to up to 8 expansion modules, enabling flexible scalability for diverse applications. Equipped with the QX81-S2 Modbus module, it ensures seamless communication via Modbus RTU/TCP protocols and Ethernet interfaces, facilitating integration with PLCs, sensors, and SCADA systems. Operating within a wide voltage range of 18-30V DC and a temperature range of -20°C to 60°C, it is ideal for harsh settings in manufacturing, energy, and process automation. Key strengths include high reliability, modular design, and compatibility with industrial standards, though its complexity may require specialized configuration expertise.

SEOSpecification

Parameter	Specification
Model	QX81-S2 Industrial Controller
Input/Output Configuration	24V DC I/O (16 digital inputs, 8 relay outputs)
Communication Protocol	QX81-S2 Modbus Module (RTU/TCP/IP)
Operating Voltage	24V DC ±10%
Power Consumption	≤5W (typical)
Isolation Protection	2.5kV optical isolation on I/O channels
Operating Temperature	-20°C to +60°C
Certification	CE, RoHS, IP20 protection
Installation	DIN rail mounting (35mm)

SEOQandA

question:How can I make a payment?
answer:We accept TT, PayPal, and other major payment methods.
question:Do you accept payment after delivery?
answer:Payment must be settled before shipment via upfront transfer or LC.
question:Can I arrange self-pickup with official courier?
answer:Yes, self-pickup via official courier is allowed with prior scheduling.

SEOQandA_Product

question:How to resolve QX81-S2 connection failure?
answer:Check Ethernet cable, ensure proper port LED status, restart device, and verify network settings.
question:Why does QX81-S2 power cycle repeatedly?
answer:Test power adapter, confirm stable voltage, or replace faulty power supply.
question:How to fix unstable QX81-S2 signal output?
answer:Relocate device from interference sources, use shielded cables, or adjust antenna position.
question:QX81-S2 settings not saving after reboot?
answer:Reset to factory defaults, reconfigure parameters, and ensure firmware is up-to-date.
question:QX81-S2 firmware update fails mid-process?
answer:Ensure stable network connection, download correct firmware version, and retry update procedure.