🎯 Purpose

The Squid-5N-IO is a microprocessor-based multi-channel communication module designed for:

• 📡 collecting analog and discrete signals from sensors and actuators;
• ⚙️ controlling output channels within automated control systems (ACS TP) and telemetry;
• 🌐 transmitting information and receiving commands via mobile networks (GPRS/3G/4G) and RS-485, USB interfaces – for configuration and logging;
• 🛡 enabling remote monitoring, diagnostics, and dispatching of technological processes.

The module serves as a universal input/output node for SCADA systems, PLCs, and IoT solutions.

🔧 Functional Capabilities

📊 Data acquisition from built-in inputs:

• up to 12 digital inputs (support for PNP/NPN signals);
• up to 8 analog inputs (standardized signals: 0–5 mA, 0–20 mA, 4–20 mA, 0–10 V).

⚡ Output control:

• up to 4 digital outputs (relay or transistor, depending on the modification);
• modes: permanent (on/off);
• safe state of outputs in case of communication loss.

🔄 Communication:

• Modbus RTU protocol via RS-485;
• mobile Internet (GPRS/3G/4G) for transmitting data to a server or SCADA;
• USB port for configuration and local diagnostics.

💾 Archiving and buffering:

• local data storage on a MicroSD HC card;
• automatic sending of archives after connection recovery.

🛡 Safety and reliability:

• automatic switching of outputs to a safe state (user-defined states) in case of communication loss or power-up.

📲 Notifications:

• ability to send SMS messages when parameters exceed permissible limits;
• flexible configuration of phone numbers and threshold values.