Most micro-PLCs dictate what you can wire. The EQSP32 adapts each terminal in software to match your field devices — analog, digital, 4-20mA, 1A drive, pulse counter — and connects to your network through every protocol that matters.
The EQSP32’s I/O circuit is universal enough that we gave it its own word: EQVersal®.
Sixteen terminals are assigned entirely in software. Shared modes span digital inputs, one-amp PWM power outputs, and Smart Coil relay drive; ports 1–8 add twelve-bit voltage, 4–20 mA, and thermistor inputs; ports 9–16 add hardware pulse counters and high-speed digital outputs for encoders and pulse trains. Change the personality of a pin without jumpers or rewiring.
No other micro-PLC natively spans this breadth of signal types on a single terminal row.
| Mode | Signal / Range | Ports 1-8 | Ports 9-16 |
|---|---|---|---|
| Digital Input | 24V tolerant | ✓ | ✓ |
| 1A PWM Output | Open-collector • 24V / 1A max | ✓ | ✓ |
| Smart Coil / Relay Drive | Open-collector • 24V max • On-board flyback protection | ✓ | ✓ |
| High-Speed Digital Output | TTL • Up to 1 MHz | — | ✓ |
| Hardware Pulse Counter | 24V tolerant • Up to 500 kHz | — | ✓ |
| Analog Input (Voltage) | 12-bit • 0–10V | ✓ | — |
| 4-20mA Current Loop Input | 12-bit • 4–20mA | ✓ | — |
| NTC Thermistor Input | 10-bit • Configurable β & R | ✓ | — |
When the sixteen EQVersal terminals are not enough, stack EQXpansion modules for more digital I/O, 0 –10 V and 4–20 mA inputs, thermocouple and RTD channels, pH conditioning, cellular links, and other slices we keep adding to the family.
From industrial process instruments to stage lighting. Here are some of the device types EQSP32 ports can interface with — natively or via expansion modules.
Switches, proximity sensors, limit sensors, float switches
Turbine flow meters, energy meters, tachometers
Rotary encoders, position feedback, motion control
Potentiometers, joysticks, voltage sensors
Pressure, level, flow, temperature transmitters
Thermistor probes, HVAC sensors, incubators
Platinum resistance temperature sensors
via EQXPT02
High-temperature industrial probes
via EQXTC06
RGB / RGBW lighting, heaters, indicators
Relays, contactors, solenoid valves
Motorized valves, proportional solenoids, adjustable pumps
Fans, pumps, heaters, lights, contactors, alarms
via EQXRA82
VFDs, damper actuators, proportional valves, dimmers
via EQXRA82
Stepper drivers, signal generation, pulse trains
LED strips, panels, pixel signage
Need a signal type not covered here? Talk to us about application-specific modules.
Stepper drives, load cells, and more coming soon
Here is something you will not commonly find on a DIN-rail micro-PLC: pickup-to-hold coil derating on the EQSP32 output pin. Smart Coil / Relay drive pulls in hard until the contact or spool is seated, then rests at your hold level. Relay coils often settle at about one tenth of pickup power, which cuts coil heat and lets you run a smaller DC supply. Inductive flyback is handled on-board at the terminal.
From field-level RS485 to plant-wide Ethernet. The EQSP32 speaks every industrial language your system needs.
The backbone of industrial automation. Supports Modbus master and slave modes. Connect to VFDs, energy meters, PLCs, and SCADA gateways. Also supports DMX512. A second RS485 port is available as a build option.
Modbus TCP, MQTT, HTTP, and TCP/UDP over wired or wireless. Connect to SCADA systems, Home Assistant, Node-RED, or any cloud platform.
CAN 2.0B with 11-bit and 29-bit frame support. Built-in CANopen node filtering and SAE J1939 compatibility for trucks, agricultural machinery, and heavy equipment. Ideal for robotics, automotive, and building automation.
Point-to-point serial for HMI panels, RFID readers, GPS modules, and legacy equipment. Configurable baud rate with inverted-signal option for direct TTL-level connections.
Used by EQConnect for field commissioning (WiFi provisioning, device naming, MQTT setup) and live I/O diagnostics without a cable or open cabinet. The library also exposes a full serial-over-BLE stream (Nordic UART Service) and raw BLE access for any custom application.
Everything you see here ships on a single DIN-rail module.
Evaluating for a project? Talk to us · Want to prototype your logic first? Try EQ-AI
