Lovato LRK12RD024 Micro PLC Base Module, Ethernet, 12/24 V DC

Lovato LRK12RD024 micro PLC base module with Ethernet port

The Lovato LRK12RD024 is a programmable logic base module with a built-in Ethernet port, 12 or 24 V DC supply, 6 digital inputs plus 2 inputs that can be digital or analogue, and 4 relay outputs. A 4-line 16-character LCD and a real-time clock are built in. It can be expanded up to 36 I/O points with LRE modules. Seven Star LLC supplies the LRK12RD024 in Oman and the GCC as an independent supplier in Muscat.

The code follows the LRK family naming: 12 stands for the 12-point I/O size, R for relay outputs, D for DC supply and 024 for the supply voltage level. The sibling LRD12RD024 has a 24 V supply and no communication port listed in its data sheet.

LRK12RD024 technical specifications

What the Ethernet port changes on the LRK12RD024

A standard micro PLC is programmed and monitored over a serial or USB connection and is a closed unit once installed. Ethernet lets a PC connect through a network switch to load programs and monitor the process from a distance, and allows several small PLCs on a site to be reached from one place. For remote pumping stations and similar installations, that eliminates trips to the site just to change a timer value. Because the data sheet lists only the port, the protocols and software settings should be checked in the manual before a network design is finalised.

The 12/24 V DC supply is wider than the fixed 24 V of the LRD12RD024. A 12 V battery can power the unit directly, which suits solar-powered telemetry and vehicle installations.

Inputs and outputs of the LRK12RD024

Six inputs are purely digital; two more can be used as digital or 0 to 10 V analog, with a 12-bit conversion. High-speed counting is possible on the inputs, with a 0.5 ms response time for the high-speed type. The four relay outputs switch the actuators directly, and a small contactor or interposing relay is recommended for inductive loads. Maximum cable length for the analogue signals is 30 m of shielded wire.

Where the LRK12RD024 fits

The module forms the core of small automation tasks: pump alternation, tank level, compressor sequencing, simple HVAC logic, gate or door control. Expansion modules such as the LRE08RD024 listed in the catalogue add I/O up to 36 points. When more advanced control or fieldbus is needed, a larger PLC platform is the better choice.

LRK12RD024 selection and ordering checklist

• Count digital, analog and output points, with spare capacity
• Confirm 12 V or 24 V DC supply and the available power source
• Check relay contact ratings against the load, with interposing relays if needed
• Decide on network needs for programming or monitoring
• Plan expansion with LRE modules
• Check panel temperature does not exceed +50 °C

Installation and commissioning of the LRK12RD024

Mount on a 35 mm rail, connect the supply, keep analogue cables shielded and short, and fit surge suppression across inductive relay loads. Program with the Lovato software and test the logic with the outputs disconnected from the machine. Save the program and document the IP settings. As there are no battery-backed memory details in the sheet, check the manual regarding program and data retention.

Typical LRK12RD024 applications in Oman and the GCC

Small booster sets, irrigation pumps, generator auto-start logic, ventilation fan sequencing and small water treatment skids are common targets. The -20 to +50 °C range is narrower than some panel temperatures in summer, so shade and ventilate the enclosure.

Programming and maintenance notes for the LRK12RD024

Since the module has a front display and keys, simple parameter changes such as timer values or setpoints can be made without a PC, which suits operators who are not programmers. Complex changes go through the PC software over Ethernet. Plan the network addressing together with the site IT or SCADA team, and avoid exposing the controller to an open network, as a PLC without authentication should sit behind a firewall or on an isolated control network.

Typical faults are a relay output welded by an unsuppressed inductive load, or an input held by a leaking sensor. Both are easy to find from the display. Keep a spare base module for critical stations, because a replacement can be loaded with the saved program and be running within minutes.

Information to send with an RFQ for the LRK12RD024

• Part number LRK12RD024 and quantity
• Inputs, outputs and analogue requirements
• Supply voltage
• Network and expansion needs
• Panel temperature
• Delivery location

Documents and quotation

Send the part number LRK12RD024 and we will confirm the documents available for it, such as the technical data sheet, wiring diagram and instruction sheet, together with availability and lead time.

Seven Star LLC is an independent supplier in Muscat and is not an official channel of the manufacturer. Share the quantity, delivery location and project reference with the request and we will answer with a formal quotation.