Description
The Siemens LOGO! 24RCL logic module (6ED1053-1HB00-0BA2) combines control logic, a built-in display, keypads, and high-capacity relay outputs into a single modular unit. Designed for small-to-medium automation tasks, this 0BA2 series module replaces multiple conventional relays, timers, and counters with programmable function blocks. Its integrated real-time clock (RTC) enables precise time-based switching for equipment and environmental management.
Main Features
- Integrated Display & Keypad: Allows direct parameter adjustments, timer configuration, program editing, and operational status monitoring directly from the front panel.
- 12 Digital Inputs & 8 Relay Outputs: Provides ample input/output density with 10A switching capacity on output contacts for direct load control.
- Integrated Real-Time Clock (RTC): Enables schedule-driven automation routines, daily/weekly timer schedules, and time-stamped task management.
- 56 Function Block Capacity: Holds up to 56 program blocks in internal non-volatile memory for flexible control logic programming.
Benefits
- Cost & Space Efficiency: Replaces dozens of mechanical relays, time switches, and counters, significantly reducing panel footprint and wiring complexity.
- Direct Field Configuration: Parameter values and function block parameters can be modified on-site using the keypad without requiring a computer.
- Reliable Switching Capability: 10A relay outputs can drive solenoids, small motors, contactors, and lighting loads directly.
- Simple Installation: Snap-on mounting onto standard 35 mm DIN rails facilitates fast panel assembly and maintenance.
Applications
Ideal for building automation systems, lighting control networks, pump and ventilation systems, conveyor belts, gate control, and small industrial machinery.
Key Features
- Compact programmable logic controller (PLC) with onboard LCD display.
- Integrated keypad for programming and parameter adjustment.
- 12 digital inputs (24V DC).
- 8 relay outputs rated up to 10A (24V DC / 240V AC).
- Integrated real-time clock (CL) for schedule-based tasks.
- Memory capacity for up to 56 function blocks.
- Standard 35 mm DIN rail mounting design.
- Non-volatile program memory retains logic during power interruptions.
Technical Specification Table
| Specification | Details |
| Brand | Siemens |
| Model | LOGO! 24RCL (6ED1053-1HB00-0BA2) |
| Product Type | Programmable Logic Controller / Logic Module |
| Supply Voltage | 24V DC (range 20.4V to 28.8V DC) |
| Rated Current | Output contact current: Max. 10A resistive |
| Digital Inputs | 12 (24V DC) |
| Digital Outputs | 8 Relay Contacts |
| Program Memory | 56 Function Blocks |
| Real-Time Clock | Integrated (Clock / CL) |
| Display | Onboard LCD Display |
| IP Rating | IP20 |
| Dimensions | 126 mm × 90 mm × 55 mm |
| Weight | Approx. 380 g |
| Warranty | Standard Manufacturer Warranty |
Frequently Asked Questions (FAQ)
Q1: What power supply voltage does the Siemens LOGO! 24RCL require?
A: The module operates on a standard 24V DC power supply (nominal 24V DC, operating range 20.4V to 28.8V DC).
Q2: How many inputs and outputs are available on the 6ED1053-1HB00-0BA2 module?
A: It features 12 digital inputs (24V DC) and 8 relay outputs with a maximum switching capacity of 10A.
Q3: Can I program parameter changes without a laptop?
A: Yes, the integrated LCD screen and front-panel keypad allow direct program editing, timer setup, and parameter configuration on site.
Q4: What does the “CL” designation mean in LOGO! 24RCL?
A: “CL” indicates that the module comes with an integrated Real-Time Clock for time and calendar-driven switching tasks.
Q5: How many function blocks can be programmed into this LOGO! module?
A: The 6ED1053-1HB00-0BA2 memory supports up to 56 function blocks for writing program logic.
Q6: Is special mounting hardware required for installation?
A: No, the module snaps directly onto standard 35 mm DIN rails inside control panels.

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