Siemens ed1052-1fb08-0ba1

By Abdullah Zahid
13 min read
Siemens 6ED1052-1FB08-0BA1 LOGO! 230RCE logic module with integrated display mounted on 35mm DIN rail for industrial automation control

Siemens 6ED1052-1FB08-0BA1 LOGO! 230RCE Logic Module with Display: Specifications, Pricing and Alternatives

Controls engineers evaluating compact logic controllers for small-to-medium automation tasks often land on the Siemens 6ED1052-1FB08-0BA1 LOGO! 230RCE during the final comparison stage — and for good reason. This module packs 8 digital inputs, 4 relay outputs, an integrated 3.5-inch display, Ethernet connectivity, and a built-in web server into a 71.5mm-wide DIN rail package that operates across a wide supply voltage range of 85–265V AC or 100–253V DC. The key question at this stage is whether this specific catalog number — now officially discontinued with the 6ED1052-1FB08-0BA2 as its current successor — is available, and whether it still fits your project requirements without compromise.

If you have already confirmed this is the right part, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Buy the 6ED1052-1FB08-0BA1 — and Who Shouldn't

The Siemens 6ED1052-1FB08-0BA1 LOGO! 230RCE is the right module if your application meets all of the following criteria:

  • Your discrete control task requires exactly 8 digital inputs and 4 relay outputs — no analog I/O needed
  • Facility supply voltage is 115V or 230V AC/DC, within the permissible range of 85–265V AC or 100–253V DC
  • Panel space accommodates a 71.5mm-wide, 4 module-width unit on a 35mm DIN rail
  • Ethernet connectivity is required for remote monitoring, web-based diagnostics, or data logging without a separate HMI investment
  • Application logic fits within 400 function blocks, and LOGO! Soft Comfort V8.3 or higher is available for programming
  • Project timeline allows 2–4 weeks procurement lead time for this discontinued model

If you need analog inputs or outputs, higher relay switching capacity for motors above what a 3A inductive relay can handle, or a faster delivery window, the 6ED1052-1FB08-0BA2 successor is the preferred choice for new projects and is typically available within 1–2 weeks at a similar price point of $85–125 USD.

On this page:

What the LOGO! 230RCE Actually Does in a Control System

The Siemens 6ED1052-1FB08-0BA1 LOGO! 230RCE is a standalone programmable logic module — meaning it contains the processor, I/O, display, and communication interface all in a single unit without requiring a separate CPU chassis or expansion rack. It sits in the LOGO! 8 series product family and is positioned specifically to bridge the gap between inflexible hardwired relay logic and the cost and complexity of a full-scale industrial PLC for applications that only need discrete control with remote visibility.

The 8 digital inputs accept sensor signals and feed them into logic executed from up to 400 function blocks stored in module memory or on a microSD card. The 4 SPDT relay outputs then switch loads — lighting, solenoid valves, motor starter coils, or fans — at up to 10A resistive or 3A inductive per channel. The integrated Ethernet port with built-in web server means that engineers and technicians can view real-time I/O status, historical data logs, and custom web pages from any browser on the network without installing separate server software or a panel-mounted HMI. The 3.5-inch on-board display handles local status monitoring and basic configuration tasks directly at the module face. For program development, LOGO! Soft Comfort V8.3 or higher is required, running on a Windows PC with program transfer via microSD card.

Two proof points support the cost case for this approach: the integrated display and web server eliminate the need for a separate HMI panel that typically costs $500–2000 per installation, and the 480-hour internal capacitor backup retains the real-time clock without a battery during power interruptions.

Typical System Architecture for the 6ED1052-1FB08-0BA1

The 6ED1052-1FB08-0BA1 sits between the field devices and the facility network — functioning as both the logic processor and the primary I/O interface in installations where a larger PLC system is not justified.

  • Upstream: 115V or 230V AC/DC facility supply through a fused disconnect or circuit breaker — external fusing is mandatory since the module has no integrated short-circuit protection on outputs
  • Inputs: Sensors (proximity switches, float switches, pushbuttons, temperature contacts) wired to 8 digital input terminals with status LEDs visible on the module faceplate
  • Processing core: The 6ED1052-1FB08-0BA1 executes up to 400 function blocks of logic with real-time clock, timers, counters, and data logging active simultaneously
  • Outputs: 4 SPDT relay contacts switching loads such as contactor coils, solenoid valves, indicator lamps, or small motor starters — with load-side fusing installed for inductive loads
  • Network layer: Ethernet RJ45 port (Cat5e or Cat6 cable required, not supplied) connecting to plant LAN, browser-accessible web server, or cloud gateway for remote monitoring and data archival

Where Engineers Deploy the LOGO! 230RCE

Pump and compressor control is one of the most common deployments for the Siemens 6ED1052-1FB08-0BA1. On-off sequencing with delayed start timers, overload protection signal inputs, and relay outputs switching motor starter coils fits directly within the 8 DI / 4 DO architecture. The built-in data logging captures runtime hours for maintenance scheduling without any additional hardware.

Multi-stage process sequencing — fill, hold, drain cycles for tanks or chemical dosing applications — benefits from the 400-block memory that can hold the full sequence logic including fault handling and alarm outputs. Ethernet-based logging of cycle counts and alarm events serves compliance documentation requirements without a separate SCADA server.

HVAC and building automation teams use the module for zone fan and damper sequencing, refrigeration unit cycling, and occupancy-based control. The web server provides facility managers browser-based visibility without requiring dedicated software licenses or panel-mounted terminals.

For legacy system replacements, the 6ED1052-1FB08-0BA1 fits directly into existing 35mm DIN rail panels at 71.5mm wide, which often allows a like-for-like swap of older relay logic panels without rewiring field devices — protecting existing infrastructure investment.

Application Typical Deployment
Conveyor belt control Forward/reverse direction logic with limit switch inputs and relay outputs to motor starter coils
Pump or compressor on/off Delayed start sequencing with overload signal input and data logging for runtime compliance
Fill-hold-drain process cycling Multi-stage timer-based sequence with Ethernet-based cycle count logging for documentation
HVAC fan and damper control Occupancy or temperature contact inputs switching relay outputs to zone equipment
Remote monitoring installation Web server providing browser-based real-time I/O status and alarm history at geographically distributed sites
Legacy relay panel replacement Drop-in DIN rail swap preserving existing field wiring on 35mm rail within original panel footprint

Purchase-Decision Specifications and Variant Comparison

Specification Value
Supply voltage (rated) 115V AC, 230V AC, 115V DC, 230V DC
Permissible supply range 85–265V AC (47–63 Hz) / 100–253V DC
Digital inputs 8 channels with status LED indicators
Relay outputs 4 x SPDT (changeover) contacts
Output capacity 10A resistive / 3A inductive per relay
Memory 400 function blocks; microSD card for program storage
Display 3.5-inch integrated monochrome LCD
Connectivity 1x Ethernet RJ45; integrated web server; cloud connectivity
Dimensions (W x H x D) 71.5mm x 90mm x 60mm; 4 MW on 35mm DIN rail
Operating temperature -20°C to +55°C; storage -40°C to +70°C

Full technical specifications are available on the product page at LeadTime.ca.

The table below covers the three comparison scenarios that come up most often during LOGO! 230RCE evaluation:

Criteria Siemens 6ED1052-1FB08-0BA1 Siemens 6ED1052-1FB08-0BA2 (Successor) Competitive Alternative (CompactLogix L16)
Price (approximate) $80–120 USD $85–125 USD $400–600 USD
I/O configuration 8 DI / 4 relay DO 8 DI / 4 relay DO (same) 16+ I/O modular
Display included 3.5-inch integrated 3.5-inch integrated (same) No — external panel required
Web server Integrated Integrated (enhanced stack) Requires separate HMI
Memory 400 blocks 400 blocks (same) Larger modular memory
LOGO! Soft Comfort min. version V8.3 V8.3 (same) N/A — separate software ecosystem
Cloud integration Basic Enhanced Requires separate infrastructure
Manufacturer support status Spare parts designation only Full support (5+ years) Current production
Typical lead time 2–4 weeks 1–2 weeks Common stock
Learning curve Fast (1–2 weeks) Fast (1–2 weeks) Steep (4–8 weeks)
Best for Small automation, remote monitoring, legacy replacement New projects requiring same I/O profile Complex logic, high I/O count applications

For new installations where the 8 DI / 4 relay DO configuration fits and Ethernet is required, the 6ED1052-1FB08-0BA2 offers the same functional profile with enhanced cloud integration and a full manufacturer support window — check current availability of both catalog numbers at LeadTime.ca.

Expert Verdict: Honest Assessment for Controls Engineers

The Siemens 6ED1052-1FB08-0BA1 LOGO! 230RCE is genuinely well-suited for what it was designed to do: deliver discrete control logic with local display and remote Ethernet monitoring in a cost-effective DIN rail package. At $80–120 USD versus $400–600 for a modular CompactLogix-class controller, the value proposition is real — particularly when the integrated 3.5-inch display and web server eliminate $500–2000 in separate HMI hardware from the BOM. The 400-block memory is sufficient for the conveyor sequencing, pump control, and HVAC applications where this module most commonly appears. The operating temperature range of -20°C to +55°C and certifications including CE, UL, CSA, and FM give it credibility across a wide range of industrial deployment environments. The programming learning curve of 1–2 weeks for experienced controls personnel is a genuine advantage for teams that need to commission small systems quickly.

The honest limitations matter here. This is a digital-only module — there are no analog inputs or outputs. If your application involves temperature sensors, pressure transducers, or variable speed references, you will need a different variant or an external analog I/O expansion. The 3A inductive relay rating means the module is not directly switching motors above that threshold; it is switching contactor coils or motor starter auxiliaries, and the loads themselves need external contactor protection with load-side fusing. The IP20 protection class means the module needs a sealed enclosure in any environment with moisture, dust, or aggressive atmosphere. Most importantly: this catalog number is officially discontinued. It carries a spare parts designation with limited inventory in the supply chain. If your project can accept the 6ED1052-1FB08-0BA2 successor — which carries the same 8 DI / 4 relay DO configuration and the same V8.3 software compatibility at a nearly identical price — that is the lower-risk procurement path for any new installation. If you specifically need the 6ED1052-1FB08-0BA1 for a spares-based replacement or to match an exact existing installation, expect a 2–4 week lead time and confirm stock before committing to a project schedule.

For procurement reality: pricing in the $80–120 USD range makes volume orders of 5+ units a reasonable negotiation point for integrators building multiple similar panels. Both catalog numbers — the 6ED1052-1FB08-0BA1 and its successor — can be sourced through LeadTime.ca, which maintains inventory visibility across distributor networks. If you match your project requirements to this module, view current stock and pricing at LeadTime.ca.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

Wiring and Installation Overview

The following points summarize key requirements and configuration checks for installing the 6ED1052-1FB08-0BA1. Engineers needing complete wiring diagrams and step-by-step commissioning procedures should refer to the official Siemens LOGO! 8 installation manual.

  • Mount the module on a 35mm DIN rail using the integrated snap-on clips; verify 71.5mm horizontal clearance and at least 50mm vertical clearance above and below for air circulation and maintenance access
  • Connect supply voltage (L, N, and protective earth) to the terminal block; confirm the facility supply falls within 85–265V AC or 100–253V DC before energizing — no internal short-circuit protection is present, and external fusing upstream is mandatory
  • Wire digital input sensors to terminals DI 1–8; status LEDs on the module faceplate confirm signal state during commissioning
  • Connect relay output loads — contactor coils, solenoid valves, indicator lamps — to NO/NC/Common terminals on outputs 1–4; install load-side fuses for all inductive loads, particularly where load current exceeds 3A
  • For Ethernet connectivity, insert a Cat5e or Cat6 cable into the RJ45 port (not supplied with the module); assign a static IP address via the on-module settings menu and verify browser access to the integrated web server before finalizing panel assembly

Compatible Expansion and Accessories

The 6ED1052-1FB08-0BA1 is part of the LOGO! 8 series modular ecosystem. The following accessories and expansion items are relevant to system builds using this base unit:

  • LOGO! digital and analog expansion modules — snap onto the right side of the base unit to extend I/O beyond the base 8 DI / 4 DO configuration; required for applications needing analog inputs or additional relay outputs
  • microSD card (standard FAT format) — used for program storage, backup, and transfer between LOGO! Soft Comfort V8.3 on a Windows PC and the module; not supplied with the base unit
  • LOGO! Soft Comfort V8.3 or higher — the required Windows-based programming software for creating, simulating, and transferring application programs; minimum version V8.3 for this catalog number
  • Ethernet cable Cat5e or Cat6 — required to activate the Ethernet port and web server; not included with the module
  • External circuit breaker and load-side fuses — mandatory for all installations; the 6ED1052-1FB08-0BA1 has no integrated output short-circuit protection

Wrong-Part Prevention Checklist Before You Order

Before placing an order for the Siemens 6ED1052-1FB08-0BA1, verify every item on this checklist against your project requirements — these are the most common sources of incorrect procurement on this catalog number:

  1. Verify supply voltage (115V or 230V AC/DC) matches your facility standard; 100-253V DC or 85-265V AC permissible range
  2. Confirm 4 relay outputs (10A resistive / 3A inductive maximum) sufficient; does not include analog outputs
  3. Check that 8 digital inputs accommodate all sensor connections without additional I/O expansion
  4. Ensure DIN rail mounting space: 71.5mm width x 90mm height x 60mm depth (4 MW wide on 35mm rail)
  5. Verify LOGO! Soft Comfort software version V8.3 or higher available for programming
  6. Confirm external fusing/protection will be installed; module has no integrated short-circuit protection on outputs
  7. Check that IP20 protection suitable for your environment; not sealed for wet locations (IP67+)
  8. Confirm Ethernet capability required; Ethernet hardware not included in base unit

If any item on this checklist raises a question before you finalize the order, contact the LeadTime.ca team to confirm the correct catalog number for your application — or view the full product details page for additional specification data.

Frequently Asked Questions

Is the Siemens 6ED1052-1FB08-0BA1 discontinued, and can I still buy it?

Yes, the 6ED1052-1FB08-0BA1 carries an official discontinued status with the 6ED1052-1FB08-0BA2 as the designated current successor. It remains available as a spare part through authorized distributors, but inventory is limited and lead times of 2–4 weeks should be expected. For new projects, the 6ED1052-1FB08-0BA2 offers the same 8 DI / 4 relay DO configuration, the same V8.3 software compatibility, and a similar price point of $85–125 USD with a shorter 1–2 week lead time and full manufacturer support.

What is the relay output capacity and can it switch motors directly?

Each of the 4 relay outputs on the 6ED1052-1FB08-0BA1 is rated at 10A for resistive loads and 3A for inductive loads. The module is not intended to switch motors directly above that inductive threshold — the typical deployment wires relay outputs to motor starter coils or contactor coils, with the contactor then switching the motor current. Load-side fusing is required for all inductive loads, and no internal short-circuit protection is provided.

Does the 6ED1052-1FB08-0BA1 work with LOGO! Soft Comfort on my existing PC?

The minimum required version of LOGO! Soft Comfort for the 6ED1052-1FB08-0BA1 is V8.3. Programs are developed on a Windows PC and transferred to the module via microSD card. Older project files created in earlier versions of LOGO! Soft Comfort can be executed on V8.3 without recompilation. Engineers running versions below V8.3 will need to update their software before programming this module.

Can the LOGO! 230RCE handle analog signals from temperature or pressure sensors?

No. The 6ED1052-1FB08-0BA1 is a digital-only module — all 8 inputs and all 4 outputs are discrete (relay). Applications requiring analog signal processing for temperature, pressure, or flow measurement need either a different LOGO! variant with analog I/O capability or a LOGO! analog expansion module added to the right side of this base unit. Confirm the analog I/O requirement before ordering this catalog number.

What does the integrated web server actually provide without extra software?

The integrated web server in the 6ED1052-1FB08-0BA1 allows any browser on the same network to view real-time I/O status, historical data trends, and custom HTML web pages created by the programmer — without installing server software or purchasing a separate HMI license. An Ethernet Cat5e or Cat6 cable must be connected to the RJ45 port (not included), and the module must be assigned a static IP address through the on-module settings menu. Cloud connectivity is also supported for all LOGO! 8 series basic units, but requires an external gateway or cloud service setup.

What is the operating temperature range and is IP20 sufficient for my panel?

The 6ED1052-1FB08-0BA1 operates from -20°C to +55°C with a storage range of -40°C to +70°C, covering most standard industrial indoor environments. The IP20 protection class means the module is intended for dry indoor installations only — it is not sealed against moisture, dust ingress, or explosive atmospheres. Applications in washdown environments, outdoor enclosures without climate control, or classified hazardous locations will require the module to be installed inside an appropriately rated sealed enclosure.

Why Order From LeadTime.ca

  • LeadTime.ca ships worldwide — no geographic restriction on orders regardless of project location
  • Both the 6ED1052-1FB08-0BA1 and the 6ED1052-1FB08-0BA2 successor are accessible through LeadTime.ca, making it straightforward to compare availability and lead times for both catalog numbers before committing
  • Volume pricing is available for multi-unit orders — contact the team directly for integrator pricing on 5+ units
  • Hard-to-find and discontinued catalog numbers are a sourcing specialty; limited-inventory items like the 6ED1052-1FB08-0BA1 are actively tracked across distributor networks
  • Technical questions about compatibility, variant differences, and lead time can be answered before the order is placed

At-a-Glance Closing Summary

  • Siemens 6ED1052-1FB08-0BA1 LOGO! 230RCE: 8 digital inputs, 4 relay outputs (10A resistive / 3A inductive), 400-block memory, 3.5-inch integrated display
  • Supply voltage: 115V or 230V AC/DC; permissible range 85–265V AC or 100–253V DC; line frequency 47–63 Hz
  • Dimensions: 71.5mm W x 90mm H x 60mm D; 4 module-width units on 35mm DIN rail; weight 0.27 kg
  • Operating temperature: -20°C to +55°C; storage -40°C to +70°C; altitude 0–2000m; IP20 protection class
  • Ethernet RJ45 port with integrated web server, real-time data logging, custom web page support, and cloud connectivity — cable and hardware not included
  • 480-hour backup power reserve via internal capacitor for real-time clock retention; no battery included
  • Certifications: CE, UL, CSA, FM, IEC 61131-3, VDE 0631, marine duty approved
  • Catalog status: Discontinued; spare parts availability 3–5 years post-discontinuation; successor 6ED1052-1FB08-0BA2 recommended for new projects
  • Typical lead time for 6ED1052-1FB08-0BA1: 2–4 weeks; typical price $80–120 USD through authorized distributors
  • Minimum software requirement: LOGO! Soft Comfort V8.3; programming via microSD card transfer
  • External fusing mandatory — no integrated short-circuit protection on relay outputs