Siemens ed1055-4mh08-0ba1

By Abdullah Zahid
12 min read
Siemens 6ED1055-4MH08-0BA1 LOGO! TDE 6-line text display module with dual Ethernet ports for LOGO! 8 industrial control panels

Siemens 6ED1055-4MH08-0BA1 LOGO! TDE Text Display, 6-Line, 3 Background Colors, 2 Ethernet Ports — Specifications and Selection Guide

If you are specifying or sourcing a text display module for a LOGO! 8 control system, the Siemens 6ED1055-4MH08-0BA1 is the current-generation TDE module that mounts directly alongside the LOGO! 8 base unit, adds a 6-line operator text display with three selectable background colors, and delivers two Ethernet ports for remote monitoring and web server access — all without replacing the base controller. The single most common ordering error in this product family is confusing this model with the older 6ED1055-4MH00-0BA1, a mistake that costs project teams two weeks or more when the wrong unit arrives on site.

If you have already confirmed this is the right part, check current pricing and availability for the 6ED1055-4MH08-0BA1 at LeadTime.ca — ships worldwide.

Who Should Buy the 6ED1055-4MH08-0BA1 — and Who Shouldn't

This module is the right choice for engineers and panel builders who have already committed to the LOGO! 8 platform and need to add operator visibility without moving to a full graphical HMI. It is the correct selection when all of the following conditions are true:

  • Your base module is a LOGO! 8 unit with order number format 6ED1052-xxx08-0BA1 — not LOGO! 6, LOGO! 7, or the older 0BA0 variant
  • A 6-line text display provides sufficient operator information — no graphical animation or trend curves required
  • Two Ethernet ports are needed for plant network integration, web server access, or remote diagnostics
  • Three background color options (red, amber, and a second red for TDE-specific flag M31) are useful for visual process state indication
  • Your engineering workstation runs LOGO!Soft Comfort V8.3 or later — earlier versions do not support this module

If you need graphical displays, trend curves, or touchscreen interaction, this module is not the right fit — the LOGO! CME80 comfort panel is the appropriate upgrade path. If budget is the primary constraint and remote monitoring is not required, the base module's built-in display may be sufficient for simple indication tasks.

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What the 6ED1055-4MH08-0BA1 Actually Does in a LOGO! 8 System

The 6ED1055-4MH08-0BA1 is an optional HMI display module — not a standalone controller, not a replacement for the LOGO! 8 base module, and not a graphical panel. Its role is narrow and well-defined: it extends an existing LOGO! 8 installation with a 6-line character-based text display, selectable color backgrounds for visual status coding, and dual Ethernet connectivity that was absent from older LOGO! display options. Operators can read real-time process values, fault messages, and status text directly from the display, while engineers and supervisors can access the same data remotely via the built-in web server from any browser on the plant network.

The module receives both power and data through the dedicated TDE connection port on the LOGO! 8 base module — no separate power supply is required. Background color is controlled programmatically using memory flags: M29 activates one red backlight state, M30 activates amber, and M31 activates the TDE-specific red. This flag-based color control is what makes it practical to implement green-normal, amber-warning, red-alarm visual workflows without any additional hardware. The dual Ethernet ports support NTP time synchronization, LOGO! Access Tool V2.0.0 and later for remote access, and direct integration with standard plant network switches.

Where the TDE Sits in a Typical LOGO! 8 Control Architecture

The 6ED1055-4MH08-0BA1 mounts on the DIN rail immediately adjacent to the LOGO! 8 base module and bridges operator visibility into the controller's memory and I/O state — without intercepting the control logic itself.

  • Engineering workstation running LOGO!Soft Comfort V8.3 or later connects via Ethernet to program both the base module and configure the TDE display parameters in a single project download
  • LOGO! 8 base module (6ED1052-xxx08-0BA1) executes control logic and manages up to 24 digital inputs, 20 outputs, and 8 analog inputs/outputs; the TDE reads memory values from this base module via the TDE port
  • 6ED1055-4MH08-0BA1 TDE mounts adjacent to the base module on the DIN rail; the keyed TDE connector mates without force and carries both power and data
  • ETH1 connects to the plant network switch for web server access and remote diagnostics; ETH2 connects to a redundant network path or monitoring system as required by the application
  • Operators interact with the 6-line text display directly at the panel; supervisors and engineers access process data remotely through a standard browser pointed at the TDE web server IP address

Industries and Applications That Depend on This Module

Food and beverage facilities use the 6ED1055-4MH08-0BA1 on conveyor and cooking line controls where operators need to see line speed, part count, and temperature simultaneously on a single display. The three background color options are particularly practical here: green for normal production, amber for a low-material warning, and red for an E-stop or fault condition — all without touching the base control program's logic structure.

Machine tool and metal fabrication shops deploy this module on CNC-adjacent LOGO! 8 panels to surface spindle RPM, tool number, cycle progress, and reject counts in a format that maintenance technicians can read and reset at the machine without logging into a SCADA system.

Water treatment installations with pump and valve control benefit from the dual Ethernet capability specifically: the operator display serves the local panel while ETH2 carries web server traffic to a supervisor workstation monitoring multiple pump stations from a central office location.

Small packaging machinery integrators use the TDE for shift summary displays — throughput, carton count, material low alerts — with night-shift remote monitoring handled entirely through the built-in web server, eliminating the need for an on-site operator during low-volume production periods.

Application Typical Deployment
Food and beverage conveyor control Line speed, part count, fault messages with color-coded alarm status via M29/M30 flags
Brewery kettle temperature monitoring Heating/cooling state displayed with amber/red background; operator reads setpoint vs. actual on 6-line screen
Water treatment pump station Tank level, pump run hours, and pressure via ETH2 remote web server access from central control room
Machine tool status panel Spindle RPM, tool number, cycle progress, maintenance due alerts on DIN rail mounted TDE beside LOGO! 8 base
Small packaging machinery Case count, material inventory alert, shift summary with unattended night-shift browser monitoring via built-in web server
Building HVAC and energy monitoring Temperature setpoint, actual value, equipment on/off/fault state on 6-line display at local panel

Purchase-Decision Specifications for the 6ED1055-4MH08-0BA1

Specification Value
Display capacity 6 lines of monochrome text
Background color options 3 selectable colors for status indication
Color backlight flags M29 (red), M30 (amber), M31 (red, TDE-specific)
Ethernet ports 2 x RJ45
Web server Built-in; browser-based remote access
NTP support Yes — time synchronization from NTP server
Power supply Via TDE connection port — no separate PSU required
Mounting method DIN rail, adjacent to LOGO! 8 base module
Operating temperature -20°C to +55°C
Required software LOGO!Soft Comfort V8.3 or later; LOGO! Access Tool V2.0.0 or later

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

TDE vs. TD vs. Base Display vs. CME80: Which One Do You Actually Need?

Feature LOGO! TDE 6ED1055-4MH08-0BA1 LOGO! TD 6ED1055-4MH00-0BA1 LOGO! 8 Base Display Only CME80 Panel
LOGO! 8 compatibility Yes — all 0BA8 variants Limited — older models Yes — all variants Yes — with adapter
Display type 6-line text, 3 background colors 6-line text, 3 background colors 4-line small monochrome 7-inch graphical touchscreen
Ethernet ports 2 1 or fewer 0 (base module only) 2 or more
Remote web server access Yes Limited Via base module only Yes — full HMI
Graphical display No No No Yes — full graphics
Trend curves No — text only No — text only No Yes
Price tier Mid-tier Lower (legacy) Included with base module Premium — significantly higher
Best suited for Remote monitoring, multi-color status, new LOGO! 8 projects Legacy system upgrades only Simple local indication only Complex graphical interfaces

For new LOGO! 8 projects requiring dual Ethernet and color status indication, the 6ED1055-4MH08-0BA1 is the correct selection — check current availability at LeadTime.ca.

Expert Verdict: Honest Assessment Before You Order

The 6ED1055-4MH08-0BA1 earns its place in a LOGO! 8 panel when two conditions align: the application genuinely needs an operator-facing display beyond what the base module screen provides, and remote monitoring or plant network integration is part of the project scope. The dual Ethernet capability is the single most meaningful upgrade over the older TD model — it allows the TDE to sit simultaneously on a plant LAN for web server access and on a second network segment for monitoring or redundancy, which the previous generation simply could not do. The -20°C to +55°C operating range makes it usable in outdoor enclosures and unheated plant areas where some HMI products fail. For straightforward text-based machine interfaces — speed readouts, fault messages, part counts, status states — this module is well-matched and reduces commissioning time compared to a full graphical HMI that requires icon design, screen layout work, and more complex programming.

Where it reaches its limits is also clear: if your application needs trend curves, graphical animations, recipe management, or a touchscreen interface, the 6-line text format will frustrate both operators and engineers within weeks of commissioning. This is not a shortcoming of the module — it is simply a text display, and it is priced accordingly. Be equally direct about the software dependency: LOGO!Soft Comfort V8.3 or later is mandatory, and projects still running V8.2 or earlier will require a software update before this module can be configured. That update is straightforward, but it needs to be planned into the commissioning schedule. If this matches your system requirements, view current stock and pricing at LeadTime.ca.

From a procurement standpoint, standard lead time from direct order in North America is typically 4 to 8 weeks, which makes early reservation critical if the TDE is on the critical path for panel completion. Authorized distributors holding stock can significantly compress that window. LeadTime.ca carries inventory and can confirm availability before you commit to a project timeline. Volume pricing is available for panel builders and integrators ordering multiple units across a project or framework agreement.

Get a Quote or Confirm Lead Time Before Your Build Commits

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 for the 6ED1055-4MH08-0BA1

  • Mount the LOGO! 8 base module on the DIN rail first; then mount the 6ED1055-4MH08-0BA1 TDE immediately adjacent using DIN rail clips — the keyed TDE connector mates without force and carries both power and communication signals
  • No separate power supply wiring is required for the TDE; it draws power entirely through the TDE port connection to the base module
  • Connect ETH1 to the plant network switch using Cat5e shielded cable or better; connect ETH2 to a redundant network segment, monitoring system, or leave unconnected if single-network design is used
  • Perform a pull test on both RJ45 connections before power-up — vibration in machine environments can loosen connectors over time and cause intermittent communication loss
  • Apply power to the LOGO! 8 base module after all connections are verified; the TDE receives power automatically and the status LED on the base module should indicate normal operation within 10 to 30 seconds

Software Commissioning Overview in LOGO!Soft Comfort V8.3

  • Open LOGO!Soft Comfort V8.3 or later and load or create a LOGO! 8 project matching your base module variant (6ED1052-xxx08-0BA1); add the 6ED1055-4MH08-0BA1 TDE to the device list from the LOGO! 8 device family
  • Assign IP addresses to both ETH1 and ETH2 in the Ethernet configuration dialog — addresses must match the plant network subnet; mismatched subnets are the most common reason web server access fails after installation
  • Configure display text source addresses (V memory locations containing the text strings to display) and set background color flags: M29 for red, M30 for amber, M31 for TDE-specific red
  • Download the project to the base module — LOGO!Soft Comfort configures the TDE automatically during the download process; no separate firmware flash is required for the display module
  • Verify display output after download and test color background changes by toggling M29, M30, and M31 manually in LOGO! Access Tool V2.0.0 or later before handing the panel to the operator

What Engineers Get Wrong When Ordering This Part

Before placing your order for the 6ED1055-4MH08-0BA1, work through this checklist verbatim — each item corresponds to a documented ordering or installation failure in the field:

  1. Verify base module is LOGO! 8 series (6ED1052-xxx08-0BA1) NOT older LOGO! 6 or LOGO! 7
  2. Confirm order number format exactly matches 6ED1055-4MH08-0BA1 (TDE model) not 6ED1055-4MH00-0BA1 (older TD model)
  3. Check that existing automation project uses LOGO!Soft Comfort V8.3 or later (required for TDE support)
  4. Verify 2 Ethernet ports required; if only 1 port needed, confirm this model is not over-spec
  5. Confirm physical mounting space available for TDE alongside base module (compact form factor)
  6. Check that 6-line text display suffices (no need for graphical animation or trend curves)
  7. Verify wiring supports dual Ethernet connections to plant network

If any item on this list raises a question before you order, contact the LeadTime.ca team — we can help verify compatibility against your base module model number before the order ships.

Frequently Asked Questions

Will the 6ED1055-4MH08-0BA1 work with my existing LOGO! 8 base module?

The TDE is compatible with all LOGO! 8 base modules in the 6ED1052-xxx08-0BA1 series. It is not compatible with LOGO! 6, LOGO! 7, or older LOGO! 8 variants with the 0BA0 suffix. Check your base module order number before purchasing — the 08 in the suffix confirms you have a current LOGO! 8 platform that supports the TDE.

What is the difference between the 6ED1055-4MH08-0BA1 (TDE) and the older 6ED1055-4MH00-0BA1 (TD)?

The TDE model adds a second Ethernet port, extended LOGO!Soft Comfort support through V8.3 and later, and a wider operating temperature range down to -20°C. The older TD model has more limited network connectivity and is primarily relevant for legacy system upgrades. For any new LOGO! 8 project, the 6ED1055-4MH08-0BA1 is the correct current-generation selection.

Do I need a separate power supply to run the TDE?

No. The 6ED1055-4MH08-0BA1 receives power through the TDE connection port from the LOGO! 8 base module. No additional power supply wiring, circuit breaker, or terminal block is required for the display module itself.

Can I access the TDE display data remotely without being at the panel?

Yes. The built-in web server allows browser-based access to process data from any device on the plant network connected through ETH1 or ETH2. LOGO! Access Tool V2.0.0 or later provides structured remote access. The NTP client also allows time-stamped data logging when an NTP server is available on the network.

What happens if I try to configure the TDE with LOGO!Soft Comfort V8.2?

LOGO!Soft Comfort V8.3 or later is mandatory for TDE support. V8.2 and earlier will not recognize the 6ED1055-4MH08-0BA1 as a supported device. If your engineering workstation is running an earlier version, a software update is required before commissioning — plan this into your project schedule.

How do the three background colors work in practice?

Background color is controlled via memory flags in the LOGO! 8 program. Setting M29 activates a red backlight state, M30 activates amber, and M31 activates the TDE-specific red indication. These flags are driven by program logic — for example, M30 goes to 1 when a temperature alarm condition is true — which allows the display to communicate process state visually without the operator needing to read the text in detail.

Why Order the 6ED1055-4MH08-0BA1 from LeadTime.ca

  • LeadTime.ca ships the 6ED1055-4MH08-0BA1 worldwide — no regional restrictions on sourcing or delivery
  • Stock availability can be confirmed before you commit to a project schedule, which matters when standard Siemens lead time from direct order runs 4 to 8 weeks
  • Volume pricing is available for panel builders and integrators ordering multiple TDE units across a project
  • The team can verify your base module part number against TDE compatibility before the order is placed, reducing the risk of receiving the wrong variant

At-a-Glance Summary

  • Model: Siemens 6ED1055-4MH08-0BA1 — LOGO! TDE text display, 6-line, 3 background colors, 2 Ethernet ports, for LOGO! 8
  • Display: 6 lines of monochrome text with 3 selectable background colors controlled via flags M29, M30, M31
  • Connectivity: 2 x RJ45 Ethernet ports with built-in web server and NTP client support
  • Power: Supplied entirely through TDE connection port from LOGO! 8 base module — no separate PSU
  • Operating temperature: -20°C to +55°C
  • Required base module: LOGO! 8 series 6ED1052-xxx08-0BA1 only — not compatible with LOGO! 6, LOGO! 7, or 0BA0 variants
  • Required software: LOGO!Soft Comfort V8.3 or later; LOGO! Access Tool V2.0.0 or later for remote access
  • Key ordering risk: Confirm full suffix 6ED1055-4MH08-0BA1 — do not substitute 6ED1055-4MH00-0BA1 (older TD model)
  • Typical lead time from direct order in North America: 4 to 8 weeks — verify stock at LeadTime.ca before project commitment