Siemens LOGO! 6ED1052-1MD00-0BA7 Display Module

Technical Dossier

Product Details And Specifications

Siemens LOGO! Series Technical Notes

The Siemens LOGO! series is a compact logic module platform deployed across global heavy industry, including petrochemical plants, nuclear auxiliary systems, refinery utilities, water treatment facilities, and building automation infrastructure. The 6ED1052-1MD00-0BA7 is a dedicated display and text module within the LOGO! 0BA7 generation, providing on-device operator interface capability without requiring an external HMI panel. Its compact DIN-rail form factor and 24 VDC operation make it a standard component in distributed control cabinets where panel space is constrained. The LOGO! platform holds significant installed base across European and Asian industrial facilities, with lifecycle support requirements extending well beyond the original product discontinuation dates for earlier generations.

The Evolution of LOGO! Architecture

The Siemens LOGO! series has progressed through eight major hardware generations (0BA0 through 0BA8), each introducing changes to memory capacity, communication interfaces, and display technology. Early generations (0BA0–0BA3) used fixed-function relay logic with no display capability and limited I/O expansion. The 0BA4 and 0BA5 generations introduced the integrated text display and analog input support, establishing the platform's role in standalone machine control. The 0BA6 generation added Ethernet connectivity on select variants, while the 0BA7 generation — to which the 6ED1052-1MD00-0BA7 belongs — standardized the display module as a separable accessory, allowing base units to operate headlessly in network-managed environments. The 0BA8 generation (current production) introduced web server functionality, cloud connectivity via LOGO! Web Editor, and expanded data logging. Cross-generation compatibility is limited: 0BA7 programs are not directly executable on 0BA8 hardware without conversion via LOGO! Soft Comfort v8.x. Expansion modules (digital and analog) are generation-specific and are not interchangeable between 0BA6 and 0BA7/0BA8 platforms.

LOGO! Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified LOGO! 0BA7 and adjacent generation module range. Each entry reflects a distinct hardware function within the platform architecture.

6ED1052-1MD00-0BA7: LOGO! TD text display module, 24 VDC, 6-line display, for 0BA7 base units
6ED1052-1CC01-0BA8: LOGO! 12/24RCE base unit, 8 DI (4 AI), 4 DO relay, Ethernet, 0BA8
6ED1052-1HB00-0BA8: LOGO! 24 base unit, 8 DI, 4 DO transistor, 24 VDC, 0BA8
6ED1052-1FB00-0BA8: LOGO! 24RCE base unit, 8 DI (4 AI), 4 DO relay, 24 VDC, 0BA8
6ED1052-2MD00-0BA8: LOGO! TD text display module, 24 VDC, 0BA8 generation
6ED1055-1MB00-0BA2: LOGO! DM8 24R digital expansion, 4 DI + 4 DO relay, 24 VDC
6ED1055-1NB10-0BA2: LOGO! DM16 24R digital expansion, 8 DI + 8 DO relay, 24 VDC
6ED1055-1CB10-0BA2: LOGO! DM8 230R digital expansion, 4 DI + 4 DO relay, 230 VAC
6ED1055-1FB10-0BA2: LOGO! DM16 230R digital expansion, 8 DI + 8 DO relay, 230 VAC
6ED1055-1MD00-0BA2: LOGO! AM2 analog expansion, 2 AI (0–10 V / 0–20 mA)
6ED1055-1MM00-0BA2: LOGO! AM2 AQ analog expansion, 2 AO (0–10 V / 0–20 mA)
6ED1055-1MA00-0BA2: LOGO! AM2 PT100 analog expansion, 2 RTD inputs
6ED1057-1AA01-0BA0: LOGO! CMR2020 communication module, GSM/GPRS remote I/O
6ED1057-1AA00-0BA0: LOGO! CMR2040 communication module, LTE remote I/O
6ED1056-1AA00-0BA0: LOGO! CSM12/24 communication module, 4-port Ethernet switch
6ED1058-7AB01-0BA0: LOGO! Power 24 VDC, 1.3 A stabilized power supply module
6ED1058-7BA00-0BA0: LOGO! Power 24 VDC, 4 A stabilized power supply module
6ED1052-1CC00-0BA7: LOGO! 12/24RCE base unit, 8 DI (4 AI), 4 DO relay, Ethernet, 0BA7

Quality Control for the LOGO! Range

LOGO! display modules such as the 6ED1052-1MD00-0BA7 undergo a dedicated test protocol prior to dispatch. The display interface bus (proprietary Siemens serial link between base unit and TD module) is verified for signal integrity under simulated load conditions. Backlight function, contrast control response, and all six display lines are tested for pixel integrity. For base unit modules, the internal program memory is cleared and reloaded with a diagnostic ladder program to verify CPU execution, I/O scan cycle, and relay output switching under rated load. Ethernet-equipped variants (RCE suffix) are tested for TCP/IP stack responsiveness and LOGO! Web Server accessibility. All modules are powered for a minimum burn-in period before final inspection and packaging.