SIEMENS 6ED1055-1FB10-0BA2 Digital Expansion Module

Status: Active (In Production)

Model Definition: LOGO!8 series expansion module DM16 230R; 16 I/O points (8DI+8DO), 230V class, relay output

✅ Core Specifications

Full Model Name: LOGO! DM16 230R

I/O Configuration: 8 digital inputs (DI) + 8 relay digital outputs (DO)

Power Supply: AC/DC 115…230V (47–63Hz)

Input Signal Level: AC/DC 230V signal

Logic 0: ＜40V AC / ＜30V DC

Logic 1: ＞79V AC / DC

Output Type: Passive relay contacts, rated 5A resistive load per channel

Mounting: Standard 35mm DIN rail

Width: 71.5 mm (4TE); Height 90mm; Depth 58mm

Protection Class: IP20

Operating Temperature: 0℃ ~ +55℃

Weight: 0.294 kg

Certifications: CE, cULus, FM

Connection: Side expansion cable directly connected to LOGO! main unit, no separate communication cable required

📌 Compatibility (Critical Note)

✅ Compatible Main Units: LOGO!8 / LOGO!8.2 (order number suffix 0BA2, 0BA3, etc.)

❌ Not compatible with older LOGO! 0BA6 / 0BA7 (different hardware interface; program incompatible)

Multiple DM modules can be expanded on one LOGO! main unit, limited by the total I/O capacity of the controller.

🧰 Typical Application Scenarios

1. Electrical cabinet, HVAC, water pump & fan control: Collect 220V limit switches and pressure switches; directly drive 220V contactors, solenoid valves and indicator lamps.
2. Small conveyor & packaging stand-alone machines: Expand I/O points when the main unit runs out of capacity for AC signal circuits.
3. Building automation, ventilation and roller shutter control (AC signal loops).
4. Retrofit projects: Existing 220V sensors and actuators without adding intermediate relay isolation.

Selection Reminder: This module is 230V voltage class. For DC24V signals, choose DM16 24R (6ED1055-1NB10-0BA2).

⚠️ Troubleshooting & Operation Guidelines

1. Module no response: Check if the side expansion cable is fully latched; the module itself requires AC/DC230V power supply independent of the main unit.
2. Input channel not detected: Input voltage must exceed the 79V threshold; low voltage signals cannot trigger the input; distinguish AC/DC signal types strictly.
3. Damaged relay outputs: Relay contacts are easily damaged by back EMF from inductive loads (contactor coils, solenoid valves). Install RC snubber circuits in parallel with coils to extend contact life.
4. Load limit: Max 5A per channel; avoid long-term full-load operation on all 8 channels simultaneously to prevent overheating.
5. Passive relay output: No built-in common power on contacts; load power must be wired externally.

📎 LOGO! DM Digital Expansion Module Comparison

6ED1055-1FB10-0BA2: DM16 230R｜8DI/8DO, AC/DC230V, relay output (this model)

6ED1055-1NB10-0BA2: DM16 24R｜8DI/8DO, DC24V, relay output

6ED1055-1MD00-0BA2: DM16 24T｜8DI/8DO, DC24V, transistor output (0.3A)

Full Model List of 6ED1055 Series (LOGO!8 Expansion Modules)

Compatible Host: LOGO!8 / 8.2 / 8.3 (suffix 0BA2/0BA3); Incompatible with legacy 0BA6/0BA7 controllers

Categories: DM digital modules, AM analog modules, TDE text display

1. Digital Expansion Modules (DM Series)

(1) DM8 Series｜4DI+4DO (2MW, 2 module width)

1. DM8 24 (Transistor Output)

Order No.: 6ED1055-1CB00-0BA2

Spec: DC24V input, 0.3A transistor output

2. DM8 24R (Relay Output)

Order No.: 6ED1055-1HB00-0BA2

Spec: DC24V input, 5A relay contact output

3. DM8 12/24R (AC/DC Universal Relay)

Order No.: 6ED1055-1MB00-0BA2

Spec: DC12/24V input, 5A relay output

4. DM8 230R (AC220V Relay, Small I/O Version)

Order No.: 6ED1055-1FB00-0BA2

Spec: AC/DC115~230V input, 5A relay output

(2) DM16 Series｜8DI+8DO (4MW, 4 module width, including your model)

1. DM16 24 (Transistor Output)

Order No.: 6ED1055-1CB10-0BA2

Spec: DC24V input, 0.3A transistor; suitable for small DC24V solenoid valves with high switching frequency

2. DM16 24R (DC24V Relay Version)

Order No.: 6ED1055-1NB10-0BA2

Spec: DC24V input, 5A relay contacts; matches NPN/PNP photoelectric & proximity switches

3. DM16 230R (This model, AC220V Relay)

Order No.: 6ED1055-1FB10-0BA2

Spec: AC/DC115~230V input, 5A passive relay contacts; directly connect 220V switch signals without intermediate relays

2. Analog Expansion Modules (AM Series, same 6ED1055 product line)
3. AM2 (2-channel Analog Input AI)

Order No.: 6ED1055-1MA00-0BA2

Signal: 0~10V / 4~20mA

2. AM2 RTD (PT100/PT1000 Temperature Input)

Order No.: 6ED1055-1MD00-0BA2

3. AM2 AQ (2-channel Analog Output AO)

Order No.: 6ED1055-1MM00-0BA2

Signal: 0~10V, 4~20mA

3. Text Display Module (TDE)

Order No.: 6ED1055-4MH08-0BA1

Function: External text display for LOGO!8; key operation, parameter modification and alarm message display

4. Model Naming Rule (6ED1055 Segment Breakdown)

6ED1055-1XX00-0BA2

1CB: DC24V transistor output

1HB: DC24V relay output

1MB: DC12/24V relay output

1FB: AC/DC230V relay output (your model)

1NB: DM16 DC24V relay

00 = DM8 (4DI/4DO); 10 = DM16 (8DI/8DO)

Suffix 0BA2: Standard revision for LOGO!8

5. DM16 3-Model Selection Comparison

6. Version Distinction
7. Suffix 0BA2 = LOGO!8 / 8.2, current production mainstream part (preferred for procurement)
8. Suffix 0BA3 = LOGO!8.3 new version; hardware fully interchangeable, direct drop-in replacement
9. Older 0BA0/0BA1 versions are phased out; always select 0BA2 for new projects.