The Siemens LOGO! AM2 RTD Expansion Module (6ED1055-1MD00-0BA2) is designed to extend the temperature measurement capabilities of Siemens LOGO! 8 basic units. Powered by 12 V or 24 V DC, this module enables precise acquisition of temperature data using Pt100 and Pt1000 resistance temperature detectors (RTDs).
The module provides 2 analog RTD input channels with support for 2-wire or 3-wire connections, allowing flexible integration of temperature sensors in automation systems. It supports a temperature measurement range of approximately -50 °C to +200 °C, making it suitable for HVAC, industrial process monitoring, and building automation applications.
Designed exclusively for resistance thermometer inputs, the LOGO! AM2 RTD does not support voltage or current signals, ensuring optimized accuracy and stability for temperature measurement tasks. Its compact DIN-rail design allows easy installation and efficient use of space in control cabinets.
As a trusted supplier of Siemens automation solutions,
Bardia Control Systems
supplies original Siemens LOGO! expansion modules with technical support and fast delivery across the UAE. Additional compatible controllers and accessories are available in our
Siemens Automation Technology
range.
For independent technical background on PLC-based temperature measurement and RTD integration, refer to the following industry article:
What Is a PLC and How Does It Work?
Technical Specifications
| Brand | Siemens |
| Product Family | LOGO! 8 Expansion Modules |
| Model | LOGO! AM2 RTD |
| Part Number | 6ED1055-1MD00-0BA2 |
| Product Type | RTD Analog Input Expansion Module |
| Mounting Type | 35 mm DIN rail, 2 spacing units wide |
| Supply Voltage (DC) | 12 V / 24 V DC |
| Permissible Voltage Range | 10.8 – 28.8 V DC |
| Current Consumption | Typ. 30 mA |
| Analog Inputs | 2 AI (RTD) |
| Input Type | Resistance thermometer |
| Sensor Types | Pt100 / Pt1000 |
| Connection Type | 2-wire / 3-wire |
| Voltage Input | Not supported |
| Current Input | Not supported |
| EMC Compliance | EN 55 011, Class B |
| Degree of Protection | IP20 |
| Operating Temperature | 0 °C to +55 °C (ES03+: -20 °C) |
| Dimensions (W × H × D) | 35.5 × 90 × 58 mm |
| Standards & Approvals | CE, CSA, UL, FM, Marine |
| Standards Compliance | IEC 61131 |