Industrial Communication | Siemens | 6ES7134-4MB02-0AB0 6ES7134-4MB02-0AB0 DP Electronics Module ET 200S

Product Description: Siemens 6ES7134-4MB02-0AB0

The Siemens 6ES7134-4MB02-0AB0 is a SM 334 analog input module for the SIMATIC S7-300 system, specifically designed to measure temperatures via thermocouples. It provides four independent, fully isolated input channels, each configurable for common thermocouple types (J, K, T, E, R, S, B, N). With 16-bit resolution and built-in cold-junction compensation, the module ensures precise temperature readings for process control and monitoring applications.

Key Features

• Channels: 4 thermocouple inputs, fully isolated
• Supported TC Types: J, K, T, E, R, S, B, N (selectable per channel)
• Cold-Junction Compensation: Automatic, per channel
• Resolution: 16-bit (±0.1 °C to ±1 °C accuracy depending on TC type)
• Conversion Time: 100 ms per channel (simultaneous sampling)
• Diagnostics: Status LEDs for module health and channel fault (e.g., open circuit)
• Isolation: ≥ 500 V galvanic isolation between channels and backplane bus
• Backplane Bus: Integral S7-300 rack connector; hot- swap capable
• Protection Class: IP20 (front), IP20 (rear)

Technical Specifications

• Number of Inputs: 4 thermocouple channels
• Thermocouple Types: J, K, T, E, R, S, B, N
• Input Range: –270 °C … +1820 °C (depending on TC type)
• Resolution: 16-bit (1 LSB ≈ 0.1 °C)
• Accuracy: ±0.1 % of full scale (typical, varies by TC type)
• Sampling Time: 100 ms per channel (simultaneous)
• Cold-Junction Compensation Accuracy: ±0.5 °C
• Isolation Voltage: ≥ 500 V AC (channel to channel, channel to backplane)
• Operating Temperature: 0 °C … +60 °C
• Storage Temperature: –40 °C … +85 °C
• Dimensions (W × H × D): 40 mm × 125 mm × 75 mm
• Weight: ~ 0.25 kg

Application Areas

• Temperature measurement and monitoring in process industries
• Control of furnaces, ovens, and heat treatment systems
• HVAC system regulation
• Food, pharmaceutical, and chemical production lines requiring precise temperature control
• Integration into S7-300 automation solutions for batch and continuous processes

Advantages

• Multi-Type Support: Accepts eight standard thermocouple types for flexible deployment
• High Precision: 16-bit resolution with cold-junction compensation delivers accurate readings
• Robust Isolation: Galvanic isolation protects PLC and field wiring from interference
• Easy Integration: Hot-swappable into S7-300 rack without system downtime
• Built-in Diagnostics: Rapid fault detection minimizes process interruptions