Siemens 6ES7331-7SF00-0AB0 Analog Input Module
$209.00
$530.00
Description
Product Description
The Siemens 6ES7331-7SF00-0AB0 is an 8-channel analog input module designed for the SIMATIC S7-300 PLC system. It provides high-precision signal acquisition from sensors, delivering reliable analog-to-digital conversion with 13-bit resolution.
This module supports voltage and current inputs, including 0–20 mA, 4–20 mA, and ±10 V DC ranges, enabling accurate monitoring of temperature, pressure, flow, and other process variables. Integrated galvanic isolation protects the PLC system from electrical interference, while the compact design allows seamless installation in S7-300 racks alongside digital, communication, and other analog modules.
Although the S7-300 series is now replaced by S7-1500 and ET 200SP modules, the 6ES7331-7SF00-0AB0 remains a critical spare part for legacy installations requiring precision analog measurements.
Technical Specifications
| Attribute | Details |
|---|---|
| Brand | Siemens |
| Model | 6ES7331-7SF00-0AB0 |
| System Compatibility | SIMATIC S7-300 PLC |
| Product Type | Analog Input Module (SM 331) |
| Channels | 8 Analog Inputs |
| Resolution | 13-bit |
| Input Voltage Range | ±10 V DC |
| Input Current Range | 0–20 mA or 4–20 mA (configurable) |
| Conversion Time | ~0.6 ms per channel |
| Accuracy | ±0.5% of full scale |
| Isolation | Galvanic isolation between channels and backplane bus |
| Power Supply | Via S7-300 backplane bus |
| Dimensions | 125 × 40 × 120 mm |
| Weight | 300 g |
| Protection Rating | IP20 |
| Special Features | Supports thermocouples, Pt100, diagnostics-capable, PTB tested |
Key Features
-
High-resolution 13-bit signal acquisition for precise measurements.
-
8 analog inputs configurable for voltage or current signals.
-
Integrated galvanic isolation ensures safe operation.
-
Compact design for space-efficient rack installation.
-
Supports thermocouple and Pt100 inputs for process monitoring.
-
Diagnostics-capable and PTB tested for hazardous area signals.
Applications
-
Factory Automation: Monitoring analog sensors in production lines.
-
Process Control: Measuring temperature, pressure, and flow in chemical and refining processes.
-
Energy Systems: Acquisition of analog signals from turbines, generators, and substations.
-
Infrastructure: Building automation, environmental monitoring, and remote analog data collection.
FAQ
Q: What input types are supported by this module?
A: Voltage (±10 V DC) and current (0–20 mA, 4–20 mA), plus thermocouples and Pt100 sensors.
Q: Can this module be used in hazardous areas?
A: Yes, PTB-tested modules support signals from hazardous zones with integrated diagnostics.
Q: Is it compatible with S7-1500 or ET 200SP?
A: No, this module is only for S7-300 racks; newer S7-1500/ET 200SP modules require dedicated I/O modules.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
Featured
Complementary products
Express Delivery
Fast shipping for your urgent needs.
Large Inventory
Extensive stock ensures quick availability.
Premium Quality
Genuine, high-grade PLC & DCS components.
24/7 Customer Support
Reliable service for clients worldwide.