Home » Products » SIEMENS 6ES7370-0AA01-0AA0 SIMATIC S7-300 Dummy Module

SIEMENS 6ES7370-0AA01-0AA0 SIMATIC S7-300 Dummy Module

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Part No.: 6ES7370-0AA01-0AA0

Gross Weight: 1kg

1 Year Warranty

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Description

Reserve slot space and maintain bus continuity with Siemens 6ES7370-0AA01-0AA0. This DM 370 dummy module protects vacant slots and ensures future expandability. GoldRayline maintains direct inventory and provides efficient global dispatch.

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In stock • Worldwide fast shipping • Bulk discount available

Product Overview

Slot Reservation and Mechanical Protection

The 6ES7370-0AA01-0AA0 is a specialized dummy module (DM 370) designed for the S7-300 platform. Its primary function is to reserve a physical slot on the DIN rail for future I/O expansion without interrupting the backplane bus communication. It protects the sensitive backplane connectors from dust and mechanical damage while maintaining the structural integrity of the PLC rack. This module is typically utilized during the initial phase of machine construction when the final I/O count is expected to increase, or when a specific slot must remain unoccupied for thermal management or electrical isolation purposes.

Direct Inventory & Supply Continuity

GoldRayline serves as a professional source for original S7-300 mechanical and bus accessories. We maintain a ready-to-ship inventory of the DM 370 to support the flexible configuration of established automation systems. Our business model focuses on price transparency and a streamlined supply chain. By providing an alternative to traditional procurement channels that often prioritize high-value active modules, we prioritize rapid order processing and global express services to help you complete your rack assemblies without delay.

Specifications

Model Number	6ES7370-0AA01-0AA0	Product Brand	SIEMENS
Product Type	Dummy Module (DM 370)	Product Series	SIMATIC S7-300
Function	Slot Reservation	Bus Connection	Backplane Continuity
Configuration	Parameterizable (STEP 7)	Width	40 mm
Isolation	Not Required	Supply Voltage	Not Required
Current Draw	0 mA	Power Loss	0 W
Dimensions	40 × 125 × 120 mm	Protection	IP20
Operating Temp.	0 °C to +60 °C	Net Weight	approx. 180 g

Related Siemens SIMATIC S7-300 Modules

GoldRayline stocks various mechanical accessories and I/O units from our 3,911-item database to complement the DM 370 and provide complete rack solutions for your PLC system.

Model Number	Module Type	Feature	Connection
6ES7390-1AE80-0AA0	Mounting Rail	480mm Standard Rail	DIN Mounting
6ES7392-1AJ00-0AA0	Front Connector	20-Pin Screw Terminal	Wiring Accessory
6ES7392-1AM00-0AA0	Front Connector	40-Pin Screw Terminal	Wiring Accessory
6ES7390-0AA00-0AA0	Bus Connector	Standard U-Connector	Backplane Link
6ES7307-1KA02-0AA0	Power Supply	PS 307 10A	120/230V AC
6ES7321-1BL00-0AA0	Digital Input	32-Channel 24V DC	40-pin Connector
6ES7322-1BL00-0AA0	Digital Output	32-Channel 24V DC	40-pin Connector

Can the DM 370 be used to replace a failed module temporarily?

Yes. If an I/O module fails and must be sent for repair, the Siemens 6ES7370-0AA01-0AA0 can be inserted into the vacant slot. This ensures the backplane bus is not left exposed to the environment and maintains the mechanical alignment of the remaining modules on the rail.

Is it necessary to wire the dummy module?

No. The 6ES7370-0AA01-0AA0 is a non-electronic, passive component. It has no terminals for field wiring and therefore does not require a front connector. Its only “connection” is the standard U-shaped bus connector on the back to pass the signal to the next module.

How do I handle the DM 370 in the STEP 7 Hardware Configuration?

You have two choices: leave it as a simple mechanical spacer (no configuration) or configure it as a “Dummy Module.” If you configure it, the CPU will reserve the I/O address space you specify, making it much easier to swap in a real digital or analog module later without changing the PLC program.

Why should a trader keep the DM 370 in stock?

While it is a passive part, the 6ES7370-0AA01-0AA0 is often forgotten during the initial BOM (Bill of Materials) phase. For international traders, having this part available for immediate shipment can save a client’s project timeline when they realize they need to fill a physical gap in a customized S7-300 rack.

Does this dummy module have any impact on the PLC scan time?

No. Since the Siemens 6ES7370-0AA01-0AA0 does not process any I/O data or execute logic, it has zero impact on the CPU’s processing time. It simply acts as a bridge for the backplane communication.

What is the best way to clean or maintain this module?

As a protective component, it should be kept free of metallic dust. GoldRayline recommends ensuring the backplane pins are clean before installation. Because it produces no heat (0W power loss), it can be placed anywhere on the rack without affecting the thermal profile of adjacent analog modules.

How does GoldRayline ensure the reliability of these mechanical parts?

We focus on sourcing original Siemens hardware to ensure the plastic housing and bus guides meet the strict industrial tolerances required for S7-300 rails. Following order verification, we utilize efficient global logistics to deliver the 6ES7370-0AA01-0AA0 to your facility promptly.

Why Choose Goldrayline?

Sufficient Inventory & Stable Resources

We maintain ample stock and stable supplier resources to ensure quick order fulfillment and minimize operational downtime.

1-Year Warranty

We stand behind the reliability of our genuine Siemens products with a comprehensive 1-year warranty for complete peace of mind.

Competitive Pricing & Expert Support

Access transparent pricing and direct technical assistance from our certified engineers for seamless integration.

Fast Shipping

Orders typically shipped within 3-7 days, significantly reducing your waiting time for critical components.

Service Information

Payment

Acceptable payment methods include: bank transfer, paypal, Alipay collection, wechat collection, L/C collection, AliExpress online payment, etc

Fees for various collection methods:

Paypal : 5%

Bank Transfer: $35~$55

Alipay and wechat pay : for free

AliExpress online payment: 10%

eBay payment online: 15%

L/C handing fee : $500~$650

Returns Policy

At GoldRayline, we stand by our products with a No-Hassle 15-Day Returns Policy. If you’re unsatisfied for any reason, simply contact our dedicated Customer Support Team at [email protected] within 15 days of delivery for a full refund or exchange.

Key Terms:
Quick Processing: Refunds issued within 5 business days of receiving returned items.
Condition: Products must be unused, in original packaging, and include proof of purchase.
Support: Our team assists with returns tracking and resolves issues promptly.
Shop confidently—your satisfaction is our priority.

After-Sales Support

Contact Support: Reach out via our dedicated after-sales email at [email protected]. Include the product’s alarm code or clear photos/videos of the issue for faster resolution.
Swift Resolution: Our GoldRayline After-Sales team will review your case and contact you within 24 hours to provide tailored solutions, including repair, replacement, or refund, based on the fault assessment.

Shipping

In most cases, orders can be shipped within a week;

We provide tailored shipping solutions, including UPS, FedEx, DHL, and AliExpress Standard Shipping, based on customer requirements.

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