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Siemens SINAUT ST7 TIM 44 Comms Processor for S7-300/400

Name: Siemens 6NH7800-4AA40
Brand: Siemens
SKU: 6NH7800-4AA40
Availability: InStock

Siemens SINAUT ST7 TIM 44 Comms Processor for S7-300/400.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part number6NH7800-4AA40

System SIMATIC S7-300/S7-400

Interface MPI

External Interface RS232/RS485 for external modem/wireless

Internal Modem MD4 for Euro-ISDN

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MPI Interface RS232/RS485 Interface Integrated Euro-ISDN Modem (MD4) For S7-300/S7-400 PLCs SINAUT ST7 Protocol Support Remote Communication Capability

Product description

The Siemens SINAUT ST7 TIM 44 Communications processor (6NH7800-4AA40) is designed for SIMATIC S7-300 and S7-400 PLC systems. It features an integrated MPI interface for local communication and an RS232/RS485 interface for connecting external modems or wireless devices. This unit also includes an internal MD4 modem specifically for Euro-ISDN connections, enabling remote data communication and control.

This communications processor is vital for applications requiring remote access, data logging, and supervisory control over wide geographical areas. It is commonly used in utility networks, pipeline monitoring, and distributed industrial plants where reliable long-distance communication is essential for automation and operational management.

Source your Siemens 6NH7800-4AA40 from Stanlo Automation, a veteran-owned distributor specializing in surplus industrial parts. We provide a reliable source for critical automation components to keep your systems operational.

Technical specifications

System	SIMATIC S7-300/S7-400
Interface	MPI
External Interface	RS232/RS485 for external modem/wireless
Internal Modem	MD4 for Euro-ISDN
Protocol	SINAUT ST7

Common applications

Remote Monitoring

SCADA Systems

Telecontrol Applications

Industrial Data Communication

Utility Networks

Distributed Automation

Compatible systems

SIMATIC S7-300 PLCs SIMATIC S7-400 PLCs SINAUT ST7 Telecontrol Systems Euro-ISDN Networks

Also known as

SINAUT ST7 TIM 44 Siemens Communications Module Siemens S7 Communication Processor

Replaces / compatible with

The Siemens 6NH7800-4AA40 is a communications processor module designed to extend the communication capabilities of SIMATIC S7-300 and S7-400 PLCs, particularly for ISDN remote access.

Technical note

Expert tip

Ensure that the correct Euro-ISDN line type and configuration are set within the SINAUT ST7 software for proper modem operation.

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Frequently asked questions

What types of remote communication does the Siemens SINAUT ST7 TIM 44 (6NH7800-4AA40) support?

The Siemens SINAUT ST7 TIM 44 supports remote communication via its internal MD4 modem for Euro-ISDN connections, and also allows for external modems or wireless devices through its RS232/RS485 interface.