Product Overview

The Siemens 6ES5735-1BD20 is a specialized interface cable designed to facilitate communication between legacy Siemens Simatic S5 automation equipment and peripheral hardware. This 3.2-meter assembly is specifically engineered to link PT 8.x or DR 2.x series serial printers to PG/OP 396 programming and operator panel interfaces. It is a critical component for maintaining hardcopy logging and diagnostic reporting capabilities in established industrial control environments, such as chemical processing, power distribution, and manufacturing plants.

Technical Integrity and Signal Transmission

Designed for the harsh electrical environments typical of industrial facilities, this cable utilizes a 20 mA current loop interface. This signaling method is inherently resistant to the electromagnetic interference (EMI) and ground potential shifts commonly found near high-voltage switchgear and large motors. The cable features robust shielding, including an aluminum-mylar foil layer combined with a tinned copper braid, ensuring data integrity over its 3.2-meter span. The connectors are built for mechanical durability, providing a secure, vibration-resistant connection to the control hardware.

Features

• Reliable 20 mA current loop communication for industrial serial data transfer.
• High-grade shielded construction to mitigate electromagnetic noise and signal attenuation.
• Designed for legacy integration with PG/OP 396 interfaces and compatible serial printers.
• Rugged connector housing suitable for continuous operation in control cabinet environments.
• 3.2-meter length provides flexible routing options within standard control enclosures.

Installation Guidelines

• Ensure all equipment is powered down before connecting or disconnecting the cable to prevent transient voltage damage to the communication ports.
• Route the cable away from high-voltage power lines and variable frequency drive (VFD) output cables to minimize potential inductive interference.
• Verify that the current loop configuration (active/passive) matches the requirements of both the printer and the PG/OP interface.
• Secure the sub-D connectors fully to ensure gas-tight mechanical mating and prevent intermittent signal loss due to vibration.
• Avoid sharp bends or kinks in the cable during installation to maintain the integrity of the internal shielding and conductors.

Technical Specifications

FAQ

What is the primary function of this cable? It serves as a dedicated communication link for transmitting alarm logs and operational data from legacy serial printers to Siemens PG/OP 396 interfaces.

Why is a 20 mA current loop used instead of standard RS-232? The 20 mA current loop is significantly more robust against electrical noise and ground loops, making it the preferred standard for reliable data transmission in heavy industrial settings.