Siemens 6ES5735-1BD20 Simatic S5 Connecting Cable

Product Overview

The Siemens 6ES5735-1BD20 is a specialized connecting cable engineered for integration within Simatic S5 automation environments. This 3.2-meter assembly is designed to establish a stable communication bridge between serial printers (such as the PT 8.x and DR 2.x series) and PG/OP 396 programming or operator panel hardware. By ensuring a reliable physical connection, this cable enables the generation of essential diagnostic reports and operational logs, which are vital for maintaining compliance and conducting sequence-of-events analysis in legacy industrial installations.

Technical Design and Signal Integrity

Engineered for demanding industrial conditions, this cable utilizes a 20 mA current loop interface. This current-based signaling method is specifically chosen for its high noise immunity, effectively mitigating the risks of electromagnetic interference and ground potential differences often found in environments with heavy electrical switchgear. The cable construction features high-quality shielding to protect signal integrity across its 3.2-meter length, while the integrated sub-D connectors are designed for secure, vibration-resistant mating in control cabinet configurations.

Features

• Reliable 20 mA current loop communication interface.
• Designed for legacy Siemens Simatic S5 hardware, including PT 8.x/DR 2.x printers and PG/OP 396 terminals.
• Robust shielding architecture to minimize signal attenuation and interference.
• High-durability connector housing suitable for industrial control panel environments.
• 3.2-meter length provides flexible routing within existing enclosures.

Technical Specifications

Installation Guidelines

• Ensure the control system is powered down before connecting or disconnecting the cable from the PG/OP or printer interfaces.
• Route the cable away from high-voltage power lines and variable frequency drive (VFD) cables to prevent induced noise, despite the cable's inherent immunity.
• Verify that the sub-D connector screws are fully tightened to ensure gas-tight mechanical contact and prevent intermittent signal loss due to vibration.
• Avoid sharp bends or kinks in the cable during routing to maintain the integrity of the internal shielding layers.

FAQ

Is this cable compatible with modern Ethernet-based printers?

No, this cable is specifically designed for the 20 mA current loop protocol used by legacy Simatic S5 serial printers and is not compatible with standard Ethernet or modern USB serial interfaces.

Does the cable require external power?

No, the 6ES5735-1BD20 is a passive assembly. It relies on the current loop signals provided by the connected Siemens hardware and does not require a separate power supply.