Siemens SIMATIC S5-95U Programmable Controller Second Serial Interface Manual

About this manual

This Product Manual for the Siemens SIMATIC S5-95U programmable controller covers the second serial interface (SI2). It is a supplement to the S5-90U/S5-95U System Manual and describes the functions possible at SI2, including point-to-point links with SINEC L1 protocol, computer links with 3964(R) transmission protocol, and the ASCII driver.

The manual explains data traffic, coordination bytes, DB1 parameter assignment, and sample programs for the communication mechanisms. Appendices cover DB1 parameters and parameterizing errors, parameter positions in the system data area and ASCII code, abbreviations, accessories and order numbers, and technical data including scan on-load times of the PLC when using the second serial interface.

What's inside

• Introduction
• Description of the System
• Point-To-Point Link with SINEC L1 Protocol
• Computer Link with 3964(R) Transmission Protocol
• ASCII Driver
• DB1 Parameters, DB1 Parameterizing Errors
• Positions of the Parameters in the System Data Area, ASCII Code
• List of Abbreviations
• Accessories and Order Numbers
• Technical Data, Scan On-Load Times of the PLC

Frequently asked questions

What does this manual describe?

It describes all functions possible at the second serial interface of the S5-95U (SI2).

What protocol is used for a point-to-point link?

A point-to-point link uses the SINEC L1 protocol.

Does this manual replace the S5-90U/S5-95U System Manual?

No. It is a supplement to the S5-90U/S5-95U System Manual.

Where is installation and startup information found?

It is in the S5-90U/S5-95U System Manual.