Rs 485 Repeater - Siemens Simatic M7-400 Reference Manual

RS 485 Repeater

In this Chapter
In this chapter, you will find a detailed description of the RS 485 repeater.
Included in the description are:
• The purpose of the RS 485 repeater
• The maximum cable lengths possible between two RS 485 repeaters
• The functions of the individual operating elements and terminals
• Information about grounded and non-grounded operation
• Technical specifications and the block diagram
Further Information
You will find further information on the RS 485 repeater in the manuals
Hardware and Installation in the Chapter "Configuring of an MPI or PROFIBUS DP
network".
Chapter Overview
Section
10.1
10.2
10.3
10.4
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Application and Characteristics;
(6ES7972-0AA01-0XA0)
Appearance of the RS-485 Repeater; (6ES7972-0AA01-0XA0)
RS 485 Repeater in Ungrounded and Grounded Operation
Technical Specifications
Description
10
Page
10-2
10-3
10-4
10-6
10-1