Rs 485 Repeater - Siemens SIMATIC S7-300 Hardware And Installation Manual

RS485 bus connector
Table 5-17
RS485 bus connector, up to 12 Mbps,
with 90deg cable exit,
without PG interface,
with PG interface
Fast Connect RS485 bus connector, up to 12 Mbps,
with 90deg cable exit, with insulation displacement
technology
, without PG interface,
with PG interface
RS 485 bus connector up to 12 Mbps
with 35deg cable exit (not CPU 31xC, 312, 314 (6ES7314-
1AF10-0AB0) or 315-2 DP (6ES7315-2AG10-0AB0))
without PG interface
with PG interface
Application
You require these bus connectors to connect the PROFIBUS cable the an MPI or
PROFIBUS-DP interface
You do not require a bus connector for:
• DP slaves with degree of protection IP 65 (e.g. ET 200C)
• RS485 Repeater.
RS485 Repeater
Table 5-18
RS485 Repeater
Purpose
An RS485 repeater amplifies data signals on bus lines and interconnects bus
segments.
You require this RS485 Repeater in the following situations:
• for operation with more than 32 network nodes
• when interconnecting a grounded and an ungrounded segment
• when exceeding the maximum line length in a segment
S7-300 Programmable Controller Hardware and Installation
A5E00105492-02
Bus connector
Type

RS 485 repeater

Type
Configuring
Order No.
6ES7 972-0BA11-0XA0
6ES7 972-0BB11-0XA0
6ES7 972-0BA50-0XA0
6ES7 972-0BB50-0XA0
6ES7 972-0BA40-0XA0
6ES7 972-0BB40-0XA0
Order No.
6ES7 972-0AA00-0XA0
5-43