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IEC 870-5-101/IEC 870-5-104 telecontrol protocol 25

IEC 870-5-104 - example of complex TCP/IP-based WAN with cable and GPRS networks

It is also possible to connect an outstation via two transmis-

sion paths to the control center in the SIMATIC PCS7 process

control system to achieve redundant data transmission.

Redundant transmission paths can be based on the same

or different communication protocols.

IEC 870-5-101/104 - example of redundant telecommunication links (IEC 870-5-101 representation without modems)

SCALANCE

S613

IEC 870-5-104

Ethernet

IEC 870-5-104

MD741

G_PCS7_XX_00271

Third-Party RTU

Control center

SIMATIC PCS 7 TeleControl

Internet

GPRS radio

network

DSL router

RTU S7-300

with CP 343

RTU ET 200S

with IM 151-8

PN/DP CPU

Complex network structure,

combination of different

topologies and media

RTU S7-400 with

CP 443

RTU S7-300 with

CP 343

RTU ET 200S

with IM 151-8

PN/DP CPU

IEC 870-5-104

G_PCS7_XX_00272

IEC 870-5-101IEC 870-5-104

Control center

SIMATIC PCS 7 client

PCS 7 TeleControl

OS server,

redundant

RTU S7-300

with 2 x CP 343

RTU S7-300

with CP 343 (left)

and CP 341

RTU ET 200S

with IM 151-8 PN/DP CPU

and 1 SI interface module

RTU S7-400 with

2 x CP 443

RTU S7-400 with CP 443

(left) and CP 441

Path

redundancy,

1 medium

Redundant system bus

Terminal bus (Ethernet)

TCP/IP to serial

converter