User's Manual

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Application examples 31

Automation of a sewage treatment plant

with pumping station and stormwater overflow tank

Symbolic technical representation of a sewage treatment plant

Uniform control of the complete wastewater network

• SIMATIC PCS 7 process control system in the sewage treat-

ment plant

• SIMATIC PCS 7 TeleControl with SIPLUS RIC telecontrol tech-

nology on the basis of the IEC 870-5-104 protocol

• Combination of process control at one operator station

(PCS 7 OS client)

• Compliant process control with uniform faceplates, alarms,

trends etc.

Cost-effective RTUs exactly matched to the respective unit

• S7-300 controller for pumping station

• ET 200S with integral CPU for stormwater overflow tank

Secure communications

• Protection of telecontrol network by SCALANCE S613

industrial security module

• Application of GPRS technology

Reporting and archiving in compliance with

ATV-DVWK M 260

With application of the SIMATIC PCS 7 add-on product ACRON

System architecture of sewage treatment plant automation with SIMATIC PCS 7 TeleControl

Municipal sewerage

system

Mechanical

purification

Biological

purification

Sludge treatment

Industry

Private

households

Stormwater

overflow tank

Dosing of precipitant

Pumping

station

Lifting

equipment

Screen

Drainage

Aeration

Gasometer

Sludge

dewatering

Sludge output

Combined heat

and power plant

Preliminary sedimentation

Pre-

thickening

Digestion tank Dosing of flocculent

Final clarification

Sand and

grease trap

Digestion tank

Delivery of

fecal matter

Industrial Ethernet

IEC 870-5-104

Industrial Ethernet

PROFIBUS

MD741

G_PCS7_XX_00278

IEC 870-5-104

GPRS

SIMATIC PCS 7 OS clients

SIMATIC PCS 7

controller

PCS 7 TeleControl OS

server (redundant)

PROFIBUS I/O

approx. 500 I/Os

Inflow

pre-treatment

SIMATIC PCS 7

controller

PROFIBUS I/O

approx. 500 I/Os

Aeration blowing

station

SIMATIC PCS 7

controller

PROFIBUS I/O

approx. 500 I/Os

Sludge

treatment

Local

station

Local

station

Sewage plant

Pumping station

Stormwater overflow tank

DSL router

SCALANCE

S613

ET 200S

with IM 151-8 CPU

approx. 25 I/Os

S7-300

approx. 150 I/Os

Internet