© Siemens AG 2011
Automation of a sewage treatment plant
with pumping station and stormwater overflow tank
Municipal sewerage system
Industry |
| Delivery of | |
| fecal matter | ||
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Private | Pumping | Stormwater | Lifting |
households | station | overflow tank | equipment |
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| Mechanical |
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| purification |
| Preliminary sedimentation | |
Screen | Sand and | Digestion tank |
| grease trap | |
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| Dosing of precipitant |
| Biological |
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Aeration |
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| Final clarification | purification |
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| Drainage |
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| Sludge treatment |
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Preliminary sedimentation |
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| Gasometer | Combined heat | Sludge | Sludge output |
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| and power plant | dewatering |
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Pre- |
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thickening | Digestion tank | Dosing of flocculent |
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Symbolic technical representation of a sewage treatment plant |
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Uniform control of the complete wastewater network | Secure communications | ||||
• SIMATIC PCS 7 process control system in the sewage treat- | • Protection of telecontrol network by SCALANCE S613 | ||||
ment plant |
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| industrial security module |
• SIMATIC PCS 7 TeleControl with SIPLUS RIC telecontrol tech- | • Application of GPRS technology | ||||
nology on the basis of the IEC |
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• Combination of process control at one operator station | Reporting and archiving in compliance with | ||||
(PCS 7 OS client) |
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• Compliant process control with uniform faceplates, alarms, |
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trends etc. |
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| With application of the SIMATIC PCS 7 |
Cost-effective RTUs exactly matched to the respective unit
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•ET 200S with integral CPU for stormwater overflow tank
| Sewage plant | Local |
| MD741 | station |
| SIMATIC PCS 7 OS clients |
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| IEC | |
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Industrial Ethernet | Internet | approx. 150 I/Os |
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| Pumping station | |
| PCS 7 TeleControl OS | DSL router |
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| server (redundant) |
| IEC |
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Industrial Ethernet |
| SCALANCE | GPRS |
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| S613 |
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SIMATIC PCS 7 | SIMATIC PCS 7 | SIMATIC PCS 7 |
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controller | controller | controller |
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MD741 | Local | |
station | ||
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| PROFIBUS I/O |
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| PROFIBUS I/O | PROFIBUS I/O |
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| ET 200S | |||||||||||||||||||||||
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| approx. 500 I/Os |
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| approx. 500 I/Os | approx. 500 I/Os |
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PROFIBUS |
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| Inflow |
| Aeration blowing |
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| Sludge |
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| approx. 25 I/Os | ||||||||||||||||||||||
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| Stormwater overflow tank | |||||||||||||||||||||||||||
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| station |
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| treatment |
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G_PCS7_XX_00278
System architecture of sewage treatment plant automation with SIMATIC PCS 7 TeleControl
