Technical data

46 References

References

SIMATIC ET 200S with PROFINET

Peterstaler Mineralquellen, Germany –

Bottling of mineral water

Requirements

Peterstaler Mineralquellen GmbH operates bottling plants at

two sites in the Black Forest for their mineral water and non-

alcoholic beverages. To improve the flexibility and capacity uti-

lization of these two plants, they have been connected togeth-

er using pipes in a project that is unique in this sector. Great

emphasis was placed here on the communication between

the two head stations and the substations along the route that

had to be suitable for automation and telephone purposes.

Solution

The decision was in favor of an integrated, distributed solution

using PROFINET. A single-mode fiber-optic network based on

Ethernet (14 km distance) forms the backbone for the commu-

nication for the automation systems and the Voice-over-IP be-

tween the two sites. The mainstays of the automation solution

are PROFINET-capable S7-300 controllers that are connected

to the fiber-optic backbone via switches. The actuators and

sensors of the field level (such as valve terminals) are connect-

ed to the integrated PROFINET interface via SIMATIC ET 200S

distributed I/O devices.

Benefits

Thanks to the integral PROFINET functionality in the control-

lers of the S7-300 range as well as the SIMATIC ET 200S I/O,

the automation devices could be directly connected to the

Ethernet-based single-mode network. When programming

with SIMATIC STEP 7, there is no distinction between accessing

an I/O device such as SIMATIC ET 200S over PROFIBUS or

PROFINET, so the expertise gained by the customer with

PROFIBUS was safeguarded.

The important advantage of PROFINET over standard Ethernet

according to the customer are the cycle times of between 5 ms

and 10 ms that can be achieved over the real-time channel

without which the extremely demanding closed-loop control

tasks of this application would not have been possible over

large distances.

"We are very satisfied with this solution: Transporting the

mineral water over the hill has been problem-free since then.

Transport by truck became unnecessary and this reduced the

associated pollutant emission, which in turn was evaluated

very positively in our current environment protection audit ac-

cording to ISO 14001."

Wolfgang Sum, Manager