Siemens PCS 7 Installation Manual page 14

PC components of a PCS 7 system
3.1 Basic configuration of the PCS 7 plant
Legend for figure
Station
Engineering station
(Page 16)
Operator station
(Page 17)
Maintenance Station
(Page 17)
BATCH station
(Page 17)
Route Control Station
(Page 17)
Bus system (terminal
bus and plant bus)
(Page 39)
Automation
system
SIMATIC PCS 7 BOX
(Page 35)
14
Function
You configure and download all system components of PCS 7 with the engineering station: Oper‐
ator stations, BATCH stations, Route Control stations, automation systems, central and distributed
I/O.
Engineering stations are PCs on which the PCS 7 engineering software is installed for the config‐
uration of a PCS 7 project.
The operator station is used to operate and monitor the PCS 7 system in process mode.
You connect the operator station to the plant bus to enable the required data communication with
the automation system.
Operator stations are PCs on which the PCS 7 OS software is installed.
The operator station can be designed as a single-station system for smaller plants and less strin‐
gent requirements. In larger plants with more stringent requirements, the OS can be designed as
a multiple-station system with OS servers and OS clients.
The maintenance station is based on an operator station (OS). This OS focuses on "Plant Asset
Management" and enables diagnostics and maintenance of the plant.
When the diagnostics structure is created in the plant hierarchy, an OS is assigned the functions
for asset management. The OS functions can be supplemented with diagnostics functions and
program packages for a specific plant.
Note: The Engineering Station is used as a Maintenance Client. The Maintenance Station access‐
es SIMATIC PDM when SIMATIC PDM is in use.
The BATCH station is used to operate and monitor batch process sequences in process mode.
A connection to an operator station is required for data communication with the automation system.
The BATCH station is connected to the terminal bus for this purpose.
BATCH stations are PCs on which the SIMATIC BATCH software is installed.
You use a route control station (RCS) to automate the transport of materials and products in a
PCS 7 plant.
The route control station is connected to the plant bus to provide the required data communication.
A connection to an operator station is required to display messages.
Route Control stations are PCs on which the SIMATIC Route Control software is installed.
The PCS 7 AS, OS, BATCH, RCS and ES components communicate (between and among each
other) via a bus system (Industrial Ethernet). In PCS 7 plants, this bus is divided into:
● A terminal bus for communication between the following components:
– Operator control and monitoring systems (OS, BATCH, RCS)
– Engineering station
– Higher-level components (for example, MES, office networks)
● A plant bus for communication between:
– Servers (OS, RCS) and automation systems
– Automation systems (SIMATIC connections)
The automation system performs the following tasks:
● The AS acquires and processes the process tags from the connected I/O (centralized and
distributed) and outputs control information and set points to the process.
● The AS supplies the operator station with data for visualization.
● The AS recognizes operator inputs and returns them to the process.
A SIMATIC PCS 7 BOX is an industrial PC for small plants. It can encompass the functions of a
PCS 7 process control system (engineering, automation, operator control and monitoring) when
used in conjunction with distributed I/O.
PCS 7 - PC Configuration (V8.2)
Installation Manual, 03/2016, A5E36200050-AB