Siemens PCS 7 - Page 18

Properties of multiple and single station systems
Property Multiple-station system Single station system
Areas of applica‐
tion
Medium-sized and large systems
● Small systems
● Local operator stations
● Training systems
Configuration Client-server architecture with multiple PCs:
● Operator station multiple station system
(Page 22)
● BATCH station multiple station system
(Page 24)
● Route control station multiple station system
(Page 25)
● Maintenance station multiple station system
(Page 25)
One PC for all functions of a
PCS 7 application:
● OS single station system (Page 29)
● BATCH single station system (Page 32)
● Route Control single station system (Page 33)
● SIMATIC PCS 7 BOX stations (Page 35)
● Maintenance station single station system
(Page 34)
Workstations
● Maximum number of clients that a server can
supply with process data: 40
● Maximum number of permissible monitors
per server for process mode in a plant: 60
● If you operate no more than 4 clients on a
server, you can use a server as an operator
control and monitoring station.
1 workstation with a maximum of 4 monitors (de‐
pending on the application)
Maximum number of monitors that can be connected to a workstation:4 (depending on the hardware
features of the PC)
You can operate the resulting system areas with a single keyboard and mouse.
Availability To guarantee high availability of the PCS 7 plant, you can configure the server as redundant server
pairs (PCs):
● Operator station
– OS server
– MS server
● BATCH station
– BATCH server
● Route Control station
– Route Control server
● Archive server
– Process Historian
You can find additional information on this in the section "Fault-tolerant (redundant) configurations
(Page 15)".
Number of servers Maximum number of servers or server pairs in the PCS 7 plant that can simultaneously access a project
on the OS clients: 18
The following each count as one server:
● Server for multiple station systems (see configuration)
● Redundant server pair (see configuration)
● Archive server
PC components of a PCS 7 system
3.4 Differences between multiple station systems and single station systems
PCS 7 - PC Configuration (V8.2)
18 Installation Manual, 03/2016, A5E36200050-AB