Siemens SIMATIC PCS 7 Function Manual page 15

Short designation
OS client
BATCH server
BATCH client
Route Control
server
Route Control cli‐
ent
Plant bus, terminal
bus
S7-400H
PS
CPU
CP
IM
SM
ET 200M
Fieldbus
Sensor
Fault-tolerant Process Control Systems (V8.1)
Function Manual, 11/2014, A5E34878832-AA
2.1 Rationale for using fault-tolerant process control systems
Meaning
Operator station, PC visualization station in the project form "WinCC Client"
BATCH station, PC recipe and batch data station
BATCH station, PC recipe creation and batch visualization station
Route Control station, PC Route Control data station
Route Control station, PC Route Control visualization station
Bus systems for communication over Industrial Ethernet (electrical or optical)
SIMATIC S7 fault-tolerant automation system, or H system for short
Power supply
Central processing unit
Communications processor
Interface module
Signal module / I/O module in analog or digital form
Distributed I/O device
Fieldbus for distributed I/O
Transmitters, sensors
Basics of Fault Tolerance
15