Short designation Meaning
OS client Operator station, PC visualization station in the project form "WinCC Client"
BATCH server BATCH station, PC recipe and batch data station
BATCH client BATCH station, PC recipe creation and batch visualization station
Route Control
server
Route Control station, PC Route Control data station
Route Control cli‐
ent
Route Control station, PC Route Control visualization station
Plant bus, terminal
bus
Bus systems for communication over Industrial Ethernet (electrical or optical)
S7-400H SIMATIC S7 high availability automation system, or H system for short
PS Power supply
CPU Central processing unit
CP Communications processor
IM Interface module
SM Signal module / I/O module in analog or digital form
ET 200M Distributed I/O device
Fieldbus Fieldbus for distributed I/O
Sensor Transmitters, sensors
Basics of high availability
3.1 Motivation for using high availability process control systems
High Availability Process Control Systems (V9.0)
Function Manual, 05/2017, A5E39221836-AA 17