Manual
| System Manual
41
Segment
The internal system connection supports a left and a right segment. Slot
0 and 2 belong to the left segment, slot 1 and 3 to the right segment.
SELV
Safety Extra Low Voltage.
Simatic Manager
Programming software for program-logic controllers made by Siemens.
PLC
Program-logic controller
Line
If modules are connected to slot 0, it is called "connected to line 0".
TH
Thermoelement / thermocouple.
TH+
High potential sensor connection
TH-
Low potential sensor connection.
Type E, Type J, Type K,
Type N, Type R
Thermoelements as per DIN EN 60584 standard.
U
Voltage
U/I
Voltage / current
UA (brown terminal)
Actuator supply
UA (red terminal)
Module supply
UB
Operating voltage
UI (red terminal)
Module and sensor supply
US (brown terminal)
Sensor supply
VDMA
Verband Deutscher Maschinen- und Anlagenbau e.V. (Association of
German Machinery and Industrial Equipment Manufacturers)
VZ
Sign.
ZVEI
Zentralverband Elektrotechnik- und Elektronikindustrie e.V. (German
Electrical and Electronic Manufacturers' Association).
