Siemens SIMATIC - Page 369

Analog modules
6.8 Analog input module SM 331; AI 2 x 12 Bit; (6ES7331-7KB02-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
369
Wiring: Thermocouple with external compensation
Insert a bridge between Comp+ and M
ANA
when using the internal compensation.
Figure 6-18 Wiring and block diagram
Measuring range module settings
Measuring range
Measuring range module setting
TC-I: Thermocouple
(internal comparison) (thermal voltage meas-
urement)
Type N [NiCrSi-NiSi]
Type E [NiCr-CuNi]
Type J [Fe-CuNi]
Type K [NiCr-Ni]
Type L [Fe-CuNi]
A
TC-E: Thermocouples
(external comparison)
(thermovoltage measurement)
TC-IL: Thermocouples (linear, internal com-
parison)
(temperature measurement)
Type N [NiCrSi-NiSi]
Type E [NiCr-CuNi]
Type J [Fe-CuNi]
Type K [NiCr-Ni]
Type L [Fe-CuNi]
A
TC-EL: Thermocouples
(linear, external comparison)
(temperature measurement)
Type N [NiCrSi-NiSi]
Type E [NiCr-CuNi]
Type J [Fe-CuNi]
Type K [NiCr-Ni]
Type L [Fe-CuNi]
A