Siemens Simatic S7-300 - Page 297

Analog modules
6.8 Analog input module SM 331; AI 2 x 12 bit; (6ES7331-7KB02-0AB0)
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
6-63
Wiring: Thermocouple with external compensation
With internal compensation, there must be a bridge between Comp+ and M
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Figure 6-19 Wiring and block diagrams
Measuring range module settings
Measuring range Measuring range module setting
TC-I: Thermocouple
(internal comparison) (thermal voltage
measurement)
TC-E: Thermocouples
(external comparison)
(thermal voltage measurement)
Type N [NiCrSi-NiSi]
Type E [NiCr-CuNi]
Type J [Fe-CuNi]
Type K [NiCr-Ni]
Type L [Fe-CuNi]
A
TC-IL: Thermocouples (linear, internal
comparison)
(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