Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual page 169

I/O device analog input/analog output
10.1 I/O device analog input
Parameters
Reference junction for ther­
moresistor (TC)
Temperature coefficient
Smoothing
Diagnostics, wire break
Diagnostics, underflow
Diagnostics, overflow
1 This value can also be shown as α = 0.00385055 in the parameter assignment.
Measuring type with 8 AI RTD
The following table lists the temperature coefficients and measuring ranges you can assign
for each measurement type:
Thermoresistor 4-conductor
Thermoresistor 3-conductor
Thermoresistor 2-conductor
170
Range of values
• Ni1000 Standard range
• TC_EL Typ_N_[NiCrSi_NiSi]
• TC_EL Typ_E_[NiCr_CuNi]
• TC_EL Typ_J_[Fe_CuNi]
• TC_EL Typ_K_[NiCr_Ni]
• None
• Internal
• RTD (0)
• Dynamic Ref. Temp.
• Fixed Ref. Temp.
• Pt 0.003916
• Pt 0.003902
• Pt 0.00392
1
• Pt 0.003851
• Ni 0.00618
• Ni 0.00672
• Ni 0.005000
• None
• Weak
• Medium
• Strong
• Disable
• Enable
• Disable
• Enable
• Disable
• Enable
Measurement type
Default setting
Internal
Pt 0.003851
None
Disable
Disable
Disable
Temperature coefficient
1, 2
Pt 0.003851 /
Pt 0.003916/
Pt 0.003902/
Pt 0.003920
Operating Instructions, 06/2022, A5E01250250-AN
Range of effectiveness
Channel
1
Channel
Channel
Channel
Channel
Channel
Measuring range
Pt100 Climatic range /
Pt100 Standard range /
Pt200 Climatic range /
Pt200 Standard range /
Pt500 Climatic range /
Pt500 Standard range /
Pt1000 Climatic range /
Pt1000 Standard range
ET 200eco PN