Measuring Methods And Ranges - Siemens SIMATIC S7-300 Manual

Analog modules
6.10 Analog input module SM 331; AI 8 x TC; (6ES7331-7PF11-0AB0)
6.10.1

Measuring methods and ranges

Introduction
Use the "measuring method" parameter in
measuring range.
Table 6-27
Selected measuring method
TC-L00C:
(thermocouple, linear, 0 °C reference temperature)
TC-L50C:
(thermocouple, linear, 50 °C reference temperature)
TC-IL:
(thermocouple, linear, internal comparator)
TC-EL:
(thermocouple, linear, external comparison)
Channel groups
The channels of SM 331; AI 8 x TC are arranged in four groups of two channels. You always
assign parameters to a channel group.
The table below shows the relevant configuration of channel groups. You will need the
channel group number to set the SFC parameters in the user program.
Table 6-28
Channels ...
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
6-94
Measuring methods and ranges
Assignment of SM 331; AI 8 x TC channels to channel groups
... form one channel group each
Channel group 0
Channel group 1
Channel group 2
Channel group 3
STEP 7
to set the measuring method and
Measuring range
Type B
Type C
Type E
Type J
Type K
Type L
Type N
Type R
Type S
Type T
Type U
Type Txk / xk (L)
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04