Assignment Of Channels Of The Sm 331; Ai 8 X 12 Bits To Channel Groups - Siemens SIMATIC S7-300 Reference Manual
Programmable logic controllers module data
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Table 4-65 Parameters of the SM 331; AI 8 x 12 bits, continued
Parameter
Measurement
•
Measuring Method
•
Measuring Range
•
Interference
Suppression
Channel groups
The channels of the SM 331; AI 8 x 12 bits are arranged in four groups of two. You
can only ever assign parameters to one channel group.
The analog input module SM 331; AI 8 x 12 bits has a measuring range module for
each channel group.
The table below shows which channels are parameterized as a channel group in
each case. You will need the channel group number to set the parameters in the
user program with an SFC.
Table 4-66 Assignment of Channels of the SM 331; AI 8 x 12 bits to Channel Groups
Channels ...
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Value Range
Deactivated
U
Voltage
4DMU Current (4-wire transmitter)
2DMU Current (2-wire transmitter)
R-4L
Resistance
(four-conductor connection)
RTD-4L Bulb resistor
(linear, four-conductor
connection)
TC-I
Thermocouple
(internal comparison)
TC-E
Thermocouple
(external comparison)
TC-IL
Thermocouple
(linear, internal comparison)
TC-EL Thermocouple
(linear, external comparison)
Refer to Section 4.22.2 for the
measuring ranges of the input
channels that you can set.
400 Hz; 60 Hz; 50 Hz; 10 Hz
Default
Settings
U
Dynamic
"10 V
50 Hz
... form one Channel Group each
Channel group 0
Channel group 0
Channel group 1
Channel group 1
Channel group 2
Channel group 2
Channel group 3
Channel group 3
Analog Modules
Para-
Scope
meter
Type
Channel or
Channel
group
4-121
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