Siemens SIMATIC S7 - Selecting the Conversion Time of each Channel

Operation
IP244B
C79000–B8576–C865–01
3–28
3.4.2 Selecting the Conversion Time of each Channel
Thermocouples, resistance-type sensors and other general-purpose sensors may be connected
to the analog inputs.
The selected conversion time of the analog–digital converter defines the resolution in counts of
the analog input signals.
The plug-in jumper D defines the conversion time of the individual channels.
Jumper D does not have an effect in Pt 100 mode. Here, a fixed conversion time of 80 ms has
been selected.
Jumper D Conversion time and resolution
(X6/3-4)
inserted 60 ms = 0...51, 2 mV (channels 0...12) or 0...512 mV
= 0...20.48  V (channel 13/14) depends on
= 0...2048  units configuration
open 50 ms = 0...25, 6 mV (channel 0...12) or 0...256 mV
= 0...10,24  V (channel 13/14) depends on
= 0...1024  units configuration
Jumper D
2468
X6
1357
In the special function ”measuring via channels 13 and 14”, a fixed conversion time of 55 ms
has been selected. With the possible thermocouples or resistance-type sensors, the following
maximum temperature values for setpoint definition result from the sensor voltage and the se-
lectable conversion times:
Conversion
time
Sensor type
50 ms
Jumper D open
°C °F
55 ms
Special function
°C °F
60 ms
Jumper D inserted
°C °F
80 ms
Pt 100 mode
°C °F
Type L
Type J
Type K
Type S
Type R
Pt 100
450 842
450 842
600 1112
1600 2912
1740 3100
 Ć Ć
675 1247
675 842
900 1652
1600 2912
1740 3100
 Ć Ć
700 1292
700 1292
1200 2192
1600 2912
1740 3100
 Ć Ć
ĆĆ
ĆĆ
ĆĆ
ĆĆ
ĆĆ
830 1526