Operation
2–33
IP244
C79000–B8576–C859–02
3.4.2 Setting the Conversion Time Per Channel
Thermocouples, resistance-type sensors and other sensors for general applications can be
connected to the analog inputs.
Setting the conversion time of the analog-to-digital converter fixes the resolution of the analog
input signals in encoding units.
The conversion time per channel is selected with jumper D on the plug connectors X6/X7.
With Pt 100s, jumper D is not effective. In this case, the conversion time is fixed to 80 ms
(0 to 1024 mV
= 4096 units).
12
1
1
12
Jumper D Conversion time and resolution
(X6/X7, 2-2)
Inserted 60 ms = 0 to 51. 2 mV (Channel 0 to 12) or 0 to 512 mV
= 0 to 20.48 V (Channel 13/14) depending on
= 0 to 2048 units configuration
Open 50 ms = 0 to 25. 6 mV (Channel 0 to 12) or 0 to 256 mV
= 0 to 10.24 V (Channel 13/14) depending on
= 0 to 1024 units configuration
X7
Jumper D
X6
With the special function ”measured value acquisition on channel 13 and 14” the conversion
time is fixed at 55 ms. The permissible thermocouples and resistance-type sensors allow the
following maximum setpoint temperatures for the selectable conversion times from the sensor
voltage:
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 operation
°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
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