Siemens SIMATIC S5 Manual page 11

Technical Description
Additional error caused by voltage divider
(e.g. channels 13 and 14)
Temperature influence
(range 0 to 50 mV)
Additional error caused by temperature influence
in channels with voltage dividers
(temperature coefficient of the voltage divider)
Error message when tolerance exceeded,
overflow or line break
Line break detection
Measuring principle
Measured value resolution (internal)
Encoding time per channel
Integration time
for 50 Hz power supply frequency
–
for 60 Hz power supply frequency
–
Max. permissible length of lines
for thermocouples (50 mV)
for Pt 100 and linear sensors (> 500 mV)
Comparator channel
Rated input voltage
Resolution
Max. permissible potential difference (U
Time constant
Error
Comparator output (K)
2–8
1
(2 units / 10 Kelvin)
0.5
(1 unit / 10 Kelvin)
yes
yes for sensors with
Ri < 1 kohm
integrating
11 bits + sign (value plus
sign);
2048 units;
for Pt 100 0 to 4096 units
typically 50 ms
40 ms for 0
60 ms for 2048 units
80 ms for 4096 units
20 ms
16
50 m, shielded
200 m, shielded
(the recommended maximum
line length; can be exceeded
if suitable measures are
taken to prevent parasitic
voltages)
(fixed wiring on channel 13)
10.24 V
1024 units
(1 unit = 10 mV)
) < 1 V
CM
typically 0.2 ms
< 0.5 %
digital ouptut 18 (technical
data as for digital outputs
1 to 17)
0.25 %
o
/ / 10 Kelvin
oo
o
/ / 10 Kelvin
oo
2
/ ms
3
pp
IP244
C79000–B8576–C859–02