simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Analog modules
SM 331 analog input modules
4
■ Technical specifications (continued)
Sensor
Sensing element connection
- for current measurement,
as 2-wire measuring transducer
- for current measurement,
as 4-wire measuring transducer
- for resistance measurement,
with 2-wire connection
- for resistance measurement,
with 3-wire connection
- for resistance measurement,
with 4-wire connection
Error/accuracies
Operational limit in the entire
temperature range
- relative to the input range,
voltage
- relative to the input range,
current
- relative to the input range,
resistance
- relative to the input range,
resistance thermometer
Basic error limit
(operational limit at 25 °C)
- relative to the input range,
voltage
- relative to the input range,
current
- relative to the input range,
resistance
- relative to the input range,
resistance thermometer
Status information/
interrupts/ diagnostics
Interrupts
6ES7 331-7PF00-0AB0 6ES7 331-7PF10-0AB0 6ES7 331-7NF00-0AB0 6ES7 331-7NF10-0AB0
Yes; without resistance
correction
Yes
Yes
+/- 0.1 %
+/- 1 K
+/- 0.05 %
+/- 0.5 K
- Diagnostic interrupt Yes; parameterizable
per group
Yes; with external
measuring transducer;
possible with separate
power supply for the
measuring transducer
Yes
+/- 1 K +/- 0.1 %; +/-0.7% +/- 0.1 %
+/- 0.3 %; +/-0.9% +/- 0.1 %
+/- 0.5 K +/- 0.05 % +/- 0.05 %
Yes; parameterizable
per group
+/- 0.05 % +/- 0.05 %
Yes; parameterizable
- Limit value interrupt Yes; parameterizable Yes; parameterizable Yes; parameterizable
channels 0 and 2
Diagnostics
- Diagnostic information can be Yes Yes Yes Yes
read out
Insulation
• Insulation tested with 500 V DC 500 V DC 500 V DC 500 V AC
Potentials/ electrical isolation
Analog output functions
- between the channels Yes Yes Yes
- between the channels,
2 2 2
in groups of
- between the channels and Yes Yes Yes Yes
the backplane bus
Dimensions and weight
• Weight, approx. 272 g 272 g 272 g 272 g
• Width 40 mm 40 mm 40 mm 40 mm
• Height 125 mm 125 mm 125 mm 125 mm
•Depth 120 mm 120 mm 120 mm 120 mm
Yes; with external measuring
transducer, power
supply; possible with
separate power supply
for the measuring transducer
Yes
Yes; parameterizable
Yes; parameterizable all
channels (end-of-cycle
interrupt also supported
throughout modules)
4/64 Siemens ST 70 · 2005