Analog Modules
4-80
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Suppression of interference, Limits of Error
Noise suppression for f = n (f1 ± 1%),
(f1 = interference frequency); n= 1, 2, ...
• Common-mode noise
(U
cm
< 50 V)
> 100 dB
• Series-mode
interference (peak
value of interference
< rated value of input
range)
> 90 dB
Crosstalk between the inputs > 100 dB
Operational limit (over entire
temperature range, referred
to input range)
U
CM
= 0 / U
CM
= ±50 V
• Voltage input
±0.1% / ± 0.7%
• Current input
±0.3% / ± 0.9%
Basic error (operational limit at 25° C referred to input
range)
• Voltage input
±0.05%
• Current input
±0.05%
Temperature error (with
reference to the input range)
±0.005%/K
Linearity error (with reference
to the input range)
±0.03%
Repeat accuracy (in the
steady state at 25°C, referred
to the input range)
±0.025%
Status, Interrupts, Diagnostics
Interrupts
• Hardware interrupt when
limit has been exceeded
Programmable
channels 0 and 2
• Diagnostic interrupt Programmable
Diagnostic functions
• Group error display
• Diagnostics information
read-out
Programmable
Red LED (SF)
Possible
Data for Selecting a Sensor
Input range (rated values)/Input resistance
• Voltage ± 5 V
1 to 5 V
± 10 V
/ 2MΩ
/ 2MΩ
/ 2MΩ
• Current 0 to 20 mA;
± 20 mA
4 to 20 mA:
/ 250 Ω
/ 250 Ω
/ 250 Ω
Maximum input voltage for
voltage input (destruction
limit)
max. 50 V continuous
Maximum input current for
current input (destruction
limit)
max. 32 mA
Connection of the sensor
• For measuring voltage Possible
• For measuring current
As two-wire transmitter Possible with separate
supply for the transmitter
As four-wire transmitter Possible
• Load of the two-wire
transmitter
max. 820 Ω
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