Technical Data Of The Interval Counter - Siemens SIMATIC S7-300 Manual

Properties and technical data of SM 335
1.5 Technical data of SM 335
1.5.4

Technical data of the interval counter

Table 1- 5
Specific data of the interval counter
Number of inputs
Cable length, shielded
Voltages, currents, potentials
Rated load voltage L+
•
Electrical isolation
Permissible potential difference
•
•
Generation of analog values for the interval counter
Measuring principle
Time difference resolution
Max. frequency
•
•
Noise suppression, input error limits
Noise suppression at
F = n * (f1 ± 1%), (f1 = interference frequency)
•
•
(Peak value of the interference < rated value of the input
range)
Operating error limit
(across temperature range)
Intrinsic error limit
(operational limit at 25°C)
Temperature error (0 to 60°C)
Linearity error
20
Technical data of the interval counter
Reverse polarity protection
Interval counter input (M
IZ
inputs
Between the input (M terminal) and central grounding
IZ
point
Parameterizable
Noise suppression at interference frequency f1 in dB
Common-mode interference (V
Series-mode interference
terminal) to the four analog
< 3 V)
SS
SM 335 - High-speed analog mixed module for SIMATIC S7-300
1
200 m
24 VDC
Yes
Yes
75 VDC/60 VAC
75 VDC/60 VAC
Detection of the rising edge and
count between two edges
0.5 μs
400 Hz
No
0
> 80 dB
0 dB
Max. 1 % at 400 Hz
0,005 %
± 0.003 %/K
0
Manual, 02/2009, A5E02409063-01