Siemens SIMATIC SM 335 - Page 22

Characteristics and Technical Specifications of the SM 335
1-12
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Table 1-5 Technical specifications for the interval counter
Sensor selection data
Permissible input voltage (destruction limit) " 30 V
Permissible input current for interval input (destruction
limit)
5 mA
Minimum permissible pulse widths at the counter input
• “Low”
• “High”
1 ms
1 ms
Permissible voltage range between IZ and M
IZ
termi-
nals
• For “Low” pulse
• For “High” pulse
– 30 V to + 5 V
(– 4.4 mA to 0.7 mA)
+ 18 V to + 30 V
(2.5 mA to 4.4 mA)