Operating Modes Of Sm 335; Special Operating Modes - Siemens SIMATIC S7-300 Manual

Encoder selection data
Permitted continuous input voltage (destruction limit)
Permitted current at interval counter input (destruction limit)
Valid minimum pulse width at the counter input
•
•
Valid voltage range between terminals IZ and M
•
•
1.6

Operating modes of SM 335

Operating modes
SM 335 can operate in the following modes:
● Free cycle (corresponds with the setting in HW Config for SM 335: 0.5 ms cycle time)
● Conditional cycle (corresponds with the setting in HW Config for SM 335: 1 to 16 ms

Special operating modes

SM 335 can also be toggled to operate briefly in one of the following modes:
● Special "Comparator" mode
● Special "Measuring Only" mode
A description of those special modes is provided in chapter Special operating modes of SM
335 (Page 77). This chapter also describes how to switch to the special operating modes.
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01
Low
High
For Low pulse
For High pulse
cycle time)
Properties and technical data of SM 335
1.6 Operating modes of SM 335
± 30 V
5 mA
1 ms
1 ms
IZ
-30 V through + 5 V
(- 4.4 mA to 0.7 mA)
+18 V through + 30 V
(2.5 mA to 4.4 mA)
21