Siemens SIMATIC SM 335 User Manual

Preface, Contents
Characteristics and Technical
Specifications of the SM 335
1
Connecting the Inputs and
Outputs of the SM 335
2
Data Exchange with the SM 335
3
Interval Counter Input
4
Special SM 335 Operating Modes
5
Detecting and Correcting Faults
6
List of Abbreviations
A
Index
08/2004 Edition
6ES7 335-7HG00-8BA1
SM 335 – High-Speed
Analog Input/Output Module for
the SIMATIC S7-300
Manual
SIMATIC

Siemens SIMATIC SM 335 Specifications

General

Number of Analog Inputs	4
Output Type	Analog
Resolution	12 bits
Current Range	±20mA
Operating Temperature	0°C to 60°C

Summary

Characteristics and Technical Specifications of the SM 335

Characteristics of the SM 335

Details the key features and capabilities of the SM 335 module.

Terminal connection diagram for the SM 335

Illustrates the physical connections for inputs, outputs, and power.

Block diagram of the SM 335

Shows the internal functional structure and isolation of the SM 335 module.

Setting the measuring range with the measuring range module

Explains how to configure input measurement ranges using the measuring range module.

Technical specifications for the SM 335

Provides detailed electrical and performance specifications for the module.

Operating modes of the SM 335

Describes the available operating modes like Free Cycle and Conditional Cycle.

Connecting the Inputs and Outputs of the SM 335

Basic information about connecting the SM 335

Covers general rules for wiring, power supply, and grounding for module connections.

Connecting the analog inputs

Details the procedure and recommendations for wiring analog inputs to the module.

Connecting the analog outputs

Explains how to connect external actuators to the module's analog outputs.

Connecting the interval counter input

Describes wiring requirements for the interval counter input.

Connecting the sensor power supply

Explains how to connect sensors to the module's integrated power supply.

Interference suppression filter for 24 V supply voltage

Details the importance and connection of an interference suppression filter for the power supply.

Data Exchange with the SM 335

Access via the I/O addresses

How to read and write data using I/O addresses.

Setting parameters via HW Config

Configuring module parameters using the STEP 7 HW Config tool.

Modifying SM 335 parameters with the help of system function 55

Dynamically changing parameters using system function 55.

Evaluating SM 335 diagnostics

Methods for accessing and interpreting diagnostic data from the module.

Interval Counter Input

Principle of an interval counter

Explains the fundamental concept of counting intervals and pulses.

Principle of measuring with the interval counter

Details how the module measures time intervals and calculates speed.

Wiring the interval counter input

Provides instructions for connecting sensors to the interval counter input.

Parameterizing the SM 335 interval counter input

Discusses parameter assignments and monitoring time for the interval counter.

Values of the interval counter

Explains where and how interval counter and duration values are stored.

Special SM 335 Operating Modes

Switching to the special operating modes

How to activate Comparator and Measuring Only modes using data record 1.

Comparator special mode

Detailed explanation of the Comparator mode and its two comparators.

Measuring Only special mode

Explains the Measuring Only mode for rapid analog input acquisition.

Detecting and Correcting Faults

Principle of diagnostics

Overview of how the SM 335 handles diagnostic events and interrupts.

Setting diagnostics with HW Config

Configuration of diagnostic messages for inputs and outputs in HW Config.

Evaluating diagnostic data in OB 82

Method for acquiring and processing diagnostic data using OB 82.

SM 335 error tree

A visual guide to interpreting SM 335 error codes and bit combinations.

Troubleshooting

Provides a table of errors and their corresponding corrective measures.

List of Abbreviations