Siemens Simatic S7-300 User manual

SIMATIC S7-300 SM 335 - High-speed analog mixed module for SIMATIC S7-300
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Preface
Properties and technical data
of SM 335
1
Wiring the inputs and outputs
2
Data exchange with SM 335
3
Interval counter input
4
Special operating modes of
SM 335
5
Troubleshooting
6
List of abbreviations
A
SIMATIC
S7-300
SM 335 - High-speed analog mixed
module for SIMATIC S7-300
Manual
02/2009
A5E02409063-01

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A5E02409063-01
Ⓟ 03/2009
Copyright © Siemens AG 2009.
Technical data subject to change

SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 3
Preface
Purpose of the manual
This manual describes the functions of analog I/O module SM 335; AI4/AO4 x 14/12 Bit. We
shall use the short name SM 335 for this module.
The information in this manual helps you to:
● Operate an SM 335 in a SIMATIC S7 - 300 system
● View help on the operation, functions and technical data of SM 335
Basic knowledge required
This manual presumes general knowledge in the field of automation engineering.
Range of validity of this manual
The manual describes the components based on the data valid at the time of its release.
SIEMENS reserves the right to include current product information for new modules.
This manual is valid for the following module:
Module Order number As of version
SM 335 6ES7335- 7HG02-0AB0 01
Changes compared to the previous version
Changes / enhancements compared to the previous version described in this manual:
● New order number SM 335, 6ES7335-7HG02-0AB0.
Module 6ES7335-7HG02-0AB0 is compatible with module 6ES7335-7HG01-0AB0.
● The noise filter which had to be implemented for module version 6ES7335-7HG01-0AB0
is no longer required for reliable operation of module 6ES7335-7HG02-0AB0!

Preface
SM 335 - High-speed analog mixed module for SIMATIC S7-300
4 Manual, 02/2009, A5E02409063-01
Position in the overall documentation structure
The following documentation forms part of the S7-300 documentation package which is also
available on the Internet (http://support.automation.siemens.com/WW/view/en/), including
the corresponding contribution ID.
Name of the manual Description
Manual
CPU 31xC and CPU 31x, technical data
Contribution ID: 12996906
Control and display elements, communication,
memory concept, cycle and reaction times,
technical data.
Operating Instructions
S7-300, CPU 31xC and CPU 31x: Installation
Contribution ID: 13008499
Project design, installation, wiring, addressing,
commissioning, maintenance and test functions,
diagnostics and troubleshooting.
System Manual
PROFINET system description
Contribution ID: 19292127
Basic description of PROFINET:
Network components, data exchange and
communication, PROFINET IO, Component-
based Automation, application example of
PROFINET IO and Component-based
Automation.
Programming Manual
Migration from PROFIBUS DP to PROFINET IO
Contribution ID: 19289930
Guideline for migration from PROFIBUS DP to
PROFINET IO.
Manual
•CPU 31xC: Technological functions
Contribution ID: 12429336
•CD containing examples
Description of the technological functions:
positioning, counting, point-to-point coupling, loop
control.
The CD contains examples of the technological
functions.
Manual
S7-300 Automation System: Module Data
Contribution ID: 8859629
Descriptions of functions and technical
specifications of the signal modules, power
supplies, and interface modules.
Instructions List
CPU 31xC and CPU 31x
Contribution ID: 13206730
List of the CPU's instruction set and
corresponding execution times. Listing of
executable blocks.
Getting Started
Available anthology of Getting Started manuals:
•S7-300 Getting Started
Contribution ID: 15390497
•PROFINET Getting Started Collection
Contribution ID: 19290251
Using concrete examples, the Getting Started
documentation provides step-by-step instructions
focused on commissioning a fully functional
application.

Preface
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 5
Other manuals on S7-300 and ET 200M
Name of the manual Description
Reference Manual
•CPU Data: CPU 312 IFM - 318-2 DP
•Contribution ID: 8860591
Control and display elements, communication,
memory concept, cycle and reaction times,
technical data
Installation Manual
S7-300 Automation System: Installation: CPU
312 IFM – 318-2 DP
Contribution ID: 15390415
Project design, installation, wiring, addressing,
commissioning, maintenance and test functions,
diagnostics and troubleshooting.
Configuring Manual
ET 200M signal modules for process automation
Contribution ID: 7215812
Description of integration in process automation,
parameter configuration using SIMATIC PDM,
digital input modules, digital output modules.
Manual
Distributed I/O Device ET 200M
HART analog modules
Contribution ID: 22063748
Description of configuration and commissioning
of HART analog modules.
Manual
Distributed I/O Device ET 200M
Contribution ID: 1142798
Description of configuration, assembly and wiring.
YOU ARE CURRENTLY READING the Manual
SM 335 - High-speed analog mixed module for
SIMATIC S7-300
Contribution ID: 1398483
Describes how to implement an SM 335 module
in a SIMATIC S/-300.
Overview of the operating functions, function
descriptions and technical data of SM 335.
Guide
The manual contains various features supporting quick access to specific information:
● The manual starts with a table of contents, including an index of the tables contained in
the manual.
● Key terms are explained in the glossary.
● Navigate to the most important topics in our documents using the index.
Approvals
The SIMATIC ET 200M product range conforms to the following approvals:
● Underwriters Laboratories, Inc.: UL 508 registered (Industrial Control Equipment)
● Canadian Standards Association: CSA C22.2 Number 142,
(Process Control Equipment)
● Factory Mutual Research: Approval Standard Class Number 3611.
For more information about approvals and standards, refer to the "Standards and approvals"
section in the SIMATIC S7-300 Module Data Manual
(http://support.automation.siemens.com/WW/view/en/8859629).

Preface
SM 335 - High-speed analog mixed module for SIMATIC S7-300
6 Manual, 02/2009, A5E02409063-01
CE Label
The SIMATIC S7-300 product series satisfies the requirements and safety specifications of
the following EC directives:
● EC Directive 73/23/EEC "Low-voltage Directive"
● EC Directive 89/336/EEC "EMC Directive"
C-Tick-Mark
The SIMATIC S7-300 product series meets the requirements of the
AS/NZS 2064 standard (Australia and New Zealand).
Standards
The SIMATIC S7-300 product series meets the requirements and criteria to
IEC 61131-2.
Recycling and disposal
The S7-300 is low in contaminants and can therefore be recycled. For ecologically
compatible recycling and disposal of your old device, contact a certificated disposal service
for electronic waste.
Additional support
If you have any further questions about the use of products described in this manual, and do
not find the right answers there, contact your local Siemens representative:
Find your contact partner on the Internet (http://www.automation.siemens.com/partner/).
A guide to the technical documentation for the various SIMATIC products and systems is
available on the Internet (http://www.siemens.com/simatic-tech-doku-portal).
The online catalog and ordering systems are available on the Internet
(http://www.siemens.com/automation/mall).
Training Centers
Siemens offers appropriate courses to help you get started with the S7-300 and the
SIMATIC S7 automation system. Contact your regional training center, or the central training
center in D-90327 Nuremberg.
More information is available on the Internet (http://www.siemens.com/sitrain) .
Technical support
You can contact Technical Support for all A&D products by means of the Internet
(http://www.siemens.com/automation/support-request) Web form for the Support Request.
For additional information about Siemens Technical Support, refer to Internet
(http://www.siemens.com/automation/service&support).

Preface
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 7
Service & Support on the Internet
In addition to our documentation, we offer our complete knowledge base on the Internet.
On the Internet (http://www.siemens.com/automation/service).
There you will find
● Our Newsletter, which constantly provides you with the latest information about your
products.
● The right documents for your product on our Service & Support pages
● Worldwide forum in which users and experts exchange ideas
● Your local contact partner for Industry Automation in our contacts database.
● Information about on-site services, repairs, spare parts, and lots more.

Preface
SM 335 - High-speed analog mixed module for SIMATIC S7-300
8 Manual, 02/2009, A5E02409063-01

SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 9
Table of contents
Preface ...................................................................................................................................................... 3
1 Properties and technical data of SM 335 ................................................................................................. 11
1.1 Properties of SM 335 ...................................................................................................................11
1.2 Terminal diagram of SM 335........................................................................................................13
1.3 Block diagram of SM 335.............................................................................................................14
1.4 Setting up the measuring range using the measuring range module..........................................15
1.5 Technical data of SM 335 ............................................................................................................16
1.5.1 General technical data of SM 335................................................................................................16
1.5.2 Technical data of analog inputs ...................................................................................................17
1.5.3 Technical data of analog outputs.................................................................................................19
1.5.4 Technical data of the interval counter..........................................................................................20
1.6 Operating modes of SM 335........................................................................................................21
1.6.1 Free cycle mode ..........................................................................................................................22
1.6.2 Conditional cycle mode................................................................................................................24
2 Wiring the inputs and outputs .................................................................................................................. 25
2.1 Basics of the wiring of SM 335.....................................................................................................25
2.2 Wiring the analog inputs ..............................................................................................................26
2.3 Wiring the analog outputs ............................................................................................................28
2.4 Wiring the interval counter input ..................................................................................................29
2.5 Wiring the encoder supply ...........................................................................................................30
2.6 Adjusting the encoder supply.......................................................................................................31
3 Data exchange with SM 335.................................................................................................................... 33
3.1 Access via I/O addresses ............................................................................................................34
3.1.1 Input values..................................................................................................................................35
3.1.2 Output values...............................................................................................................................39
3.1.3 Representation of analog values of analog input channels.........................................................40
3.1.4 Representation of analog values for analog output channels......................................................42
3.2 Configuring and parameterizing...................................................................................................43
3.2.1 Default settings of SM 335...........................................................................................................44
3.2.2 SM 335 parameters which can be set up in HW Config ..............................................................45
3.3 Modifying SM 335 parameters in RUN ........................................................................................47
3.3.1 Static parameters of SM 335 .......................................................................................................48
3.3.2 SM 335 parameters for the free and conditional cycle modes ....................................................49
3.3.3 SM 335 parameters for the special mode "Comparator" .............................................................53
3.3.4 SM 335 parameters for the special mode "Measuring Only".......................................................57

Table of contents
SM 335 - High-speed analog mixed module for SIMATIC S7-300
10 Manual, 02/2009, A5E02409063-01
3.4 Evaluating the diagnostics data of SM 335................................................................................. 59
3.4.1 Hardware interrupt ...................................................................................................................... 60
3.4.2 Structure of the diagnostics data for SM 335.............................................................................. 61
3.4.3 Module diagnostics byte 0........................................................................................................... 62
3.4.4 Module diagnostics byte 1........................................................................................................... 63
3.4.5 Module diagnostics byte 2........................................................................................................... 64
3.4.6 Module diagnostics byte 3........................................................................................................... 64
3.4.7 Channel-specific diagnostics bytes (bytes 4 to 15)..................................................................... 65
4 Interval counter input ............................................................................................................................... 69
4.1 Principle of an interval counter.................................................................................................... 69
4.2 Principle of measurement with the interval counter .................................................................... 71
4.3 Wiring the interval counter input ................................................................................................. 72
4.4 Parameterizing the interval counter input of SM 335.................................................................. 74
4.5 Values of the interval counter...................................................................................................... 75
4.6 Example of a speed calculation using the interval counter......................................................... 76
5 Special operating modes of SM 335 ........................................................................................................ 77
5.1 Switchover to the special operating modes ................................................................................ 78
5.2 Special operating mode "Comparator"........................................................................................79
5.2.1 Principle of the special operating mode "Comparator" ............................................................... 80
5.2.2 SM 335 parameters for the special mode "Comparator" ............................................................ 85
5.3 Special "Measuring Only" mode.................................................................................................. 88
5.3.1 Changing over to the special operating mode "Measuring Only" ............................................... 89
6 Troubleshooting....................................................................................................................................... 91
6.1 Principle of diagnostics ............................................................................................................... 91
6.2 Setting up diagnostics in HW Config........................................................................................... 92
6.3 Evaluating diagnostics data in OB 82 ......................................................................................... 94
6.4 Error tree of SM 335.................................................................................................................... 95
6.5 Troubleshooting .......................................................................................................................... 96
A List of abbreviations................................................................................................................................. 99
A.1 List of abbreviations .................................................................................................................... 99
Glossary ................................................................................................................................................ 101
Index...................................................................................................................................................... 107

SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 11
Properties and technical data of SM 335 1
1.1 Properties of SM 335
SM 355 is an I/O module for SIMATIC S7-300 and features the same general technical data
as all of the other signal modules of SIMATIC S7-300. SM 335; AI4/AO4 14/12 Bit features
the following properties.
Order number
6ES7335-7HG02-0AB0
Analog inputs
● 4 analog inputs, electrically isolated
● Integrated encoder supply 10 V / 25 mA
● Resolution of the measured value:
– Bipolar: 13 bits + sign
– Unipolar: 14 bits
● Selectable measured value:
– 2 voltage inputs
– 2 inputs, optional as current or voltage inputs
Analog outputs
● 4 analog outputs, electrically isolated
● Any range selection per analog output
Loads can only be connected to the analog outputs by means of 2-wire circuit!
● Resolution of the analog value:
– Bipolar: 11 bits + sign
– Unipolar: 12 bits

Properties and technical data of SM 335
1.1 Properties of SM 335
SM 335 - High-speed analog mixed module for SIMATIC S7-300
12 Manual, 02/2009, A5E02409063-01
Operating modes
● 2 default operating mode data:
– Free cycle
– Conditional cycle
● 2 special operating modes:
– Comparator
– Measuring only
Interrupts / diagnostics
● Parameterizable diagnostics
● Parameterizable diagnostics interrupt
● Parameterizable cycle end interrupt (triggers a hardware interrupt on the CPU)

Properties and technical data of SM 335
1.2 Terminal diagram of SM 335
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 13
1.2 Terminal diagram of SM 335
For information about the wiring of the inputs/outputs of SM 335, refer to chapter Wiring the
inputs and outputs (Page 25) and to the Operating Instructions SIMATIC S7-300, Installation
(http://support.automation.siemens.com/WW/view/en/13008499).
The "X" imprint on the module identifies the version, in this case version 1. The version
number is used to distinguish between products with the same order number. The version is
incremented after upward compatible function extensions or bug fixes.
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Properties and technical data of SM 335
1.3 Block diagram of SM 335
SM 335 - High-speed analog mixed module for SIMATIC S7-300
14 Manual, 02/2009, A5E02409063-01
1.3 Block diagram of SM 335
Electrical isolation
SM 335 contains a variety of different analog elements. The analog outputs are electrically
isolated to the backplane bus of SIMATIC S7-300. All outputs are connected to the common
potential MANA. The encoder supply output and the analog outputs are connected to common
potential MANA.
The analog outputs are electrically isolated to each other and to the backplane bus of
SIMATIC S7-300.
The input for internal counter IZ is electrically isolated to all other analog components and to
the backplane bus of SIMATIC S7-300.
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Properties and technical data of SM 335
1.4 Setting up the measuring range using the measuring range module
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 15
1.4 Setting up the measuring range using the measuring range module
Measuring range module
A measuring range module is installed on the left-hand side of the analog I/O module. Use
this measuring module to define the type of measurement at the analog inputs, i.e. voltage or
current measurement.
Settings
The measuring range module features the optional "A", "C" and "D" settings. Setting "D" is
the factory default.
The following table shows the assignment of the measuring range settings for the module's
analog input circuitry.
Set up the measuring range in HW Config. You can choose between different current or
voltage ranges; refer to chapter Configuring and parameterizing (Page 43). HW Config also
displays the required setting for the measuring range module.
Table 1- 1 Settings of the measuring range module and default settings of the measuring range of
SM 335
Settings of the measuring range
module
Wiring the analog inputs Measuring range (default)
Input 0: Voltage ± 10 V
Input 1: Voltage ± 10 V
Input 2: Current ± 10 V
A
Input 3: Current 4 to 20 mA
B Not used -
Input 0: Voltage ± 10 V
Input 1: Voltage ± 10 V
Input 2: Current 4 to 20 mA
C
Input 3: Current 4 to 20 mA
Input 0: Voltage ± 10 V
Input 1: Voltage ± 10 V
Input 2: Current ± 10 V
D
Input 3: Current ± 10 V

Properties and technical data of SM 335
1.5 Technical data of SM 335
SM 335 - High-speed analog mixed module for SIMATIC S7-300
16 Manual, 02/2009, A5E02409063-01
1.5 Technical data of SM 335
1.5.1 General technical data of SM 335
Table 1- 2 General technical data
Dimensions and weights
Dimensions W x H x D (mm) 40 x 125 x 120
Weight Approx. 300 g
Module-specific data
Number of inputs 4
Number of outputs 4
Cable length, shielded 200 m
For wire-break check in the range from 0 to 10 V 30 m
Voltages, currents, potentials
Rated load voltage 24 VDC
•Reverse polarity protection Yes
Electrical isolation Yes
Permissible potential difference
•Between inputs (VCM)
•Between the input (M connector) and central
grounding point
•Isolation test voltage
3 V / 1.5 V / (10 V ranges)
75 VDC/60 VAC
500 VDC
Current consumption
•From SIMATIC S-7 300 backplane bus
•From L+
•Power loss
75 mA max.
150 mA max.
Max. 3,6 W
Status, interrupts, diagnostics
Interrupts
•Limit interrupt
•End of cycle interrupt
•Diagnostics interrupt
No
Yes, parameterizable
Yes, parameterizable
Diagnostics functions
•Fault indication on the module for group
errors
•Reading diagnostics information
Yes, parameterizable
Yes, red LED
Yes
Other
UL/CSA/FM Yes

Properties and technical data of SM 335
1.5 Technical data of SM 335
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 17
1.5.2 Technical data of analog inputs
Table 1- 3 Technical data of analog inputs
Noise suppression, error limits for inputs
Interference voltage suppression for f = n x, (f1 =
interference frequency)
•Common-mode noise (Vpp < 3 V)
•Series mode interference (peak value of
interference < rated input range)
> 65 dB
0 dB
Crosstalk between inputs
•at 50 Hz
•at 60 Hz
-65 dB
-65 dB
Operational limit for voltage measurements
(across temperature range, relative to input
range)
± 0,15 %
(at 14 bits resolution)
Operational limit for current measurements
(across temperature range, relative to input
range)
0.25 %
Basic error limit (operational error limit at 25° C,
relative to input range)
± 0.1% (at 14 bits resolution)
Temperature error (relative to input range) ± 0.13%
Linearity error (relative to input range) ± 0.015 %
Repetition accuracy (in transient state at 25°C,
relative to input range)
± 0.05%
Encoder selection data
± 1 V
± 10 V
± 2.5 V
0 to 2 V
0 to 10 V
10 MΩ
10 MΩ
10 MΩ
10 MΩ
10 MΩ
Input ranges (rated values) / input impedance
•Voltage
•Current (2 channels max.) ± 10 mA
0 to 20 mA
4 to 20 mA
100 Ω
100 Ω
100 Ω
Permissible voltage at voltage input (destruction
limit)
± 30 V
Maximum current at current input (destruction
limit)
25 mA
Wiring of the signal transducers
•For voltage measurement
•For current measurement
– As 2-wire transducer
– As 4-wire transducer
•For resistance measurement
Supported
Not possible
Supported
Not possible

Properties and technical data of SM 335
1.5 Technical data of SM 335
SM 335 - High-speed analog mixed module for SIMATIC S7-300
18 Manual, 02/2009, A5E02409063-01
Generation of analog input values
Measuring principle Successive approximation
Conversion time in µs (per channel)
•Basic conversion time for 4 channels in ms
Max. 200
Max. 1
Resolution
•Bipolar
•Unipolar
13 bits + sign
14 bits
Data of the encoder supply output
Rated voltage 10 V
Max. output current 25 mA
Short-circuit-proof Yes
Operational limit (across temperature range) 0,2 %
Temperature error 0.002 %/K
Basic error of rated voltage 0.1%

Properties and technical data of SM 335
1.5 Technical data of SM 335
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01 19
1.5.3 Technical data of analog outputs
Table 1- 4 Technical data of analog outputs
Generation of analog output values
Resolution (including overrange)
•± 10 V
•From 0 to 10 V
11 bits + sign
12 bits + sign
Output delay in μs Max. 800
Settling time
•For resistive load
•For capacitive load
•For inductive load
< 0.1 ms
≤ 3.3 ms
< 0.5 ms
Injection of substitution values Yes
Noise suppression, error limits of outputs
Crosstalk between the outputs - 40 dB
Operational error limits (across the temperature range, in
relation to output range)
0.5 %
Basic error limit (operational error limit at 25°, relative to output
range)
0.2 %
Temperature error 0.02 %/K
Linearity error (in relation to output range) ± 0.05 %
Repetition accuracy (in transient state at 25°, relative to output
range)
± 0.05 %
Output ripple (relative to output range) ± 0,05 %
Actuator selection data
Output ranges (rated values) ± 10 V
From 0 to 10V
Load resistance
•For voltage outputs
•For capacitive load
•For inductive load
Min. 3 kΩ
Max. 1 μF
Max. 1 mH
Voltage output
•Short-circuit protection
•Short-circuit current
Yes
8 mA max.
Connection of actuators
•For voltage output
– 2-wire connection
– 4-wire connection (measuring line)
Supported
Not possible

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