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

OChapter
Index-2 SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
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precautions are not taken.
!Warning
Indicates that death, severe personal injury or substantial property damage can result if proper
precautions are not taken.
!Caution
Indicates that minor personal injury or property damage can result if proper precautions are not taken.
Caution
indicates that property damage can result if proper precautions are not taken.
Notice
contains important information about the product, its operation or a part of the document, to which special
attention is drawn.
Qualified Personnel
A device/system may only be commissioned or operated by qualified personnel. Qualified personnel as
referred to in the safety guidelines in this document are persons authorized to start up, ground and tag
circuits, equipment and systems in accordance with established safety practice.
Proper Usage
Please observe the following:
!Warning
The equipment/system or the system components may only be used for the applications described in the
catalog or the technical description, and only in combination with the equipment, components, and
devices of other manufacturers as far as this is recommended or permitted by Siemens.
The product will function correctly and safely only if it is transported, stored, set up, and installed as
intended, and operated and maintained with care.
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SIMATIC, SIMATIC HMIand SIMATIC NETare registered trademarks of SIEMENS AG.
Other designations used in this document may be registered trademarks; the owner’s rights may be viola-
ted if they are used by third parties for their own purposes.
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This manual contains notices intended to ensure personal safety, as well as to protect the products and
connected equipment against damage. These notices are highlighted by a warning triangle and are graded
according to severity by the following texts:
We have checked the contents of this manual for agreement with the
hardware and software described. Since deviations cannot be
precluded entirely, we cannot guarantee full agreement. However,
the data in this manual are reviewed regularly and any necessary
corrections included in subsequent editions. Suggestions for
improvementare welcomed.
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The reproduction, transmission or use of this document or its
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Automation & Drives
Motion Control Systems
P.O. Box 3180, D-91050 Erlangen Siemens AG, 2004.
Technical data subject to change.
Siemens Aktiengesellschaft

iii
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Preface
Important
In order to obtain SIMATIC interference immunity, the SM 335 module must
always be operated with an interference suppression filter (see Section 2.6).
Content of this manual
This manual describes the function of the SM 335 analog input/output module;
AI4/AO4 x 14/12 bits. In the following, this module will simply be called SM 335.
Aim of this manual
The information contained in this manual will enable you to:
•Use a SM 335 in a SIMATIC S7-300.
•See operator inputs, function descriptions and technical specifications in con-
nection with the SM 335.
Scope of this manual
The manual is valid for the following modules:
Module Order Number From Revision Level
SM 335 6ES7 335-7HG01-0AB0 02
This manual contains the descriptions of these modules that are valid at the time
the manual is released. For new modules and new versions of modules, we re-
serve the right to add to the manual a product information containing the current
information about this module. Section 1.2 describes how to determine the revision
level of a module.

PrefacePreface
iv SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Scope of the documentation package
You can order the documentation for the SM 335 separately from the module.
The order number for the manual appears in the table below:
Documentation Order Number
•SM 335 - High-Speed Analog Input/Output
Module for the SIMATIC S7-300 6ES7 335-7HG00-8BA1
Other references
More information about using and installing SIMATIC S7-300 analog modules can
be found in:
•SIMATIC Programmable Controller, S7-300 Module Data Reference Manual
•SIMATIC S7-300, Hardware and Installation Manual
The installation guidelines described in this document also relate to the SM 335.
Required basic knowledge
This manual assumes general knowledge of automation engineering.
Knowledge of the SIMATIC S7 programmable controller and the STEP 7 Engineer-
ing System is also required.
Approbations
The S7-300 programmable controller has obtained the following approvals:
•Underwriters Laboratories, Inc.: UL 508 registered (Industrial Control Equip-
ment)
•Canadian Standards Association: CSA C22.2 number 142, (Process Con-
trol Equipment)
•Factory Mutual Research: Approval Standard Class Number 3611.
CE Approval
The S7-300 programmable controller meets the requirements and safety-related
requirements of the following EC directives:
•EC Directive 73/23/EEC “Low-Voltage Directive”
•EC Directive 89/336/EEC “EMC Directive”

PrefacePreface
v
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
C-Tick-Mark
The S7-300 programmable controller meets the requirements of the AS/NZS 2064
standard (Australia and New Zealand).
Standards
The S7-300 programmable controller meets the requirements and criteria of the
IEC 61131-2 standard (Programmable Controllers, Part 2: Equipment Require-
ments and Tests).
How the manual fits in
Manual
•CPU 31xC and CPU 31x, Technical Specifi-
cations
Operation and display elements, com-
munication, memory concept, cycle and
response times, technical specifications.
Reference Manual
•CPU data: CPU 312 IFM - 318-2 DP
Operation and display elements, com-
munication, memory concept, cycle and
response times, technical specifications.
Manual
•S7-300, CPU 31xC and CPU 31x: Hard-
ware and Installation
Configuration, installation, wiring, ad-
dressing, commissioning, maintenance,
diagnostics, and interference suppres-
sion.
Installation Manual
•S7-300 Programmable Controller: Hardware
and Installation: CPU 312 IFM - 318-2 DP
Configuration, installation, wiring, ad-
dressing, commissioning, maintenance,
diagnostics, and interference suppres-
sion.
System Manual
•PROFINET system description
Basic information about PROFINET:
Network components, data exchange
and communication, PROFINET IO,
component based automation, applica-
tion example PROFINET IO and compo-
nent based automation.
Programming Manual
•From PROFIBUS DP to PROFINET IO
Guide to migration from PROFIBUS DP
to PROFINET IO.
Manual
•CPU 31xC: Technological Functions
•Examples
Description of individual technological
functions: Positioning, counting,
point-to-point coupling, control.
The CD contains examples for the tech-
nological functions.
Reference Manual
•S7-300 Programmable Controller:Module
Data
Descriptions of functions and technical
specifications of signal modules, power
supply modules and interface modules.
Instruction List
•CPU 312 IFM - 318-2 DP
•CPU 31xC and CPU 31x
The instruction set lists of the CPUs and
their execution times;
A list of executable blocks.

PrefacePreface
vi SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Getting Started
The Getting Started documents below are avai-
lable as an anthology:
•CPU 31x: Commissioning
•CPU 31xC: Commissioning
•CPU 31xC: Positioning with analog output
•CPU 314C: Positioning with digital output
•CPU 31xC: Counting
•CPU 31xC: Rules
•CPU 31xC: Point-to-point connection
•CPU 31x-2 PN/DP: Commissioning of a
PROFINET IO subnet
Getting Started documents use a con-
crete example to guide you through the
individual commissioning steps until you
have a functioning application.
Manual
You are reading manual
•SM 335 - High-Speed Analog Input/Output
Module for the SIMATIC S7-300
Description of how you use the SM 335
module in a SIMATIC S7-300.
Overview of operations, descriptions of
functions and technical specifications of
the SM 335.
Reference Manual
System software for the S7-300/400 system
and standard functions
Description of system functions (SFC),
system function blocks (SFB) and orga-
nization blocks (OB).
This manual is part of the STEP 7 docu-
mentation package.
The description can also be found in the
STEP 7 online help.
Manual
SIMATIC NET: Twisted Pair and Fiber Op-
tic Networks
Description of industrial Ethernet net-
works, network configuration, compo-
nents, installation guidelines for net-
worked automation systems in buildings,
etc.
Manual
Component based Automation:
Configuring systems with SIMATIC iMap
Description of SIMATIC iMAP configura-
tion software.
Manual
Programming with STEP 7 V5.3
Programming with STEP 7.
Manual
Communication with SIMATIC
Fundamentals, services, networks, com-
munication functions, connection of
PG/OP, configuration in STEP 7.
Additional Support
Please contact your local Siemens representative if you have any queries about
the product described in this manual, which are not answered here.
http://www.ad.siemens.com/automation/partner

PrefacePreface
vii
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Training center
We offer a range of relevant courses to help you to get started with the
SIMATIC S7 programmable controller. Please contact your local training center or
the central training center in Nuremberg, D 90327 Germany.
Phone: [phone]
Internet: http://www.sitrain.com
A&D Technical Support
Worldwide, available 24 hours a day:
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to 5:00 PM
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Technical Support and
Authorization
Local time: Mon.-Fri. 8:00 AM
to 5:00 PM
Phone: [phone]
Fax: [phone]
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sea.siemens.com
GMT: –5:00
Asia/Australia (Beijing)
Technical Support and
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Local time: Mon.-Fri. 8:30:00
to 5:00 PM
Phone: [phone]
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siemens.com
GMT: +8:00
The languages of the technical support and authorization hotlines are generally German and English.

PrefacePreface
viii SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Service & Support on the Internet
In addition to our documentation, our whole range of expertise can be accessed
online at:
http://www.siemens.com/automation/service&support
Where you will find:
•The Newsletter, which constantly provides you with up-to-date information
about your products.
•The documents you need via our Search function in Service & Support.
•A forum, where users and experts from all over the world exchange their experi-
ences.
•Your local representative for Automation & Drives, via our database of repre-
sentatives.
•Information about field service, repairs and spare parts. Much more can be
found under “Services”.
Queries
If you have any queries about the S7-300 programmable controller, please contact
your local Siemens representative.
In case you have any questions or suggestions concerning this manual, please fill
in the correction sheet and return it to us. The correction sheet can be found at the
end of the manual.

ix
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Contents
1 Characteristics and Technical Specifications of the SM 335 1-1. . . . . . . . . . . . . . . .
1.1 Characteristics features of the SM 335 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Terminal connection diagram for the SM 335 1-3. . . . . . . . . . . . . . . . . . . . . . . .
1.3 Block diagram of the SM 335 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Setting the measuring range with the measuring range module 1-6. . . . . . . .
1.5 Technical specifications for the SM 335 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.1 General technical specifications 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.2 Technical specifications for the analog inputs 1-8. . . . . . . . . . . . . . . . . . . . . . . .
1.5.3 Technical specifications for the analog outputs 1-10. . . . . . . . . . . . . . . . . . . . . .
1.5.4 Technical specifications for the interval counter 1-11. . . . . . . . . . . . . . . . . . . . . .
1.6 SM 335 operating modes 1-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.1 Free Cycle mode 1-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.2 Conditional Cycle mode 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Connecting the Inputs and Outputs of the SM 335 2-1. . . . . . . . . . . . . . . . . . . . . . . .
2.1 Basic information about connecting the SM 335 2-2. . . . . . . . . . . . . . . . . . . . .
2.2 Connecting the analog inputs 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Connecting the analog outputs 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Connecting the interval counter input 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Connecting the sensor power supply 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.1 Correcting the sensor power supply 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 Interference suppression filter for 24 V supply voltage 2-10. . . . . . . . . . . . . . . .
3 Data Exchange with the SM 335 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Access via the I/O addresses 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 Output values 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2 Output values 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3 Analog value representation for analog input channels 3-8. . . . . . . . . . . . . . . .
3.1.4 Analog value representation for analog output channels 3-10. . . . . . . . . . . . . .
3.2 Setting parameters via HW Config 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 SM 335 default settings 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2 SM 335 parameters assignable with HW Config 3-13. . . . . . . . . . . . . . . . . . . . .
3.3 Modifying SM 335 parameters with the help of system function 55 3-16. . . . .
3.3.1 SM 335 static parameters 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.2 SM 335 parameters in the Free Cycle and Conditional Cycle Modes 3-18. . . .
3.3.3 SM 335 parameter for “Comparator” mode 3-23. . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.4 SM 335 parameters for “Measuring Only” special mode 3-27. . . . . . . . . . . . . . .

ContentsContents
xSM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
3.4 Evaluating SM 335 diagnostics 3-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.1 Hardware interrupt 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.2 Format of diagnostic data for the SM 335 3-32. . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.3 Module diagnostic byte 1 (byte 0) 3-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.4 Module diagnostic byte 2 (byte 1) 3-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.5 Module diagnostic byte 3 (byte 2) 3-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.6 Module diagnostic byte 4 (byte 3) 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.7 Channel-specific diagnostic bytes (bytes 4-15) 3-37. . . . . . . . . . . . . . . . . . . . . .
4 Interval Counter Input 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Principle of an interval counter 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Principles of measuring with the interval counter 4-3. . . . . . . . . . . . . . . . . . . . .
4.3 Wiring the interval counter input 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Initializing the SM 335’s interval counter input 4-7. . . . . . . . . . . . . . . . . . . . . . .
4.5 Interval counter values 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 Example for determining the speed by means of the interval counter 4-9. . .
5 Special SM 335 Operating Modes 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Switching to the special operating modes 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 “Comparator” mode 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.1 How comparator mode works 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.2 SM 335 parameters for Comparator mode 5-10. . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 “Measuring Only” mode 5-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1 Switching to “Measuring Only” mode 5-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Detecting and Correcting Faults 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Principle of diagnostics 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Configuring diagnostics with HW Config 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Evaluating diagnostic data in OB 82 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4 SM 335 error tree 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.5 Troubleshooting 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A List of Abbreviations A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index Index-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Characteristics and Technical
Specifications of the SM 335
SIMATIC S7-300
The SM 335 is an input/output module (signal module) for the SIMATIC S7-300.
The SM 335 has the same general technical specifications as all signal modules of
the SIMATIC S7-300.
Order number
Order the SM 335 under the following order number:
6ES7 335-7HG01-0AB0
In this chapter
We deal with the following topics in this chapter:
Topic Section
Characteristics of the SM 335 1.1
Terminal connection diagram for the SM 335 1.2
Block diagram of the SM 335 1.3
Setting the measuring range with the measuring range module 1.4
Technical specifications for the SM 335 1.5
Operating modes of the SM 335 1.6
1

Characteristics and Technical Specifications of the SM 335
1-2 SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
1.1 Characteristics features of the SM 335
Characteristic features
The SM 335; AI4/AO4 14/12 bit has the following characteristic features:
Analog inputs:
•Four isolated analog inputs
•Integrated 10 V/25 mA sensor power supply
•Measured-value resolution:
– Bipolar: 13 bits + sign
– Unipolar: 14 bits
•Selectable measured value:
– Two voltage inputs
– Two inputs, which can be used as either current or voltage inputs
Analog outputs:
•Four isolated analog outputs
•Selectable range for each analog output
For the analog outputs, you can connect loads over a two-wire connection only!
•Analog value resolution:
– Bipolar: 11 bits + sign
– Unipolar: 12 bits
Operating modes:
•2 standard operating modes:
– Free cycle
– Conditional cycle
•2 special operating modes:
– Comparator
– Measuring Only
Interrupts/diagnostics:
•Programmable diagnostics
•Programmable diagnostic interrupt
•Programmable end-of-cycle interrupt (generates a hardware interrupt on the
CPU)

Characteristics and Technical Specifications of the SM 335
1-3
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
1.2 Terminal connection diagram for the SM 335
Terminal connection diagram
Figure 1-1 shows the terminal connections for the SM 335 analog input/output
module.
Terminal
Connection
Diagram
Fault LEDs – red
Analog inputs:
Voltage/
current measurement
L+
M0+
M0–
M1+
M1–
M2+
M2–
M3+
M3–
M
24 V
CH0
CH1
CH2
M
Analog outputs:
Voltage output
L+
QV0
QV1
QV3
QV2
MANA
M
24 V
CH0
CH1
CH2
CH3
M
CH3
Interval counter IZ
IZ
MIZ
QVRef
MANA 10 V
SF
Sensor
power
supply
Revision level
Reserved
Fig. 1-1 Terminal connection diagram of the SM 335
Wiring
See Chapter 2 and to the SIMATIC S7-300, Hardware and Installation Manual for
information about how to wire inputs and outputs on the SM 335.

Characteristics and Technical Specifications of the SM 335
1-4 SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Revision Level
Products with the same number can be distinguished by the revision level.
The revision level is incremented by upwardly-compatible function expansions or
fault corrections.
The revision level of the module is identified by “X” (see Figure 1-1); in this case
the revision level is 1.

Characteristics and Technical Specifications of the SM 335
1-5
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
1.3 Block diagram of the SM 335
Block diagram
Figure 1-2 shows the block diagram of the SM 335. You will find detailed technical
specifications for the SM 335 on the following pages.
Logic
A
D
CH0
CH1
CH2
CH3
CH0
CH1
CH2
CH3
10 V
Open-wire
test circuit
A
D
24 V
Internal power supply
Galvanic isolation
SIMATIC S7-300
backplane bus
IZ
Analog outputs
Sensor power
supply
Analog inputs
Interval Counter Input
Fig. 1-2 Block Diagram of the SM 335
Galvanic isolation
As you can see from Figure 1-2, the SM 335 contains different analog parts.
The analog outputs are isolated from the backplane bus of the SIMATIC S7-300.
The outputs are on the same potential MANA. The output for sensor supply has the
same potential MANA as the analog outputs.
The analog inputs are isolated from each other and from the backplane bus of the
SIMATIC S7-300.
The input for the interval counter IZ is isolated from the other analog parts and
from the backplane bus of the SIMATIC S7-300.

Characteristics and Technical Specifications of the SM 335
1-6 SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
1.4 Setting the measuring range with the measuring range
module
Measuring range module
A measuring range module is located on the left of the input/output module. The
measuring range module is used to set the method of measuring on the analog
inputs, that is, to choose between voltage and current measuring.
Settings
The measuring range module can be set for “A”, “C” or “D”.
The default setting is “D”.
Table 1-1 shows the allocation of measuring range module settings to possible
connections of the analog inputs.
The measuring range is set using HW Config. You can select from different current
or voltage ranges (see Section 3.2).
The required measuring range module setting is also displayed in HW Config.
Table 1-1 Measuring range module settings and measuring range defaults on the
SM 335
Setting of the measuring
range module
Analog input
wiring
Measuring range
(default value)
AInput 0: Voltage "10 V
Input 1: Voltage "10 V
Input 2: Voltage "10 V
Input 3: Current 4 to 20 mA
BNot assigned –
CInput 0: Voltage "10 V
Input 1: Voltage "10 V
Input 2: Current 4 to 20 mA
Input 3: Current 4 to 20 mA
DInput 0: Voltage "10 V
Input 1: Voltage "10 V
Input 2: Voltage "10 V
Input 3: Voltage "10 V

Characteristics and Technical Specifications of the SM 335
1-7
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
1.5 Technical specifications for the SM 335
1.5.1 General technical specifications
Table 1-2 General technical specifications
Dimensions and weight
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
With open-wire test in the range 0 to 10 V 30 m
Voltages, currents, potentials
Rated load voltage L+
•Polarized
Galvanic isolation
24 V DC
Yes
Yes
Permissible potential difference
•Between inputs (UCM)
•Between input (M terminal) and central
grounding point
•Isolation tested with 500 V DC
3 V/1.5 V (10 V ranges)
75 V DC/60 V AC
Power consumption
•From SIMATIC S7-300 backplane bus
•From L+
•Module power loss
Max. 75 mA
Max. 150 mA
Max. 3.6 W
Status, interrupts, diagnostics
Interrupts
•Comparator interrupt
•End-of-cycle interrupt
•Diagnostic interrupt
NO
Yes, programmable
Yes, programmable
Diagnostic functions
•Fault indication on the module in the event
of a group fault
•Diagnostic information can be read out
Yes, programmable
Yes, red LED
Yes
Miscellaneous
UL/CSA/FM Yes

Characteristics and Technical Specifications of the SM 335
1-8 SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
1.5.2 Technical specifications for the analog inputs
Table 1-3 Technical specifications for the analog inputs
Noise suppression and error limits for the inputs
Suppression of noise voltage for
f = n x (f1"1%), (f1 = interference frequency)
•Common-mode noise (Upp < 3 V)
•Series-mode noise
(peak noise value < rated value of the input range)
> 65 dB
0 dB
Crosstalk between inputs
•At 50 Hz
•At 60 Hz
–65 dB
–65 dB
Operational limit for voltage measuring
(over entire temperature range,
based on input range)
"0.15%
(for 14-bit resolution)
Operational limit for current measuring
(over entire temperature range, based on input range)
0.25%
Basic error
(operational limit at 25 °C, based on input range)
"0.1%
(for 14-bit resolution)
Temperature drift (based on input range) "0.13%
Linearity error (based on input range) "0.015%
Repeatability
(in steady state at 25 °C, based on input range)
"0.05%
Sensor selection data
Input ranges (rated values)/input resistance
•Voltage
•Current (max. 2 channels)
"1 V
"10 V
"2.5 V
0 to 2 V
0 to 10 V
"10 mA
0 to 20 mA
4 to 20 mA
10 MW
10 MW
10 MW
10 MW
10 MW
100 W
100 W
100 W
Permissible input voltage for voltage input
(destruction limit)
"30 V
Permissible input current for current input
(destruction limit)
25 mA
Connecting of sensors
•For measuring voltage
•For measuring current
– As 2-wire measuring transducer
– As 4-wire measuring transducer
•For measuring resistance
Possible
Not possible
Possible
Not possible

Characteristics and Technical Specifications of the SM 335
1-9
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Table 1-3 Technical specifications for the analog inputs
Analog value formation for the outputs
Measuring principle Successive approximation
Conversion time (per channel) in ms
•Basic conversion time for 4 channels in ms
Max. 200
Max. 1
Resolution
•Bipolar
•Unipolar
13 bits + sign
14 bits
Data of output to sensor supply
Rated voltage 10 V
Max. output current 25 mA
Short-circuit-proof Yes
Operational limit
(over entire temperature range)
0.2%
Temperature drift 0.002%/K
Basic error for rated voltage 0.1%

Characteristics and Technical Specifications of the SM 335
1-10 SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
1.5.3 Technical specifications for the analog outputs
Table 1-4 Technical specifications for the analog outputs
Analog value formation for the outputs
Resolution (incl. overrange)
•"10 V
•From 0 to 10 V
11 bits + sign
12 bits (+ sign)
Conversion time in msMax. 800
Setting time
•For resistive load
•For capacitive load
•For inductive load
t0.1 ms
v3.3 ms
t0.5 ms
Injection of substitute values Yes
Noise suppression and error limits for the outputs
Crosstalk between outputs –40 dB
Operational limit (over entire temperature
range, based on output range)
0.5%
Basic error
(operational limit at 25_C, based on output range)
0.2%
Temperature drift
(based on output range)
0.02%/K
Linearity error (based on output range) "0.05%
Repeatability
(in steady state at 25 _C, based on output range)
"0.05%
Output ripple (based on output range) "0.05%
Actuator Selection Data
Output range (rated values) "10 V
From 0 to 10 V
Burden resistance
•For voltage outputs
•For capacitive load
•For inductive load
Min. 3 kW
Max. 1 mF
Max. 1 mH
Voltage output
•Short-circuit protection
•Short-circuit current
Yes
Max. 8 mA
Connection of actuators
•For voltage output
– 2-wire connection
– 4-wire connection (measuring circuit)
Possible
Not possible