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Control Unit
SM 338
Siemens SM 338 Manuals
Manuals and User Guides for Siemens SM 338. We have
2
Siemens SM 338 manuals available for free PDF download: Equipment Manual, Reference Manual
Siemens SM 338 Equipment Manual (52 pages)
Ultrasonic Position Encoding Module
Brand:
Siemens
| Category:
Control Unit
| Size: 0.27 MB
Table of Contents
Table of Contents
5
1 Product Overview
9
2 The SM 338 Module
11
Layout
12
Front View of the Module
12
LED Indicators
13
Measuring Principle
14
Principle of Ultrasonic Position Encoding
14
Recommended Sensors
15
Possible Assignment of the Measuring Points
16
3 Mounting
18
Installation
18
Installation
19
Slot Numbers for S7 Modules
20
Terminal Assignment
21
4 Data Communication with the PLC
23
Organization of the Dual Port RAM
23
Input Area
24
Parameter Area
25
Example of the Measuring Points of a Sensor
27
Bytes for Counter Assignment
27
Default Values for the Parameter Area
30
System Diagnosis Bytes
32
5 Operation
37
Parameter Assignment
38
Example of an SDB 100
40
Normal Operation
43
Error Diagnostics
44
Flowchart of Channel-Related Diagnostics
45
6 Appendix
47
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Siemens SM 338 Reference Manual (19 pages)
POSITION ENCODER MODULE
Brand:
Siemens
| Category:
Control Unit
| Size: 0.07 MB
Table of Contents
Characteristics
1
Supported Encoder Types
2
Supported Data Formats
2
Firmware Update
2
Synchronous Operation
3
Hardware Requirements
3
Terminal Connection Diagram and Block Diagram
4
Wiring Rules
4
Module View and Block Diagram of the SM 338; POS-INPUT
4
Functions of the SM 338; POS INPUT
5
Encoder Value Acquisition
5
Free Running Encoder Value Acquisition
5
Synchronous Encoder Values Acquisition
5
Gray/Dual Converter
6
Transferred Encoder Value and Normalization
6
Normalization, Places
6
Parameter Units / Revolution
6
Example of Normalization of an Encoder Value
7
Before the Normalization
7
After the Normalization
7
Freeze Function
7
Ending the Freeze Function
8
SM 338; POS-INPUT Parameterization
8
Parameters of the SM 338; POS-INPUT
9
SM 338; POS-INPUT Addressing
10
Data Range for the Encoder Values
10
Input Addresses
10
Structure of the Double Data Word in Standard Mode
10
Structure of the Double Data Word in Fast Mode
11
Output Address IM Standard Mode
11
Reading out Data Areas
11
Example of Access to Encoder Values and Use of the Freeze Function
11
Diagnosis of the SM 338; POS-INPUT
13
Actions Following Diagnostic Message in STEP 7
13
Reading out Diagnostic Messages
13
Diagnostic Message Via SF LED
13
Diagnostic Messages of the SM 338; POS INPUT
14
Causes of Errors and Remedial Measures
15
Interrupts of the SM 338; POS INPUT
16
Enabling Interrupts
16
Diagnostic Interrupt
16
Technical Specifications of the 338; POS-INPUT
17
Inaccuracy of the Frozen Encoder Value (Freeze)
18
Isochrone Time of the Module
18
Synchronous Encoder Value Acquisition
18
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