Siemens SIMATIC TI505 User manual

SIMA TIC TI505/TI500
MODNIM
User Manual
Order Number: PPX:505-8122-1
Manual Assembly Number: 2586546-0083
Original Edition

01/21/92
Copyright 1993 by Siemens Industrial Automation, Inc.
All Rights Reserved — Printed in USA
Reproduction, transmission or use of this document or
contents is not permitted without express consent of
Siemens Industrial Automation, Inc. All rights, including rights
created by patent grant or registration of a utility model or
design, are reserved.
Since Siemens Industrial Automation, Inc. does not possess
full access to data concerning all of the uses and applications
of customer ’ s products, we do not assume responsibility either
for customer product design or for any infringements of patents
or rights of others which may result from our assistance.
T echnical data is subject to change.
W e check the contents of every manual for accuracy at the
time it is approved for printing; however , there may be
undetected errors. Any errors found will be corrected in
subsequent editions. Any suggestions for improvement are
welcomed.

MANUAL PUBLICA TION HISTOR Y
SIMATIC TI505/TI500 MODNIM User Manual
Or der Manual Number: PPX:505-8122-1
Refer to this history in all correspondence and/or discussion about this manual.
Event Date Description
Original Issue 03/93 Original Issue (2801280–0001), Softwar e Release 3.0

LIST OF EFFECTIVE P AGES
Pages Description Pages Description
Cover/Copyright Original
History/Effective Pages Original
iii — ix Original
1-1 — 1-20 Original
2-1 — 2-39 Original
A-1 — A-4 Original
B-1 — B-2 Original
C-1 — C-3 Original
D-1 — D-6 Original
Index-1 — Index-3 Original
Registration Original

Contents iii
Contents
Preface
Chapter 1 Installation and Set-up
1.1 Modbus Communications Overview 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modbus Network Characteristics 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modbus Pr otocol 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Modes 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Quick Refer ence Installation Steps 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Requir ements 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handling the Module 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspecting the Module 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Started with Configuration and Installation 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Setting the Dipswitches 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dipswitch Functions 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Network Addr ess 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Network Configuration Parameters 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data T ransmission Rate 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stopbit Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parity/No Parity Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odd/Even Parity Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASCII/RTU Mode Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RTS/CTS Handshaking 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Y/C Coil Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Installing the MODNIM 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Series 505 MODNIM in the I/O Base 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Series 500 MODNIM in the I/O Base 1-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Switches and Indicator Lights 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switches and Buttons 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset Button 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Button 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local/Remote Switch 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicator Lights 1-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 Diagnostic T ests 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Built-in Diagnostic T ests 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-up Self T est 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Run-time Self T ests 1-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User-Initiated Self T est 1-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

iv Contents
1.7 Establishing Communications 1-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verifying that the MODNIM is Logged into the PLC 1-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Network Cables 1-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Communication Cables 1-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Building a Cable 1-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2 Modbus Commands
2.1 Modbus Pr otocol Overview — ASCII T ransmission Mode 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Modbus Pr otocol 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The ASCII T ransmission Frame 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Start Field 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Addr ess Field 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Function Field 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Data Field 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The LRC Field 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The EOF Field 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Ready Field 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Modbus Pr otocol Overview — R TU T ransmission Mode 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The R TU T ransmission Frame 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The R TU Frame Fields 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Message Delineation 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checksum 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Invalid Characters and Messages 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Comparing Modbus Functions with TIW A Y I Network Commands 2-6. . . . . . . . . . . . . . . . . . .
Modbus Functions vs. TIW A Y Commands 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Addressing 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Address Limits 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Modbus Function Descriptions 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 01 — Read Coil Status 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 02 — Read Input Status 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 03 — Read Output Registers 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 04 — Read Input Registers 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 05 — W rite a Single Coil 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 06 — W rite a Single Register 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 07 — Read Exception Status 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 08 — Execute Diagnostics 2-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 11 — Get Comms Event Counter 2-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 12 — Get Comms Event Log 2-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 15 — W rite Multiple Coils 2-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 16 — W rite Multiple Registers 2-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 17 — Report Slave ID 2-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Error Responses 2-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents v
Appendix A Network Cable Communications
A.1 Network Cables A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Communication Cables A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Building Cables A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Pinouts A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.2 Communications Parameters A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RS-232-C Pin Assignments A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Communications Parameters A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B Exception Codes
B.1 Exception Codes Supported by the MODNIM B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C Specifications
C.1 Environmental Specifications C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C.2 MODNIM Communications Specifications C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix D Using the MODASST Program
D.1 Getting Started D-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview D-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hardware Requir ements D-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running the Pr ogram from the Floppy Disk D-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running the Pr ogram fr om the Har d Disk D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D.2 Starting Pr ogram Operation D-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Communication Port Options D-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Remaining Options D-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D.3 Using Pr ogram Options D-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup Options D-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Run Diagnostics D-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Find Module Settings D-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Talk to Module D-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Batch Send fr om File D-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verifying Communications D-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vi Contents
List of Figures
Figur e 1-1 Multidrop and Point-to-point Configurations 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-2 Quick Reference Installation Pr ocedures 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-3 Address Setting Examples 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-4 Dipswitch Settings for Network Data T ransmission Rates 1-7. . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-5 Series 505 MODNIM Switches and LEDs 1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-6 Series 500 MODNIM Switches and LEDs 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-7 Installing the Series 505 MODNIM in the I/O Base 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-8 Series 505 MODNIM Example Dipswitch Settings 1-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-9 Keying the I/O Base Slot for the Series 500 MODNIM 1-12. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-10 Installing the Series 500 MODNIM in the I/O Base 1-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-11 Series 505 and 500 MODNIM Indicator Lights 1-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-12 LED Status during Power-Up Self T est 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-13 LED Status during Nor mal Run-T ime Operation 1-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 1-14 Sample I/O Definition Chart 1-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-1 ASCII T ransmission Frame 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-2 RTU T ransmission Frame 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-3 Bit Orientation 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-4 Read Coil Status Example — Request 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-5 Read Coil Status Example — Response 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-6 Read Coil Status Example — Data Field 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-7 Read Input Status Example — Request 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-8 Read Input Status Example — Response 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-9 Read Input Status Example — Data Field 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-10 Read Output Register Example — Request 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-11 Read Output Register Example — Response 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-12 Read Input Register Example — Request 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-13 Read Input Register Example — Response 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-14 Write a Single Coil Example — Request 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-15 Read Input Register Example — Response 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-16 Write a Single Register Example — Request 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-17 Write a Single Register Example — Response 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-18 Read Exception Status Example — Request 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-19 Read Exception Status Example — Response 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-20 Exception Status Bits 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-21 Execute Diagnostics Example — Request 2-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-22 Execute Diagnostics Example — Response 2-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-23 Get Comms Event Counter Example — Request 2-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-24 Get Comms Event Counter Example — Response 2-30. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-25 Get Comms Event Log Example — Request 2-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-26 Get Comms Event Log Example — Response 2-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-27 Write Multiple Coils Example — Request 2-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents vii
Figur e 2-28 Coil Bit Patter n 2-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-29 Write Multiple Coils Example — Response 2-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-30 Write Multiple Registers Example — Request 2-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-31 Write Multiple Registers Example — Response 2-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-32 Report Slave ID Example — Request 2-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-33 Report Slave ID Example — Response 2-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-34 Exception Response Frame— ASCII Mode 2-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e 2-35 Exception Response Frame — R TU Mode 2-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e A-1 MODNIM to Host (without Handshaking) A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e A-2 MODNIM to Host (with Handshaking) A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e A-3 MODNIM to Commer cial Modem (with Handshaking) A-3. . . . . . . . . . . . . . . . . . . . . . . .
Figur e D-1 First Configuration Scr een after Start-Up D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur e D-2 MODASST Setup Menu D-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

viii Contents
List of T ables
T able 1-1 Transmission Mode Characteristics 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1-2 Status of Indicator Lights 1-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1-3 Indicator Status after User-Initiated T est 1-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 1-4 Standard Communication Cables 1-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-1 Modbus Functions Supported 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-2 RTU Mode T iming 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-3 Terminology Dif ferences 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-4 Diagnostic Codes Supported 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-5 Diagnostic Bits 2-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-6 Event Byte T ypes 2-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-7 Function Code 17 Response Options 2-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able 2-8 Exception Responses 2-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able A-1 RS-232-C Connector Pin Assignments A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able A-2 Communications Parameters A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able B-1 Exception Codes B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able C-1 Environmental Specifications C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able C-2 MODNIM Specifications C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able C-3 Modbus Codes vs. TIW A Y Primitives Chart C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface ix SIMATIC TI505/TI500 MODNIM User Manual
Preface
This manual provides the following information on the Series 505  and
Series 500  MODNIM (Modbus  Network Interface Module), model
numbers PPX:505–5184 and PPX:500–5184.
• Basic features of the MODNIM
• Installation and configuration
• Diagnostic self-testing procedures
• Operating instructions
• Modbus commands and error responses
• MODNIM specifications
The following publications contain related information which supplement
this manual.
Series 505 Manuals
•SIMATICTI505 Programming Reference Manual
•SIMA TIC TI505 TISOFT  User Manual
•SIMATICTI525/TI535 Hardware and Installation Manual
•SIMATICTI545 System Manual
Series 500 Manuals
•SIMATIC TI520C /TI530C Programmable Controller Manual
• Series 500 I/O Base User ’ s Manual
•SIMATICTI560/TI565 Programming Manual
The following Gould Modicon publications are also recommended.
• Gould Modbus Protocol (part no. PI-MBUS-300 Rev B)
• Modbus System Planning (part no. PI-MBUS-PLN)
• Gould Modicon J474/J475 Interface (part no. PI-J475-001 Rev B)
If you need information that is not included in this manual, or if you have
problems using the module, contact your Siemens Industrial Automation,
Inc. distributor or sales office. If you need assistance in contacting your
distributor or sales office in the United States, call 1–800–964-41 14.
Purpose of this
Manual
Related Manuals
Technical
Assistance

Installation and Set-up 1-1 SIMATIC TI505/TI500 MODNIM User Manual
Chapter 1
Installation and Set-up
1.1 Modbus Communications Overview 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modbus Network Characteristics 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modbus Pr otocol 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Modes 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Quick Refer ence Installation Steps 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Requir ements 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handling the Module 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspecting the Module 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Started with Configuration and Installation 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Setting the Dipswitches 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dipswitch Functions 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Network Addr ess 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Network Configuration Parameters 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data T ransmission Rate 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stopbit Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parity/No Parity Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odd/Even Parity Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASCII/RTU Mode Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RTS/CTS Handshaking 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Y/C Coil Selection 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Installing the MODNIM 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Series 505 MODNIM in the I/O Base 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Series 500 MODNIM in the I/O Base 1-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Switches and Indicator Lights 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switches and Buttons 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset Button 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Button 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local/Remote Switch 1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicator Lights 1-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 Diagnostic T ests 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Built-in Diagnostic T ests 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-up Self T est 1-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Run-time Self T ests 1-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User-Initiated Self T est 1-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7 Establishing Communications 1-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verifying that the MODNIM is Logged into the PLC 1-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Network Cables 1-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Communication Cables 1-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Building a Cable 1-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation and Set-up
1-2 SIMATIC TI505/TI500 MODNIM User Manual
1.1 Modbus Communications Overview
The Modbus system is a Local Area Network (LAN) designed to work in an
industrial environment. It is a master/slave network in which a number of
slave nodes (e.g., Programmable Logic Controllers, or PLCs) are connected
to a Master Node, which is a host computer .
The Modbus protocol determines how messages are passed between the host
computer and the secondary nodes. Up to 247 slaves can reside on a single
network. Each node in that network must have a unique address ranging
from 1 to 247.
Because it is a master/slave network, each request is paired to one response.
The exception to this is broadcast mode, when no response is returned. This
mode is only valid for Modbus functions 5, 6, 8, 15, and 16.
NOTE: Only the master can initiate a message in a Modbus network.
The following two types of messages are used.
• The Request/Response type, where a single node is addressed.
• The Broadcast/No Response type, where all nodes are addressed but
none respond.
The Modbus message consists of an “envelope” which contains different
types of data. The envelope enables the data to be directed to the correct
address on the network. It also contains information to determine if the
contents were received correctly and instructions about what to do with the
data.
T wo modes of data transmission are available for a given network; however ,
only one mode can be selected at a given time, and every node on the
network must conform to that mode. Usually , the requirements of the host
computer determine which mode should be selected. The two modes are the
following.
•
ASCII (American Standard Code for Information Interchange)
• RTU (Remote T erminal Unit)
The MODNIM can be set to operate in either mode.
Modbus Network
Characteristics
Modbus Pr otocol
Transmission
Modes

Installation and Set-up 1-3 SIMATIC TI505/TI500 MODNIM User Manual
Details of the ASCII and RTU modes of transmission are listed in T able 1-1.
T able 1-1 T ransmission Mode Characteristics
Characteristic ASCII RTU
Code used: 7 bits hexadecimal
(ASCII printable)
8 bits binary
Bits per character:
Start 1 1
Data 7 8
Stop 1 or 2 1 or 2
Parity Optional Optional
Checksum LRC CRC
NOTE: On multidrop networks, the MODNIM requires a commercial modem
to connect to the Modbus network, as shown in Figure 1-1. The MODNIM
connected to a Series 505 PLC is equivalent to the use of the Modicon J475
modem interface with a Modicon PLC.
Programmable Controllers
Modbus Network
Modem Modem
Multidrop Configuration
Modem
MODNIM
Modbus
host Modbus host
MODNIM
Point-to-point
Figure 1-1 Multidrop and Point-to-point Configurations

Installation and Set-up
1-4 SIMATIC TI505/TI500 MODNIM User Manual
1.2 Quick Reference Installation Steps
In order to install and use the MODNIM module correctly , you must meet
the following requirements.
• Ensure that you have the appropriate MODNIM model.
• The communications configurations of all devices attached to the
network must match; i.e., they must all have the same baud rate, stop
bits, parity , handshaking, and transmission mode (ASCII or RTU).
Figure 1-2 provides a quick reference list of the basic steps for installing the
MODNIM.
Insert module into selected I/O slot (Series 505) or two adjacent slots (Series 500).
Set configuration dipswitches.
Power up the I/O base.
Check MODNIM indicator lights.
V
erify MODNIM is logged into PLC.
Connect network cables.
Disconnect power to the I/O base.
Install power and I/O cabling.
Figure 1-2 Quick Refer ence Installation Pr ocedures
General
Requirements
Procedures

Installation and Set-up 1-5 SIMATIC TI505/TI500 MODNIM User Manual
Many integrated circuit (IC) devices are susceptible to damage by the
discharge of static electricity . Follow the suggestions listed below to reduce
the probability of damage to these devices when you are handling this
Network Interface module, the PLC, a base controller , or any of the I/O
modules.
Both the module and the person handling the module should be at the same
ground potential. Also, follow these guidelines.
•T ransport the module in an anti-static container or antistatic material.
• Ensure that the work area has a conductive pad with a lead connecting
it to a common ground.
• Ground yourself by making contact with the conductive pad and/or by
wearing a grounded wrist strap.
Inspect the module for any visible damage before setting any selectable
features. If damage is detected, contact your distributor or sales office for
further instructions.
The following sections describe the procedures for configuring the module,
installing the module in the base, connecting the communications cables to
the MODNIM, and initializing the system for operation. Before installing
the MODNIM, make sure that the PLC is installed and the programming
device is connected to the system.
Handling the
Module
Inspecting the
Module
Getting Started
with Configuration
and Installation

Installation and Set-up
1-6 SIMATIC TI505/TI500 MODNIM User Manual
1.3 Setting the Dipswitches
The MODNIM module has two blocks of dipswitches.
• The block of 8 dipswitches is used to select the MODNIM’s address on
the network.
• The block of 10 dipswitches is used to configure the network
communications parameters.
NOTE: The configuration and address switch settings are read only once
following a power-up or RESET . Be sure to reset the MODNIM following
any change in dipswitch settings or PLC memory configuration. In addition,
be aware that when the MODNIM is reset, no communication can occur
from the host to the module for several seconds.
Each node on a Modbus network must have a unique address. The range of
valid addresses is 1 to 247 (0000 0001 to 1 11 1 01 1 1). The address is set in
binary numbers using the block of 8 dipswitches.
NOTE: Addresses 0 or 248 to 255 (0000 0000 or 1 11 1 1000 to 1 11 1 1 11 1) are
invalid addresses and, if selected, cause the module to go into T est mode.
Figure 1-3 shows examples of network addresses and their corresponding
dipswitch settings. (W ith the Series 505 MODNIM, hold the module with
the faceplate pointing upward, as shown in Figure 1-5. For the Series 500
MODNIM, refer to Figure 1-6 for dipswitch orientation.)
1
2
4
8
16
32
64
128
Bit
Weight
1
(0000 0001)
01
Address
12345678
1
2
4
8
16
32
64
128
25
(0001 1001)
01
Address
12345678
1
2
4
8
16
32
64
128
203
(1 100 101 1)
01
Address
12345678
Represents direction to slide a sliding-type switch, or
side of switch to press down on a rocker-type switch
on Series 505 MODNIM.
=
00011001 00000001 11001011
Figure 1-3 Address Setting Examples
Dipswitch
Functions
Setting the Network
Address

Installation and Set-up 1-7 SIMATIC TI505/TI500 MODNIM User Manual
The block of 10 dipswitches is used to configure the network communication
parameters, which include data transmission rate, stopbit selection, parity ,
transmission mode, RTS/CTS handshaking, and output coil mapping.
(NOTE: For all Series 500 MODNIM dipswitch settings, see Figure 1-6.)
Switches 1 through 4 are used to set the data transmission rate. All devices
on the network must be configured to communicate at the same data rate.
Switch settings for each of the available data rates are shown in Figure 1-4.
0000 – 50
0001 – 50
0010 – 75
0011 – 110
0100 – 150
0101 – 200
0110 – 300
0111 – 600
1000 –1200
1001 –1800
1010 –2400
1011 –3600
1100 –4800
1101 –7200
1110 –9600
1111 –19200
Switches
1234 Baud
10
9
8
7
6
5
4
3
2
1
Data
Rate
10
Network Configuration
Dipswitches
For Series 505:
01 For Series 500:
Figure 1-4 Dipswitch Settings for Network Data T ransmission Rates
Switch 5 is used to select 1 or 2 stopbits. Set switch to the left for 1 stopbit,
to the right for 2 stopbits (on Series 505; for Series 500, see Figure 1-6).
Switch 6 is used to select Parity or No Parity when communicating over an
RS-232-C data link. T o select Parity , set switch to the left, then determine
whether you need odd or even parity and set switch 7 accordingly .
If you selected Parity with switch 6, then you must also select either Odd or
Even Parity using switch 7. This switch is active only if switch 6 is set to
Parity . Set switch to the left for Even parity , to the right for Odd parity .
Switch 8 is used to select ASCII or RTU mode of transmission. Slide switch
to the left for ASCII mode, to the right for RTU mode.
Switch 9 is used to enable or disable RTS/CTS handshaking. If you are
using point-to-point connections without using modems, you can disable
RTS/CTS handshaking by setting switch 9 to the left. Set switch 9 to the
right to select RTS/CTS handshaking for use with modems.
Switch 10 is used to determine whether the MODNIM collects data from the
PLC’ s Discrete Output (Y) memory or the Control Relay (C) memory . Set
switch to the left for C coils, to the right for Y outputs.
Selecting Network
Configuration
Parameters
Data T ransmission
Rate
Stopbit Selection
Parity/No Parity
Selection
Odd/Even Parity
Selection
ASCII/R TU Mode
Selection
RTS/CTS
Handshaking
Y/C Coil Selection

Installation and Set-up
1-8 SIMATIC TI505/TI500 MODNIM User Manual
Setting the Dipswitches (continued)
NIM GOOD —
Base power and
MODNIM operating status
XMT —
Data T ransmit indicator
ON LINE —
Connected to the Modbus network.
Continuous ON indicates remote mode;
flashing indicates local mode
PC GOOD —
PLC/MODNIM
communication
link status
REC —
Receiving Data
indicator
TEST —
T est mode status
Series 505 MODNIM
Dipswitches
Network
Configuration
Network
Address
Side V iew of Module,
Faceplate Up
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
Y OUTPUT
RTS/CTS: ON
RTU MODE
PARITY: ODD
PARITY
: OFF
STOPBITS: 2
1
1
1
1
DATA
RATE
SELECT
C COILS
RTS/CTS: OFF
ASCII MODE
PARITY: EVEN
PARITY
: ON
STOPBITS: 1
0
0
0
0
Push Down
Left
0
Push Down
Right
505-5184
NIM
GOOD PC GOOD
XMT REC
ON
LINE TEST
REMOTE
LOCAL
TEST
RESET
PORT A
POR T B
Network
Address
Dipswitch Settings
Data T ransmission
Rate Settings
0 0 0 0 –50
0 0 0 1 –50
0 0 1 0 –75
0 0 1 1 –110
0 1 0 0 – 150
0 1 0 1 – 200
0 1 1 0 – 300
0 1 1 1 – 600
1 0 0 0 – 1200
1 0 0 1 – 1800
1 0 1 0 – 2400
1 0 1 1 – 3600
1 1 0 0 – 4800
1 1 0 1 – 7200
1 1 1 0 – 9600
1 1 1 1 – 19200
Switches
1 2 3 4 Baud
MODNIM
1
2
4
8
16
32
64
128
Figure 1-5 Series 505 MODNIM Switches and LEDs

Installation and Set-up 1-9 SIMATIC TI505/TI500 MODNIM User Manual
Reset
Self-Test
Local/Remote
•Push to reset
Remote control (on-line)
Local control (of f-line)
NIM GOOD
PC/NIM COMM GOOD
ONLINE
RECEIVE
TRANSMIT
TEST MODE
Reset
Self-Test
Local/Remote
Configuration
Switches
Network
Address
Switches
Series 500 MODNIM
1. Select Local control
2. Remove network cables
3. Install Loopback connectors
4. Press Reset and Self-T est
together and hold 5 seconds.
DIPSWITCH Settings
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
Y OUTPUTS
RTS/CTS: ON
RTU MODE
PARITY: ODD
PARITY
: OFF
STOPBITS: 2
1
1
1
1
DATA
RATE
SELECT
1
2
4
8
16
32
64
128
C COILS
RTS/CTS: OFF
ASCII MODE
PARITY: EVEN
PARITY
: ON
STOPBITS: 1
0
0
0
0
0
Network
Address
Data T ransmission Rates
0000 – 50
0001 – 50
0010 – 75
0011 – 110
0100 – 150
0101 – 200
0110 – 300
0111 – 600
1000 –1200
1001 –1800
1010 –2400
1011 –3600
1100 –4800
1101 –7200
1110 –9600
1111 –19200
Switches
1234 Baud
01
Figure 1-6 Series 500 MODNIM Switches and LEDs