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MANUAL PUBLICA

TION HISTOR

Y

SIMATICTI500/TI505

TIW

A

Y I Gateway User Manual

Or

der Manual Number: PPX:TIW

AY–8104–2

Refer to this history in all correspondence and/or discussion about this manual.

Event Date Description

Original Issue

09/85

Original Issue (2491964–0001)

Second Edition

09/92

Second Edition (2491964–0002)

Table of Contents

Default Chapter5
- Table of Contents5
Preface11
- TIWAY I Gateway Models11
Chapter 1 Product Overview14
Introduction14
- The Gateway Interface14
- Distributed Control Systems14
- TIWAY I Gateway as Interface between PLC Network and Host System14
Basic Operating Features15
- Interface Ports15
- TIWAY I Gateway15
Chapter 2 Network Installation18
TIWAY I Network and Gateway Installation Checklist18
- Quick Reference Installation Steps18
- Basic Installation and Set-Up Steps18
  - Basic Installation Procedures19
  - Requirements for Installing the Gateway19
Network Media Installation - Local Line20
- Overview20
- Local Line Cable Characteristics20
- Pin Assignments for Local Line Connector20
- TIWAY I Network Characteristics21
- Number of Local Line Secondaries Vs. Cable Distance21
  - Local Line Hardware Components22
- TIWAY I Tap Housing22
- Terminating the Local Line23
- Basic Tap Spacing Rules24
- Additional Tap Spacing Rules25
Network Media Installation - RS-232-C Modem Interface28
- Data Transmission Characteristics28
- RS-232 Pin Assignments28
- RS-232-C Connector Pin Assignments28
Chapter 3 Gateway Installation and Configuration30
Installing the TIWAY I Gateway30
- Basic Mounting Guidelines30
- Possible Bracket Locations for Mounting Gateway30
  - Power Connections and Initialization31
- AC Power Connections31
- Dipswitch Settings for the Network and Host Ports33
Dipswitch Configuration and Function34
- Overview34
- Host Port Dipswitch Configuration34
- Network Port Dipswitch Configuration34
- Dipswitch Settings for the Host Interface Port35
- Data Transmission Rates Supported35
- Dipswitch Settings for the Network Interface Port36
- Dipswitch Settings for Network Data Transmission Rates36
Switches and Indicator Lights38
- Online/Offline Switch38
- Self-Test Button38
- Reset Button38
- Gateway Operation Switches38
- Indicator Lights39
Diagnostic Tests40
- Built-In Diagnostic Tests40
- Power-On Test40
- Operational Diagnostic Test40
- User-Initiated Test41
- RS-232-C/423 Loopback Connections41
- Burn-In and Final Tests42
- Indicator Status42
  - Indicator Status after User-Initiated Test42
Appendix A Data Type Identification43
Corresponding Data Types43
SIMATIC TI Plcs Supported by TIWAY I Gateway43
TIWAY I Gateway Specifications43
- A.1 Corresponding Data Types44
- Data Type Identification44
Appendix B System Configuration Forms47
System Configuration47
V-Memory Offset Tables47
- System Configuration Form48
- V-Memory Offset Table (Resident Information49
- V-Memory Offset Table (Received Information49
Appendix C Modbus Commands51
Modbus Protocol Overview51
- The RTU Transmission Frame51
- RTU Transmission Frame51
- Bit Orientation53
Modbus Function Descriptions55
- Introduction55
- Code 01 - Read Coil Status55
- Read Coil Status Example - Request55
- C-3 Read Coil Status Example — Request55
- Read Coil Status Example - Response56
- Read Coil Status Example - Data Field56
  - Code 02 - Read Input Status57
- Read Input Status Example - Request57
- Read Input Status Example - Response57
- Read Input Status Example - Data Field58
  - Code 03 - Read Output Registers59
- Read Output Register Example - Request59
- Read Output Register Example - Response59
  - Code 04 - Read Input Registers60
- Read Input Register Example - Request60
- Read Input Register Example - Response60
  - Code 05 - Write a Single Coil61
- Write a Single Coil Example - Request61
- Read Input Register Example - Response62
  - Code 06 - Write a Single Register63
- Write a Single Register Example - Request63
- Write a Single Register Example - Response63
  - Code 07 - Read Exception Status64
- Read Exception Status Example - Request64
- Read Exception Status Example - Response64
- Exception Status Bits65
  - Code 08 - Execute Diagnostics66
- Execute Diagnostics Example - Request66
- Execute Diagnostics Example - Response66
  - Diagnostic Codes Supported67
  - Code 11 - Get Comms Event Counter69
- Get Comms Event Counter Example - Request69
- Get Comms Event Counter Example - Response69
  - Code 12 - Get Comms Event Log70
- Get Comms Event Log Example - Request70
- Get Comms Event Log Example - Response70
  - Event Byte Types71
  - Code 15 - Write Multiple Coils72
  - Code 16 - Write Multiple Registers74
    - C-29 Write Multiple Registers Example — Request74
    - C-30 Write Multiple Registers Example — Response74
User-Defined Modbus Commands75
- Command 65 - Read C Memory75
  - C-31 Command 65 — Request75
  - C-32 Command 65 — Response75
- Command 66 - Read K Memory76
- Command 67 - Read WY Memory76
Error Responses77
- C-37 Exception Response Frame77
- C.4 Error Responses77
- Exception Responses77
Appendix D Configuring the PLC for Fisher PROVOX79
Considerations for Configuring a TIWAY I/PROVOX System79
- PLC Configuration Requirements79
- Network Design Considerations79
PLC Programming Considerations80
- Blocking Network Data80
- Writing to Integer Registers80
- Writing to Discrete Points80
- PLC Status Register80
PLC Programming Example81
- Data to be Accessed81
- PLC Data to be Accessed81
- V-Memory Block81
- Relay Ladder Logic Program82

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