Troubleshooting Flow Diagram | Siemens 505-2557 instruction

Troubleshooting (continued)

Table 3-10 Troubleshooting Flow Diagram

Symptom

Probable Cause

Corrective Action


Wrong values	Not logged in	Login to controller

	Not logged in correctly	Verify log-in
	Ladder program did not	Debug ladder program.
	Ladder program did not	Debug ladder program.
	execute	Verify V-memory tables.
No functions working
No functions working	Offsets incorrect	Calculate offsets starting
		address

Functions never enabled

Edit ladder program to enable function after loading data

3-26 Advanced Function Programming

SIMATIC 505±2557 Installation and Operation Guide

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Siemens 505-2557 installation and operation guide Troubleshooting Flow Diagram, Symptom Probable Cause Corrective Action

Contents

Simatic Copyright 1998 by Siemens Energy & Automation, Inc Manual Publication History List of Effective Pages Contents Iv Contents List of Figures List of Tables Preface Agency Approvals EuropeanCommunity CE Approval Description 100 Ohm, 10 Ohm, 120 Ohm RTDs, or Millivolt Inputs Operating Modes Word Input to the PLC from the Module RTD Input to Digital Conversion Scale Units Out-of-Range Input SignalsEffect Effect of Voltage Input 10 Ohm Copper Resolution Input Resolution Selecting 2 and 3 Wire or 4 Wire Operation Installing and Configuring the ModuleCalculating the I/O Base Power Budget Installing and Configuring the Module Configuring Millivolt Input Temperature orSelecting Selecting Degrees Celsius orFahrenheit Selecting Data Configuration Jumper Locations Base InsertingModule Into Wiring the Input Connectors Copper Wire Table at 25 Degrees Celsius Press In Wiring Connector Wiring Diagram for 2, 3, or 4 Wire RTD Wiring Diagram for Millivolt Measurements Cable Grounding Example I/O Configuration Chart Advanced Function Programming Advanced Software Functions IntroductionOverview Advanced Jumper Setting the ModuleConfiguration Memory LoggingController I/O Internal Register Structures Input and Output Register OffsetsInput Registers Input Channel Data Input Flag Bits Peak/Valley Hold Input Words Output Data Registers Averaging Inputs Function Enable BitsControl Registers Discrete Handshake Inputs Outputs Data Identification Bits Loading Data into the Simatic 505±2557 Module Data Loading Process Sample Low and High Alarm Setpoints Identifying the Data Being Transferred 11 Enabling the Functions Loaded Loading Programs into the I/O Module 13 Startup Relay Ladder Logic Page When Using Timing Overhead for Functions EnabledTiming Considerations Timing Constraints Default Values Default Function ValuesDefault Function Values for Simatic 505±2557 Additional Information about Each Function Alarm Setpoints DegreesCentigrade or Degrees Fahrenheit Digital Filtering Hold AveragingPeak and Valley Hold Reset Flag Bits Function Precedence Troubleshooting 10 Troubleshooting Flow Diagram Symptom Probable Cause Corrective Action I/O Register Quick Reference 17 I/O Register Quick Reference Or K Memory Configuration Tables Page Addressing Worksheet Items Unique to the Simatic 505±2557 Module 18 Open RTD Status Bits Troubleshooting Specifications Table B-1 Specifications Specifications subject to change without notice Jumper Settings Log Sheet Customer Response Business Reply Mail