Siemens 505-2557 Troubleshooting Flow Diagram, Symptom Probable Cause Corrective Action

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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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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 ApprovalDescription 100 Ohm, 10 Ohm, 120 Ohm RTDs, or Millivolt InputsOperating Modes Word Input to the PLC from the Module RTD Input to Digital Conversion Scale UnitsOut-of-Range Input SignalsEffect Effect of Voltage Input 10 Ohm Copper Resolution Input ResolutionSelecting 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 DataConfiguration Jumper Locations Base InsertingModule Into Wiring the Input Connectors Copper Wire Table at 25 Degrees CelsiusPress 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 AdvancedJumper Setting the ModuleConfiguration Memory LoggingController I/O Internal Register Structures Input and Output Register OffsetsInput Registers Input Channel DataInput Flag Bits Peak/Valley Hold Input WordsOutput Data Registers AveragingInputs Function Enable BitsControl Registers Discrete Handshake Inputs Outputs Data Identification BitsLoading Data into the Simatic 505±2557 Module Data Loading ProcessSample 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 ConstraintsDefault Values Default Function ValuesDefault Function Values for Simatic 505±2557 Additional Information about Each FunctionAlarm Setpoints DegreesCentigrade or Degrees FahrenheitDigital Filtering Hold AveragingPeak and Valley Hold Reset Flag BitsFunction PrecedenceTroubleshooting 10 Troubleshooting Flow Diagram Symptom Probable Cause Corrective ActionI/O Register Quick Reference 17 I/O Register Quick ReferenceOr K Memory Configuration Tables Page Addressing Worksheet Items Unique to the Simatic 505±2557 Module 18 Open RTD Status BitsTroubleshooting Specifications Table B-1 SpecificationsSpecifications subject to change without notice Jumper Settings Log Sheet Customer Response Business Reply Mail