Siemens 505-2557 installation and operation guide Example I/O Configuration Chart

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Checking Module First turn on the base supply power. If the module diagnostics detect no

Operationproblems, the status indicator on the front of the module will light. If the status indicator does not light, blinks, (or goes out during operation), the module has detected a failure. For information on viewing failed module status, refer to your SIMATIC TISOFT or SoftShop user manual.

To diagnose and correct a module failure, refer to the next section on troubleshooting.

You must also check that the module is configured in the memory of the PLC. This is important because the module will appear to be functioning regardless of whether it is communicating with the PLC. To view the PLC memory configuration chart listing all slots on the base and the inputs or outputs associated with each slot, refer to your SIMATIC or TISOFT Programming Manual. An example chart is shown in the following figure.

In this example, the SIMATIC 505±2557 Module is inserted in slot 1 in I/O base 0. Data for channel 1 appears in word location WX1, data for channel 2 appears in word location WX2, etc. For your particular module, look in the chart for the number corresponding to the slot occupied by the module. If word memory locations appear on this line, then the module is registered in the PLC memory and the module is ready for operation.

Figure 2-8 Example I/O Configuration Chart

If the line is blank or erroneous, re±check the module to ensure that it is firmly seated in the slots. Generate the PLC memory configuration chart again. If the line is still incorrect, contact your Siemens Energy & Automation, Inc., distributor or sales office.

NOTE: In advanced Operating Mode the module logs in to the PLC as 16X, 16Y, 32WX and 32WY.

SIMATIC 505±2557 Installation and Operation Guide

Installation 2-13

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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 Community CE Agency ApprovalsEuropean 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 UnitsSignals EffectOut-of-Range Input Effect of Voltage Input 10 Ohm Copper Resolution Input ResolutionInstalling and Configuring the Module Calculating the I/O Base Power BudgetSelecting 2 and 3 Wire or 4 Wire Operation Installing and Configuring the Module Configuring Temperature or SelectingMillivolt Input Fahrenheit Selecting DegreesCelsius or Selecting DataConfiguration Jumper Locations Inserting Module IntoBase 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 Overview Advanced Software FunctionsIntroduction AdvancedSetting the Module ConfigurationJumper Logging Controller I/OMemory Input Registers Internal Register StructuresInput and Output Register Offsets Input Channel DataInput Flag Bits Peak/Valley Hold Input WordsOutput Data Registers AveragingFunction Enable Bits Control RegistersInputs 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 Timing Considerations When UsingTiming Overhead for Functions Enabled Timing ConstraintsDefault Function Values for Simatic 505±2557 Default ValuesDefault Function Values Additional Information about Each FunctionCentigrade or Alarm SetpointsDegrees Degrees FahrenheitDigital Filtering Averaging Peak and ValleyHold 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