Siemens 505-2557 installation and operation guide Configuring

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Configuring the	The SIMATIC 505±2557 must be configured for 10 Ohm copper, 100 Ohm
Module	platinum or 120 Ohm nickel RTDs (2, 3 or 4 wire) or millivolt range and
	digital filtering/no filtering mode before wiring the input connectors and
	inserting the module into the I/O base.

	NOTE: As shipped, all input channels are configured 100 Ohm platinum, 3
	wire RTDs, degrees Centigrade and digital filtering enabled.

	Configuring the module is a two step process. Hardware jumpers are
	positioned to provide proper gain and lead wire compensation for either 3
	wire or 4 wire RTDs. DIP switches are provided to inform the
	microprocessor the changes made to the hardware.
	Changing the module input channel configuration involves the following
	steps:
	1.	Selecting temperature or millivolt measurement via DIP switch
	2.	Selecting 3 or 4 wire compensation
	3.	Selecting 100 Ohm platinum, 120 Ohm nickel or 10 Ohm copper input
		mode for each channel
	4.	Selecting standard login mode (16WX) or Advanced Operating Mode
	5.	Selecting digital filtering or no filtering for the module
	6.	Selecting degrees C or F for the module
	7.	Selecting Engr units or SCALE units for module
	8.	Logging the configuration jumper settings for future reference
	Each of these steps is described in the following sections.

SIMATIC 505±2557 Installation and Operation Guide

Installation

2-3

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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