Siemens 505-2557 installation and operation guide Sample Low and High Alarm Setpoints

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Internal Register Structures (continued)

The following steps explain how data is loaded into the SIMATIC 505±2557 module.

1.V- or K-memory tables are constructed with the scaling, alarm setpoints, filtering and averaging units. In the example below, low alarm and high alarm setpoints are loaded for each channel from V1 through V32. V1 ± V16 contain the low alarm setpoints for channels 1±16, and V17 ± V32 contain the high alarm setpoints for channels 1±16. See Figure 3-7.

V1	100	V17	20,100
V2	200	V18	20,200
V3	300	V19	20,300
V4	400	V20	20,400
V5	500	V21	20,500
V6	600	V22	20,600
V7	700	V23	20,700
V8	800	V24	20,800
V9	900	V25	20,900
V10	1000	V26	21,000
V11	1100	V27	22,000
V12	1200	V28	23,000
V13	1300	V29	24,000
V14	1400	V30	25,000
V15	1500	V31	26,000
V16	1600	V32	27,000

Figure 3-7 Sample Low and High Alarm Setpoints

2.By monitoring the state of the Module_Ready flag, data is moved to the WY output registers. See Figure 3-8.

MOVW

A V1

B WY65

X16N=32C1

Module_Ready

Figure 3-8 The Module_Ready Bit

3-12 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 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