Sigma C4 manual Setup Parameter Commands

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7.6 Setup Parameter Commands

The commands in this section allow a user to change the value of some of the setup parameters that are stored in SRAM and used by Remote mode. The SRAM copy of the setup parameters is created upon entry to Remote mode from the non- volatile copy that is kept in EEPROM for use by Local and Program modes.

The commands listed in this section change only the SRAM working copy of the setup parameters. To save these values in the non-volatile EEPROM setup parameter tables, use the UP command (See Section 7.6.6).

If any of the setup parameter values in SRAM have been modified by Remote mode commands, they will not be the same as the non volatile EEPROM copies unless an UP command was subsequently used to copy the SRAM values to the setup parameter tables in EEPROM. Upon exiting Remote mode, including by system reset or by power loss, the SRAM values are discarded. Each time Remote mode is entered a new copy of the EEPROM setup parameter values is read into SRAM as a working copy.

7.6.1 SC Set Probe Correction

A complete discussion of the probe correction entries is in Section 8.7. Read that section carefully before using this command.

WARNING: Incorrect usage of this command may cause temperature control to be effected with invalid data and may result in unexpected temperature excursions that can cause harm to personnel and damage to equipment.

The SC command writes the data for either probe 1, or probe 2, to setup parameter fields F17-F20 or F21-F24 respectively. The data for all 4 parameters used to correct one probe must be sent with the command.

Software probe correction is achieved by entering four temperatures, U1, C1, U2,

&C2, for each probe into the setup parameter table. U1 & U2 are the uncorrected, or displayed, temperatures at two points. C1 & C2 are the corrected, or actual, temperatures at those same two points.

Values for probe correction should be entered in the current scale, /C or /F, as set in setup parameter F16. There is no difference in the command syntax for Fahrenheit operation, so it is incumbent upon the user to use the correct values.

68	C4 Manual Rev 7.5.2

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Contents Programmable Temperature Controller / Interface Sigma SystemsC4 Manual Rev Table of Contents Intelligent 2 Probe Control C4 Manual Rev C4 Manual Rev C4 Manual Rev C4 Manual Rev Introduction Models C4 & CC-3.5ExplainedGeneral Description Custom Features / Interchangeability Warning Release 7.5.2 FirmwareC4 vs. CC-3 Differences What’s New Firmware Uploads Forced Start from Prom Firmware Internal Error Shutdown Conditions Intelligent 2 Probe Control Probe Averaging Program Mode Step Insert & Delete RSA Remote Mode Setup Parameter Commands Physical Description Front PanelMode Switch Clear Prog Rear Panel Connections J1 TOPGeneral Operation & Error Conditions C3-5 Rel200 100c 392 148f Startup DisplaysUpdating Firmware Upgrading Firmware by Prom Replacement Making the physical connection for upload Restoring Setup Parameters to Default Values Rs loadSu res Ee busy and then su doneC4 Manual Rev P1f Fahrenheit OperationProbe Out of Range Shutdown System Operating Temperature RangeP1 lo P1 hi P1 err P1 -err All res Internal Error Shutdown ConditionsRes err Su err Software Probe Correction CalibrationStatus and Error Reporting Fail-safe System C4 Manual Rev Intelligent 2 Probe Control How Intelligent 2 Probe Control functions Preparing for Intelligent 2 Probe Control Using Intelligent 2 Probe Control Local Mode Basic Operation Displaying TemperatureDisplaying and Changing the Setpoint S1 102.6 s1fS1 nsp S1f nsp Controlling to a Setpoint Sor -sorSp err C4 Manual Rev Description of a Program Step Program Mode06.0 Substep Step Data 00.0 00.1Ramp time 00.2Maximizing Ramp Speed & Other Ramp Considerations Clearing Program Memory Reinitializing program steps Displaying Program Steps not during executionPress CLEAR/ENTRY Entering or Changing a Program StepInsert Program Step Running Executing a Program Delete Program stepPress CLEAR/ENTRY Press CLEAR/ENTRY again Program Run Time Information/Considerations 005 sor Sor 007 nop2Loop Special Commands External Compressor On Common Programming Issues C4 Manual Rev IEEE-488 Interface Remote ModeEIA-232 Interface Command Summary by functional group System Information QueriesSystem Information Queries For Celsius mode For parameters numbered 0 through C4 Manual Rev Operation Information Queries & Commands REerror byteCRLF C4 Manual Rev Qccrlf PTnCRLF Setup Parameter Commands SC1 0 2.3 100 WP 6 5 5CRLF Upcrlf System Operation Commands Celsius mode Will hold the current setpoint for 1 hour and 20 minutes U1c 65.0 u1f Error and Status Reporting Overview IEEE-488 GpibTemperature in 20 minutes C4 Manual Rev Error/Status String Bit Definitions C4 Manual Rev Setup Mode PID controller, Integral term Adjustment not Displaying the Field Values Auto-start Mode Setup field Changing the Value of a Setup FieldTwo Probe Mode Setup field Blower Shut-off Mode Setup field Temperature Control Terms PID Setup fields 0, 10, 11Entering probe correction setup data C4 Manual Rev C4 Manual Rev Appendix Programming Examples & Notes00.0 00.200.3 00.4Using shortcuts to shorten program entry time 9900 DISP/CNTLSTART/STOPCLEAR/ENTRY 6 Enter 04.0 04.204.3 04.407.0 07.207.3 07.4C4 Manual Rev Sigma Systems C4 Programming Worksheet Sample Command Structure for IEEE-488 Gpib Operation Disp A$ Installation and Use of TTL Outputs and Input Field Calibration of Model C4 Controller 101102 Troubleshooting 103Noise Immunity 105 Firmware Upload Problems Temperature Control PID Tuning & Problems 107108 109 110 111 U1f 102.7 Technical Support, Repairs & ReturnsIndex 113114 Gpib 115IEEE488 Gpib 117 118 SRQ 119120