Sigma C4 manual Program Run Time Information/Considerations

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6.7.1 Program Run Time Information/Considerations

When a program is running, the display shows the currently executing program step number on the left and the total amount of remaining run time for that step on the right. The time displayed is the sum of any remaining ramp time and/or hold time. The temperature may be displayed by pressing <DISP/TEMP> while the program is running. Pressing <DISP/CNTL> will restore the display of the current step number and the time left in the step.

Programs may be designed to run continuously by specifying the next step to be any previous step of the program. In this way, step 100, the end, is never reached. The program must then be stopped by the operator pressing the <START/STOP> key. Controlled looping is also possible. See 6.8.1.

Multiple programs may be stored in memory since a program may be started from any step and terminates with any step specifying 100 as its next program step. It is the operator's responsibility to keep a record of the beginning program step number for each program in memory.

6.7.2 Run Time Pre-read Errors

When a program is started by pressing <START/STOP> with the first step of the program displayed, the C4 will pre-read all the program’s steps in the run time execution sequence. During the pre-read, the C4 checks all steps for errors so that the user can solve any problems immediately rather than having them occur later, during program execution. The pre-read makes certain that the program to be run does not call for probe 2 use when only one probe is defined by setup parameter F1, that all loop commands contain valid loop counters, and that all setpoints requested are within the System Operating Range. In each case, if an error is found, the display will show the step number that contains the error on the left side of the display, and the error message on the right side.

Note that the pre-read will display the first error is finds. If there is more than one error, each successive error will be shown on the display after the last displayed error is corrected and a program start is again attempted.

C4 Manual Rev 7.5.2

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Contents Sigma Systems Programmable Temperature Controller / InterfaceC4 Manual Rev Table of Contents Intelligent 2 Probe Control C4 Manual Rev C4 Manual Rev C4 Manual Rev C4 Manual Rev Models C4 & CC-3.5Explained IntroductionGeneral Description Release 7.5.2 Firmware Custom Features / Interchangeability WarningC4 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 Front Panel Physical DescriptionMode Switch Clear Prog J1 TOP Rear Panel ConnectionsStartup Displays General Operation & Error ConditionsC3-5 Rel 200 100c 392 148fUpdating Firmware Upgrading Firmware by Prom Replacement Making the physical connection for upload Ee busy and then su done Restoring Setup Parameters to Default ValuesRs load Su resC4 Manual Rev Fahrenheit Operation P1fSystem Operating Temperature Range P1 lo P1 hiProbe Out of Range Shutdown P1 err P1 -err Internal Error Shutdown Conditions Res errAll res Software Probe Correction Calibration Su errStatus 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 Displaying Temperature Local Mode Basic OperationS1 102.6 s1f S1 nsp S1f nspDisplaying and Changing the Setpoint Sor -sor Sp errControlling to a Setpoint C4 Manual Rev Program Mode 06.0Description of a Program Step 00.2 Substep Step Data 00.000.1 Ramp timeMaximizing Ramp Speed & Other Ramp Considerations Displaying Program Steps not during execution Clearing Program Memory Reinitializing program stepsEntering or Changing a Program Step Insert Program StepPress CLEAR/ENTRY Delete Program step Press CLEAR/ENTRY Press CLEAR/ENTRY againRunning Executing a Program Program Run Time Information/Considerations 007 nop2 Loop005 sor Sor Special Commands External Compressor On Common Programming Issues C4 Manual Rev Remote Mode EIA-232 InterfaceIEEE-488 Interface System Information Queries Command Summary by functional groupSystem 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 IEEE-488 Gpib Error and Status Reporting OverviewTemperature 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 Changing the Value of a Setup Field Two Probe Mode Setup fieldAuto-start Mode Setup field Temperature Control Terms PID Setup fields 0, 10, 11 Blower Shut-off Mode Setup fieldEntering probe correction setup data C4 Manual Rev C4 Manual Rev Programming Examples & Notes Appendix00.4 00.000.2 00.3Using shortcuts to shorten program entry time DISP/CNTLSTART/STOP 9900CLEAR/ENTRY 6 Enter 04.4 04.004.2 04.307.4 07.007.2 07.3C4 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 101 Field Calibration of Model C4 Controller102 103 TroubleshootingNoise Immunity 105 Firmware Upload Problems 107 Temperature Control PID Tuning & Problems108 109 110 111 Technical Support, Repairs & Returns U1f 102.7113 Index114 115 GpibIEEE488 Gpib 117 118 119 SRQ120