Sigma manual Introduction, Models C4 & CC-3.5Explained

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1. INTRODUCTION

This manual describes the operating procedures for the Sigma Systems Models C4

&CC-3.5Controllers, microprocessor based controllers and control communications interfaces for the family of Sigma Systems temperature chambers and thermal platforms.

1.1 Models C4 & CC-3.5Explained

The models C4 & CC-3.5controllers are successors to the model CC-3.

The model C4 is a completely redesigned controller that uses a completely different and more modern set of internal components with a new processor and completely new firmware. Model C4 controllers are only available as new products from Sigma Systems.

The model CC-3.5is a hybrid upgrade controller that uses only the digital circuitry of the model C4. It is made by substituting the C4 digital p.c. board (known within Sigma Systems as the “CPU board”, or the “A” board) for the CC-3's “A” board. The upgrade from CC-3 to CC-3.5also includes a few small modifications to other internal components. The power supply, power switching, analog, and front panel components of the CC-3 remain. Model CC-3.5controllers are only available as the product of upgrading a CC-3 controller.

From a functional perspective, models C4 & CC-3.5are identical because all of the functionality of the controllers is defined by the processor, bus interface components, and firmware... all of which are integral with the C4 “A” board. The C4 analog and front panel components that remain unique to the C4 (not included in the CC-3.5upgrade from CC-3) provide slightly better accuracy and substantially better noise and static immunity.

For the balance of this manual, the term C4 will mean to include both the model C4 controller and the model CC-3.5controller. In the event that there is a difference between the two models, that difference will be explicitly detailed.

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 ConnectionsC3-5 Rel General Operation & Error Conditions200 100c 392 148f Startup DisplaysUpdating Firmware Upgrading Firmware by Prom Replacement Making the physical connection for upload Rs load Restoring Setup Parameters to Default ValuesSu res Ee busy and then su doneC4 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 00.1 Substep Step Data 00.0Ramp time 00.2Maximizing 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 Appendix00.2 00.000.3 00.4Using shortcuts to shorten program entry time DISP/CNTLSTART/STOP 9900CLEAR/ENTRY 6 Enter 04.2 04.004.3 04.407.2 07.007.3 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 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