SIGMA SYSTEMS C4 Manuale del proprietario

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C4 Manual Rev 7.5.2

SIGMA SYSTEMS

MODELS C4 & CC-3.5

PROGRAMMABLE TEMPERATURE CONTROLLER / INTERFACE

OPERATING & PROGRAMMING MANUAL

Firmware Version 7.5.2

Manual Revision 4

June 3, 1999

SIGMA SYSTEMS CORPORATION

1817 John Towers

San Diego, California 92116 USA

TEL: (619) 258-3700 WWW.SigmaSystems.Com FAX: (619/258-3712)

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

C4 Manual Rev 7.5.2

Sigma Systems Corporation

1817 John Towers

El Cajon, California 92020 USA

The manual may be reproduced, in whole, or in part, solely for the purposes of use

and training for the use, of Sigma Systems equipment, or as required to assist in the

sale of new Sigma Systems equipment. No modification of the content is permitted.

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C4 Manual Rev 7.5.2

TABLE OF CONTENTS

1. INTRODUCTION ................................................. 9

1.1 Models C4 & CC-3.5 Explained ................................. 9

1.2 General Description ........................................ 10

1.3 Custom Features / Interchangeability WARNING .................. 11

1.4 Release7.5.2Firmware ..................................... 11

1.5 C4 vs.CC-3Differences(What’sNew)......................... 12

1.5.1 Hardware & Stability Improvements ..................... 12

1.5.2 Hardware Change (EEPROM replaces BBSRAM) .......... 12

1.5.3 Firmware Uploads ................................... 13

1.5.4 ForcedStartfromPROMFirmware ..................... 13

1.5.5 Front Panel Information Display at Startup ................ 13

1.5.6 Temperature Out of Range Shutdown ................... 13

1.5.7 Internal Error Shutdown Conditions ..................... 14

1.5.8 Fahrenheit Temperature Scale Supported ................ 14

1.5.9 Temperature Probe Correction (Calibration) ............... 14

1.5.10 “Bumpless”TemperatureControl ...................... 14

1.5.11 Intelligent 2 Probe Control (Probe Averaging) ............ 15

1.5.12 DefaultSetupParametersRestore..................... 16

1.5.13 Program Mode Step Insert & Delete .................... 16

1.5.14 Program Mode Any Step Points to Step 100 ............. 16

1.5.15 Program Mode Safer Program Clear ................... 16

1.5.16 Program Mode Run Time Program Pre-check ............ 16

1.5.17 Remote Mode EIA-232 Baud Rate Improvement .......... 16

1.5.18 Remote Mode EIA-232 Port Initialization ................ 17

1.5.19 Remote Mode Fault Tolerant Parser .............. 17

1.5.20 Remote Mode System Information Queries .............. 17

1.5.21 Remote Mode Operation Information Queries ............ 17

1.5.22 Remote Mode Setup Parameter Commands ............. 18

1.5.23 Remote Mode IEEE-488 (GPIB) Monitoring .............. 18

1.5.24 Setup Mode Easier Parameter Access .................. 18

2. PHYSICALDESCRIPTION......................................... 19

2.1 Front Panel ............................................... 19

2.1.1 DigitalLEDDisplay.................................. 19

2.1.2 LEDIndicators ..................................... 19

2.1.3 Mode Switch ....................................... 20

2.1.4 Keyboard ......................................... 21

2.2 Rear Panel Connections .................................... 22

3. GENERALOPERATION&ERRORCONDITIONS ...................... 23

3.1StartupDisplays ........................................... 23

3.1.1 Model Number and Firmware Version Number Display ...... 23

3.1.2 Temperature Range Display ........................... 23

3.1.3SerialNumberDisplay................................ 24

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4C4 Manual Rev 7.5.2

3.2 Updating Firmware .........................................24

3.2.1 UpgradingFirmwarebyPROMReplacement ..............25

3.2.2 Upgrading Firmware by Uploading through C4 Serial Port ....25

Making the physical connection for upload ................26

Running the upload software on the PC ..................26

Starting the upload on the C4 ..........................27

3.3 RestoringSetupParameterstoDefaultValues....................27

3.4 Fahrenheit Operation .......................................28

3.5 System Operating (Temperature) Range ........................29

3.6 Probe Out of Range Shutdown ................................29

3.6.1 Effect of Probe Correction on Out of Range Shutdown .......30

3.6.2 Probe Out of Range Shutdown Reported in Error/Status String

.................................................30

3.6.3 Clearing a Probe Out of Range Shutdown ................30

3.7 Internal Error Shutdown Conditions ............................31

3.7.1 Watchdog Timer ....................................31

3.7.2 Memory signature checking ...........................31

3.7.3 Setupparameterintegritychecking......................32

3.8 Software Probe Correction (Calibration) .........................32

3.9 Status and Error Reporting ...................................33

3.10 Fail-safeSystem ..........................................34

4. INTELLIGENT2PROBECONTROL..................................35

4.1 How Intelligent 2 Probe Control functions ........................36

4.2 Preparing for Intelligent 2 Probe Control ........................37

4.3 Using Intelligent 2 Probe Control ..............................38

5. LOCALMODE (BasicOperation) ...................................39

5.1 DisplayingTemperature .....................................39

5.2 Displaying and Changing the Setpoint ..........................40

5.3 ControllingtoaSetpoint .....................................41

5.4 CompressorControl ........................................42

6. PROGRAMMODE ...............................................43

6.1 DescriptionofaProgramStep ................................43

6.1.1 FormatofaProgramStep.............................44

6.1.2 Maximizing Ramp Speed & Other Ramp Considerations .....45

6.2 ClearingProgramMemory(Reinitializingprogramsteps)............46

6.3 DisplayingProgramSteps....................................46

6.4 Entering or Changing a Program Step ..........................47

6.5 InsertProgramStep ........................................47

6.6 DeleteProgramstep........................................48

6.7 Running (Executing) a Program ...............................48

6.7.1 ProgramRunTimeInformation/Considerations ............49

6.7.2 Run Time Pre-read Errors .............................49

No Probe 2 Error ...................................50

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C4 Manual Rev 7.5.2

Invalid Loop Count Error ............................. 50

Setpoint Out of Range Error .......................... 50

6.8 Special Commands ........................................ 50

6.8.1 Controlled Program Looping ........................... 51

6.8.2 ExternalCompressorOn ............................. 52

6.8.3 ExternalCompressorOff ............................. 52

6.8.4 Optional Aux/Power Control Port On .................... 52

6.8.5 Optional Aux/Power Control Port Off .................... 52

6.9 CommonProgrammingIssues................................ 53

6.9.1 StepNumbering .................................... 53

6.9.2 Changing Substep Values ............................ 53

6.9.3 ControlPorts....................................... 53

7. REMOTEMODE................................................. 55

7.1 EIA-232 Interface .......................................... 55

7.2 IEEE-488 Interface ......................................... 55

7.3 Command Summary (by functional group) ....................... 56

7.4 SystemInformationQueries.................................. 57

7.4.1 QVQueryFirmwareVersion........................... 57

7.4.2 QNQueryControllerSerialNumber..................... 57

7.4.3 QR Query Controller Temperature Range ................ 58

7.4.4 QS Query Setpoint & Control Probe Number .............. 58

7.4.5 QF,QFA QuerySetupParameterValue ................ 59

7.5 Operation Information Queries & Commands .................... 61

7.5.1 RS, RSA Request Status Byte ......................... 61

7.5.2 RE, REA Request Error Byte .......................... 61

7.5.3 QE,QEA QueryError/StatusString..................... 62

7.5.4 QC QueryLastCommand............................ 64

7.5.5 ES Enable SRQ (Status Request Mode) ................. 64

7.5.6 DS DisabletheSRQ ................................ 64

7.5.7 PT Read Temperature ............................... 65

7.6 Setup Parameter Commands ................................. 66

7.6.1 SC Set Probe Correction ............................. 66

7.6.2 WP SetPIDConstants .............................. 67

7.6.3 BF & BO Blower Off & Blower On Commands ............ 68

7.6.4 SL SetUUTTemperatureLimits ....................... 69

7.6.5 SD SetUUTTemperatureDifferentialLimits.............. 69

7.6.6 UP WriteCurrentParameterstoNVMemory ............. 69

7.7 System Operation Commands ................................ 70

7.7.1 SI SelectImmediateMode............................ 70

7.7.2 SP SelectProgramMode ............................ 70

7.7.3 PN SelectActive(control)Probe ....................... 70

7.7.4 GT,GTF GoToTemperature ......................... 71

7.7.5 RA,RAF RamptoTemperature ....................... 71

7.7.6 DLDelay(DwellInterval) ............................. 72

7.7.7 CO&CF TurntheRefrigerationPortOn................. 72

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6C4 Manual Rev 7.5.2

7.7.8 TO&TF TurnAux/PowerControlPortOn................72

7.7.9 QU Quit Controlling .................................73

7.8 Error and Status Reporting - Overview ..........................74

7.8.1 StatusByte ........................................74

7.8.2 ErrorByte .........................................75

7.8.3 Error/StatusString...................................75

Error/StatusStringBitDefinitions.......................77

8. SETUPMODE...................................................79

8.1 DisplayingtheFieldValues...................................81

8.2 Changing the Value of a Setup Field ............................82

8.3 Two Probe Mode ...........................................82

8.4 Auto-startMode ...........................................82

8.5 BlowerShut-offMode .......................................83

8.6 TemperatureControlTerms(PID)(Setupfields0,10,11,12) ........83

8.7 Software Probe Correction (Calibration) .........................83

Entering probe correction setup data ....................84

9. APPENDIX ......................................................87

9.1 ProgrammingExamples&Notes ..............................87

9.1.1 SimpleLocalProgramExample ........................87

9.1.2 Usingshortcutstoshortenprogramentrytime .............89

9.1.3 Local Program Example Using the Special Commands ......91

9.2 Keeping More than One Program in Memory .....................93

9.3 Sigma Systems C4 Programming Worksheet .....................95

9.4 Sample Command Structure for IEEE-488 GPIB Operation ..........96

9.5 Installation and Use of TTL Outputs and Input ....................98

9.6 Field Calibration of Model C4 Controller .........................99

9.7 Troubleshooting ..........................................101

9.7.1 ServicingConsiderations-ServiceWARNINGS...........101

9.7.2 Beforeyougoanyfurther..............................101

9.7.3 Diagnosing and Solving Hardware Problems .............101

9.7.4 NoiseImmunity ....................................102

9.7.5 Diagnosing and Solving Local Mode Problems ............102

ControllerstartsimmediatelyinLocalMode..............102

9.7.6 Diagnosing and Solving Program Mode Problems .........102

Hard Loops .......................................102

ExplicitProgramEnd ...............................103

Blowers Misbehaving ...............................103

Program hangs on Ramp as Quickly as Possible step ......103

9.7.7 Diagnosing and Solving Remote Mode Problems ..........103

EIA-232 Problems .................................104

GPIB IEEE-488 Problems ...........................104

9.7.8 Firmware Upload Problems ...........................104

StartingtheC4fromPROMbasedfirmware .............105

COMportissues...................................105

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C4 Manual Rev 7.5.2

9.8 TemperatureControl (PID)Tuning&Problems.................. 105

Adjusting for changing needs ......................... 106

The Proportional Term .............................. 107

TheIntegralTerm ................................. 107

TheDifferentialTerm............................... 108

9.9 Displayed Messages and Errors Table ......................... 109

9.10 Technical Support, Repairs & Returns ........................ 110

INDEX .......................................................... 111

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8C4 Manual Rev 7.5.2

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C4 Manual Rev 7.5.2

1. INTRODUCTION

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

& CC-3.5 Controllers, microprocessor based controllers and control communications

interfaces for the family of Sigma Systems temperature chambers and thermal

platforms.

1.1 Models C4 & CC-3.5 Explained

The models C4 & CC-3.5 controllers 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-3.5 is 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-3.5 also 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-3.5 controllers are only

available as the product of upgrading a CC-3 controller.

From a functional perspective, models C4 & CC-3.5 are 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-3.5

upgrade 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-3.5

controller. In the event that there is a difference between

the two models, that difference will be explicitly detailed.

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