6C4 Manual Rev 7.5.2
7.7.8 TO & TF Turn Aux/Power Control Port On................ 72
7.7.9 QU Quit Controlling ................................. 73
7.8 Error and Status Reporting - Overview .......................... 74
7.8.1 Status Byte ........................................74
7.8.2 Error Byte ......................................... 75
7.8.3 Error/Status String................................... 75
Error/Status String Bit Definitions....................... 77
8. SETUP MODE................................................... 79
8.1 Displaying the Field Values................................... 81
8.2 Changing the Value of a Setup Field ............................ 82
8.3 Two Probe Mode ........................................... 82
8.4 Auto-start Mode ........................................... 82
8.5 Blower Shut-off Mode ....................................... 83
8.6 Temperature Control Terms (PID) (Setup fields 0, 10, 11, 12) ........ 83
8.7 Software Probe Correction (Calibration) ......................... 83
Entering probe correction setup data .................... 84
9. APPENDIX ...................................................... 87
9.1 Programming Examples & Notes .............................. 87
9.1.1 Simple Local Program Example ........................ 87
9.1.2 Using shortcuts to shorten program entry time ............. 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 Servicing Considerations - Service WARNINGS........... 101
9.7.2 Before you go any further.............................. 101
9.7.3 Diagnosing and Solving Hardware Problems ............. 101
9.7.4 Noise Immunity .................................... 102
9.7.5 Diagnosing and Solving Local Mode Problems ............ 102
Controller starts immediately in Local Mode.............. 102
9.7.6 Diagnosing and Solving Program Mode Problems ......... 102
Hard Loops ....................................... 102
Explicit Program End ............................... 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
Starting the C4 from PROM based firmware ............. 105
COM port issues................................... 105