115
C4 Manual Rev 7.5.2
Fail-safe System ................................................... 34
Firmware .................................................... 11, 101
COM port issues ............................................... 105
Firmware upload problems....................................... 104
Starting the C4 from PROM based firmware ........................ 105
Updating ...................................................... 24
Version number................................................. 23
GPIB ......................................................... 10, 55
Address ....................................................... 79
connector ...................................................... 22
Front panel lockout .............................................. 55
Improvements .................................................. 12
Sample command structure with examples........................... 96
GPIB port monitoring/reset .......................................... 18
GT, GTF Go to temperature.......................................... 71
Hardware problems ............................................... 101
Hold time ..................................................... 43, 72
IEEE-488 (See GPIB) ............................................... 10
Intelligent 2 probe control ........................................... 35
Interchangeability ................................................. 11
Internal error shutdown conditions.................................... 31
Keyboard ......................................................... 21
LED Indicators .................................................... 19
Line terminator ................................................... 55
Local mode .................................................... 10, 39
Local mode problems
Controller starts immediately in local mode ......................... 102
Loop Count Error .................................................. 50
Maximizing ramp speed ............................................. 45
Memory signature checking.......................................... 31
Message table .................................................... 109
Mode switch ...................................................... 20
Warning ....................................................... 20
Model Number .................................................... 23
No Probe 2 Error................................................... 50
Noise immunity .................................................. 102
Parser, fault tolerant ............................................... 17
PFS-2 Precision Fail Safe............................................ 22
PID ....................................................... 79, 80, 83
Adjusting for changing needs ..................................... 106
Discussion of PID constants and their use .......................... 105
The Differential Term ........................................... 108
The integral term .............................................. 107
The proportional term........................................... 107
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