1.5.3 Firmware Uploads

When new firmware is available for your C4, you can easily upload it into the controller using the controller’s serial port. The procedure requires only a diskette bootable PC and a serial cable and takes only about ten minutes. Firmware updates, when available, may be obtained on diskette for a fee from Sigma Systems or for free by download from www.SigmaSystems.Com or ftp.SigmaSystems.Com. See Section 3.2.2

1.5.4 Forced Start from PROM Firmware

The controller can be started from the original firmware version that is stored in the PROM. Uploaded versions are stored in flash memory. If a firmware upload session should go astray somehow, this feature allows the controller to still operate. See Section 9.7.8.

1.5.5 Front Panel Information Display at Startup

The controller model is displayed at startup - See Section 3.1.1

The firmware version number is displayed at startup - See Section 3.1.1 The operating range may be displayed at startup - See Section 3.1.2 The controller serial number may be displayed - See Section 3.1.3

1.5.6 Temperature Out of Range Shutdown

The controller now stores the operational limits for itself, the controlled device (Sigma chamber or platform), and the unit under test (UUT). The operating temperature is checked against these limits, if it is too far outside these limits,. the system is shutdown with an appropriate error message displayed. See Section 3.5.

C4 Manual Rev 7.5.2

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Sigma C4 manual Firmware Uploads Forced Start from Prom Firmware