Sigma C4 manual Error and Status Reporting Overview, IEEE-488 Gpib

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7.8 Error and Status Reporting - Overview

There are three sources for error and status information:

The Status Byte	CC-3 compatible
The Error Byte	CC-3 compatible
The Error/Status String
(64 bytes)	CC-3.5 & C4 only

7.8.1 Status Byte

The Status Byte is a one byte block of data in which each of the eight bits reports the status of an item. The bits in the Status Byte report the status of the following items:


BIT	EIA-232	IEEE-488 GPIB

7	Interval complete	Error

6	Error	SRQ set

5	Not used	Not used

4	Setpoint reached	Setpoint reached

3	Not used	Interval complete

2	Refer/compressor port status (0 off/1 on)

1	Aux/Power port status (0 off/1 on)

0	SRQ enabled (1), disabled (0)

Bits 0, 1, & 2, in the Status Byte are “state” driven and are not cleared when read. Each bit is set or reset by the state of the condition they report. The error bit in the Status Byte is cleared when the Error Byte in read and cleared with RE, REA, QE, or QEA. Setpoint Reached and Interval Complete are “event” triggered. Interval Complete is set when a timed delay or ramp time is completed. Setpoint Reached is set when the chamber or platform has stabilized at the setpoint. Both Interval Complete and Setpoint Reached are cleared when read.

76	C4 Manual Rev 7.5.2

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Contents Programmable Temperature Controller / Interface Sigma SystemsC4 Manual Rev Table of Contents Intelligent 2 Probe Control C4 Manual Rev C4 Manual Rev C4 Manual Rev C4 Manual Rev Introduction Models C4 & CC-3.5ExplainedGeneral Description Custom Features / Interchangeability Warning Release 7.5.2 FirmwareC4 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 Physical Description Front PanelMode Switch Clear Prog Rear Panel Connections J1 TOPGeneral Operation & Error Conditions C3-5 Rel200 100c 392 148f Startup DisplaysUpdating Firmware Upgrading Firmware by Prom Replacement Making the physical connection for upload Restoring Setup Parameters to Default Values Rs loadSu res Ee busy and then su doneC4 Manual Rev P1f Fahrenheit OperationP1 lo P1 hi System Operating Temperature RangeProbe Out of Range Shutdown P1 err P1 -err Res err Internal Error Shutdown ConditionsAll res Su err Software Probe Correction CalibrationStatus 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 Local Mode Basic Operation Displaying TemperatureS1 nsp S1f nsp S1 102.6 s1fDisplaying and Changing the Setpoint Sp err Sor -sorControlling to a Setpoint C4 Manual Rev 06.0 Program ModeDescription of a Program Step Substep Step Data 00.0 00.1Ramp time 00.2Maximizing Ramp Speed & Other Ramp Considerations Clearing Program Memory Reinitializing program steps Displaying Program Steps not during executionInsert Program Step Entering or Changing a Program StepPress CLEAR/ENTRY Press CLEAR/ENTRY Press CLEAR/ENTRY again Delete Program stepRunning Executing a Program Program Run Time Information/Considerations Loop 007 nop2005 sor Sor Special Commands External Compressor On Common Programming Issues C4 Manual Rev EIA-232 Interface Remote ModeIEEE-488 Interface Command Summary by functional group System Information QueriesSystem 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 Error and Status Reporting Overview IEEE-488 GpibTemperature 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 Two Probe Mode Setup field Changing the Value of a Setup FieldAuto-start Mode Setup field Blower Shut-off Mode Setup field Temperature Control Terms PID Setup fields 0, 10, 11Entering probe correction setup data C4 Manual Rev C4 Manual Rev Appendix Programming Examples & Notes00.0 00.200.3 00.4Using shortcuts to shorten program entry time 9900 DISP/CNTLSTART/STOPCLEAR/ENTRY 6 Enter 04.0 04.204.3 04.407.0 07.207.3 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 Field Calibration of Model C4 Controller 101102 Troubleshooting 103Noise Immunity 105 Firmware Upload Problems Temperature Control PID Tuning & Problems 107108 109 110 111 U1f 102.7 Technical Support, Repairs & ReturnsIndex 113114 Gpib 115IEEE488 Gpib 117 118 SRQ 119120