Apollo IMY Module #4 Program Digital Filter and Remote Input, Program Digital Filtering

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MODULE #4 - PROGRAM DIGITAL FILTER AND REMOTE INPUT

PROGRAM DIGITAL FILTERING

If the displayed process signal is difficult to read due to small process variations or noise, increased levels of filtering will help to stabilize the display. This programming step may be used in conjunction with display rounding programming (Pro 1 & 2) to help minimize this effect. Although the digital filter features a “moving window” to help minimize response time, higher degrees of filtering levels will have slightly longer response times.

“FILter” < > “0” - no digital filtering “1” - normal filtering “2” - increased filtering “3” - maximum filtering

PROGRAM FUNCTION OF E1-CON AND OPTIONAL E2-CONThe function of the remote input “E1-CON” (TBA #4) and, if the totalizer option is installed, the remote input “E2-CON” (TBA #8) are the same. Functions are activated, as described in the appropriate function, when connected to signal common (TBA #7). Whether a function is edge or level activated, it must be held low for a minimum of 20 msec in order for the function to occur. The remote input pins can be used simultaneously and with any combination of functions. When pins are tied together and activated,

E1-CON function is generally performed first.

“E1-CON”< > “0” - If the Totalizer/Peak/Valley/Display Offset option is installed, a negative going edge offsets the displayed temperature to zero. (At the time the E-Pin is activated, the value of the actual temperature being displayed is placed in the location of the display offset value. To bring the unit into the normal temperature display mode, reset the offset value to zero via the front panel.)

“1” - A negative going edge resets the contents of the totalizer to zero. Totalization commences regardless of the state of the remote input.

“2” - A negative going edge resets the contents of the totalizer to zero and allows totalization as long as the input is low. If the input goes high, totalization is stopped and the contents are saved. This acts as a

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totalization enable control from Time 1 to Time 2. “3” - A low level allows totalization as long as the input is

low. If the input goes high, totalization is stopped and the contents are saved. This acts as a totalization enable control from Time 1 to Time 2.

“4” - A low level holds the display (display hold). While this input is low, the indicator continues to process the input signal and drive the alarms, totalizer, etc., with the actual signal. The contents of the totalizer are held at the same time the input display is held.

Note: If display hold is activated, and input value is requested via serial, the value on the display will be sent instead of the actual input value at that time.

“5” - A negative going edge resets both peak and valley buffers. Note: If P/V is called up, a change will not appear on the

display until the next time the P/V is called up.

“6” - A negative going edge resets only the peak buffer and the indicator enters a peak reading display mode as long as the input is low. If the input goes high, peak detection and indication are stopped and the last peak reading is retained.

“7” - A negative going edge resets only the valley buffer and the indicator enters a valley reading display mode as long as the input is low. If the input goes high, valley detection and indication are stopped and the last valley reading is retained.

“8” - If the alarm option is installed, a negative going edge resets the latched alarm(s).

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Contents Apollo Intelligent Meter Series Introduction Table of Contents Page Safety Summary Safety InformationDefinition of Terms Theory of Operation General DescriptionBlock Diagram Programming the IMY Programming and Operating the IMYDisplay Module #2 Program Temperature Display Offset and Slope Enter Alarm Values Display Alarm ValuesReset Latched Alarms Reset PEAK/VALLEY Memory BufferEnter Offset Value Temperature Offset ValueProgram Digital Filtering Module #4 Program Digital Filter and Remote InputProgram Function of E1-CON and Optional E2-CON Cont’d Program Decimal Point Position for the INTEGRATOR/TOTALIZER Module #5 Program INTEGRATOR/TOTALIZERProgram INTEGRATOR/TOTALIZER Time Base Module #6 Program ALARM/SETPOINT Program Value for Alarm #2 Alarm #2 Assignment to Input or INTEGRATOR/ TotalizerAlarm #2 High or LOW Acting Unit Address Number Baud RatePrint Request Function Full or Abbreviated TransmissionAnalog Output Source Module #8 Program RE-TRANSMITTED Analog OutputAnalog Output LO Display Value Analog Output HI Display ValueEnter Access Code Module #9 Service OperationsEnter Zero Reference Apply Precision ResistanceQuick Programming Operating the IMYSlope Factory ConfigurationProgramming Example Temperature Monitoring Example INTEGRATOR/TOTALIZER Offset and Slope Display TemperaturePEAK/VALLEY Basic SET-UP INTEGRATOR/TOTALIZER ExampleINTEGRATOR/TOTALIZER SET-UP 125 x 827 Alarm Timing Diagrams Alarms OptionalCommunication Format General DescriptionCommand String Examples Sending Commands to the IMYTiming Diagrams Wiring Connections Current Loop InstallationReceiving Data from the IMY Serial Terminal DescriptionsSerial Communications Examples Connecting to AN RLC PrinterProcess Controlling System RE-TRANSMITTED Analog Output Optional To 20 mA Calibration Analog Output CalibrationInstallation Environment Appendix a Installation & ConnectionsSelect AC Power 115/230 VAC EMC Installation Guidelines Power Wiring Wiring ConnectionsOpen Thermistor Detection Display Ululul Appendix B Specifications and DimensionsTo 20 mA Certifications and Compliances Safety Problem Possible Cause Remedies Appendix C Troubleshooting GuideDecimal Point Positon Appendix D Programmable FunctionsAppendix D Programmable Functions Cont’d E2-CON Appendix E Ordering InformationLimited Warranty IMY/IM-A 3/02 Drawing NO. LP0311
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