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15

…4.2

Set Up Totalizer

4

ADVANCED CONFIGURATION LEVEL…

Cut-off Level
Set the lowest value at which the totalizer is to stop counting (in engineering units).

Example – On differential pressure flow, the inaccuracy of the system at very low flow rates may
cause large accumulative totalizer errors due to erroneous counts. If a cut-off level is set above
the point where these erroneous counts occur they are ignored.

Preset Value
If the

OPERATOR LEVEL

(batch) flow total is reset it reverts to the value set at this frame.

Set the value for the first digit using the

/

switches. The value is changed by using the

switch to advance the flashing cursor (

_

) and altering each digit in turn.

Advance to next digit.

/

Set the value for the second digit.

Advance to next digit.

Repeat the above procedure for the remaining digits.

Note. The setting of the

Preset

and

Predetermined Values

is dictated by the

Count Direction

:

CNtdIr-UP

(incremental counter) –

Preset Value

<

Predetermined Value

CNtdIr-dN

(decremental counter) –

Preset Value

>

Predetermined Value

.

Predetermined Value
If the wrap-around facility is used (see below), the front panel total is automatically reset to the

Preset Value

once the

Predetermined Value

is reached. If the wrap-around facility is not used, the

front panel total stops when the

Predetermined Value

is reached.

Set the value for the first digit using the

/

switches. The value is changed by using the

switch to advance the flashing cursor (

_

) and altering each digit in turn.

Advance to next digit.

/

Set the value for the second digit.

Advance to next digit.

Repeat the above procedure for the remaining digits.

Continued on next page

•

Totalization

PrESEt
tOtL –

PrEdEt

9999
9999

tOtL –

0000
0000

0

CUtOFF

Preset Value

Predetermined Value

Wrap Pulse Transmitted

Count Up

0045

0000

0000

0000

Wrap Off

Wrap Off stops counting

at Predetermined Value.
Wrap Pulse transmitted.

Predetermined

Value

Count Down

0085

0000

0000

0000

Preset Value

Wrap Pulse
Transmitted

Resets To

Preset Value

Predetermined

Value

Wrap On

Preset Value

Wrap On resets to Preset

Value once Predetermined

Value is reached. Wrap

Pulse transmitted.

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Содержание COMMANDER 1900 Series

Страница 1: ...User Guide Advanced Software Options COMMANDER 1900 Series Circular Chart Recorders COMMANDER 1900 100 3 198 5 dEGF OP54 5 200 5 50 8...

Страница 2: ...nditions result in degraded process system performance leading to personal injury or death Therefore comply fully with all Warning and Caution notices Information in this manual is intended only to as...

Страница 3: ...g the Engineering Flow Rate 12 4 1 2 Calculating the Count Rate High 12 4 2 Set Up Totalizer 14 Maths 5 ADVANCED CONFIGURATION LEVEL 17 5 1 Introduction to Maths 17 5 1 1 Standard Maths Block 17 5 1 2...

Страница 4: ..._ Soak Time Adjust SK AdJ ______ Run Hold Source r hSrc ______ Reset Enable rESEt ______ Skip Enable SKIP ______ SKIP b ______ Self Seeking S P SS SPt ______ Retort rEtOrt ______ Ramp Soak Profile Pro...

Страница 5: ...sary delays when a program is started see Fig 2 5 Retort function ensures safe operation under fault conditions see Fig 2 6 Power recovery function determines ramp soak profile restart position on ins...

Страница 6: ...Soak Adjust function allows the Soak time of a segment to be extended or reduced by a value preset in the Soak Adjust frame in the Ramp Soak Profile Control Page The soak time can be adjusted repeated...

Страница 7: ...e Power Down Recovery Function is only available on instruments fitted with the Timer option The Power Recovery function allows pre selection of the restart position within a ramp soak profile when po...

Страница 8: ...ctivate program run hold The run hold source is level triggered i e the active logic state must be maintained to select the alternative function If a program is activated or placed into operator hold...

Страница 9: ...he Profile States Page OPERATOR LEVEL Skip Enable Select ENBL Y to enable or ENBL N to disable the Skip Segment frames in the Profile States Page OPERATOR LEVEL Self Seeking Set Point If ON is selecte...

Страница 10: ...ss an intermediate spacer segment is used Segment End Value Set the segment end value If segment start end values are the same Soak advance to the Soak Time frame If segment start end values are diffe...

Страница 11: ...The value set applies above and below the Process Variable Setting 0 turns off the holdback hysteresis function A guaranteed ramp or soak is a segment whose time is counted only if the process variabl...

Страница 12: ...total 1 Total 1 external counter drive Wrap around and count only available if totalizer option fitted MAN x AUtO x Control mode selected for controller 1 or 2 Manual control Automatic control 2Nd x...

Страница 13: ...Rate D P dEC Pt ____ Count Rate Low CNt LO ____ CUtOFF ____ PrESEt tOtL _ Reset Controls Stop Go Controls rESEt ______ rSt SrC ______ Reset Source StOPGO ______ Stop Go Source SG SrC ______ Set Up Cl...

Страница 14: ...their own power supplies can be driven using 4 relay and digital output module options 4 1 1 Converting the Engineering Flow Rate Example A and B To calculate the count rate high the engineering flow...

Страница 15: ...2500 0 Preset Value Predetermine d Value Preset Predetermine d Count Count Up 9999 0000 0000 Count Rate High Low CNt HI 06 94 CNt LO 0000 Count Direction Preset Value Predetermine d Value Count Up Wra...

Страница 16: ...e right Secure Reset The Secure Total may be reset to either 00000000 or 99999999 depending on the count direction if required Select YES to reset the counter or NO to retain the current counter value...

Страница 17: ...termined Value CNtdIr dN decremental counter Preset Value Predetermined Value Predetermined Value If the wrap around facility is used see below the front panel total is automatically reset to the Pres...

Страница 18: ...itted when the Predetermined Value is reached Reset Enable Select ENBL Y to enable or ENAbL N to disable the counter reset frame in the Totals Page OPERATOR LEVEL Reset Source Select the digital sourc...

Страница 19: ...end The example below shows the construction of a maths block for the following equation 5 ADVANCED CONFIGURATION LEVEL Maths Element 1 Constant 8 Constant 1 Maths Block 4 Maths Block 1 Input 6 Input...

Страница 20: ...essure input source T Temperature temperature input source Tr Reference temperature for the scaling constant used Pr Reference pressure for the scaling constant used The temperature units used by the...

Страница 21: ...sition F B 1 Remote S P 1 Local S P 1 Process Variable 1 Input A Input t Constant 8 Constant 1 Maths Block 4 Maths Block 1 Input 6 Input 1 Channel 1 2 Output Channel 1 2 Output cool Channel 1 2 Output...

Страница 22: ...ition F B 1 Remote S P 1 Local S P 1 Process Variable 1 None Input a Input t Constant 8 Constant 1 Maths Block 4 Maths Block 1 Input 6 Input 1 Channel 1 2 Output Channel 1 2 Output cool Channel 1 2 Ou...

Страница 23: ...erage reset signal 5 1 5 Real Time Average The real time average function averages a continually varying input over a set time scale between 1 and 1440 minutes 24 hours Any process variable remote set...

Страница 24: ...ock Function Select the maths block function required AVErGE Averages a continually varying input over a set period of time LO VAL Holds minimum value measured on input variable HI VAL Holds maximum v...

Страница 25: ...nt 4 operator 2 Select the operator required for element 4 For description of operators refer to Maths Block n Element 2 frame Maths Block n Element 5 operand 3 Select the source required for element...

Страница 26: ...Return to Select Maths Function frame Maths High low Input Select the variable source whose minimum or maximum value is to be detected For a description of input output sources refer to Table 5 1 on p...

Страница 27: ...e Temperature Decimal Point Set the number of decimal places required for the reference temperature 0 to 3 places Pressure Input Select the process variable source required for the pressure input Pres...

Страница 28: ...3 Process variable 4 Process variable 3 PFb 1 rSP 1 2 SP 1 LSP 1 SP 1 PV 1 NONE No source required Position Feedback 1 Remote set point 1 Local set point 1 Set point 1 Process variable 1 Heat cool on...

Страница 29: ...et point If the maths result is to be assigned to a process variable or remote set point it is necessary to set up fault detection levels broken sensor actions and an engineering range high low in the...

Страница 30: ...on specific days hours or minutes for an exact period of time Timer ON OFF states can be used to energize relay outputs acknowledge alarms stop the chart select auto manual control modes and local rem...

Страница 31: ...isabled on hour set to All on minute set to 20 minutes duration in hours set to 0 hours duration in minutes set to 40 minutes Relay On Monday 00 20am Relay Off 01 00am 01 20am 02 00am 02 20am 03 00am...

Страница 32: ...Select ON to enable or OFF to disable Tuesday Enable Repeat as above for Tuesday to Sunday On Hour Set the hour at which the timer becomes active If ALL is selected the timer becomes active every hour...

Страница 33: ...day and time are correct in the above frames select NO to return to the Set Up Clock frame To set the clock s date day or time select YES Year Set the year Month Set the month Date Set the date Day S...

Страница 34: ...32 NOTES...

Страница 35: ...ion pH conductivity and dissolved oxygen transmitters and sensors ammonia nitrate phosphate silica sodium chloride fluoride dissolved oxygen and hydrazine analyzers Zirconia oxygen analyzers katharome...

Страница 36: ...notice ABB 2001 Printed in UK 02 01 ABB Automation Ltd Howard Road St Neots Cambridgeshire PE19 8EU UK Tel 44 0 1480 475 321 Fax 44 0 1480 217 948 ABB Automation Inc 125 E County Line Road Warminster...

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