Di function block parameters -20, Mai function block parameters -21 – Yokogawa Multi Channel Oxygen Analyzer System ZR22/AV550G User Manual

Page 39

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<5. CONFIGURATION>

5-20

IM 11M12D01-61E

2) PRIMARY_VALUE_2 (Relative Index is 17)

Type of measurement, for the AV550G this is 119 (oxygen).

3) PRIMARY_VALUE_3 (Relative Index is 21)

Type of measurement, for the AV550G this is 119(oxygen).

4) IN_UNIT (Relative Index is 27)

Specifies the units for MAO block channel input value USE_IN_NO (below).

For the AV550G, the following units are supported (if you want to display data in other units,

then you can display the data without a units display): 1001 (degC), 1002 (degF), 1130 (Pa),

1132 (MPa), 1133 (kPa), 1137 ( bar), 1138 (mbar), 1141 (psi), 1144 (g/cm2), 1145 (g/cm2), 1149

(mmH2O), 1157 (mmHg), 1342 (%), 1423 (ppm). Factory default: 1342 (%)

5) IN_DISPLAY_FORMAT (Relative Index is 28)

Specifies the decimal point position for MAO block channel input value USE_IN_NO (below).

This sets the format for all displays. If input data overflows the maximum, or underflows the

minimum, then the high or low limit settings will apply. The four possible display format/ range

settings are:

0: Display range [-9999 to 9999]

1: Display range [-999.9 to 999.9]

2: Display range [-99.99 to 99.99]

3: Display range [-9.999 to 9.999]

Factory default range setting: 0

6) USE_IN_NO (Relative Index is 29)

Selects which of the eight channels supported by MAO will be displayed on the AV550G. Factory

default channel setting: 1

5.6.6 DI Function Block Parameters

DI function block output 1 corresponds to Transducer block “Alarm”, and output 2 corresponds to

Transducer block “Error” switch signals.
MODE_BLK

Three block modes O/S, Auto, and Manual are supported. In O/S (Out of Service) mode the DI

function block does not operate. In Manual mode the value is not updated. In Auto mode the

measured value is periodically updated. The factory default mode setting for all DI blocks is O/S.
CHANNEL

This is a value from the transducer block that is connected to the DI block input.

For the AV550G, it’s set to 4 or 5.
PV_FTIME

This sets the damping time constant of the DI block.
DISC_PRI

Sets the priority of the block output (OUT_D) discrete alarm. If the value is 3 or greater then alarm

output is enabled. The factory default setting is 1.

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