4 tag and device information, 5 unit, 6 range change – Yokogawa EJX430B User Manual

Page 56: 7 output mode, Tag and device information -18, Unit -18, Range change -18, Output mode -18

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<8. Setting Parameters>

8-18

IM 01C27B01-01EN

NOTE

When the device detects AL01 and AL02, the

LCD display stays on regardless of the status

in LCD mode. See Table 9.3 and 9.4 Error

Message Summary for details.

8.3.4 Tag and Device Information

If these are specified when ordering, the designated

Tag No. and device information are set and

shipped. Tag No. and device information can be

checked as follows.

• Procedure to call up the tag No. and device

information
- Device Tag ( Software Tag )

This is specified when writing characters (up

to 16 characters) of amplifiers TAG that differ

from characters specified in Tag No.

Refer to section 7.4 “Connection to the Field

Wireless Network” for confirmation.

- Tag Description

This is a universal parameter to store the

comment that describes the content of the

tag located in the TRANSDUCER and AI

blocks.

The AI1, AI2, and AI3 blocks of the AI blocks

correspond to the differential pressure/

pressure, static pressure, and temperature,

respectively.

• When changing the device information, input

the information based on the following limitation

on the number of characters.
- Message function (up to 32 characters)

TRANSDUCER block: Tag Description

AI1-AI3 block: Tag Description

8.3.5 Unit

The unit parameter is set at the factory before

shipment if specified at the time of order. Follow the

procedure below to change the unit parameter.

• Procedure to call up the Unit display (Units

Index)

Al1 - Al3 block: SCALE: Units Index
To change the Unit display, choose desired unit

among the list of displayed unit selecting AI1

block as for the differential pressure/pressure,

AI2 as for the static pressure and AI3 block as

for temperature in the AI blocks.

8.3.6 Range Change

The range values are factory-set as specified by

the customer. To change the range, follow the steps

below.
The measurement span is determined by the upper

and lower range values. In this method, the upper

and lower range values can be set independently,

and the span changes according to the range limit

values sent to the transmitter.

• Procedure to call up the PV Range display.

AI1, Al2 block: PV Range
Select the AI1 block for the differential pressure/

pressure and the AI2 block for the static

pressure, then select “EU at 0%” and “EU at

100%” displayed in the PV Range parameters,

and input the lower range and upper range

values for the range, respectively.

8.3.7 Output Mode

The output mode of the output signal can be set as

No Linearization or Sq root.

• Procedure to call up the Linearization Type

display

AI1 block: Linearization Type
Select the AI1 block for the differential pressure

and then select No Linearization or Sq root for

the Linearization Type parameter.

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