AMCI 7551 Schnellstart-Handbuch - Seite 4

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7500 I

ERIES

NTELLIGENT

Software Configuration

Before the 7551 can communicate with the SLC processor, you must program the proper ID Code into the pro-

grammable controller's processor file using a Hand Held Terminal or APS software. The ID Code for the 7551 is

3515. This ID Code reserves 8 Input and 8 Output words for the module. Refer to your A-B manuals for explicit

instructions on entering ID Codes with the HHT or APS software.

If you are using ICOM's A.I. Series™ Programming Software it must be version 7.03 or above.

A lower version number will not allow you to set the ID Code as high as 3515.

7551 Programmable Parameters

The 7551 gives tremendous flexibility in scaling the position and velocity data to meaningful values for your

application. An example of a common application for LDTs is measuring the amount of liquid in a tank. With

the 7551 you can scale the position to read out directly in gallons, either in the tank or dispensed, and velocity

data to read out in gallons dispensed per second.

The 7551 has many programmable Parameters to achive this flexibility. Below is a listing with a brief

explanation and default values.

LDT Type - Specifies the type of LDT, AMCI, Balluff or Temposonics, attached to the 7551. Defaults

to AMCI.

Connection Type - Specifies the type of Personality Module, RPM or DPM, in the Temposonics LDT.

Default value of RPM.

Measurement Unit - Specifies the measurement unit for the Full Scale Length parameter and effects

the values that can be entered for Full Scale Count. If the LDT Type is Temposonics, this parameter

also effects the value of the LDT Gradient. Default value of Inches and Temposonics LDT Gradient

specified in µSec/inch. AMCI and Balluff LDT Gradients are always specified in meters/second.

LDT Gradient - This is a calibration parameter supplied by the LDT manufacturer. MTS specifies the

gradient in µSec/inch or µSec/mm while Balluff specifies it in meters/second. The gradient value

need not be programmed for operation but accuracy will suffer. Default value of 2813 meters/sec.

Full Scale Length - Most commonly set to the expected length of travel, the Full Scale Length can

actually be any value that simplifies the Full Scale Count value. Based on the Measurement Unit

setting, the range of values is 2 to 327 inches or 50 to 8305 millimeters. Default value of 16 inches.

Full Scale Count - Sets the number of counts over the specified Full Scale Length. The range of values

is 2 to (Full Scale Length * 1000) if Measurement Unit is inches or 2 to (Full Scale Length * 10) if

Measurement Unit is millimeters. Default value of 16000. (Resolution equals 0.001 inches)

Preset Value - Allows you to set the Position (starting count) of the LDT when at its home position.

The range of values is -999,999 to +999,999. Note that changing the Preset Value does not set the

Position to the specified value. The Position is preset only if the PRESET LDT Bit, Output Word 0 /

Bit 0, is set to '1' during a program transfer. Default value of zero.

Count Direction - Specifies the direction, relative to the head of the LDT, the magnet must travel to

increment the position count. Setting the direction positive forces the position count to increment as

the magnet travels away for the LDT head. Setting the direction negative forces the position count

to increment as the magnet travels toward the LDT head. Default direction is positive.

LDT I

NTERFACE

ODULE

ADV ANC ED

MIC RO CON T RO L S INC.