4 resource block, Resource block function – Flowserve 400MD Logix User Manual

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Table 8.2 Block Parameter List Column Description

Column Name

Description

Index

A number that corresponds to the sequence of the parameter in the block parameter segment of the object dictionary. See

Object Dictionary, Section 8.16.

Origin

STND – Standard Fieldbus Parameter defined in FF specifications

MFG – Enhanced Parameter Manufacturer defined

Name

The mnemonic character designation for the parameter.

Data Type / Structure

Data type or structure for the parameter value:

1. Data types consist of simple variables or arrays and are:

Unsigned8, Unsigned16 Unsigned32 - An unsigned variable of 8, 16 or 32 bits.

Floating point - Floating point variable.

Visible string - Visible string variable.

Octet string - Octet string variable.

Bit string - Bit string variable.

2. Data Structures consist of a record which may be:

Value and Status - float - Value and status of a floating point parameter.

Scaling - Static data used to scale floating point values for display purposes.

Mode - Bit strings for target, actual, permitted and normal modes.

Access permissions - Access control flags for access to block parameters.

Alarm - float - Data that describes floating point alarms.

Alarm - discrete - Data that describes discrete alarms.

Event - update - Data that describes a static revision alarm.

Alarm - summary - Data that summarizes 16 alerts.

Simulate - Float - Simulate and transducer floating point value and status,and a simulate enable/disable

discrete.

Test - Function block test read/write data.

Store

Indicates the type of memory where the parameter is stored:

S - Static — Writing to the parameter changes the static revision counter parameter ST_REV

N - Non-volatile — Parameter must be retained during a power cycle. It is not under the static update code.

D - Dynamic — The value is calculated by the block, or read from another block.

R - Readable — The value is readable by the host.

W - Writeable — The value is writeable by the host.

Default Value

Default values for the block parameters. These are the values that are used when:

the FBAP is initialized for the first time, or

selecting restart with defaults of the resource block parameter RESTART.

Performing a factory reset

8.4 Resource Block

Resource Block Function

The resource block contains data and parameters related to overall operation of the device and the FBAP. Parameters that describe the hard-
ware specific characteristics of the device and support application download operations make up the resource block.

Resource Block Parameters Table 8.3 lists the FF and Flowserve-defined parameters and their default values contained in the resource block.

Table 8.3 Resource Block Parameters

Index

Origin

Name

Store

Date Type

Default Value

0

STND

RESOURCE_BLOCK_2

SRW

Record

BLOCK

0

1

STND

ST_REV

SR

Simple

UNSIGNED16

0

2

STND

TAG_DESC

SRW

Simple

OCTET_STRING

“ “

3

STND

STRATEGY

SRW

Simple

UNSIGNED16

0

4

STND

ALERT_KEY

SRW

Simple

UNSIGNED8

0

5

STND

MODE_BLK

SRW

Record

MODE

0x01;0x01;0x11;0x10

6

STND

BLOCK_ERR

R

Simple

BIT_STRING

0

7

STND

RS_STATE

R

Simple

UNSIGNED8

4

8

STND

TEST_RW

WR

Record

TEST

0

9

STND

DD_RESOURCE

SR

Simple

VISIBLE_STRING

“ “

Logix 3400MD Digital Positioner LGENIM3405-02 11/13

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