Emerson 3051S Especificações descarregar pdf (Página 111)

Reference Manual

00809-0200-4801, Rev CA

July 2010

Rosemount 3051S

www.rosemount.com

Appendix A FOUNDATION fieldbus Block

Information

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1

Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1

Sensor Transducer Block . . . . . . . . . . . . . . . . . . . . . . . . . page A-7

Analog Input (AI) Function Block . . . . . . . . . . . . . . . . . . . page A-9

LCD Display Transducer Block . . . . . . . . . . . . . . . . . . . . . page A-13

Advanced Diagnostics Transducer Block (ADB) . . . . . . . page A-15

OVERVIEW

Figure A-1. Analog Input

Function Block Schematic

RESOURCE BLOCK This section contains information on the 3051S Resource Block. Descriptions

of all Resource Block Parameters, errors, and diagnostics are included. Also

the modes, alarm detection, status handling, and troubleshooting

are discussed.

Definition

The resource block defines the physical resources of the device. The

resource block also handles functionality that is common across multiple

blocks. The block has no linkable inputs or outputs.

Table A-1. Resource Block Parameters

Parameter Index Valid Range Initial Value Units Other Description

ST_REV 1 0-255 Read

Only

The revision level of the static data associated with the

function block.

TAG_DESC 2 spaces N/A The user description of the intended application of the block.

STRATEGY 3 0 N/A The strategy field can be used to identify grouping of blocks.

ALERT_KEY 4 1-255 0 N/A The identification number of the plant unit.

MODE_BLK 5 O/S N/A The actual, target, permitted, and normal modes of the block.

BLOCK_ERR 6 E Read

Only

This parameter reflects the error status associated with the

hardware or software components associated with a block. it

is a bit string, so that multiple errors may be shown.

RS_STATE 7 N/A Read

Only

State of the function block application state machine.

TEST_RW 8 N/A Read/write test parameter - used only for conformance

testing.

DD_RESOURCE 9 NULL N/A Read

Only

String identifying the tag of the resource which contains the

Device Description for the resource.

MANUFAC_ID 10 Enumeration,

controlled by

0x1151 E Read

Only

Manufacturer identification number - used by an interface

device to locate the DD file for the resource.

DEV_TYPE 11 0x3051 E Read

Only

Manufacturer's model number associated with the resource -

used by interface devices to locate the DD file for the

resource.

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 239 240

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