_INVDRT203_ReadAxisError.pdf

INVDRT203_ReadAxisError (1/2)

INVDRT

-203

Read Inverter Error Information: _INVDRT203_ReadAxisError

Basic

function

Reads the error information from an Inverter connected to DeviceNet.

Symbol

Start trigger

_INVDRT203_ReadAxisError

(BOOL)

↑

(BOOL)

ENO

(INT)

MasterUnitNo

(BOOL)

BUSY

Busy Flag

Master Unit No.

Busy Flag

(INT)

NodeNo

(BOOL)

Done

Inverter slave address

Normal end

(BOOL)

Error

Error end

(W ORD)

ErrorID

Error number

(May be omitted.)

File name

Lib\FBL\omronlib\Inverter\INVRT\Dnet\_INVDRT203_ReadAxisError10.cxf

Applicable

models

3G3MV-series and 3G3RV-series Inverters

Conditions

for usage

Settings

PLC Setup: Shared Settings for Communications Instructions in FBs

• DeviceNet Response Timeout Time (default: 2 s)

• Number of retries (default: 0)

Shared Resources

• Communications ports (internal logical ports)

Inverter Settings

The following are necessary for the Inverter connected to DeviceNet.

• It must use standard remote I/O. (This is the default setting for the 3G3xV-PDRT2 DeviceNet Unit.)

• Use Fixed allocation for I/O memory allocation. This FB does not use I/O memory for read but is

designed to be used under Fixed allocation.

If the Configurator software is used to set any allocation different from the fixed allocation, some FB

cannot be used.

Refer to section 2 in the SYSDRIVE DeviceNet Communications Unit/Card User's Manual for the complete

procedure.

Function

description

The error information is read from the Inverter specified by the Master Unit No. and the Inverter Slave

Address.

precautions

• The FB is processed over multiple cycles. The BUSY output variable can be used to check whether the

FB is being processed.

• Done or Error will be turned ON for one cycle only after processing is completed. Use these flags to

detect the end of FB processing.

Timechart

Start Trigger

OFF

Busy Flag (BUSY)

OFF

Normal end (Done)

or Error end (Error)

OFF

FB execution completed.

EN input

condition

Connect EN to an OR between an upwardly differentiated condition for the start trigger and the BUSY output

from the FB.

Restrictions

Input

variables

• Always use an upwardly differentiated condition for EN.

• If the input variables are out of range, the ENO Flag will turn OFF and the FB will not be processed.

Output

variables

• This FB requires multiple cycles to process. Always connect an OR including the BUSY output variable

to the EN input variable to ensure that the FB is processed to completion (see Symbol ).

• Do not turn the BUSY output variable ON or OFF outside the FB.

INVDRT203_ReadAxisError (2/2)

Application

example

When bit A turns ON, the error information is read from Inverter 20 connected to the DeviceNet Unit with a

unit number of 10.

&10

Unit No.: 10

CPU

DRM

Inverter DRT2: 20

DRT2 20

Inverter

Bit A

_INVDRT203_ReadAxisError

(BOOL)

↑

(BOOL)

ENO

Busy Flag

Bit B

Master Unit No.

&10

(INT)

MasterUnitNo

(BOOL)

BUSY

Normal end

Bit C

Inverter slave address

&20

(INT)

NodeNo

(BOOL)

Done

(BOOL)

Error

Error end

Bit D

Error number

D100

(W ORD)

ErrorID

manuals

SYSDRIVE 3G3MV Multi-function Compact Inverters User’s Manual (I527)

SYSDRIVE 3G3RV High-function General-purpose Inverters User’s Manual (I532)

SYSDRIVE DeviceNet Communications Unit/Card User's Manual (I539)

8-4 Inverter Faults

Variable Tables

Input Variables

Name

Variable name

Data type Default Range

Description

BOOL

1 (ON): FB started

0 (OFF): FB not started.

Master Unit No.

MasterUnitNo

INT

&0 to &15

#0 to #F

The unit number of the DeviceNet Unit

Inverter slave

address

NodeNo

INT

&0 to &63 The address of the slave

Output Variables

Name

Variable name

Data type Range

Description

ENO

(May be omitted.)

ENO

BOOL

1 (ON): FB processed normally.

0 (OFF): FB not processed or ended in an error.

Busy Flag

BUSY

BOOL

0 (OFF): Communication completed (turns OFF for 1

cycle)

1 (ON): Communicating

Normal end

Done

BOOL

0 (OFF): Other status

1 (ON): Communications completed with no error

Error end

Error

BOOL

0 (OFF): Other status

1 (ON): An error occurred in the Inverter.

Error number

ErrorID

WORD

#0000: No error or communications error prevented

getting the error number

#0001 to #FFFF: Error number from Inverter

Refer to the Related Manuals for details.

Version History

Version

Date

Contents

1.00

2004.6.

Original production

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