ItpSetCyclicLrealOffsets

from library version 6.1.25 and TwinCAT version 2.10 Build 1320

ItpSetCyclicLrealOffsets 1:

The function block ItpSetCyclicLrealOffsets is used to describe the cyclic channel interface for the 4 freely configurable LREAL variables. Variables (index offsets) can be selected from the group state.

The functionality is only active if nIndexOffsetParam1 is not equal 0.

Interface

VAR_INPUT
bExecute           : BOOL;
tTimeOut           : TIME;
nIndexOffsetParam1 : UDINT;
nIndexOffsetParam2 : UDINT;
nIndexOffsetParam3 : UDINT;
nIndexOffsetParam4 : UDINT;
END_VAR
VAR_IN_OUT
sNciToPlc          : NciChannelToPlc;
END_VAR

NciChannelToPlc

VAR_OUTPUT
bBusy              : BOOL;
bErr               : BOOL;
nErrId             : UDINT;
END_VAR

Input

Data type

Description

bExecute

BOOL

The command is triggered by a rising edge at this input.

tTimeOut

TIME

ADS Timeout-Delay

nIndexOffsetParam1

UDINT

Group state (index offset) for parameter 1

nIndexOffsetParam2

UDINT

Group state (index offset) for parameter 2

nIndexOffsetParam3

UDINT

Group state (index offset) for parameter 3

nIndexOffsetParam4

UDINT

Group state (index offset) for parameter 4

Input & output

Data type

Description

sNciToPlc

NciChannelToPlc

The structure of the cyclic channel interface from the NCI to the PLC. This structure is only accessed for reading.

Output

Data type

Description

bBusy

BOOL

This output remains TRUE until the function block has executed a command, but at the longest for the duration supplied to the 'Timeout' input. While Busy = TRUE, no new command will be accepted at the inputs. Please note that it is not the execution of the service but its acceptance whose time is monitored.

bErr

BOOL

This output is switched to TRUE as soon as an error occurs during the execution of a command. The command-specific error code is contained in ‘nErrId’. Is reset to FALSE by the execution of a command at the inputs.

nErrId

UDINT

Contains the command-specific error code of the most recently executed command. Is reset to 0 by the execution of a command at the inputs. The error numbers in ErrId can be looked up in the ADS error documentation or in the NC error documentation (error codes above 0x4000).

See also:

Requirements

Development Environment

Target System Type

PLC Libraries to include

TwinCAT v2.10.0

PC (i386)

TcNci.lib