ItpSingleBlock
from library version 6.1.26
The ItpSingleBlock block activates or deactivates single block mode in the NCI. Block relaying can be triggered directly from the PLC with the input 'bTriggerNext'. Alternatively the Start button of the interpreter (F5) can be used in the System Manager.
A more detailed description can be found in the interpreter documentation.
Interface
VAR_INPUT
bExecuteModeChange : BOOL;
nMode : E_ItpSingelBlockMode;
bTriggerNext : BOOL
tTimeOut : TIME;
END_VAR
VAR_IN_OUT
sNciToPlc : NciChannelToPlc;
END_VAR
VAR_OUTPUT
bBusy : BOOL;
bErr : BOOL;
nErrId : UDINT;
END_VAR
TYPE E_ItpSingleBlockMode:
(
ItpSingleBlockOff := 0,
ItpSingleBlockNck := 1,
ItpSingleBlockIntp := 16#4000
);
END_TYPE
Description
The block has the following inputs:
|
Input |
Data type |
Description |
|---|---|---|
|
bExecuteModeChange |
BOOL |
Single block mode (nMode) is activated through a rising edge at this input. |
|
nMode |
E_ItpSingleBlockMode |
Operation mode for single block (cf. single block mode):
|
|
bTriggerNext |
BOOL |
Block relaying is triggered by a rising edge at this input. |
|
tTimeOut |
TIME |
ADS Timeout-Delay |
|
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). |
Requirements
|
Development environment |
Target system |
PLC libraries to be included |
|---|---|---|
|
TwinCAT v2.7.0 |
PC (i386) |
not implemented yet |
|
TwinCAT v2.8.0 |
PC (i386) |
TcNci.lib (ab Lib. V 6.1.26) |