ItpStartStop
Outdated version The sole purpose of the function block is to ensure compatibility with existing projects. For new projects please use the function block ItpStartStopEx. |
Inputs
VAR_INPUT
bStart : BOOL;
bStop : BOOL;
nChnId : UDINT;
tTimeOut : TIME;
END_VAR
Name | Type | Description |
---|---|---|
bStart | BOOL | A positive edge starts the NC channel. |
bStop | BOOL | A positive edge stops the NC channel. A stop command deletes all the tables in the NC and brings the axes to a controlled halt. |
nChnId | UDINT | Channel ID |
tTimeOut | TIME | ADS Timeout-Delay |
The bStop input has a higher priority than the bStart input, so that if both inputs receive a positive edge, a channel stop will be executed. |
Outputs
VAR_OUTPUT
bBusy : BOOL;
bErr : BOOL;
nErrId : UDINT;
END_VAR
Name | 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 platform |
PLC libraries to be linked |
---|---|---|
TwinCAT v3.1.0 |
PC or CX (x86 or x64) |
Tc2_NCI |