FB_ASI_ReadParameter

FB_ASI_ReadParameter 1:

Inputs

VAR_INPUT
    iParameternumber : WORD;
    bCycleMode       : BOOL;(*0: Acyclic , 1:Cyclic (permanent Read/Write) *)
    bStart           : BOOL;
END_VAR

Name	Type	Description
iParameterNumber	WORD	Parameter number.
bCycleMode	BOOL	0: Acyclic , 1:Cyclic (permanent Read/Write) If this bit is set, the bBusy output is only canceled when the bStart input is set to FALSE. No current value is present at the output if the bStart input is set to FALSE too early.
bStart	BOOL	The corresponding order is executed with a positive edge at this Boolean input.

Inputs/outputs

VAR_IN_OUT
    stParameterBuffer : ST_ParameterBuffer;
END_VAR

Name	Type	Description
stParameterBuffer	ST_ParameterBuffer	Data buffer for background communication.

Outputs

VAR_OUTPUT
    bBusy               : BOOL;
    bErr                : BOOL;
    iErrornumber        : DWORD;(* Error code of ASI-Master *)
    iParameterReadvalue : BYTE;
END_VAR

Name	Type	Description
bBusy	BOOL	This output remains TRUE until the function block has executed a command. While Busy = TRUE, no new command will be accepted at the inputs. Note that it is not the execution of the service that is monitored in terms of time, but only its acceptance.
bErr	BOOL	This output shows the error state.
bErrornumber	DWORD	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.

Command-specific error code (decimal)	Description
1	Communication timeout
2	ASI slave address not available
3 - 10	Reserved
11	ASI slave is not activated (slave is not in LAS).
12	An error occurred during communication.
13	Data exchange bit (CN.4) not set

Name	Type	Description
iParameterReadvalue	BYTE	I/O ID or ID code of the addressed slave.

Requirements

Development environment	Target platform	IO hardware	PLC libraries to be integrated (category group)
TwinCAT v3.1.0	PC or CX (x86)	ASI master terminal	Tc2_IoFunctions (IO)