SimpleWriteArrayOfWord

SimpleWriteArrayOfWord (FB)

FUNCTION_BLOCK SimpleWriteArrayOfWord

Representation

Triggering the transmission of Modbus data

The data transmission is triggered if at least one of the conditions described below is met:

Requirement: A suitable array is connected to input arwInputArray . This is signaled by output xInputArrayValid (= TRUE).

1. after an edge change at input xUpdateSetp (FALSE >> TRUE) (once)

2. after the expiry of the duration tTimeUpdateSetp (tTimeUpdateSetp > 0) (cyclic)

3. after a change to the array at the input arwInputArray (data type, size, contents) (once)

4. after a change of essential parameters (byUnitId, wRegisterAddr) (once)

5. after an edge change at input xEn (FALSE >> TRUE) (once)

6. after each cold start (once)

Note: The data type of the array at input arwInputArray cannot be recognized and evaluated as of 07/07/2023 (CDS-43675 Compiler, AnyType: Extension for Arrays needed) In the tooltip help for input arwInputArray the possible array data types are displayed depending on the selected function code.

InOut:

Scope	Name	Type	Initial	Comment
Input	xEn	BOOL	TRUE	Enable / disable communication (TRUE = enable)
Input	byUnitId	BYTE	0	Modbus address of the device
Input	arwInputArray	__SYSTEM.AnyType		Input for the array of data to be written (FC16, ARRAY OF WORD, ARRAY OF UINT (16 bits per element))
Input	xUpdateSetp	BOOL	FALSE	Update of setpoints (on every rising edge)
Input	xResError	BOOL	FALSE	Reinitialization of the outputs eErrorCodeCom or eErrorCodeDev to the error-free state (on every rising edge)
Inout	ModbusClient	ModbusClientBase		Client of the device
Output	wRegisterAddrFb	WORD	0	Feedback - start address of the register for the Modbus- telegram
Output	diInputArrayNumb	DINT	0	Number of array elements at the input arwInputArray
Output	xInputArrayValid	BOOL	FALSE	Validity of the array at the input arwInputArray (data type, size) (FALSE = not valid, TRUE = valid)
Output	xAlarm	BOOL	FALSE	Collective fault (TRUE = fault)
Output	xAlarmCom	BOOL	FALSE	Collective fault - communication (TRUE = fault)
Output	eErrorCodeCom	ModbusErrorCode	ModbusErrorCode.NO_ERROR	Error code - communication (0 = no error)
Output	eErrorCodeDev	SIMPLE_WRITE_ARRAY_OF_WORD_ERROR_CODE	SIMPLE_WRITE_ARRAY_OF_WORD_ERROR_CODE.NO_ERROR	Error code - device (0 = no error)
Output	xBusy	BOOL	FALSE	Communication indicator (TRUE = communication)
Input Const	wRegisterAddr	WORD		Start address of the register for the Modbus telegram
Input Const	tTimeUpdateSetp	TIME	TIME#0ms	Update interval for the processes influenced by the input xUpdateSetp influenced