FB_OcaDevice

The function block FB_OcaDevice establishes the connection via TcpIp to devices that support the AES70 standard.

	Cyclically single call The instance of the function block FB_OcaDevice must be called cyclically once at the start of the PLC program.

Syntax

VAR_INPUT
   bEnable         : BOOL;
END_VAR
VAR_OUTPUT
   ipTcResultEvent : Tc3_EventLogger.I_TcResultEvent; 
   pLink           : POINTER TO ST_Link;
   bBusy           : BOOL;
   bActive         : BOOL; 
   bError          : BOOL; 
   stDeviceInfo    : ST_OcaDeviceInfo;
END_VAR

Inputs

Name	Type	Description
bEnable	BOOL	Enables/disables execution of the function block and starts the "keep alive" mechanism. A rising edge at this input clears any pending errors (indicated by bError = TRUE). The property sDeviceName should be set before the activation. Parameters such as IP address, port, etc. should also be predefined in the global variable list "GVL_AES70".

Name

Type

Description

bEnable

BOOL

Enables/disables execution of the function block and starts the "keep alive" mechanism.

A rising edge at this input clears any pending errors (indicated by bError = TRUE).
The property sDeviceName should be set before the activation. Parameters such as IP address, port, etc. should also be predefined in the global variable list "GVL_AES70".

Outputs

Name	Type	Description
ipTcResultEvent	Tc3_EventLogger.I_TcResultEvent	Result interface with detailed information on the return value
pLink	POINTER TO ST_Link	Pointer for establishing a connection between OCA objects and the OCA device
bBusy	BOOL	TRUE as long as the function block is called with bEnable = TRUE.
bActive	BOOL	Indicates that the device is ready to operate. This output is generally used to activate OCA objects.
bError	BOOL	TRUE, if an error occurs.
stDeviceInfo	ST_OcaDeviceInfo	This structure provides information such as the time of the last sent or received message and the number of messages.

Properties

Name	Type	Access	Definition location	Description
AmsNetId	T_AmsNetID	Set	Local	AMS network ID of the device For the local computer (default) an empty string may be specified.
bLocalOcaDevice	BOOL		Local	Currently unused (intended for future extension)
sDeviceName	STRING	Set		Name of the OCA device to be used Parameters such as IP address and port are defined in the array aOcaDevices, which can be found in the global variable list GVL_AES70.
tAdsTimeout	TIME	Set		Maximum time allowed for the execution of the function block This input is internally preset to DEFAULT_ADS_TIMEOUT and does not have to be explicitly assigned.

Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT v3.1.4022.2 or higher	PC or CX (x64, x86, ARM)	Tc3_AES70