FB_LicFileRead
![FB_LicFileRead 1:](Images/png/4579237515__Web.png)
The function block reads a file from the license dongle to a buffer (pDestBuff and cbReadLen) via a positive edge at bExecute. The buffer must be large enough for the file, otherwise only the first part of the file is read.
VAR_INPUT
VAR_INPUT
sNetId : T_AmsNetId;
nPort : UINT;
sFileName : STRING;
pDestBuff : PVOID;
cbReadLen : UDINT
bExecute : BOOL;
dwPassCode : DWORD;
tTimeout : TIME := DEFAULT_ADS_TIMEOUT;
END_VAR
sNetId: AmsNetId (AMS network identifier) of the license dongle (type: T_AmsNetId)
- USB dongle: AmsNetId of the TwinCAT computer. If it is to be run on the local computer, an empty string can be entered.
- EL6070: AmsNetId of the EtherCAT master (see AdsAddr.netId in the InfoData of the EL6070)
nPort: AMS port of the license dongle
- USB: ADS port of the ESB device (see ADS port on the ESB Device tab of the USB dongle; the default is 16#7100)
- EL6070: ADS port of the EtherCAT Terminal (see AdsAddr.port in the InfoData of the EL6070)
sFileName: Name of the file to be read
pDestBuff: Buffer address for read
cbReadLen: Count of bytes for read
bExecute: The function block is activated by a positive edge at this input.
dwPassCode: Passcode for file access
tTimeout: Timeout time that must not be exceeded when the command is executed.
VAR_OUTPUT
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
nErrorId : UDINT;
END_VAR
bBusy: TRUE, as long as the function block is active.
bError: TRUE if an error occurs during command execution.
nErrorId: Supplies the ADS error number when the bError output is set.
Requirements
Development environment | Target platform | PLC libraries to include |
---|---|---|
TwinCAT v3.1.4022 | PC or CX (x64, x86) | Tc2_Utilties >= 3.3.26.0 |