F_iecApdu104ToAsduLen
From product version: TwinCAT PLC Library IEC60870-5-104 Substation v2.0.6 and higher.
The function calculates for the IEC 60870-5-104 protocol the maximum available ASDU byte length with the configurated APDU length. The maximum available ASDU length is for example required for the configuration of the ST_IEC870_5_101T buffer variable. This data structure (TX/RX data buffer) is used for the data exchange via the IEC60870-5-104 Transport Interface.
FUNCTION F_iecApdu104ToAsduLen: BYTE
VAR_INPUT
APDULength : BYTE;
END_VAR
APDULength : Available APDU length (see compatibility list).
Requirements
|
Development Environment |
Target System Type |
PLC Libraries to include |
|---|---|---|
|
TwinCAT v2.9.0 Build >= 1030 |
PC or CX (x86) |
TcIEC870_5_104.Lib ( Standard.Lib; TcBase.Lib; TcSystem.Lib; TcpIp.Lib; TcUtilities.Lib; TcSocketHelper.Lib; TcIEC870_5_101.Lib are included automatically ) |
|
TwinCAT v2.10.0 Build >= 1301 |
CX (ARM) |