E_IEC870_5_101LinkMode

Configures the data transfer mode.

Syntax

TYPE E_IEC870_5_101LinkMode :
(
    eIEC870_LinkMode_Unbalanced,
    eIEC870_LinkMode_Balanced
);
END_TYPE

eIEC870_LinkMode_Unbalanced: Asymmetric data transfer. In this transfer mode the control station (master) controls the data exchange with the substations (slaves). The data exchange is always initiated by the control station. In this way, the control station sequentially queries all substations.

eIEC870_LinkMode_Balanced: Symmetric data transfer. In this transfer mode each station can initiate the data exchange. It can only be used in "point-to-point" and "multiple-point-to-point" configurations.

Requirements

Development environment	Target system type	PLC libraries to be linked (category group)
TwinCAT v3.1.4012.0	PC oder CX (x86, x64, ARM)	Tc2_IEC60870_5_10x (Communication->IEC60870) Tc2_SerialCom (Communication->Serial) Tc2_TcpIp (Communication->TcpIp) Tc2_Utilities (System)