104 Appendix WAGO-I/O-SYSTEM 750750-632 Proportional Valve ModuleManualVersion 1.3.0, valid from FW/HW-Version 01/0111.1.2.1 The Handshake ByteIn general, a distinction is made between Control(C) and Toggle(T) mode (bit 7).The Control mode is used to synchronize the subscribers. The Toggle mode isused to exchange data.Structure of the handshake byte:Table 68: Structure of the Handshake ByteHandshake byteBit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0Status ControlC/T Response C/T CommandT 0x0 T 0x0The following figure shows the basic use of the handshake byte.Figure 56: Use of the Handshake Byte