WAGO SPEEDWAY 767 Series Manual

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88 Appendix WAGO-SPEEDWAY 767767-5203 Serial Interface (RS-232, RS-422/-485)ManualVersion 1.1.012.2.3.1.2 AcknowledgementThe following acknowledgements are defined:Table 51: AcknowledgementValue Explanation Description0 INVALID Signals that the receiver has not started operations again aftera reset.1 HOLD ACKNOWLEDGE Signal or confirmation that the channel is ready, but data isnot currently being transferred (e.g. because there is not anydata yet).2 RESET ACKNOWLEDGE Response to "RESET REQUEST" when Mailbox in reset.3 ... 7 - (not supported, ignore)12.2.3.1.3 SignalingIn signal mode, the handshake byte appears as follows:Table 52: Structure of the Handshake ByteHandshake byteBit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 00 0 SignalTable 53: SignalingValue Explanation Description0x00 INVALID SIGNAL State of the process image with no effect by Mailbox 2.00x32 RESET SIGNAL Shows that the local Mailbox is in the process ofrestarting0x33 ERROR SIGNAL Shows that the local Mailbox is in the fault condition(other) - Other values are not considered as signals and areprocessed separately in the Status or Control nibble.