12.2.3.1.2 Acknowledgement; 12.2.3.1.3 Signaling; Table 51: Acknowledgement; Table 53: Signaling - WAGO SPEEDWAY 767 Series Manual

88 Appendix

12.2.3.1.2 Acknowledgement

The following acknowledgements are defined:

Table 51: Acknowledgement

Value Explanation
0 INVALID
1 HOLD ACKNOWLEDGE Signal or confirmation that the channel is ready, but data is
2 RESET ACKNOWLEDGE Response to "RESET REQUEST" when Mailbox in reset.
3 ... 7 -

12.2.3.1.3 Signaling

In signal mode, the handshake byte appears as follows:
Table 52: Structure of the Handshake Byte
Bit 7 Bit 6
0

Table 53: Signaling

Value
0x00
0x32
0x33
(other)
Handshake byte
Bit 5 Bit 4 Bit 3
0 Signal
Explanation
INVALID SIGNAL
RESET SIGNAL
ERROR SIGNAL
-
767-5203 Serial Interface (RS-232, RS-422/-485)
Description
Signals that the receiver has not started operations again after
a reset.
not currently being transferred (e.g. because there is not any
data yet).
(not supported, ignore)
Bit 2 Bit 1 Bit 0
Description
State of the process image with no effect by Mailbox 2.0
Shows that the local Mailbox is in the process of
restarting
Shows that the local Mailbox is in the fault condition
Other values are not considered as signals and are
processed separately in the Status or Control nibble.
WAGO-SPEEDWAY 767
Manual
Version 1.1.0