Description Of Signal Exchange - HBM WTX120 Bedienungsanleitung

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12.4 Description of signal exchange

The receipt of commands (see also data word AW0) is confirmed with a hand­
shake by bits 14 and 15 in data word EW5. The signal exchange runs accord­
ing to the following chart:
Command
Handshake
Yes
Signal successfully
Status
undefined executed
No
Fig. 13.1 Signal exchange
Explanatory note: The receipt of a command (edge 1) is confirmed by bit 14
(command is being executed, edge 2). Then the command can be reset
(edge 3).
After the command has been reset, and has been processed by the terminal,
bit 15 (successfully executed) is set to a defined status (edge 4) and bit 14 is
reset. The status of bit 15 is 1 if the command could be correctly executed, or
0 if an error occurred during execution, e.g. timeout.
WTX120 159
A04500_02_Y00_00 HBM: public