
AMT58x-EC EtherCAT®
20
5.5 Online Data
In the left pane of the TwinCAT System Manager main window press
the Box (AMT58-ECAT) item: some tabbed pages for configuring and
managing the device will appear in the right pane. Enter the Online
page to check the encoder status.
To display the encoder process data in real time, click the Safe-OP
button if you want to display inputs only; click the OP button if you
want to display both inputs and outputs.
WARNING
The structure of Data Objects (PDO and SDO) requires bytes to be
sent from the Least Significant Byte (LSB) to the Most Significant
Byte (MSB).
On the contrary in TwinCAT write and read data from MSB to LSB.
Furthermore in TwinCAT also strings must be entered in the reverse
order:
read default values: Data byte = 64 61 6F 6Chex = “daol” in ASCII
code (means “load” in reverse);
save parameters: Data byte = 65 76 61 73hex = “evas” in ASCII
code (means “save” in reverse).
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