Fastech Ezi-IO EtherCAT DA, Руководство пользователя

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Data Types 10.1.3
Data types for Objects.
Data Type Length of Data Range
U8 1 byte 0 ~ 255
U16 2 bytes 0 ~ 65,535
U32 4 bytes 0 ~ 4,294,967,295
I8 1 byte -128 ~ 127
I16 2 bytes -32,768 ~ 32,767
I32 4 bytes -2,147,483,648 ~ 2,147,483,647
BOOL 1 bit 0 ~ 1
STR(n) n bytes n-byte long string
Table 10-2. Data Types
Access 10.1.4
The following table shows access types for each Object.
Access Description
RO Read Only / Variables for read-only.
RW Read/Write / Variables for read or write
Table 10-3. Access Type of Object
SAVE 10.1.5
The Object values are automatically saved in EEPROM.
PDO Mapping 10.1.6
Indicates whether the Object is valid for the PDO communication of EtherCAT or not.
PDO Type Description
No The Object is NOT valid for PDO Mapping.
Tx PDO The Object is valid for Tx PDO Mapping.
Rx PDO The Object is valid for Rx PDO Mapping.
Table 10-4. PDO Mapping
Constant Value 10.1.7
Constant Value is a fixed value stored in the Object. The value varies depending on the product model and
version.