246 CANopen Master and Slave
WAGO-I/O-SYSTEM 750
750-8215 PFC200; G2; 4ETH CAN USB
Manual
Version 1.2.0, valid from FW Version 03.02.02(14)
As CANopen does not transfer data by bits, the variable data is combined from a
Boolean data type to bytes and assigned to the corresponding index; Boolean
input variable data is assigned to index 0xA080, Boolean output variable data to
index 0xA500.
Variable data that has a data width of 1 byte or more is assigned to the
corresponding indices in a similar manner.
Observe the direction of data flow!
The IEC 61131-3 input variables are defined from the perspective of the CAN
bus. These are output variables from the perspective of the PFC. Accordingly,
the IEC 61131-3 output variables are input variables for the PFC.
This table provides an overview of the indices of “IEC 61131-3” variables.
Table 184
: Indexing of “IEC 61131-3” Variable Data in the Object Directory
Data Type
IEC 61131-3 Output
Variables
IEC 61131-3 Input Variables
Index
Integer8
0xA000
0xA480
Unsigned8
0xA040
0xA4C0
Boolean
0xA080
0xA500
Integer16
0xA0C0
0xA540
Unsigned16
0xA100
0xA580
Integer24
0xA140
0xA5C0
Unsigned24
0xA180
0xA600
Integer32
0xA1C0
0xA640
Unsigned32
0xA200
0xA680
Float32
0xA240
0xA6C0
Unsigned40
0xA280
0xA700
Integer40
0xA2C0
0xA740
Unsigned48
0xA300
0xA780
Integer48
0xA340
0xA7C0
Unsigned56
0xA380
0xA800
Integer56
0xA3C0
0xA840
Integer64
0xA400
0xA880
Unsigned64
0xA440
0xA8C0
Using the associated indices for data types with a data width of 1 byte (Integer8,
Unsigned8 and Boolean), read-only byte-by-byte access is possible from the
fieldbus to data in the controller memory.
The sub-index is utilized to select a specific byte.