ABB RETA-01 - Page 57

Communication
57
The following tables describe the predefined assembly instances
supported by the RETA-01.
Note: The terms "input" and "output" are defined from the network
master's point of view. For example, drive's status words are
considered as the input data and control words as the output data.
An input will produce data to the network and an output will
consume data received from the network.
Basic Speed Control assembly
The Basic Speed Control assembly is defined by ODVA AC/DC
Drive Profile. The format of the output assembly is:
The format of the input assembly is:
Note: If the Basic Speed Control or the Extended Speed Control
assembly is used, it must be ensured that the fieldbus is selected
as the drive control source and fieldbus specific (Generic Drive
profile) Control/Status Word format is selected instead of ABB
Drives profile.
Instance 20
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Fault reset Run fwd
1
2 Speed reference (Low byte)
3 Speed reference (High byte)
Instance 70
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Running 1 Faulted
1
2 Speed actual value (Low byte)
3 Speed actual value (High byte)