Control and Status Bytes

The control bytes 0 (CB0), 1 (CB1) and 2 (CB2) are in the output image and are transferred from the controller to the power terminal. Pay attention to the assignment of the control bytes to the process input data words in process data mode.

The status bytes 0 (SB0), 1 (SB1) and 2 (SB2) are in the input image and are transferred from the power terminal to the controller.

Since the structure and application of the control and status bytes are identical, they are described below using control byte 0 (CB0) and status byte 0 (SB0) as examples.