DAC-42(A)-x-PN
Page 58
DAC-42(A)-x-PN
Manual
Revision: 1.0
22.01.2024
10.4 Explanation of the function block
10.4.1 General
In this chapter we describe, how to use the function block in the different modes.
The structure and function for CMD 3, CMD 6 is the same in every working mode of the DAC-4x(A). Only the CMD 15
differs depending on the DAC-4x(A) operation mode.
The Bus slave address SNUM of the connected DAC-4x(A) is fixed and is set to “1” (single slave).
The COM_ERROR is obtained from the telegram header, which is transmitted from the Profinet node to the PLC.
When this error is pending, the slave address source and the cause can be found out by analyze the COM_EXCE code.
(See □ Chapter “8.1.3 CMD = 3, Error from DAC-4x(A) (4 bytes)“,page 43
or □ Chapter “8.3.3 CMD = 6, Error from DAC-4x(A) (4 bytes)”, page 45
Reset an communication error can by set the input #COM_RESET
An GLOBAL_ERROR occurs if any communication error or/and internal DMA-2 error is pending.
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