Parameterization and commissioning
EL6731132 Version: 2.8
ADS read response parameter Meaning
Destination-Net-ID (NETID)
Net-ID of the slave (see the device’s ADS [}92] tab)
Destination-Port (PORT) 0x200
Invoke-ID (INVOKEID) A unique number, as under indication
Result (RESULT) Result of the read: 0 = no error, otherwise: bits 0-15 =
standard ADS error codes, bits 16-23 = Error_Code_1,
bits 24-31 = Error_Code_2, see description of the DPV1
error codes [}126]
Length (LENGTH) Length of the data that has been read
Data (DATAADDR) read data
MSAC-C1 Write
A DPV1-MSAC_C1 write indication is represented in an ADS write indication as follows:
ADS write indication parameter Meaning
Source-Net-ID (NETID)
Net-ID of the slave (see the device’s ADS [}92] tab)
Source-Port (PORT) 0x200
Invoke-ID (INVOKEID) A unique number that must reappear in the response
IndexGroup (IDXGRP) Slot number (DPV1 parameter)
IndexOffset(IDXOFFS) Index (DPV1 parameter)
Length (LENGTH) Length of the data that is to be written
Data (DATAADDR) data that is to be written
An ADS read response is represented in a DPV1-MSAC_C1 read response as follows:
ADS read response parameter Meaning
Destination-Net-ID (NETID)
Net-ID of the slave (see the device’s ADS [}92] tab)
Destination-Port (PORT) 0x200
Invoke-ID (INVOKEID) A unique number, as under indication
Result (RESULT) Result of the read: 0 = no error, otherwise: bits 0-15 =
standard ADS error code, bits 16-23 = Error_Code_1, bits
24-31 = Error_Code_2, see description of the DPV1 error
codes [}126]
Length (LENGTH) Length of the data that has been read
ADS Interface
Communication can also take place via ADS in TwinCAT systems. The functionality is extremely similar to
that of an ADS connection between two PCs over Ethernet, although transmission takes place over
PROFIBUS, with the exception that the requester that initiates the ADS job is always the DP master PC. An
EL6731 DP master is then linked to an EL6731-DP slave.
In the DP master, the ADS Interface should be activated on the "ADS" tab of the box, and the Net-ID of the
DP slave PC is to be entered:
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