Siemens S7-1200 System Manual page 549

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DONE, NDR, ERROR, and STATUS output parameters

These instructions provide outputs describing the completion status:

Table 10- 23 Open User Communication instruction output parameters

Note that DONE, NDR, and ERROR are set for one execution only.

Restricted TSAPs and port numbers for passive ISO and TCP communication

If you use the "TCON" instruction to set up and establish a passive communications

connection, the following port addresses are restricted and should not be used:

● ISO TSAP (passive):

● TCP port (passive): 5001, 102, 123, 20, 21, 25, 34962, 34963, 34964, 80

● UDP port (passive): 161, 34962, 34963, 34964

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG

– 01.00, 01.01, 02.00, 02.01, 03.00, 03.01

– 10.00, 10.01, 11.00, 11.01, ... BF.00, BF.01

Is set TRUE for one execution to indicate that the last request

completed without errors; otherwise, FALSE.

Is set TRUE for one execution to indicate that the requested action

has completed without error and new data has been received;

otherwise, FALSE.

Is set TRUE when active to indicate that:

The job is not yet complete.

A new job cannot be triggered.

Is set FALSE when job is complete.

Is set TRUE for one execution to indicate that the last request

completed with errors, with the applicable error code in STATUS;

otherwise, FALSE.

Result status:

If the DONE or NDR bit is set, then STATUS is set to 0 or to an

informational code.

If the ERROR bit is set, then STATUS is set to an error code.

If none of the above bits are set, then the instruction returns

status results that describe the current state of the function.

STATUS retains its value for the duration of the execution of the

Communication

10.2 PROFINET