Siemens S7-1200 System Manual page 530

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Table of Contents

Communication

10.2 PROFINET

TSEND and TRCV

When using PROFINET Open User communication, if you execute a TSEND instruction

without a corresponding TRCV instruction executing on the remote device, then the TSEND

instruction may reside indefinitely in a "Busy State", waiting for the TRCV instruction to

receive the data. In this state, the TSEND instruction "Busy" output is set, and the "Status"

output has a value of "0x7002". This condition may occur if you are transferring more than

4096 bytes of data. The issue is resolved at the next execution of the TRCV instruction.

TCON: When using the ISO on TCP (connection_type = B#16#12) to establish a

passive connection, condition code 80B4 alerts you that the TSAP entered did not

conform to one of the following address requirements:

For a local TSAP length of 2 and a TSAP ID value of either E0 or E1 (hexadecimal)

for the first byte, the second byte must be either 00 or 01.

For a local TSAP length of 3 or greater and a TSAP ID value of either E0 or E1

(hexadecimal) for the first byte, the second byte must be either 00 or 01 and all

other bytes must be valid ASCII characters.

For a local TSAP length of 3 or greater and the first byte of the TSAP ID does not

have a value of either E0 or E1 (hexadecimal), then all bytes of the TSAP ID must

be valid ASCII characters.

Valid ASCII characters are byte values from 20 to 7E (hexadecimal).

TCON: Parameter assignment error in parameter connection_type

TCON: Data type and/or length of the transmitted data does not fit in the area in the

partner CPU, in which it is to be written.

TCON: Parameter in the local connection description and Parameter ID are different.

TCON: All connection resources are in use.

Temporary communications error:

The connection cannot be established at this time (TCON).

The configured connection is currently being removed by TDISCON (TCON).

The connection is currently being established (TDISCON).

The interface is receiving new parameters (TCON and TDISCON).

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG