Communication 
  11.2 PROFINET 
S7-1200 Programmable controller 
System Manual, V4.2, 09/2016, A5E02486680-AK 
855 
1  80A1  Communications error: 
•  The specified connection was not yet established 
•  The specified connection is currently being terminated; transmission over this con-
nection is not possible 
•  The interface is being reinitialized 
1  80A3  Attempt being made to terminate a nonexistent connection 
1  80A4  IP address of the remote partner connection is invalid. For example, the remote partner 
IP address is the same as the local partner IP address.  
1  80A5  Connection ID (Page 828) is already in use. 
Communications error: You called TDISCON before TSEND_C was complete. 
1  80B2  The CONNECT parameter points to a data block that was generated with the keyword 
1  80B3  Inconsistent parameters: 
•  Error in the connection description 
•  Local port (parameter local_tsap_id) is already present in another connection de-
scription. 
•  ID in the connection description different from the ID specified as parameter 
1  80B4  When using the ISO on TCP (connection_type = B#16#12) to establish a passive con-
nection, 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 oth-
er 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). 
1  80B7  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. 
All connection resources are in use. 
1  80C4  Temporary communications error:  
•  The connection cannot be established at this time 
•  The interface is receiving new parameters 
•  The configured connection is currently being removed by a TDISCON. 
CONNECT parameter: Source area invalid: area does not exist in DB. 
1  873A  CONNECT parameter: Access to connection description is not possible (for example, 
CONNECT parameter: Internal error such as an invalid ANY reference 
Parameter contains the number of a DB that is not loaded.