Siemens SIMATIC PCS7 Manual page 209

Batch flexible , Manual
C79000-G7076-C650-02
* Standard-auxiliary process values of a BATCH-message are:
1 = batch name
2 = AF-ID or TR-ID
3 = batches-ID (is archived, not displayed)
4 = computer name
message)
(the numbering 1 to 3 corresponds to the definition of the
ALARM_8P-auxiliary process values)
** These messages do not actually result from an operator action but are
classified as such, since the message format of the control system contains
only operator messages without outgoing messages.
*** During modification of parameters a new AF/TR is created.
This message therefore precedes 'AF %2 replaces AF %5'.
BATCH-project name (=origin of the
Messages
8-5