Siemens SIMATIC IM151-1 STANDARD Manual page 11

Configuration with more than 244 bytes of parameter data
For configurations with
6ES7151-1AA05-0AB0 in DPV1 mode with more than 244 bytes of parameter data.
Configuration with the GSD file does not offer this option.
Note
If the parameter length exceeds 244 bytes, a longer station startup time is to be expected.
Interface module IM151-1 STANDARD (6ES7151-1AA06-0AB0)
Manual, 07/2015, A5E01075950-AD
STEP 7
V5.4, it is possible to operate the IM151-1 STANDARD from
Properties
11