User guide

F • DESIGN CONSIDERATIONS AND LIMITATIONS

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Data Transfer

This section describes Data Transfer service considerations.

 The initial release of FactoryTalk Historian ME only supports Data Transfer to a

single FactoryTalk Historian SE server. Collectives are not supported. If data is

required in third-party

historians or other upstream servers, use FactoryTalk

Historian DataLink to move data out of the module. Upcoming product releases

will support alternate Data Transfer destinations.

Observe the following Data Transfer subsystem limits on the module:

 Transfer a minimum of 5,000 events per second to the FactoryTalk Historian SE

archive.

 Transfer a maximum of 150,000 events FactoryTalk Historian SE archive.

Data Storage

This section contains Data Storage considerations. The FactoryTalk Historian ME is

available in two versions: one with 1GB of total storage, and one with 2GB of total

storage.

 Observe the following archive file size limits on the module:

 The 1GB module has an effective archive storage capacity of 0.5GB because

approximately 500MB is used for the operating system, firmware, and log files.

The 2GB module has an effective archive storage capacity of 1.5GB.

 The on-board data storage for the FactoryTalk Historian ME is limited. using a

Data Transfer rate of 2500 events per second (the maximum transfer rate

available) without Compression or Exception Filtering, the on-board storage

capacity is approximately four hours for the 1GB module and 14 hours for the

2GB module. Therefore, Rockwell highly recommends that you include the

Module Type File Size Number of

Files

Disk Space for