Expanded Memory; Determining Memory Requirements With The Simatic Manager - Siemens SIMATIC S7-400H Manual

4.5

Expanded Memory

Determining Memory Requirements with the SIMATIC Manager

You can have the block length displayed offline in the dialog field "Properties -
Block folder offline" (Blocks –> Object Properties –> Blocks tab).
The following lengths are shown in the offline view:
• Size (sum of all blocks without system data) in the load memory of the PLC
• Size (sum of all blocks without system data) in the working memory of the PLC
Block lengths from the programming device (PG/PC) are not shown in the
properties of the block container.
Block lengths are shown in "byte" units.
The following values are shown in the properties of the block:
• Required number of local data: size of the local data in bytes
• MC7: size of the MC7 code in bytes, or size of the DB user data
• Size of the load memory in the programmable controller
• Size of the working memory in the programmable controller: only displayed if
hardware assignment is recognized.)
For display purposes, it does not matter whether the block is located in the window
of an online view or an offline view..
When a block container is opened and "View Details" is set, the RAM requirements
are shown in the project window regardless whether the block container in the
window is an online or offline view.
You can sum the block lengths by marking all of the relevant blocks. In this case
the sum of the marked blocks will be shown in the status line of the SIMATIC
Manager.
No lengths are shown for blocks (e.g. VATs) that cannot be loaded in the PLC.
Block lengths on the programming system (PG/PC) are not shown in the view
details.
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Installation of a CPU 41x-H
4-15