Basics For Calculating The Performance Of Both Operating Modes - Siemens SIMATIC BATCH Operating Manual

Redundant SIMATIC servers increase robustness and protect against failures. For the AS-
based mode, a BATCH server pair must always have a network connection to the terminal
and to the plant bus.
The automation system (AS) is connected to the plant bus and communicates with the servers.
You run process control and process operation on clients.
Process cell design
Important characteristic values for the dimensions of your batch process cell are as follows:
● Number of automation systems per batch process cell
● Number of clients per batch process cell
● Number of servers per batch process cell
● Number of batch process cells in a process control system
● Here, you need to take the performance specifications of SIMATIC PCS 7 into account.
Additional information
PCS 7 - Configuration Manual Engineering System, Connecting Network Nodes to Ethernet
●
● PCS 7 - PC Configurations and Authorizations
3.6.3

Basics for calculating the performance of both operating modes

The data shown provides you with guide values that indicate which load states related to typical
data or basic data can be reached in your BATCH process cell both in PC-based and AS-based
mode and how you can select suitable dimensions for your process cell. This allows you to
estimate overload situations in advance and to include these in your planning.
The measured results are shown in the following section "Measured results for calculating the
performance of both modes".
Hardware and software basics
The following hardware and software was used:
● Automation system used CPU 417-4XT05-0AB0
● The PC used for the measurements is equipped with the hardware recommended by
SIMATIC PCS 7
● In PC-based mode, the blocks relevant to SIMATIC BATCH are installed in OB32 (1 second
cycle), recommendation from the section "Introduction" (Page 143)
SIMATIC BATCH V8.2
Operating Manual, 02/2016, A5E35958174-AA
Product introduction and installation
3.6 Configuration limits
69