Requirements For Use; Cpus - Siemens SIMATIC S7-400 Operating Instructions Manual

OPC functions - OPC UA client
In client mode the CP supports the following configuration limits:
● Number of sessions with OPC UA servers
Up to 5 sessions with OPC UA servers at the same time
Per server one or more sessions can be set up at the same time.
● Number of items/node handles
In client mode the CP supports the following number of items:
In total max. 10000, of which:
– Read access: Maximum 10000
– Write access: Maximum 10000
The number of items to be read and written is divided up among the connected servers.
Further connection resources
● TCP connections for HTTPS
For HTTPS access, up to 30 TCP connection resources are available.
When necessary, these TCP connections are used by one or more Web browsers to
display data of the CP.
● PG/OP connections
– 2 connection resources for PG connections
– 10 connection resources for OP connections
1.7

Requirements for use

1.7.1

CPUs

Required S7-400 CPUs and firmware versions
The CP 443-1 OPC UA is released for operation with the following CPUs:
● Standard CPUs with PROFIBUS interface
CPU 400 as of firmware version V5.3
CPUs with a firmware version <V5.3 must be upgraded.
● Standard CPUs with PROFINET interface
CPU 400 as of firmware version V6.0 / V7.0
CP 443-1 OPC UA
Operating Instructions, 01/2017, C79000-G8976-C427-02
Application and functions
1.7 Requirements for use
17