Firmware Functions - Siemens SIMATIC S7-1500 Manual

Product overview

3.4 Firmware functions

3.4 Firmware functions
Functions
The CPU supports the following functions:
Function
Integrated system
diagnostics
Integrated web server
Integrated trace
functionality
OPC UA
22
Description
The system automatically generates the messages for the
system diagnostics and outputs these messages via a
programming device/PC, HMI device, the web server or
the integrated display. System diagnostics information is
also available when the CPU is in STOP mode.
The web server lets you access the CPU data by means of
a network. Evaluations, diagnostics, and modifications
are thus possible over long distances. Monitoring and
evaluation is possible without STEP 7, only a web
browser is required. Note that you must take appropriate
measures to protect the CPU from compromise (such as
restricting network access, using firewalls).
Trace functionality supports you in troubleshooting
and/or optimizing the user program.
You record device tags and evaluate the recordings with
the trace and logic analyzer function. Tags are, for
example, drive parameters or system and user tags of a
CPU.
The device saves the recordings. You can read out and
permanently save the recordings with the configuration
system (ES), if required. The trace and logic analyzer
function is therefore suitable for monitoring highly
dynamic processes.
The trace record can also be displayed through the web
server.
With the project trace, you record the variables of mul­
tiple devices within a project, for example, a controller
and a drive.
With the long-term trace, you record up to 64 different
tags for each cycle in a .csv file over a long period (e.g.
hours, days).
With OPC UA, you can exchange data via an open and
manufacturer-neutral communication protocol.
The CPU can act as OPC UA server. The CPU acting as the
OPC UA server can communicate with OPC UA clients.
In turn, as an OPC UA client, the CPU can access an OPC
UA server, allow the OPC UA server to run methods and
read out information from the OPC UA server.
Through OPC UA Companion Specification, methods can
be specified in a uniform and vendor-neutral way. Using
these specified methods, you can easily integrate devices
from various manufacturers into your plants and produc­
tion processes.
Additional information
Diagnostics function manual
(https://support.automation.siemens.
com/WW/view/en/59191792)
• Web server function manual
(https://support.automation.
siemens.
com/WW/view/en/59193560)
• Security with SIMATIC S7 control­
lers system manual
(https://support.industry.siemens.
com/cs/ww/en/view/90885010)
Using the trace and logic analyzer
function function manual
(https://support.automation.siemens.
com/WW/view/en/64897128)
Communication function manual
(https://support.industry.siemens.
com/cs/ww/en/view/59192925)
CPU 1518T-4 PN/DP (6ES7518-4TP00-0AB0)
Equipment Manual, 11/2022, A5E50479758-AB