Siemens SIMATIC S7-1500 Manual page 13

Product overview
2.1 New functions
New functions Applications
API (Application The CPU has a web-based API (Ap-
Programming plication Programming Interface)
Interface) as an interface for reading and
writing CPU data.
The API supports all conventional
browsers and command line pro-
grams, such as cURL and Wget.
Cross-device Coordination of traces on different
trace devices
• Support of multiple CPUs
• Support of different device
types
Visualization in a shared chart
Support of alternative trigger
sources
12
Customer benefits
• Established standard mechanisms
for creating Web pages:
Automation Web Programming
commands (AWP commands) are
no longer required for output of
CPU data
• No dependency between custom
web pages and CPU program:
No synchronization between user
program and Web server required
by the SFC 99 instruction
• Lower communication load:
A smaller data packet is trans-
ferred between server and client
(JSON instead of HTML of the
custom Web page generated by
the CPU). This improves the
communication performance.
The CPU needs less runtime to
generate the information and
make it available.
• Secure data traffic:
API exclusively supports the
"HTTPS" transfer protocol
• Extensive trigger options for
faster localization of sporadically
occurring errors
• Simple combination of related
traces
CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
Equipment Manual, 07/2021, A5E40882737-AB
Where can I find infor-
mation?
Web server function manu-
al
(https://support.industry.sie
mens.com/cs/ww/en/view/5
9193560)
Function manual for trace
and logic analyzer function
(https://support.industry.sie
mens.com/cs/ww/en/view/6
4897128)