Restrictions For Communications Services - Siemens Simatic S7-1500 Function Manual
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- System manual (523 pages) ,
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- Manual (188 pages)
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8.7
Restrictions for communications services
TUSEND / TURCV
When you run the UDP blocks TUSEND and TURCV via the "PLCSIM" communication
interface (Softbus), you get error code 0x80C4 at the transmission end and receiving end:
Temporary communications error. The specified connection is temporarily down.
Remedy
Set "PLCSIM Virtual Ethernet Adapter" (TCP/IP) as the communication interface in PLCSIM
Advanced.
Secure TCP connections
PLCSIM Advanced does not support TLS (Transport Layer Security) and has no certificate
management. It is therefore not possible to establish secure TCP connections from the
simulation.
This means that the following connections are not supported:
● Secure OUC connections (Secure Open User Communication)
● Secure connections to a mail server using TMAIL_C
● HTTPS connections to the Web server
8.8
Restrictions for instructions
PLCSIM Advanced simulates instructions for CPUs S7-1500 and ET 200SP as close to
reality as possible. PLCSIM Advanced checks the input parameters for validity and returns
outputs that are valid but do not necessarily correspond to those that a real CPU with
physical inputs/outputs would return.
Instructions not supported
Unsupported instructions are handled as not ready, their value is always "OK". PLCSIM
Advanced does not support the following instructions:
● DP_TOPOL
● PORT_CFG
S7-PLCSIM Advanced
Function Manual, 12/2017, A5E37039512-AB
8.7 Restrictions for communications services
Restrictions
351
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