Characteristics Of S7 Communication; Performance Data / Operation - Siemens CM 1542-5 Operating Instructions Manual

2.4.5

Characteristics of S7 communication

Characteristics of S7 communication
The following information is important when operating S7 connections:
Table 2- 3
Characteristic
Number of S7 connections via
PROFIBUS
Note
PG or HMI functions or data record routing
If PG or HMI functions or data record routing are used, a suitable number of S7 connections
must be reserved during configuration!
Help provided by STEP 7
The number of connections on PROFIBUS shown in the table above can vary due to other
influencing factors. The STEP 7 configuration tool displays warnings and help messages as
soon as limit values are exceeded.
2.4.6

Performance data / operation

Measured values of transfer or reaction times
Measured values of transfer and reaction times in Ethernet, PROFIBUS and PROFINET
networks for a series of configurations can be found on the Internet:
Link: (https://support.industry.siemens.com/cs/ww/en/view/25209605)
CM 1542-5
Operating Instructions, 11/2018, C79000-G8976-C290-04
Characteristics of S7 connections
2.4 Configuration limits and performance data
Explanation / values
Operable in total: Max. 48
The value depends on the S7-1500 CPU being used.
Product overview, functions
17