Siemens SIMATIC ET 200SP Function Manual

Connection resources
11.2 Allocation of connection resources
Communication
Function Manual, 11/2019, A5E03735815-AH
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Monitoring the maximum possible number of connection resources
Offline
During configuration of connections, STEP 7 monitors the occupation of the connection
resources. If the maximum possible number of connection resources is exceeded, STEP 7
signals this with a suitable warning.
Online
The CPU monitors the use of connection resources in the automation system. If you
establish more connections in the user program than those provided by the automation
system, the CPU acknowledges the instruction to establish the connection with an error.
S7-1500 and S7-300 comparison
You will find a comparison of how the communication resources of the S7-1500 and S7-300
are managed in this FAQ (https://support.industry.siemens.com/cs/ww/en/view/109747092
).

Siemens SIMATIC ET 200SP Specifications

General

System Type	Distributed I/O System
Mounting	DIN Rail
Communication Protocol	PROFINET, PROFIBUS
IP Rating	IP20
Category	I/O Systems
Supply Voltage	24 V DC
Modularity	Yes
Hot Swapping	Yes
Storage Temperature	-40°C to +70°C
Digital Inputs	Yes
Digital Outputs	Yes
Analog Inputs	Yes
Analog Outputs	Yes
Communication Interface	PROFINET, PROFIBUS
Number of Modules	Up to 64
Relative Humidity	5 to 95% (non-condensing)
Operating Temperature	-25°C to +60°C