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S7-1200 connections

Created by: _spak at: 9/30/2014 7:37 AM (2 Replies)

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9/30/2014 7:37 AM

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_spak

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Hello,
need some clarification on S7-1200 connections.
S7-1200 manual states that:

Table: Communication

Technical data	CPU 1211C	CPU 1212C	CPU 1214C
Communication Data rates Isolation (external signal to PLC logic) Cable type	1 Ethernet port 10/100 Mb/s Transformer isolated, 1500 VDC CAT5e shielded	1 Ethernet port 10/100 Mb/s Transformer isolated, 1500 VDC CAT5e shielded	1 Ethernet port 10/100 Mb/s Transformer isolated, 1500 VDC CAT5e shielded
Devices	3 HMI¹ 1 PG	3 HMI¹ 1 PG	3 HMI¹ 1 PG
Ethernet connections²	8 (active or passive)	8 (active or passive)	8 (active or passive)
CPU-to-CPU S7connections (GET/PUT)	8 (client) 3 (server)	8 (client) 3 (server)	8 (client) 3 (server)

I'm wonderind how many connections is really possible:
8 (ethernet) + 3 (HMI) + 1 (PG) or you have 8 connections only(for HMI and other communication)?

Let' say I need to communicate to 6 Modbus TCP slaves + CPU needs to be Modbus TCP Server + I need to connect CPU to WinCC? Is this possible with S7-1200?

10/1/2014 7:53 AM	Rate (0)
Fafner Silver Member Joined: 3/20/2013 Last visit: 3/11/2025 Posts: 676 Rating: (44)	there are 8 connections possible for the ethernet ports. That means: overall 8 connections. If you use them all for, let's say, S7-communication to other controllers than you are not able to connect to an HMI. your quantity structure sounds correct.
	Best Regards, Fafner
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10/1/2014 7:11 PM	Rate (0)
_spak Posts: 55 Rating: (0)	Ok, thanks. That makes sense. 6 client + 1 server + 1 wincc connection, total of 8 connections. How about PG in this case?
_spak Posts: 55 Rating: (0)
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S7-1200 connections

Created by: _spak at: 9/30/2014 7:37 AM (2 Replies)

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