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How many HMI panels can you connect to a S71200 CPU via Ethernet or PROFIBUS

Created by: gerbalc at: 2/27/2014 6:26 PM (8 Replies)

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2/27/2014 6:26 PM	Rate (0)
gerbalc Bronze Member Joined: 9/4/2008 Last visit: 4/17/2025 Posts: 1 Rating: (0)	Hello!, I want to know how many HMI Panels (Basic or Comfort) can you connect to a single S71200 CPU via Ethernet and via PROFIBUS. If it is possible to connect them via PROFIBUS which module do I need, the DP master module or the DP slave module? Can anyone give me a helping hand? Thank you very much Regards
	Last edited by: gerbalc at: 2/28/2014 8:23 AM
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2/28/2014 11:21 AM	Rate (2)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 4/4/2025 Posts: 4406 Rating: (1480)	Hi, take a look at http://support.automation.siemens.com/BR/view/en/38051505
	Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 3 thankful Users Navnag capto P_PANDE

5/27/2014 3:05 PM	Rate (0)
O_Moderator Diamond Member Joined: 4/24/2009 Last visit: 8/20/2024 Posts: 2682 Rating: (135)	New question splitted to how many WinCC 7.2 can i connect to the s7-1200?. Best regards O_Moderator
	Tips&Tricks for the forum usage
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5/27/2014 8:18 PM	Rate (0)
Navnag Platinum Member Joined: 11/21/2007 Last visit: 3/31/2025 Posts: 2326 Rating: (309)	Pegaia Hi, take a look at http://support.automation.siemens.com/BR/view/en/38051505 In Short : The S7-1200 CPU provides dedicated HMI connections to support up to 3 HMI devices.
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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This contribution was helpful to 3 thankful Users Bijoy Roy peter cech qwemx

5/28/2014 7:24 AM	Rate (0)
Prats Posts: 272 Rating: (4)	i think with the release of latest version he communication resource for HMI have been increased. Havent tested it though.
Prats Posts: 272 Rating: (4)
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5/28/2014 9:42 AM	Rate (0)
Navnag Platinum Member Joined: 11/21/2007 Last visit: 3/31/2025 Posts: 2326 Rating: (309)	Prats i think with the release of latest version he communication resource for HMI have been increased. Havent tested it though. Hello Prats The Link posted by Pegaiaprovides you the latest information. There is no change in no of HMI connections in new Firmware V 3.0 , however there is a change in Profibus / Profinet connections : S7-1200 CPU with firmware version V2.02 to V2.2 For PROFINET, the S7-1200 CPU supports a maximum of 8 PROFINET IO devices and 128 submodules, whichever of the two is reached first. PROFIBUS supports a maximum of 16 DP slaves on one DP master with a maximum of 256 submodules per DP slave. A maximum of 16 DP slaves and IO devices altogether is supported. S7-1200 CPU with firmware version V3.0 or higher As from firmware version V3.0 the S7-1200 CPU supports 16 PROFINET IO devices with a maximum of 256 submodules. PROFIBUS supports 32 DP slaves with a maximum of 512 submodules per DP slave. Hope this helps Cheers Navnag
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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This contribution was helpful to 1 thankful Users vipz

11/7/2014 1:18 AM	Rate (0)
OscarAiisa Posts: 2 Rating: (0)	What about this configuration with 9 HMI in only one s7-1200 in TIA 13 ? ... after compilation there is no error. The firmware configured in a 1412C is V2.2 as you can see in the picture. Attachment TIA13_9HMI.jpg (446 Downloads)
OscarAiisa Posts: 2 Rating: (0)
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11/7/2014 3:40 PM	Rate (2)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 4/17/2025 Posts: 15809 Rating: (2496)	OscarAiisa What about this configuration with 9 HMI in only one s7-1200 in TIA 13 ? ... after compilation there is no error. The firmware configured in a 1412C is V2.2 as you can see in the picture. That just means you can download 9 different HMI projects. You still have limited number of concurrent connections to manage. I can compile a lot of things that never work in the real world, error free! The error is not in the project. The error is ignoring good advice and the system manual and specifications of the provided PLC. You want that many HMI connections, move up to the S7-1500. Even an entry level S7-1500 could manage your connections and use your S7-1200 as an I-Device for remote I/O.
	science guy
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11/7/2014 6:42 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 4/17/2025 Posts: 15809 Rating: (2496)	Ok, it "depends". See the attached image from the 5/14 Update to the S7-1200 system manual. Attachment S7-1200_Connections_052014.jpg (871 Downloads)
	science guy
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This contribution was helpful to 2 thankful Users H-H shorty2

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