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Modbus Redundant connection to DeltaV Emerson

Created by: Biagio at: 2/13/2012 12:34 PM (7 Replies)

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2/13/2012 12:34 PM	Rate (0)
Biagio Posts: 31 Rating: (1)	Good morning, a customer need to switch the actual WinCC to DeltaV DCS. The automation system iscomposed by twoS7-400H. The communication protocol is the Modbus TCP. I need to install the ModbusTCP Red V1 on S7-400Hs because I've the CP 6GK7 443-1EX11-0XE0 and 6GK7 443-1EX10-0XE0. Can I use the V1 or I need absolutely the V2? What I need to consider to execute the switch on modbus data exchange? Thanks
Biagio Posts: 31 Rating: (1)
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2/13/2012 12:55 PM	Rate (0)
Sakura Silver Member Joined: 9/22/2010 Last visit: 7/25/2024 Posts: 225 Rating: (28)	When using the CPs 6GK7 443-1EX11-0XE0 and 6GK7 443-1EX10-0XE0, you definitely need to use ModbusTCP Red V1. It is not possible to use V2 with these CPs, since they don't support the FC10 AG_CNTRL which is needed by V2.

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2/13/2012 3:47 PM	Rate (0)
Biagio Posts: 31 Rating: (1)	Thanks, for the second question, is it possible to read/write directly from DeltaV to PLC or I need to write the interface software on PLC?
Biagio Posts: 31 Rating: (1)
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2/13/2012 9:43 PM	Rate (0)
Wüstenräuber Gold Expert Joined: 10/3/2008 Last visit: 8/28/2024 Posts: 961 Rating: (124)	Hi, it's not possible to read/write modbus registers directly from S7 to DeltaV. You need the modbus block which maps the modbus registers in the data blocks and sends/receives the telegrams. Wüstenräuber
	Last edited by: Wuestenraeuber at: 2/13/2012 9:44 PM
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2/13/2012 10:54 PM	Rate (0)
Biagio Posts: 31 Rating: (1)	Thanks, Did you have a simple program example with red v.1? Where can i found the red v1 package, to test before buy license? Thanks
Biagio Posts: 31 Rating: (1)
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2/14/2012 7:38 AM	Rate (0)
Wüstenräuber Gold Expert Joined: 10/3/2008 Last visit: 8/28/2024 Posts: 961 Rating: (124)	Hi, no, Red V1 is not downloadable. Wüstenräuber

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2/14/2012 8:12 AM	Rate (0)
Biagio Posts: 31 Rating: (1)	Thanks, But i need only buy it?
Biagio Posts: 31 Rating: (1)
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2/14/2012 8:25 AM	Rate (0)
Wüstenräuber Gold Expert Joined: 10/3/2008 Last visit: 8/28/2024 Posts: 961 Rating: (124)	Hi, for this (old) version and old hardware there is no demo version. You must buy it to use it. The other possibility is to download "ModbusTCP CP V4.x" to try the modbus communication. There is no redundancy in this version, but you can test the modbus communication. Wüstenräuber

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