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read and Write address from a Modbus TCP/IP device with WinCC V11

Created by: Sardar99 at: 5/2/2012 10:21 AM (7 Replies)

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5/2/2012 10:21 AM	Rate (0)
Sardar99 Posts: 13 Rating: (0)	Dear All I want to use Wincc V11 to read and Write address from a Modbus TCP/IP device, could you tell me the way, I made the Communication driver Modicon modbus TCP/IP in Connections for the HMI, but I dont know how and where to put the modbus function codes and modbus messages. any help will be very appreciated. thanks and best regards.
Sardar99 Posts: 13 Rating: (0)	Last edited by: O_Moderator at: 5/3/2012 11:45 AM new subject after splitting from /tf/WW/en/Posts/24966#top
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5/3/2012 4:00 PM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 1/9/2025 Posts: 1523 Rating: (230)	Sardar99 Dear All I want to use Wincc V11 to read and Write address from a Modbus TCP/IP device, could you tell me the way, I made the Communication driver Modicon modbus TCP/IP in Connections for the HMI, but I dont know how and where to put the modbus function codes and modbus messages. any help will be very appreciated. thanks and best regards. Hello Sardar99, Check these for your requirement Communicating with PLC - Modicon Modbus TCP
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5/8/2012 7:58 PM	Rate (0)
beaker Posts: 17 Rating: (0)	Be careful! I do believe the driver in WinCC will only work with an actual Modicon PLC that communicates with ModBus TCP. ModBus TCP was released by Modicon as a free and open source protocal for use by anyone. There are many vendors that speak ModBus TCP; however, I was told by Siemens that the particular driver in WInCC will not work with these. This is unfortunate because I have many third party skids that are setup for ModBus TCP.
beaker Posts: 17 Rating: (0)
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5/9/2012 7:20 AM	Rate (0)
SteBo Platinum Member Joined: 10/3/2010 Last visit: 1/14/2025 Posts: 1563 Rating: (194)	beaker ModBus TCP was released by Modicon as a free and open source protocal for use by anyone. There are many vendors that speak ModBus TCP If the third party device doesn't work, it might mean that they've change the free and open source protocol, so in fact, they claim to communicate via Modbus but the standard Modbus protocol has been changed. Anyway, I would always try it for all possible CPU types. Heplfull programs (when you understand the Modbus telegrams) to test/check communications are ModScan32 and Wireshark.
	B r g d s , S t e B o SIMATIC HMI in Online Support Forum
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5/9/2012 3:25 PM	Rate (1)
SteBo Platinum Member Joined: 10/3/2010 Last visit: 1/14/2025 Posts: 1563 Rating: (194)	About filtering Modbus in Wireshark: link Brgds.
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This contribution was helpful to 1 thankful Users beaker

5/10/2012 7:11 AM	Rate (0)
SteBo Platinum Member Joined: 10/3/2010 Last visit: 1/14/2025 Posts: 1563 Rating: (194)	In an older thread, someone managed to communicate with a non-Schneider device too HERE Brgds.
	B r g d s , S t e B o SIMATIC HMI in Online Support Forum
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10/9/2018 5:09 PM	Rate (0)
rkc87 Posts: 25 Rating: (0)	Ganes10 Sardar99 Dear All I want to use Wincc V11 to read and Write address from a Modbus TCP/IP device, could you tell me the way, I made the Communication driver Modicon modbus TCP/IP in Connections for the HMI, but I dont know how and where to put the modbus function codes and modbus messages. any help will be very appreciated. thanks and best regards. Hello Sardar99, Check these for your requirement Communicating with PLC - Modicon Modbus TCP This link doesnt work. Could you please update it?
rkc87 Posts: 25 Rating: (0)
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10/10/2018 4:11 AM	Rate (0)
Prof. Frink Platinum Expert Joined: 7/5/2013 Last visit: 1/15/2025 Posts: 3123 Rating: (517)	Hello rkc87, rkc87 Ganes10 Hello Sardar99, Check these for your requirement Communicating with PLC - Modicon Modbus TCP This link doesnt work. Could you please update it? you may find the information here: How do you establish a Modbus/TCP communication from a SIMATIC S7-300/S7-400 and where can you find further information? Regards, Frink
	Pi is exactly three! All you have to do is think of things which people need but which don’t exist yet.
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