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Unable to find the CPU via Accessible Devices

Created by: Saradhi at: 10/30/2012 1:50 PM (6 Replies)

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10/30/2012 1:50 PM	Rate (0)
Saradhi Posts: 303 Rating: (3)	I can't find any accessible device when i want to connect to a 1214 dc/dc/dc but i can download the project to target cpu, their is no problem with the ping, i tried S7-1200 tool and PST v 4.1, still i can't find any accessible device. Please help me to solve the problem.
Saradhi Posts: 303 Rating: (3)
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10/30/2012 2:07 PM	Rate (0)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16325 Rating: (2520)	Saradhi I can't find any accessible device when i want to connect to a 1214 dc/dc/dc but i can download the project to target cpu, their is no problem with the ping, i tried S7-1200 tool and PST v 4.1, still i can't find any accessible device. Please help me to solve the problem. On my portal installation, I typically have 3 network devices to select, only 1 of which actually works to connect to online devices. However, I can generally pick 2 or more for downloading. I think if the PST will not see the plc, it may require either a plc reboot or a pc reboot to function. I have seen that happen before where I could download just fine, but could not see it using the accessible devices option.
	science guy
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10/31/2012 2:24 AM	Rate (0)
Saradhi Posts: 303 Rating: (3)	That means i have put all my network cards turn on while installing TIA PORTAL
Saradhi Posts: 303 Rating: (3)
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10/31/2012 3:35 AM	Rate (0)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16325 Rating: (2520)	Saradhi That means i have put all my network cards turn on while installing TIA PORTAL I am not quite sure how you came to this conclusion from what I said. Sorry if that is how it came across. Try the reboot of the plc, then the pc if that does not work. Make sure the firmware you are using in the plc is the latest available as there have been buggy firmware released in the past. If you are using firmware 3.0.1, there is a news item stating if you contact Siemens support using the support request requesting 3.0.1, they will providea link to download it. Be careful you need the update as it might give you new problems.
	science guy
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10/31/2012 11:19 AM	Rate (0)
Saradhi Posts: 303 Rating: (3)	i have two adapters 1. lan-to-usb adapter (with this i can download but can't find CPU via accessible devices). 2. wireless adapter (with this i can able to find the CPU via accessible devices and download the program). My Configuration a. TIA Portal v11 sp1 and windows7. b. Firmware version is 2.1 CPU 1214 DC/DC/DC.
Saradhi Posts: 303 Rating: (3)
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10/31/2012 2:55 PM	Rate (0)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16325 Rating: (2520)	Saradhi i have two adapters 1. lan-to-usb adapter (with this i can download but can't find CPU via accessible devices). 2. wireless adapter (with this i can able to find the CPU via accessible devices and download the program). My Configuration a. TIA Portal v11 sp1 and windows7. b. Firmware version is 2.1 CPU 1214 DC/DC/DC. My suggestions: a. update to Portal V11 SP2, then install Update 4 b. Update firmware to V2.2. Versions below 2.2 have issues. Perhaps one of those issues is being accessible. The latest version of the portal may be enough to correct the problem (with all the updates). Ifnot, firmware update may correct it.
	science guy
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11/2/2012 9:38 PM	Rate (0)
Saradhi Posts: 303 Rating: (3)	ok. but why itis working with wireless and not working with usb-to-lan adapter.
Saradhi Posts: 303 Rating: (3)
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