# Read/write tags from ET200SP problem **URL:** \ **Category:** Ignition\ **Created:** [February 7, 2020, 9:38am UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037 "2020-02-07T09:38:46Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![sarmad.al-rubaye](https://avatars.discourse-cdn.com/v4/letter/s/a5b964/32.png) [@sarmad.al-rubaye](https://forum.inductiveautomation.com/u/sarmad.al-rubaye)\ **Post date:** [February 7, 2020, 9:38am UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037/1 "2020-02-07T09:38:46Z")
Hi all, I have Problem with read and write to a tags, I used ET200SP cpu and the Connection is done, but I still can’t read or write to a tags that connected to the unoptimised global DB, by the way the put and get also checkd by cpu configuration, so have any one idea About a solution for this Problem?? regards ---
**Author:** ![eduardogarcia](https://avatars.discourse-cdn.com/v4/letter/e/8baadc/32.png) [@eduardogarcia](https://forum.inductiveautomation.com/u/eduardogarcia)\ **Post date:** [February 7, 2020, 12:38pm UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037/2 "2020-02-07T12:38:13Z")
Hey Sarmad, Have you tried checking the protection level? I’m guessing you are using the S7 protocol, although that is not a bad choice, I would check if that CPU isn’t capable of running an embedded OPC-UA Server, that would make things smoother and safer for you. ![protLevel](https://us1.discourse-cdn.com/inductiveautomation/original/2X/6/64513b071cdef07a151431070e6530e53cc47a61.png) ---
**Author:** ![Radim](https://avatars.discourse-cdn.com/v4/letter/r/f0a364/32.png) [@Radim](https://forum.inductiveautomation.com/u/Radim)\ **Post date:** [February 7, 2020, 12:42pm UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037/3 "2020-02-07T12:42:12Z")
Hi Sarmad, up till now I didn’t have such troubles to R/W to ET200SP. There are I guess two possibilities you can try: 1. In CPU setting you set PUT/GET what is OK, just abow this tab is Access level. Acc. to Ignition recommendation the Full access without password must be set. 2. In DB you can set three columns (default is set) Visibility from HMI/OPC UA Writeability from HMI/OPC UA Accessibility from HMI/OPC UA Try to check both. Radim ---
**Author:** ![sarmad.al-rubaye](https://avatars.discourse-cdn.com/v4/letter/s/a5b964/32.png) [@sarmad.al-rubaye](https://forum.inductiveautomation.com/u/sarmad.al-rubaye)\ **Post date:** [February 7, 2020, 12:48pm UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037/4 "2020-02-07T12:48:33Z")
![connection](https://us1.discourse-cdn.com/inductiveautomation/original/2X/9/9b689bbaf427d9a4ae734cf7841b542ab0018c52.jpeg) ![db](https://us1.discourse-cdn.com/inductiveautomation/original/2X/7/7e6cacfce4d22914c4d42985455d6bb8d9f7715f.jpeg) ![et200sp](https://us1.discourse-cdn.com/inductiveautomation/original/2X/0/065016011b7d28cf96e64128015acd7c7ae7075a.jpeg) ![tags_problem](https://us1.discourse-cdn.com/inductiveautomation/original/2X/a/a04bc1292a258572696ee9078a87d4f643c8393f.jpeg) every Things is ok from cpu side!! ---
**Author:** ![Radim](https://avatars.discourse-cdn.com/v4/letter/r/f0a364/32.png) [@Radim](https://forum.inductiveautomation.com/u/Radim)\ **Post date:** [February 7, 2020, 12:55pm UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037/5 "2020-02-07T12:55:11Z")
HMMM, strange. If i know there is possible to use “S7-1200” and “S7-1500” CPU. Do you use correct Ignition driver? I have no idea where is a difference but two different driver were issued. Another thing is Firewall. Did you kill it? Or at least open port for Profinet? I don’t remember port number… 🤪 ---
**Author:** ![Radim](https://avatars.discourse-cdn.com/v4/letter/r/f0a364/32.png) [@Radim](https://forum.inductiveautomation.com/u/Radim)\ **Post date:** [February 7, 2020, 1:01pm UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037/6 "2020-02-07T13:01:50Z")
I have faced the simillar problem. I used existing tag names connected in past to Schneider CPU with the same Device name just with different driver. I have used A1\_N1FX with Schneider PLC, deleted this device, created new one A1\_N1FX with Siemens S7-1200, changed Device name in Tag OPC configuration but it didn’t work after I changed device name to A1\_N1FX\_SIE (other than former one) and changed it in Tag OPC configuratin it start work well. It looks strange but this way helped me to get working app. ---
**Author:** ![sarmad.al-rubaye](https://avatars.discourse-cdn.com/v4/letter/s/a5b964/32.png) [@sarmad.al-rubaye](https://forum.inductiveautomation.com/u/sarmad.al-rubaye)\ **Post date:** [February 7, 2020, 1:22pm UTC](https://forum.inductiveautomation.com/t/read-write-tags-from-et200sp-problem/32037/7 "2020-02-07T13:22:06Z")
thank you Radim for your Reply, I tried to chnage the device Name and I delete evey Things and created again but it doesn’t work, the device connected but there are no read write, I found the following 🙂 ![opc_ua](https://us1.discourse-cdn.com/inductiveautomation/original/2X/a/a8e92c03588fd158cae01426a37051c02b07fffe.jpeg) ![opc_ua2](https://us1.discourse-cdn.com/inductiveautomation/original/2X/d/d258a5e9c8e662d9ade65fab9080b9474f6bd578.jpeg) the opc Server fault!! I couldn’t know the reasons? could you help?