# S7-1500R/H Redundant family communication **URL:** \ **Category:** Ignition\ **Created:** [January 27, 2020, 7:10pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653 "2020-01-27T19:10:13Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![mohamad.tayara](https://avatars.discourse-cdn.com/v4/letter/m/977dab/32.png) [@mohamad.tayara](https://forum.inductiveautomation.com/u/mohamad.tayara)\ **Post date:** [January 27, 2020, 7:10pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/1 "2020-01-27T19:10:13Z")
Hi, i would like to know if the Siemens driver for ignition supports the communication with the redundant CPU family S7 1500R/H. the reason i am asking is that the PUT/GET Instructions are not available for the redundant model as well as the OPCUA protocol. Also is there other modern protocols that are supported for communication with ignition (other than Modbus TCP, that support Datablock and or Symbolic addressing). Thanks in advance. ---
**Author:** ![chi](https://avatars.discourse-cdn.com/v4/letter/c/0ea827/32.png) [@chi](https://forum.inductiveautomation.com/u/chi)\ **Post date:** [January 27, 2020, 8:13pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/2 "2020-01-27T20:13:41Z")
No, Ignitions driver supports only the legacy S7-300 communcation (put/get). You have to use a 3rd party OPC-UA server to connect to a 1500 with the current protocol and use symbolic addressing. ---
**Author:** ![craigb](https://avatars.discourse-cdn.com/v4/letter/c/9f8e36/32.png) [@craigb](https://forum.inductiveautomation.com/u/craigb)\ **Post date:** [January 28, 2020, 2:33pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/3 "2020-01-28T14:33:47Z")
I may have misread your answer and apologies If i did. Ignition supports 1500 CPU’s out the box, at least the ‘standard’ versions anyway. I use fail safe 1500’s and they connect fine. ---
**Author:** ![chi](https://avatars.discourse-cdn.com/v4/letter/c/0ea827/32.png) [@chi](https://forum.inductiveautomation.com/u/chi)\ **Post date:** [January 28, 2020, 4:23pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/4 "2020-01-28T16:23:25Z")
Ignition can connect to S7-1500 cpu’s only if the legacy put/get protocol is enabled. With this setting the internal security mechanisms of the processor are bypassed. Although hthis is no problem as long as an external firewall is in place i would not accept it in a fail safe environment. Also you have no access to standard optimized datablocks. That prevents internal optimizations and is definitely not the way to go. Siemens programming guidelines deprecated legacy datablocks a long time ago. We may discuss the use of the word ‘supported’, but if i have to stick to the possibilities of a S7-300 when using a 1500 begrüße of a scada system i would call it possible but not recommendable. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [January 28, 2020, 4:33pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/5 "2020-01-28T16:33:04Z")
For S7-1200 and S7-1500 connecting with OPC UA is the best practice and the only supported future. I understand from OP that the OPC UA server may not be available on the redundant version but hopefully Siemens will address this in the future. ---
**Author:** ![nideyijuyidong](https://avatars.discourse-cdn.com/v4/letter/n/7cd45c/32.png) [@nideyijuyidong](https://forum.inductiveautomation.com/u/nideyijuyidong)\ **Post date:** [July 4, 2023, 2:31am UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/6 "2023-07-04T02:31:21Z")
Any news? Is there any solution for Ignition to communicate with S7-1500R/H? ---
**Author:** ![nideyijuyidong](https://avatars.discourse-cdn.com/v4/letter/n/7cd45c/32.png) [@nideyijuyidong](https://forum.inductiveautomation.com/u/nideyijuyidong)\ **Post date:** [July 5, 2023, 3:10am UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/7 "2023-07-05T03:10:36Z")
This is the architecture I got from a Siemens support engineer. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/5/d5c4fb742de293c8722832199e859d1f265ce8e4.png) The data must be moved to the common PLC outside the redundant system through the switch, and then connected with ignition. ---
**Author:** ![nideyijuyidong](https://avatars.discourse-cdn.com/v4/letter/n/7cd45c/32.png) [@nideyijuyidong](https://forum.inductiveautomation.com/u/nideyijuyidong)\ **Post date:** [August 1, 2023, 1:37am UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/8 "2023-08-01T01:37:24Z")
Update, the common PLC is not nessessary. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/f/cfdb6932541a99cfa81d2783ca893dfc3f3e913f.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/8/68529296ea96a78523c8804cc88eb4ad7ad9939f.png) Ignition can connect 1500R/H PLC directly. ---
**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\ **Post date:** [August 1, 2023, 7:56am UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/9 "2023-08-01T07:56:25Z")
> [@nideyijuyidong](#): > > Ignition can connect 1500R/H PLC directly. is it ever supported with **OPCUA**? Few months ago S7-1500H could not server opcua in redundant mode. ---
**Author:** ![nideyijuyidong](https://avatars.discourse-cdn.com/v4/letter/n/7cd45c/32.png) [@nideyijuyidong](https://forum.inductiveautomation.com/u/nideyijuyidong)\ **Post date:** [August 1, 2023, 11:38am UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/10 "2023-08-01T11:38:57Z")
No, I've heard that's two or three years away. ---
**Author:** ![Ali\_Ali](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@Ali\_Ali](https://forum.inductiveautomation.com/u/Ali_Ali)\ **Post date:** [September 21, 2023, 9:32am UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/11 "2023-09-21T09:32:13Z")
> Ignition can connect 1500R/H PLC directly. Can you explain how ? I have a S7-1500R system, what topology and architecture do I need to communicate with Ignition directly? What components and configurations? ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [September 21, 2023, 12:37pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/12 "2023-09-21T12:37:02Z")
> [@Ali\_Ali](#): > > Can you explain how ? > [@chi](#): > > Ignition can connect to S7-1500 cpu’s only if the legacy put/get protocol is enabled. See Ignition's Siemens driver instructions for the changes needed in the PLC and the addressing formats you will need to use on the Ignition side. ---
**Author:** ![nideyijuyidong](https://avatars.discourse-cdn.com/v4/letter/n/7cd45c/32.png) [@nideyijuyidong](https://forum.inductiveautomation.com/u/nideyijuyidong)\ **Post date:** [September 22, 2023, 1:18am UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/13 "2023-09-22T01:18:34Z")
There is **System IP address for switched communication**. That's the IP address for two PLCs system. It is available after main/backup switch. So there is only one "device" for Ignition. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/c/dc99c841681ce8f47121004755381e47ac85b195.png) ---
**Author:** ![Kevin\_Berger](https://avatars.discourse-cdn.com/v4/letter/k/7c8e57/32.png) [@Kevin\_Berger](https://forum.inductiveautomation.com/u/Kevin_Berger)\ **Post date:** [February 26, 2024, 2:46pm UTC](https://forum.inductiveautomation.com/t/s7-1500r-h-redundant-family-communication/31653/14 "2024-02-26T14:46:55Z")
Siemens added OPC UA to the R and H series in V19 - [https://support.industry.siemens.com/cs/document/109824627/new-firmware-version-v3-1-for-simatic-s7-1500-r-h-cpus](https://support.industry.siemens.com/cs/document/109824627/new-firmware-version-v3-1-for-simatic-s7-1500-r-h-cpus) You do also need to use the SiOME tool to get the OPC addresses to be symbolic, and not integer based. [https://support.industry.siemens.com/cs/document/109755133/siemens-opc-ua-modeling-editor-(siome)?dti=0&lc=en-US](https://support.industry.siemens.com/cs/document/109755133/siemens-opc-ua-modeling-editor-(siome)?dti=0&lc=en-US)