Goran Vuckovic

There are to few information. Do you have original source program? Did you have battery issues previously?

Is there SD card installed?

As I'm been informed clones do not have complete compatibility and do not work good with GX Works2 nor with GX IEC Developer, but only with GX Developer. Additionally  SimplePID library is originally made for GX IEC Developer. Also I, personally,  would never use clone for heating radiators due to potential safety issues.

If you are using any tag with object that is in PLC and you don't have communication, object will not be visible.  If you are using bit switch with internal GOT tag, object will be visible. PLC tags are X,Y, D, R, M, SM, SD for Mitsubishi PLCs. Internal GOT tags are GS, GB, GD, etc.

With string type, the nibbles are inverted and it is normal. So registers will be R1070=HEX3032, R1071=HEX6A2E and R1072=HEX626F.  

Usually object can't be seen if there is no communication with PLC. 

Hmm, judging by RD3A command, you are using, I'm presuming it is not original FX3U, but china clone. Am I right?

Maybe you should attach the program, so we can test it.

I'm not Sinumerik expert but the ones I have seen that are 810D were is from beginning of this century. I presume that you can find manufacturing date on sticker.

Q50UDEH  is CPU and it has some intelligent module(s) on the right side of base rack, or in expansion rack. Best thing is to update GxWorks from Mitsubishi site, and try again. Could be that it is some communication or motion module that requires supplementary Mitsubishi application.  Anyway  there is not enough data from your side. Maybe you could post a picture or source from PLC.

You can change  QJ71E71-100 buffer memory from program and by doing that, you can change Destination IP Address.

CC-Link IE and MC Protocol, are not the same protocols. You can add another MC Protocol connection, on the PLC CPU, using UDP, but with different port.

For me CC-link TSN is excellent way to move away from EtherCAT and other ported to the Ethernet CAN based solutions, which have many benefits but some very big drawbacks. Determinism and speed was my reason why I have opted few times EtherCAT, and it was always PITA.

This statement is interesting to me. I'm against any vendor lock, and I don't understand how it is vendor locked (my bad).  See this link: https://www.renesas.com/us/en/blogs/art-networking-series-7-tsn-virtualized-environment It's not related to CC-link IE TSN, but to TSN.

TSN is definitely not exclusive to CC-link, but there are two big advantages comparing to others. First one is called Renesas. Renesas is semiconductor producer and it's shares are owned by Mitsubishi. I saw that Renesas is major chip supplier also for Profinet TSN. Second one is that CC-Link IE TSN implementation for user is extremely simple, both on hardware and software, comparing to others. Disadvantage is that there are not many compliant products, in this moment, but I find that with other TSN solutions even worse.  For example there are not many OPC UA FX(OPC UA over TSN) products in this moment. Good thing is that you can implement other CC-link IE solutions within CC-link IE TSN, although if you do that there are some drawbacks. I personally find CC-link on RS485 obsolete, like any other solution not based Ethernet, especially as motion control likes fiber-optics very much, and I think that TSN is definitely way to go (whatever protocol you find suitable for it).  

It would be recommended. 

It will not reset, but you can make reset by yourself. If you select LC then max value is 4,294,967,295 and I think that it is enough for most applications.

I've recieved it. Thank you. I will try to do some work tonight, and I will post results.

As I stated before, I never had experience with FFP - I was just reading FFP datasheet. If you can send me two examples of FFP values, represented in real format and bit values I could try to do it in ST. Just for fun and it may help to OP.

I read the explanation about the Motorola float format a few minutes ago and if I understood correctly, it is as following: MMMMMMMMMMMMMMMMMMMMMMMMSEEEEEEE (every letter represents bit position) Where M is mantisa, S is sign and E is exponent. On other side IEEE 32 bit float format is: SEEEEEEEEMMMMMMMMMMMMMMMMMMMMMMM Just by looking at it, it seams to that simple bit(s) shifting to the left will convert from Motorola float to IEEE, and shifting to right will convert from IEEE to Motorola float. Just you need to bear in mind to remove or add that extra bit in exponent. Never done it and I have never used Motorola float but it looks like that.

I don't know anything about SAIA, but I really do believe that there ways to copy this registers in memory and convert them bit by bit. I takes little bit of time and little bit of knowledge, but it is doable. 

From menu select Object->Switch->Switch. Then put button where you want. After that select that switch/button properties and first add "Action (Key code)", then select Key Code Type "Alarm display" and Action FFB4/"Check the selected alarm status to "Checked" (Check)", or  FFB5/"Check all the alarm statuses to "Checked" (Check all)". After that add another action, but this time Action(Bit) and select what bit do you want to change in PLC and how.

My advice is to create script that has trigger on data change of mentioned 3 points, not on (time) sample.

How many data point do you transfer? What is the speed of RS232 communication?

You need MR Configurator2, which you can download from Mitsubishi site, and I think that has trial period (not sure). You need to connect MR Configurator2 and servo with USB A to USB mini cable to servo (CN3 if I remember well). After that you can download .mrc2 file to servo, configure drive, diagnose it, program it etc.