Real in Siemens DB

[Albin_Auto]

Hello. I'm new in Ignition and have a little problem with Siemens tag, I'm using PLC S7-1500 and Ignition Design 8.1.32.

In my project there are a lot of REAL data type and I want to add to my OPC tag Ignition. But when I try to make a new tag, there are nothing REAL data type. Then I try DOUBLE and FLOAT but still not working. The error "bad_configurationerror".

I've read documentation from Ignition Siemens - Ignition User Manual 7.9 - Ignition Documentation (inductiveautomation.com) and from this list REAL is available. But when I read Tag Data Types - Ignition User Manual 8.1 - Ignition Documentation (inductiveautomation.com) REAL is dissapear. I've followed the instruction OPC Item Path and it's work for other data type.

Can anyone tell me other documentation or help me to solve this problem? Thank You.

[zxcslo]

In Ignition, you choose FLOAT for REAL tags in Siemens.
The syntax is correct: [s7-1500]DB12, REAL396.

Are you sure, that in Siemens, in DB12, on offset DBD396, there's a REAL type...?

[Albin_Auto]

Thanks for your reply. Yes, my DB is 12, and data type REAL on offset 396

[Albin_Auto]

I've try for other DB and it's work, maybe there is something in DB12 but I'm still looking for the problem. Thanks for your help

[zxcslo]

Can you upload DB12 to PLC again?
And make sure, that there is NO check at 'Optimized BLock Access' (right click on DB and Properties).

[Albin_Auto]

Ah yes, it seems like I forgot about this DB, even though I had unchecked the other DB before