Group various Digital signals into bytes

eKoh

Hello there!

I am simulating communication with PlcSim, but I need to send this information in bytes. For example let's say I have these digital output signals:

PLC_do_User_01
PLC_do_User_02
...
PLC_do_User_08

How can I group these into a byte?

And later on, connect that resulting byte within the Design of the Station Logic? As shown (incorrectly for now) in the following picture.



I would appreciate any help, thank you guys!

P.S. I am using RSConnectGIOToSnap7 Add-In.

DenisFR

Hello,

You can make group in your controller, or you can use RSConnectDIOToSnap7.

eKoh

DenisFR said:

Hello,

You can make group in your controller, or you can use RSConnectDIOToSnap7.

The DIO block has a limitation to 20 signals and also, I need to connect 1024 signals, thats why I am not going to use it.

But how to make group in my controller? I am clueless to be honest.

nomad5t5

For a virtual signal, click on I/O system, right click on signal and select "add".



For a real signal,  the only difference is the mapping:

eKoh

nomad5t5 said:

For a virtual signal, click on I/O system, right click on signal and select "add".


For a real signal,  the only difference is the mapping:

Thank you for your response!

I misexplained my issue. Let me expose the problem:



I have these 32 Digital Inputs that I want to group into 4 Groupal Inputs (let's say virtual signals).

The question is: How can I connect 8 signals into 1 Groupal signal?

My dummy solution was to write that code in RAPID in the background task I have on my controller, but that would be a really messy code. I am looking for a more elegant solution if possible.

Thank you guys for the response!

graemepaulin

Your snip is of real signals so in the device mapping (shown in Nomad's snip) you put in the start bit and the end bit of each group --> GI1  = 0-7, GI2  = 8-15, GI3 = 16-23, GI4 = 24-31.

The bit mapping on I/O devices normal start at 0, so your 32 bit would go from 0 to 31.

eKoh

graemepaulin said:

Your snip is of real signals so in the device mapping (shown in Nomad's snip) you put in the start bit and the end bit of each group --> GI1  = 0-7, GI2  = 8-15, GI3 = 16-23, GI4 = 24-31.

The bit mapping on I/O devices normal start at 0, so your 32 bit would go from 0 to 31.

Man, thank you a lot! It did work!!!