AutomationTechBrian
Lifetime Supporting Member
I just read something that I need to dig into a little...
I'm about to start a project where we'll strip out unneeded components of a machine purchased on the used marketplace, before piecing it together with other components to build a larger, but slower, machine. I looked at the PLC and and I noticed it's a safety PLC... I haven't dealt with one of these yet. I did upload the program from the CPU without any issues from the USB port. I'm curious about the red, safety CPU, so I noticed something that said the benefit of using that card was that people couldn't disable safety devices in the program. Hmmm.... really? I'm stripping out much of the "hazardous" part of the machine, which is not intended for the kind of production my customer does, and I'm taking all I/O connections with it. Afterwards, I'll modify the program to cut out all of the supporting logic. So I need to understand what I'm dealing with. Does the safety processor prevent this kind of pruning?
Btw, I could erase the entire memory and write the program from scratch if
needed. But I'd rather modify it than go that route. Do you have any thoughts about what I'll face modifying a program with the a safety PLC processor included?
I'm about to start a project where we'll strip out unneeded components of a machine purchased on the used marketplace, before piecing it together with other components to build a larger, but slower, machine. I looked at the PLC and and I noticed it's a safety PLC... I haven't dealt with one of these yet. I did upload the program from the CPU without any issues from the USB port. I'm curious about the red, safety CPU, so I noticed something that said the benefit of using that card was that people couldn't disable safety devices in the program. Hmmm.... really? I'm stripping out much of the "hazardous" part of the machine, which is not intended for the kind of production my customer does, and I'm taking all I/O connections with it. Afterwards, I'll modify the program to cut out all of the supporting logic. So I need to understand what I'm dealing with. Does the safety processor prevent this kind of pruning?
Btw, I could erase the entire memory and write the program from scratch if
needed. But I'd rather modify it than go that route. Do you have any thoughts about what I'll face modifying a program with the a safety PLC processor included?