OK I am new school guy. I like networking because we can get a lot of data from the drives.
So I have been talking to several guys about how they would do some simple drive controls. I have 2 drives that need to do some ratio control. A small mixing system 75% of this at 25% of that.
I can use discrete and/or analog, old school and reliable. Hopefully old relay Joe the maintenance guy can troubleshoot it. I loose a lot of diagnostics.
I can also use networking pick your poison (Modbus RTU, Ethernet IP, DeviceNet,etc....) Yes I am fully aware stop signals concerns over networked drives. 99% of the time my systems are using safe off drives so the process stop is over network but the safety stop is over hardwire. Almost impossible for old relay Joe to troubleshoot a bad drive. Process troubleshooting becomes so much easier because I can show him the exact fault and a possible reason for it.
So what is your preference and why.
So I have been talking to several guys about how they would do some simple drive controls. I have 2 drives that need to do some ratio control. A small mixing system 75% of this at 25% of that.
I can use discrete and/or analog, old school and reliable. Hopefully old relay Joe the maintenance guy can troubleshoot it. I loose a lot of diagnostics.
I can also use networking pick your poison (Modbus RTU, Ethernet IP, DeviceNet,etc....) Yes I am fully aware stop signals concerns over networked drives. 99% of the time my systems are using safe off drives so the process stop is over network but the safety stop is over hardwire. Almost impossible for old relay Joe to troubleshoot a bad drive. Process troubleshooting becomes so much easier because I can show him the exact fault and a possible reason for it.
So what is your preference and why.