Recent content by Eldorado

You have a surge vessel feeding a downstream column. You are controlling a valve position between the surge vessel and the column. Your primary objective is to control the flow into the column. Your secondary objective is to maintain the level in the surge vessel, probably between high and low...

Hello, If the only condition for de-energizing is a trip, then you could do that with the ESD system. The anti-surge control should also know when you have a trip, so it would work equally well to have it drive the SOV. You might want to de-energize the SOV in other conditions, for example...

Hi Selk. Try to make a potentially complex subject simple... I see two solutions to the isolated grid scenario: 1 - Mixed droop / isoch. Run one machine in isoch (in other words, speed or frequency) control. Run all other machines in droop. The isoch machine is responsible for maintaining the...

Thanks for the clarification SalemGeek.

Thanks everyone for the excellent replies. This information is exactly what I needed. Using the number written to the HMI point as the timeout value is quite devious. I'm impressed. For those who were wondering, I brought up these questions because I'm doing a controls upgrade on this steam...

James, Appreciate the quick response. I've reviewed the GE manual you referenced, as well as Cimplicity's built-in help info. I think I understand the concepts around Events, Procedures, Points, etc. Most likely I am missing some specific info on how Cimplicity interfaces with the Mark V. What...