Re: Next steps on NIED's ongoing issues

Hello NIED team,

Mike L, Mike N and I meet for a brief discussion about the latest NIED Controller to PC link dropout this afternoon. We have a couple of things we would like to run by you to see if you agree. Here’s what we thought would be the best course of action:

1. MTS-J to identify and hire a local power quality consultant to install power quality monitor units on the outlet serving the Switch and also on the outlets of at least 2 of the MTS controllers and GUI PC’s. These power monitor units will be left installed for long term monitoring to watch for suspected power glitches

a. This will be a pre-requisite to further investigation from the MTS-Mpls team. It is impossible to further narrow down the cause of the communication dropouts without first monitoring AC power

2. Once (1) has been implemented, a proposal will be discussed with MTS-J for quoting basically an insurance package. The likeliest cause of the dropouts is an issue with power glitches. This proposal will outline the addition of (MTS supplied) UPS’s on each of the MTS controllers and PC’s. A UPS will also be supplied for the Switch. Replacement of the existing Switch (with the industrial grade one already on-site or with a high reliability, enterprise class network switch) is also being considered.

We recognize that (2) will require more careful thought but as a whole, we (I) felt that this approach was reasonable.

Please share your thoughts on these two items.

Thanks,

David C.

________________________

David Chua

Projects EE Supervisor

MTS Systems Corporation

david.chua@mts.com

(952)974-6125