From: Andy Peters

Sent: Wed Apr 25 08:51:59 2018

To: Ryan Hepler

Cc: Gerald Fisher

Subject: FW: PURCHASE ORDER # 1359 needs PW Director Approval

Importance: Normal

 

Ryan this is the best PO I've seen, thank you. I added my own notes and

will let you know as soon as Dan has signed off. This PO will come in

handy some day when you are looking for an old Allen Bradley part number!!

 

Andy

 

-----Original Message-----

From: MolallaOps@CityOfMolalla.com <MolallaOps@CityOfMolalla.com>

Sent: Wednesday, April 25, 2018 8:48 AM

To: apeters@CityOfMolalla.com; gfisher@CityOfMolalla.com

Subject: PURCHASE ORDER # 1359 needs PW Director Approval

 

 

**************************************************************************

*******************

PURCHASE ORDER # 1359 needs PW Director Approval

**************************************************************************

*********************

CreatedBy: rhepler

 

Items: 1.  (1) CPU SLC 5/04

a.  Use part number: 1747-L541 $4077

2.  (1) 115 VAC Input Module

a.  Use part number: 1746-IA16 $579

3.  (1) Output relay module

a.  Use part number: 146-OW16 $593

4.  (1) Input analog module

a.  Use part number: 1746-NI4 $1386

5.  (1) Output DC Source module

a.  Use part number: 1746-OB16 $575

6.  (1) Output TRIAC module

a.  Use part number: 1746-OA16 $802

 

Shipping not to exceed $30.00

 

Vendor: Industrial Systems Inc

503-262-0367

 

 

Amount: $8012.0000

 

Accounts: 106-601-5-30-0400, ,

 

Notes: Note from Ryan: These spare PLC components will help us meet our

redundancy requirement to keep our treatment plant operational if we were

to have a PLC failure. Our current PLC's have been in service for approx

20 years and the fact that some of these components have a 2-4 week lead

time has created a need to have these parts in our inventory and we have

seen similar failures in other PLCs at the City.

 

Note From Andy: Inventories should always be kept low to achieve JIT

benefits. But redundancy should be meet with kanban inventory like this

where you buy as you use. We've already saved major shutdowns and problems

this year by having these pieces at the WWTP. Troubleshooting and changing

out PLC parts is a new skill the Operators have been learning, so before

where we would have frantically called Industrial Systems and payed large

sums to do a simple PLC card swap out, we are handling it in house. I

agree with this purchase, and we should still come in under budget in the

line. Andy

 

*

**************************************************************************

********************

You are receiving this message because your email address is coded into

MolallaOps web.config file to notify on new. If you feel you've received

this email in error please contact Molalla Operations or City Hall: (503)

829-6855.