#1 Replacement for the

Siemens/Moore 353

Controller

The YS1700 is the best replacement for the discontinued 353. With the same fit, form & function as well as function block programming, it's a seamless replacement. The YS1700 covers all of the approvals and applications and is cheaper than upgrading to a DCS.

What are the advantages of YS1700?

Check out the YS1700 Specification file.

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Now that the entire Moore/Siemens 350 family 

is obsolete, we have a better solution for you:

Yokogawa and its YS1700 PID loop controller. 

Yokogawa has been providing industrial solutions, as their primary business, for over a century and their YS1700 will keep you off of eBay looking for spare 353 parts.

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• 34 Year MTBF 

• Dual CPUs to ensure the FCE can be manipulated if one of the CPUs were to fail. 

• Hard manual back-up for output control in case of catastrophic control failure. 

• Manual backup station to hot swap a controller while running a live process.

• Yokogawa’s YS1000 are backward compatible to every legacy Yokogawa 3x6 controller developed since the 1960s. 

•Legacy products with programmable digital CPUs can have their programming transferred to current YS model.

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Model

Yokogawa YS1700

Siemens / Moore 353

Display type

Number of AI

Number of AO

Number of DI/O

Modbus RTU

Modbus TCP/IP

DCS

Peer to Peer

Scan Rate

Programming

Hard Manual Back-up

Dual Processors

Panel Depth

Password Protection

Approvals

5 to 8

Yes

Yes

50 ms

Yes

Yes

Yes

10

2

4

Red LED

7 to 15

3 to 4

Color TFT LCD

FM Class 1, Div 2 Groups A, B, C, D

CSA Class 1, Div 2 Groups A, B, C, D

ABS

Yes

280 mm

No

No

Function Block with graphical

configuration software

20 ms

Yes

Yes

250mm

Yes

No

Yes

FM Class 1, Div 2 Groups A, B, C, D

CSA Class 1, Div 2 Groups A, B, C, D

ABS

Yes

Function Block with graphical

configuration software

YS1700 vs PAC353 Side-by-Side

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High quality and reliability. 

Designed for 100% availability on process 

Protect your investment in engineering.

Established Migration path for legacy controller products