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Hanna

Problem PT1000 temp sensor

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Hello! I have a application whit plc vision 350-35-R2 and expansions module PT4X. I have the latest visilogic program (9.3). The problem is that all my four PT1000 sensor give me value 1000. The temp sensor is two wire connection and i have connect them to (+v) and (-V) on the PT4X. I have also connect (+V) whit (+I) and (-V) whit (-I). All four temp sensors have right resistance (1050-1100ohm). In the hardware configuration i have type PT1000 (385), mode C, adress MI2 - MI5. What can the problem be?

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Hi Hanna,

There are two I/O Expansion modules,I/O Expansion module IO-PT400 for PT100, and I/O Expansion module IO-PT4K for PT1000.

In VisiLogic Hardware Configuration there is a common I/O Expansion module IO-PT4X.

VisiLogic know to detect which modul is in use.

So when you use PT1000, you should use I/O Expansion module IO-PT4K .

See attached picture, where I measure a temperature of hot water.

post-5711-017368800 1325059568_thumb.jpg

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Hi Hanna,

There are two I/O Expansion modules,I/O Expansion module IO-PT400 for PT100, and I/O Expansion module IO-PT4K for PT1000.

In VisiLogic Hardware Configuration there is a common I/O Expansion module IO-PT4X.

VisiLogic know to detect which modul is in use.

So when you use PT1000, you should use I/O Expansion module IO-PT4K .

See attached picture, where I measure a temperature of hot water.

Thanks for your answer! I dont understand how to choose PT4K. Here you have may hardware configration. Is then wrong?

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Without adding an IO-PT4x to a Hardware Configuration it will not works.

After you selected a snap-in for your V350 - In your case this is a V350-35-R2, you need to click on I/O Expansions, click on IO-PT4x icon, drag and drop it to a rails.

*See attached

Clicking on it opens a configuration window.

Save changes, check connection and test.

post-5711-005931500 1325065669_thumb.jpg

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Hi Hanna,

There are two I/O Expansion modules,I/O Expansion module IO-PT400 for PT100, and I/O Expansion module IO-PT4K for PT1000.

In VisiLogic Hardware Configuration there is a common I/O Expansion module IO-PT4X.

VisiLogic know to detect which modul is in use.

So when you use PT1000, you should use I/O Expansion module IO-PT4K .

See attached picture, where I measure a temperature of hot water.

post-6592-015728400 1325073702_thumb.jpg

Hello again! I do not think my file was with at my answer, try again! Think I have the right user configurable. Check my file! Do not understand why it should not work?

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Hanna,

It will be better if you describe in more details connection between modules.

When you use IO-PT4K, you should use either EX-A1 or EX-A2X Expansion Adapter with a proper cable between it and OPLC.

Cables are different. Cable for EX-A1 has Gray connectors. Cable for EX-A2X has Yellow connectors. Connector with a Groung wire should be connected to OPLC.

IO-PT4K module should be connected to Expansion Adapter with a cmall flat cable.

EX-A1 or EX-A2X Expansion Adapter should pe powered from Power Suply.

Please tell if everything i wrote is implemented.

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Hanna,

It will be better if you describe in more details connection between modules.

When you use IO-PT4K, you should use either EX-A1 or EX-A2X Expansion Adapter with a proper cable between it and OPLC.

Cables are different. Cable for EX-A1 has Gray connectors. Cable for EX-A2X has Yellow connectors. Connector with a Groung wire should be connected to OPLC.

IO-PT4K module should be connected to Expansion Adapter with a cmall flat cable.

EX-A1 or EX-A2X Expansion Adapter should pe powered from Power Suply.

Please tell if everything i wrote is implemented.

Hello! The cables name between oplc and expansions adapter EX-A1 are EX1-CA100 (Gray connectors). The side with ground wire (yellow/gren) is connected to oplc.

The EX-A1 has power suply 24VDC. The run lamp on the EX-A1 indicates green and the four channels lamp indicates red (out of range). what more can I test?

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Hi Hanna,

PT-4x module name used in Hardware Configuration. What module do you use? IO-PT400 or IO-PT4K?

PT1000 sensor should be used with IO-PT4K, and PT100 sensor should be used with IO-PT400.

If you use PT1000 sensor with an IO-PT400 - it will be a reason of wrong reading.

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Hi Hanna,

PT-4x module name used in Hardware Configuration. What module do you use? IO-PT400 or IO-PT4K?

PT1000 sensor should be used with IO-PT4K, and PT100 sensor should be used with IO-PT400.

If you use PT1000 sensor with an IO-PT400 - it will be a reason of wrong reading.

Hi! In the module, it is written only IO-PT4. This module, I think we used many years ago with PT1000 sensors? The SN numbers are:91D00535

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Hi Hanna,

IO-PT4 is a predecessor of IO-PT400 (newest one). Both designed to work with PT100.

To work with PT1000, you should use IO-PT4K. This module designed to work with PT1000.

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Hi Hanna,

IO-PT4 is a predecessor of IO-PT400 (newest one). Both designed to work with PT100.

To work with PT1000, you should use IO-PT4K. This module designed to work with PT1000.

Hi! I'm sorry I was so clumsy. Thanks for all your help. //Hanna

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