ET200L-SC AI modules

[userxyz]

Hi

I have an ET200L with an SC expansion

2 analogue input cards on slots F and G.

The weird thing is, that Physically, the current inputs are wired to slot G (G1 and G3 inputs).

F = 276...279 in the hardware configuration
G = 280...283 in the hardware configuration

On slot F nothing is connected.

On PIW280 and PIW282 I get zero ?? when nothing connected I should get 32767 in think.

On PIW276 and PIW278 I get the measurements of SLOT G ?????

How is this possible ?

 

[JesperMP]

On PIW280 and PIW282 I get zero ?? when nothing connected I should get 32767 in think.

No, for a +/- 20mA current input, at 0 mA the value will be zero.

For the other problems, I cant help you much. I would experiment to find out how it works. Mind you that it is quite easy to get the wiring mixed up with the ET200S modules.

 

[userxyz]

Hi

Hey,

I have found the problem,

I had the analog modules on slots G and H

and moved them to slots F and G

after downloading it's necassary to shut the power of the ET200L of and on.

Then everything is as it should

thanks