Rodrigo Balsalobre

HOW CAN I USE NETWORK I/O ON LADDER SOFTCOMFORT?

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Posted (edited)

Hi! I was doing an project using function block, but at one point it became too complex to use FBD so I would like to use ladder.  I'm using an ihm and that's why some inputs are of the network type, in FBD, it's easy to use the network i/o, but in ladder, the network inputs, where I receive data from the ihm, don't have outputs for me carry out the logic. How can i do this?

USING FBD

1.JPG.9d4d963a1fe08722b80ed7dd4bc9c6b0.J

USING LADDER

2.JPG.ba9a9e35d5341ddd4261f1324f2f57fe.J

As you can see, theres no output on network analog input, on the digital to!

Edited by Rodrigo Balsalobre

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Posted (edited)

You use ModBus communication, therefore on outputs the values are automatically allocated to registers.You can read the values from registers. Check on LOGO allocation table the register you need.

Be aware that outputs must be shifted with -1 There is no output 0 on LOGO,  but 1

Edited by dekor
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