CONTROL MODE -> A PFC application is running

CODESYS
1

Hello,

When I try to enter CONTROL mode on my 750-0881 using WAGO-I/O-CHECK 3,

I receive an error message: “A PFC Application is running”

How can I resolve this issue?

Thank you

2

Stop the PLC in CoDeSys (Online → Stop) or set the mode switch to the middle position. The CoDeSys program must not be running when entering control mode in WAGO-IO-CHECK

3

Thanks for answering.

Last questions if i may ?

On the PFC, there is 6 modules of 16 Digital Input and 5 modules of 16 Digital Output.

I’d like to control the switch of one lighting zone.

  1. What is the différence between DI and DO ? witch one i may program ?

  2. What librairies i may use within NODE-RED to control the light switch ?

Thanks

4

Hello,

  1. DI stands for Digital Input (reads a signal: ON/OFF), and DO stands for Digital Output (sends a signal: ON/OFF). With DI, you check whether a switch/sensor is active or inactive. With DO, you control something like a relay or a light switch. In practice, you read the DI and use that information to set the DO. For example, press a button (DI) → turn on a light (DO).
  2. If you just want to control a switch, default node-red libraries are sufficient enough. If you want to do something different please inform us.

Hope this answers your questions.