I'm using Beckhoff EL6900 Safety module for the first time.
I followed the codesys youtube video for setting up a basic project.
In my hardware configuration , I only have EL6900 module (no EL1904, no EL2904)
I have inserted logical devices (Exchange 8bits from PLC - Exchange 8bits to PLC) / logical exchange GVL for basic data exchange between the 'normal' PLc and the 'Safe' PLC of my project.
In my SafetyApp, I have added one single POU(Ethercat Safety). In this POU, I have added one single FB (FB_TON)
As input parameter of the FB_TON POU, I'im using one variable from my logical I/Os 'Exchange 8 bits from PLC'
As output parameter of the FB_TON POU, I'im using one variable from my logical I/Os 'Exchange 8 bits toPLC'
When trying to build my SafetyApp, I get the error message : SELC0012 Invalid number of connections
I found a description of this error in the Codesys Online Help but I don't understand what this means
What is a FSOE-TwinSAFE SC connection ?
I would appreciate any help on that matter.
Kurvanov
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1
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I find out my error.
The input of a SAFE FB_TON must be a SAFEBOOL.
Thus, a variable from a logical I/O exchange 8 bits from PLC cannot be use as input parameter of a SAFE.
Nevertheless, the generated error message is not really meaningsfull.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Dear members,
I'm using Beckhoff EL6900 Safety module for the first time.
I followed the codesys youtube video for setting up a basic project.
In my hardware configuration , I only have EL6900 module (no EL1904, no EL2904)
I have inserted logical devices (Exchange 8bits from PLC - Exchange 8bits to PLC) / logical exchange GVL for basic data exchange between the 'normal' PLc and the 'Safe' PLC of my project.
In my SafetyApp, I have added one single POU(Ethercat Safety). In this POU, I have added one single FB (FB_TON)
As input parameter of the FB_TON POU, I'im using one variable from my logical I/Os 'Exchange 8 bits from PLC'
As output parameter of the FB_TON POU, I'im using one variable from my logical I/Os 'Exchange 8 bits toPLC'
When trying to build my SafetyApp, I get the error message : SELC0012 Invalid number of connections
I found a description of this error in the Codesys Online Help but I don't understand what this means
What is a FSOE-TwinSAFE SC connection ?
I would appreciate any help on that matter.
Kurvanov
Hi kurvanov,
could you please share the video you mentioned.
I am struggling with basic data intechange between safety module and basic plc logic
more posts ...
I find out my error.
The input of a SAFE FB_TON must be a SAFEBOOL.
Thus, a variable from a logical I/O exchange 8 bits from PLC cannot be use as input parameter of a SAFE.
Nevertheless, the generated error message is not really meaningsfull.