Bug report for <Beckhoff TwinCat NG driver>
Hello,
Two bugs for this :
1. "Communication error for ZenOn Web Client when a Beckhoff PLC is turned off."
When a remote Beckhoff PLC is turned off (or loss of connection Ethernet etc.), ZenOn Run-Time server seems OK. But a big trouble will be created at the ZenOn Web Client side : ALL communications will be lost with the blue point shown. Yes, I mean, not only the communication with this remote Beckhoff PLC, but all others communications (by driver 61850, driver SNMP etc.) will be lost. ZenOn Web Client will try to connect to the ZenOn Run-Time server without stop. It trys to receive the information of projects but never success.
2. "Communication error when the declaration position of a variable is changed in the PLC program, if we don't correct anything in ZenOn projects."
When the declaration position of a variable is changed in the PLC program, (I mean, for example, it was declared as a local variable in a sub-function before, now it is declared as a global variable), this change will make trouble to the communication with this PLC if we don't correct anything in ZenOn projects.
In this case, we lose the communication with this variable, that is normal; but we lose also the communication with all others variables without any change.
Best regards,
This is a migrated post! Originally posted on 23.02.2012 by user lephis. Please be aware that information can be outdated.