Node-red-contrib-s7 LOGO! 7 (0BA7)

Hello
Has anyone already used the node-red-contrib-s7 module to control a Siemens LOGO! 7 (0BA7 standard)? The communication with a LOGO!8 (0BA8) works perfectly.
Node Red always says that the logo7 is online but no actions are read or executed on the logo.
THX
Marc