Thank you very much for your information!
I don't seem to get the localhost part working, but am still trying. Apparently, I always get status 2 back instead of status 0. In case I don't use the (127.0.0.1,9000) but by a remote host, it works... It think it has not to do with the Peoplesoft JOLT listener because also ServiceCheck.Custom(127.0.0.1,21) on FTP-host returns dci-value 2.
I don't seem to get the localhost part working, but am still trying. Apparently, I always get status 2 back instead of status 0. In case I don't use the (127.0.0.1,9000) but by a remote host, it works... It think it has not to do with the Peoplesoft JOLT listener because also ServiceCheck.Custom(127.0.0.1,21) on FTP-host returns dci-value 2.