Workflow installation and configuration in sharepoint 2013

Hi Team,

I have 5 server for sharepoint 2013 farm.

2 --web front end server 

2 --appliction servers

1 sql server.

now my requirement is need install and configure the workflows on this farm.

i have installed the workflow manager,client and service bus in one appliction server.afte that to communicated my sp 2013 site,i ran the below cmd but it not working..

Register-SPWorkflowService -SPSite "http://myserver/mysitecollection" -WorkflowHostUri "http://workflow.example.com:12291" -AllowOAuthHttp

sekhar