make modbus
Merge branch 'master' of https://github.com/aslubsky/node-simple-scada
Merge branch 'master' of https://github.com/aslubsky/node-simple-scada
Merge branch 'master' of https://github.com/aslubsky/node-simple-scada
Merge branch 'master' of https://github.com/aslubsky/node-simple-scada
fix