ARCHITECTURAL DIAGRAMS
SNAP PAC S-Series User’s Guide
12
Remote Host and I/O Unit Connections Using PPP
For remote monitoring and control, you can use a SNAP PAC S-series controller to connect to a
remote host such as a PC or to a SNAP Ethernet-based I/O unit using a dial-up link. For this use, the
controller communicates using the Point-to-Point Protocol (PPP) over a modem.
PC running
OptoOPCServer and
OptoDataLink
PC running PAC
Display Professional
Ethernet switch
Dial-up modem at
remote location
Enterprise Network
SNAP PAC S-series controller uses
a PPP dial-up telephone
connection to communicate with
I/O units at a remote location.
SNAP I/O unit at remote
location is connected to
sensors and actuators.
Sensors and actuators
at remote location
Dial-up
modem
