INSTALLING AND CONFIGURING THE CONTROLLER
SNAP PAC S-Series User’s Guide
24
Assigning an IP Address
See instructions in Opto 22 form 1704, the
PAC Manager User’s Guide
, to assign IP addresses to the
SNAP PAC S-series controller using a wired Ethernet connection.
SNAP PAC controllers have two independent Ethernet network interfaces, labeled on the top of the
controller as ENET1 and ENET2. Wired+Wireless PACs have a third network interface for the wireless
LAN. You can use these separate interfaces to segment the control network from the company
network or for other purposes. Use PAC Manager to assign the secondary and wireless addresses and
configure settings. Make sure each interface is on a separate IP subnet and receives a unique IP
address.
Assigning Serial Ports on SNAP-PAC-S2 Controllers
See instructions in Opto 22 form 1704, the
PAC Manager User’s Guide
, to configure serial ports for
SNAP-PAC-S2 controllers.
Each of the four serial ports on a SNAP-PAC-S2 can be configured either as an RS-232 serial port or
an RS-485 serial port. Up to four ports on the SNAP-PAC-S2 can be used for I/O, and up to four ports
can be used for general purpose serial communication. Only one port on the SNAP-PAC-S2 may
used for PPP communication.
By default the serial ports are as follows:
Port
Factory Default Mode
0
RS-232 (PPP)
1
RS-232 (not PPP)
2
RS-485 (2-wire 485 with termination and bias)
3
RS-485 (2-wire 485 with termination and bias)
