Lighthouse SOLAIR 1100LD, Operating Manual

Page: 60 / 188

Lighthouse SOLAIR 1100LD Operating Manual
5-2 248083395-1 Rev 9
Ethernet Communications
WARNING:
Connect
the Ethernet port ONLY
to an Ethernet LAN.
The Ethernet RJ45 connector provides Ethernet connectivity, over
which the instrument uses the MODBUS over TCP/IP communication
protocol. Communicating with the instrument on an Ethernet LAN
requires a PC or server running a MODBUS communication package,
such as LMS Express, Express RT or LMSNet connected to same
LAN. Both must be configured to use the same IP address range,
subnet and default gateway. It is strongly advised that the instrument
be assigned a static IP so its address does not change and software
programs monitoring its data will not lose contact with it due to a
DHCP change. Contact the local IT or Network Administration staff
for clarification and IP assignment or Lighthouse Technical Support at
800-945-5905 (Toll Free USA) or 541-770-5905 (Outside of USA) for
more information.
Note:
See section
“Ethernet Adapter” in
Chapter 4 for setting up
Ethernet Communications.
The instrument can be connected directly to a PC computer Ethernet
port by using a crossover cable for testing and configuration purposes.
It must use a standard straight-through cable to attach to an Ethernet
hub or switch.
RJ-45 Comm Port
WARNING:
+24VDC
is present on Pin 7 of RS-
485 Port.
The RJ-45 connector on the instrument’s RS485 port (see Figure 5-1)
incorporates both RS232 and RS485 lines. The pinouts are displayed in
Table 5-1.
Table 5-1 RS232/RS485 - RJ-45 Pinouts
RJ-45 Pin Signal Name
1 RS-232-TX
2 RS-232-RX
3 RESERVED for future use
4 RS485B
5 RS485A
6 RESERVED for future use
7 24VDC
8 GND