Campbell Scientific MD485 RS-485 Multidrop Interface - Manual (Page 39)

Appendix C. MD485 to RF401 Network
3. MD9 EMULATION
PC-MD485----MD485-PS100 with A100-RF401---RF401-DL
LoggerNet Setup
a. Setup:
ComPort_1
MD9Base
MD9Remote
CR10X
b. ComPort_1 – default settings
c. MD9Base – defaults
d. MD9Remote – Address: “1“
e. Datalogger – default settings, schedule collections as desired
MD485 Configuration
a. Base MD485
1) Active Ports – “RS-232 and RS-485”
2) Communication Mode – “MD9 Emulation” with address 255
3) RS-232 Port Configuration – Desired baud rate
4) RS-485 Port Configuration – Desired baud rate
b. Remote MD485
1) Active Ports – “CS I/O and RS-485”
2) Communication Mode – “MD9 Emulation” with address 1, 2,
etc. (unique for each remote MD485 and must agree with
respective MD9 in device map)
3) CS I/O Port Configuration – Modem Enable
4) RS-485 Port Configuration – Desired baud rate
RF401 Configuration
The active interface of the base RF401 should be set to “COM2xx to
RF401”. All other RF401 settings maybe left in their default state.
However, if there is a neighboring RF401 network, you should change the
Hopping Sequence of base and remote RF401s to a new setting to avoid
interference.
4. HARDWARE
After configuring LoggerNet or PC208W, the RF401s and the MD485s
you are ready to set up hardware. Connect the base MD485 RS-232 port
to the PC COM port. Attach a transformer to the DC Pwr jack of the base
MD485. The A100 null modem connectors (it’s not important which
connector goes to which unit) connect via SC12 cables to the CS I/O ports
of the remote MD485 and the base RF401. Connect power to the PS100.
C-3