Campbell-scientific MD485 RS-485 Multidrop Interface Manuel d'utilisateur télécharger pdf (Page 52)

Appendix D. Digital Cellular Modem to MD485 Network

FIGURE D-3. LoggerNet Digital Cellular Modem to MD485 PakBus Networking Setup

MD485 CONFIGURATION

a. Base MD485

1) Active Ports – “RS-232 and RS-485”

2) Communication Mode – “PakBus Networking”

3) RS-232 Port Configuration – Desired baud rate

4) RS-485 Port Configuration – Desired baud rate

b. Remote MD485s

1) Active Ports – “CS I/O and RS-485”

2) Communication Mode – “PakBus Networking”

3) CS I/O Port Configuration – SDC Address 7 or SDC Address 8

4) RS-485 Port Configuration – Desired baud rate

5. HARDWARE

After configuring LoggerNet or PC208W and the MD485s you are ready

to set up hardware. Attach the null modem cable to the RS-232 ports of

the digital cellular modem and the base MD485. Attach wall transformers

to the DC Pwr jack of the base MD485 and the digital cellular modem.

D-8

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Campbell-scientific MD485 RS-485 Multidrop Interface Manuel d'utilisateur Page 52