Appendix I. Using MD485 Multidrop
Modems with AVW200 Interfaces
For situations where wireless communication is impractical, MD485 Multidrop
Modems may be used to extend the distance between the AVW200 interfaces.
This application is not compatible with SDI-12 communications.
I.1 Required Settings
DevConfig is used to configure the settings for the AVW200 interfaces and the
MD485 Multidrop modems. A unique address must be assigned to each
AVW200 in the network. This address may be entered in the
Deployment/Communications or the Setting Editor (refer to Section 5. for
more information).
Each MD485 in the network must be configured with the following settings
(see also Figure I-1):
Active Ports: RS-232 and RS-485
Protocol Configuration: PakBus Networking
RS-232 Baud Rate: 38.4k
RS485 Baud Rate: 38.4k
FIGURE I-1. Deployment tab in DevConfig with proper
MD485 configuration.
I-1
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