Campbell Scientific AVW200 AVW200-series Vibrating Wire Interfaces - Page 105
Appendix I. Using MD485 Multidrop Modems with AVW200 Interfaces, I.1 Required Settings
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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, Device Configuration (DevConfig) Utility, 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