Issue
Modbus Installation and Troubleshooting for AP9635/AP9635CH Network Management Card 2 (NMC2).
Product Line
- UPS Network Management Card 2 - AP9635/AP9635CH
Environment
- Data centers with products that use AP9635/AP9635CH Network Management Card 2 (NMC2)
- Firmware applications that support Modbus TCP or Modbus RTU with AP9635/AP9635CH (Galaxy VM, Galaxy 300/7000, Galaxy 5000/5500, etc)
Cause
This application note explains how to install the Modbus wiring for an AP9635/AP9635CH Network Management Card 2, gives an overview of the Modbus protocol, describes the Modbus packet structure, and explains how to identify and resolve common problems.
(The Modbus protocol uses TCP, RTU and ASCII modes of transmission. The AP9635/AP9635CH supports Modbus/TCP and Modbus/RTU protocols.)
Resolution
The latest version of the Modbus Installation and Troubleshooting for AP9635/AP9635CH Management Card Application Note 168 attached below.
Released for: Schneider Electric Hong Kong
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