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 Saudi Arabia
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