This manual describes the features and specifications of the GE Fanuc Automation programmable control products' CPU, including the RX3i and RX7i models.
The GE Fanuc GFK-2222D CPU Reference Manual provides a comprehensive description of the PACSystems CPU, including hardware features, firmware details, Ethernet configuration, and memory parameters. It explains how to set up and diagnose the CPU, with sections on scan settings, power consumption, and watchdog timer operation.
The manual also lists all supported service‑request (SVC_REQ) commands, such as changing scan timers, reading the controller status, and converting data types. Instructions for using Ethernet tools like ping, as well as guidance on converting legacy programs to the new CPU architecture, are included. This manual is written in Chinese.
| Built‑in Ethernet port | Available |
|---|---|
| Watchdog timer | Supported |
| Flash firmware storage | Included |
| Supported data conversion instructions | WORD_TO_REAL, REAL_TO_WORD, DO_IO, etc. |
SVC_REQ 7 reads the current time clock.
Use the appropriate SVC_REQ command (e.g., SVC_REQ 3) to modify the scan mode.