GE PACSystems RX7i - Ladder Diagram (LD) Language Overview

Chapter 2. CPU Features & Specifications
GFK-2222AD April 2018 25
Downloading a Project from the RDSD to the CPU
To download a project to the RX3i, the RDSD must contain a valid project, consisting of the hardware
configuration, application logic, and reference memory in a compiled format (originating from another
RX3i controller). The project files, consisting of the entire contents of the PACS_Folder directory and all
of its subdirectories, loaded on the RDSD must not be modified. If they are modified, the files transferred
to the CPU will be invalid.
By default, all project components are stored to the CPU and are written to flash. You can change this
operation by placing an options.txt file on the RDSD as described below.
1. Ensure that the RX3i is in STOP Mode
2. If PROFICY Machine Edition is online with the RX3i, either go Offline or select Monitor mode.
3. Connect the RDSD to the USB connector on the CPU that will be receiving the files. The RDSD LED
turns solid green.
4. For CPE302/CPE305/CPE310, move the RDSD direction switch to the right (DOWNLOAD), then
momentarily depress the START pushbutton. For CPE330, depress the RDSD DNLD pushbutton.
5. Do not remove the RDSD from the CPU during the transfer.
▪ If the target name in the RDSD is different from the target name in the RX3i, the RDSD LED will
blink red. If this is expected or acceptable, momentarily depress the START pushbutton again.
▪ The RDSD LED blinks green during the transfer. This can take from 10 – 150 seconds, depending
upon the size of the project data.
▪ The RDSD LED should turn solid green, indicating that the transfer completed successfully.
Unless the RUN/STOP Switch has been disabled in the hardware configuration just stored, it can
be used to place the RX3i into RUN Mode after the transfer.
▪ If the RDSD LED turns solid red, the transfer has failed.
- The target memory area(s) in the CPU are cleared. For example, if only the Logic is being
download from the RDSD and the store fails (e.g. stick pulled, problem with transfer or data),
Logic memory is cleared following the failed RDSD download. If other memory areas were
also queued up for transfer, those memory areas are also cleared as a result of the failure.
- There will be a copy of the fault tables as they existed at the end of the attempted transfer
on the RDSD. Insert the RDSD into a PC which has the PACS Analyzer software and select
the plcfaultafter.dat file on the RDSD for fault table analysis by the Analyzer.
- If the RDSD LED turns solid red, indicating an error, another RDSD operation cannot be
initiated until the device is disconnected then reconnected.
Caution
If the RDSD is removed during data transfer to the CPU, the
RX3i controller will generate a fatal fault (sequence store fault)
and SYS FLT LED will turn red. You will need to clear the fault
tables through a programmer connection or by power cycling
the CPU with the Energy Pack disconnected before attempting
to download again. Each type of data being downloaded (logic,
config, and/or data) is cleared within the target CPU.
6. When the RDSD LED turns solid green, indicating the transfer has been successfully completed,
remove the RDSD from the CPU.
The RUN/STOP Switch can be used to place the RX3i into RUN Mode after the transfer, unless it has
been disabled in the hardware configuration just stored. If the RUN/STOP Switch is disabled, you will
first need to connect with the programmer to place the RX3i in RUN Mode.