Chapter 2. CPU Features & Specifications
20 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
2.1.3 Firmware Storage in Flash Memory
The CPU uses non-volatile flash memory for storing the operating system firmware. This allows firmware
to be updated without disassembling the module or replacing EPROMs. The operating system firmware
is updated by connecting to the CPU with a PC compatible computer and running the software included
with the firmware upgrade kit.
Each upgrade kit contains specific instructions for performing the upgrade. Depending on the CPU Model
and firmware version, the method employed is one of the following:
a) Use a serial port and the WinLoader utility (applies to CPU310, CPU315 & CPU320 models and
to CPE305/CPE310 models containing firmware versions prior to v7.30)
b) Use a USB port and memory stick for CPE302 (with firmware version 9.40 and later) or for
CPE305/CPE310 models (with firmware version 7.30 and later)
c) Use an Ethernet port and a Web-based mechanism for RXi CPUs, RX3i CPE330, CPE400 and RSTi-
EP CPE100/CPE115.
2.1.4 Operation, Protection, and Module Status
Operation of the CPU can be controlled by the three-position RUN/STOP Switch or remotely by an
attached programmer and programming software. Program and configuration data can be locked
through software passwords. The status of the CPU is indicated by the CPU LEDs on the front of the
module. For details, see Indicators for each PACSystems family.
Note: The RESET pushbutton is provided to support future features and has no effect on CPU
operation in the current version
2.1.5 Ethernet Global Data
Notes: Effective with RX3i firmware version 8.30
2
, the CPE310/CPE305 CPUs also support EGD Class 1.
Prior to that firmware version, EGD was only available in the RX3i via the RX3i Ethernet Interface
Module (ETM001).
Effective with RX3i firmware version 8.60
3
, CPE330 also supports EGD Class 1. This feature is
available on all firmware versions of RX3i CPE400, CPE302 and RSTi-EP CPE100/CPE115.
Each PACSystems CPU supports up to 255 simultaneous EGD pages across all Ethernet interfaces in the
Controller. EGD pages must be configured in the programming software and stored into the CPU. The
EGD configuration can also be loaded from the CPU into the programming software. Both produced and
consumed pages can be configured. PACSystems CPUs support the use of only part of a consumed EGD
page, and EGD page production and consumption to the broadcast IP address of the local subnet.
The PACSystems CPU supports 2ms EGD page production and timeout resolution. EGD pages can be
configured for a production period of 0, indicating the page is to be produced every output scan. The
minimum period for these “as fast as possible” pages is 2 ms. Refer to the Section, A-3.6 for EGD Sweep
Impact for RX3i CPE302/CPE305/CPE310 and RSTi-EP CPE100/CPE115 Embedded Ethernet Interface.
During EGD configuration, PACSystems Ethernet interfaces are identified by their Rack/Slot location.
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