GE PACSystems RX7i Reference Manual page 79

Chapter 2. CPU Features & Specifications
Backwards Compatibility of CPE330 with CPU320, CRU320, or CPU315
The CPE330 may be interchanged with a corresponding CPU320/CRU320 with no upgrade to Proficy
Machine Edition (PME) software. Logic and configuration equality in PME are maintained when storing
the same project to either a CPU320/CRU320 or a CPE330.
An Extra Option Module fault is logged in the Controller Fault Table on the CPE330's slot location after
downloading a CPU320/CRU320 configuration to a CPE330. This indicates that the Embedded Ethernet
interface did not receive a configuration. This fault is expected and does not interfere with normal
controller operation.
Migration of CPU315 applications to the CPE330 is possible with no upgrade to PME by converting them
to a CPU320 application and storing the project to the CPE330.
Versions of PME with native CPE330 support allow either a CPU320/CRU320 or a CPE330 configuration
to be stored to the CPE330. When a CPE330 is configured as a CPU320/CRU320, Ethernet properties
cannot be configured. However, the embedded Ethernet ports may be used with their previously
configured IP Addresses or their default IP Addresses if the default IP Addresses were never changed.
Since CPE330 has no serial ports, any serial port activity associated with the previous CPU320/CRU320
application needs to be migrated to a suitable rack-based module (IC695CMM002 or IC695CMM004).
To download projects intended for the CPU320/CRU320 to a CPE330 with versions of PME that do not
support the CPE330, you must change the CPE330's compatibility setting. To change the compatibility
setting, perform the following operations:
1. Remove any USB stick that might be attached to the USB connector on the CPE330.
2. Place the RUN/STOP switch on the CPE330 in the STOP position.
3. Hold down the RDSD UPLD button and turn power on to the CPE330. Continue to depress the RDSD UPLD
button until the CPE330 powers up and displays one of the following patterns on the LEDs.
CPU Status Indicators
CPE330 LED LED State
CPU OK
FORCE
RUN
RDSD
OUT EN
SYS FLT
CPU OK
FORCE
RUN
RDSD
OUT EN
SYS FLT
i. To toggle the compatibility setting, press the RDSD DNLD button. The compatibility indication will toggle
between the CPU320 compatibility and CRU320 compatibility patterns each time the RDSD DNLD button
is pressed.
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On
Blinking
Operating State
CPU320 Compatibility mode.
On Amber
On Amber
Off
On Red
Off
On Red
CRU320 Compatibility mode.
On Amber
On Amber
On Red
Off
Off
On Red
PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual
Off
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