Publication 1785-IN022C-EN-P - September 2005
4 Firmware Update Instructions for Ethernet, Enhanced and ControlNet PLC-5 Programmable Controllers
Important Considerations for CL I, Div. 2 Installations
Ethernet PLC-5
Programmable Controllers
- 1785-L20E
- 1785-L40E
- 1785-L80E
Series C and D
To update these series of Ethernet PLC-5 firmware, you must first use
ControlFLASH through the Ethernet channel, and then replace the applicable
EPROMS. To start this firmware update, follow these steps:
Step 1 - Prepare the PLC-5 Programmable Controller
1. Save the controller’s processor memory to your hard disk or to an
EEPROM.
2. Remove power from the controller.
3. Remove the controller battery cover and disconnect the battery.
4. Remove the controller from the chassis.
WARNING
When you connect or disconnect the battery, an electrical arc can
occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is
nonhazardous before proceeding.
• For safety information on the handling of lithium batteries,
including handling and disposal of leaking batteries, refer to
Guidelines for Handling Lithium Batteries, publication AG-5.4
• Store batteries in a cool, dry environment. We recommend 25°
C with 40% or 60% relative humidity. You may store batteries
up to 30 days between -45° - 85° C, such as during
transportation. To avoid possible leakage, do not store batteries
above 60° C for more than 30 days.
WARNING
When you install or remove the module with power applied, or
you connect or disconnect the serial cable with power applied to
this programmable controller or the device on the other end of
the cable, an electrical arc can occur. This could cause an
explosion in hazardous location installations. Be sure that power is
removed or the area is nonhazardous before proceeding.
ATTENTION
You must save the controller’s processor memory to your
hard disk or to an EEPROM. If you do not, the
controller’s user memory will be lost because the
firmware update procedure erases memory.
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