Allen-Bradley 1785-L20E, 1785-L20B, 1785-L20C, 1785-L20C15, 1785-L26B User Manual

For A-B Internal Use Only

Publication 1785-6.2 March 1998

User Manual

PLC-5 Programmable Controller
Flash Tool

(Catalog Number 1785-L11B, -L20B, -L20C, -L20C15,

-L20E, -L26B, -L30B, -L40B, -L40C, -L40C15, -L40E, -L40L,

-L46B, -L46C15, -L60B, -L60C, -L60C15, -L60L, -L80B,

-L80C, -L80C15, -L80E, -L86B)

Use This Manual If... Use this manual if you are responsible for performing a flash

firmware upgrade to a flash-based PLC-5

®

processor.

This Manual Describes... This manual describes how to use the PLC-5 programmable

controller flash tool to upgrade these products:

• series E and later Enhanced PLC-5 processors

• series E and later Ethernet

®

PLC-5 processors

• series C and later ControlNet

™ PLC-5 processors

This manual also describes what to do if the flash upgrade does not
complete successfully.

The following publications contain additional information about
Allen-Bradley PLC-5 processor products. To obtain copies, contact
your local Allen-Bradley office or distributor.

For more information about: Read this publication: Publication number:

Enhanced PLC-5 processors Enhanced and Ethernet PLC-5 Programmable

Controllers User Manual

1785-6.5.12
Ethernet PLC-5 processors
ControlNet 1.0 or 1.25 PLC-5 processors ControlNet PLC-5 Programmable Controllers

User Manual

1785-6.5.14

ControlNet 1.5 PLC-5 processors ControlNet PLC-5 Programmable Controllers

Phase 1.5 User Manual

1785-6.5.22

Allen-Bradley Automation

2

Publication 1785-6.2 March 1998 For A-B Internal Use Only

Before You Begin... Gathering What You Need

Gather the following items before you begin using the flash upgrade .
(Items marked with an aster isk (*) are inc luded in the flash tool
package you ordered.)

• flash firmware upgrade tool disk*

• PLC-5 processor whose firmware you want to update
(with chassis and power supply)

• personal computer with PLC-5 programming software installed

• shielded serial cable (1784-CP10 or 1784-CP11)

• this manual*

• firmware revision label*

• plug PROM(s) (if you require a plug PROM firmware update)*

Running the Software

You will copy the flash files to your hard drive.

Using the Flash Tool To successfully use the flash tool, you need to complete seven steps:

1. Prepare the PLC-5 processor.

2. Install the flash tool.

3. Perform the firmware upgrade.

4. Apply the firmware revision label.

5. Update the communication plug firmware, if necessary.

6. Reconnect the PLC-5 processor.

7. Uninstall the flash tool.

!

ATTENTION: You must install and run the PLC-5

flash tool on a computer boo ted up in DOS 6.22 or later.

Do not use a DOS window running und er W indows
95 or Windows NT.

!

ATTENTION: Pay strict attention to the flash tool

procedure. Failure to f ollow this procedure exactly may
result in an inoperable processor.

3

For A-B Internal Use Only Publication 1785-6.2 March 1998

Step 1 - Preparing the PLC-5 Processor

1. Save processor memory to your hard disk or to an EEPROM using your

PLC-5 programming software.

2. Remove the processor battery cover and disconnect the battery. This resets

the serial port to its default configuration so that the PLC-5 processor and the
flash tool can communicate.

3. Turn of f processor power.

4. Disconnect all cables (serial, DH+, ControlNet, Ethernet, etc.) from

the processor.

5. Disconnect the coprocessor or PLC-5 Ethernet Interface module, if one

is connected.

6. Turn the processor keyswitch to Program mode.

7. Turn on processor power.

8. Attach the shielded serial cable (1784-CP10 or 1784-CP11) between

channel 0 on the PLC-5 processor and the serial port on the computer.

!

ATTENTION: You must save the processor memory

to your hard disk or to an EEPROM. If you do not, the
PLC-5 user memory will be lost because the flash
procedure erases processor memory.

Allen-Bradley Automation