Rockwell Automation Publication 825-UM004D-EN-P - November 2012 183
Chapter 13
Firmware Upgrade Instructions
Overview
Rockwell Automation occasionally offers firmware upgrades to enhance the
performance of your relay. Since the 825-P relay stores firmware in flash memory,
changing physical components is not necessary. Upgrade the relay firmware by
downloading a file from a personal computer to the relay via the front panel serial
port as outlined in the following sections.
Required Equipment
Gather the following equipment before starting this firmware upgrade:
• Personal computer (PC)
• Terminal emulation software that supports XMODEM/CRC protocol
(e
.g., Microsoft® Windows® HyperTerminal)
• S
erial communication cable (null-modem cable)
• Disk containing the firmware upgrade (*.S19) file
Upgrade Instructions
The instructions below assume you have a working knowledge of your personal
computer terminal emulation software. In particular, you must be able to modify
your serial communications parameters (baud rate, data bits, parity, etc.), select
transfer protocol (XMODEM/CRC), and transfer files (e.g., send and receive
binary files).
1. If the relay is in service, open its motor control circuits.
2. Connect the PC to the front-panel serial port and enter Access Level 2.
3. Save the current relay settings.
a.
Issue the following commands at the ASCII prompt:
SHO, SHO P, and SHO M.
b. Issue the L_D com
mand t
o the relay.
c. Type Y and press the Enter key at the following prompt:
Disable rela
y to send or receive firmware (Y/N)?
d. Type Y and press the Enter key at the following prompt:
Are
you sure (Y/N)?
The relay sends the BOOTLDR !> promp
t.
4. Type BAU 38400 and press the Enter key.
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