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1-5. Notes for the CPU-353 Board
Replacement
1-5-1. Replacing/Restoring Data
1. Outline
Before replacing the CPU-353 board, download the user
status to a PC through the Ethernet connection. The data
can then be uploaded to the new board.
However, if the CPU-353 board has a malfunction and
cause of the malfunction is one of the followings, the
correct data may not be downloaded:
"The basic operation of the CPU or its peripherals has
a malfunction."
"The Ethernet has a problem."
In such cases, examine the condition of the malfunction
before the operation.
If the cause of the failure prevents normal processing (as
detailed below), a note must be made of the status before
removing the old CPU-353 board, and then the new CPU-
353 board set manually after the exchange. If it is impossi-
ble to collect data before the exchange, a basic setup is
done after the exchange.
To exchange data between the new CPU-353 boards,
connect a PC to the SIU-100/100T.
Some of the followings are the operations on the SIU-100/
100T.
2. Preparations
Windows PC (Windows 98 or later)
. Enables to connect to the Ethernet with the Ethernet
connector.
. Web browser is installed and enabled (Internet Explorer
6 or Netscape 7 recommended).
. Enables to use FTP from the MS-DOS Prompt (Com-
mand Prompt for Windows 2000 or later).
Environment enabling to connect Ethernet (10Base-T)
between the SIU-100/100T and the PC.
. When a LAN or hub is used in the office, a straight cable
is required .
When the SIU-100/100T is directly connected to the PC,
a crossing cable is required.
1-22
n
The built-in FTP server of the SIU-100/100T only has a
function to transfer a certain data (such as version up and
data backup). Also, it only supports the commands de-
scribed.
Use the FTP through the Windows MS-DOS Prompt
(Command Prompt). The other FTP programs are not
supported.
3. Summary of SIU-100/100T Memory
SIU-100/100T memorizes necessary information in both
volatile SRAM (IC202) and non-volatile Flash Memory
(IC200 and IC201).
The SIU-100/100T operation status set by a user is always
stored in SRAM. Operation status includes all information
such as SYNC setup, routing, IP addresses and the config-
urations of installed option boards.
SRAM is non-volatile, and if power is cut off suddenly, the
CPU-353 board gets power from its lithium battery
(BAT201) to back up the data into SRAM. When the unit
is next started, it uses the information stored in SRAM to
resume operations. The menus SYSTEM BACKUP and
SYSTEM RESTORE are provided to use in case that the
battery is exhausted. SYSTEM BACKUP records the
contents of SRAM into Flash Memory and SYSTEM
RESTORE restores it in SRAM from Flash Memory. (The
SYSTEM RESTORE is reflected after the SIU-100/100T
is re-started.)
The following items are recorded on Flash Memory by
factory setting:
(1) Firmware
(2) MAC address of the Ethernet and the serial number of
the unit.
A user can save the following data in a different area of the
same Flash Memory:
(3) Scene data saved by the Store operation. Up to 255
scenes can be saved.
(4) SRAM (operating state) data saved by SYSTEM
BACKUP.
For the data exchange operation using a PC, the Flash
Memory data (3) (4) are downloaded to the PC, and are
restored to the Flash Memory of the new CPU-353 board
on the SIU100/100T.
Normally, the data on SRAM is copied to or from Flash
Memory using SYSTEM BACKUP or SYSTEM RE-
STORE respectively.
SIU-100/100T
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