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RI 45 PIII, Manual
C79000-G7076-C817-01
If your startup drive has several LUNs (Logical Unit Numbers) and the
Multiple LUN Support function is enabled, you can select which LUN you
want to use as the boot drive.
0, 1, 2, 3, 4, 5, 6, 7
The SCSI controller boots with the LUN that is displayed (default setting: 0)
7.3.3
SCSI Device Configuration
This row contains the SCSI device IDs (0-15)
SCSI devices, including the SCSI controller, communicate with each other
via a common SCSI bus. Before data are sent via the SCSI bus, the SCSI
controller and the connected SCSI devices negotiate and agree on the
transmission rate and number of data packages to be sent in a specific space
of time.
If you have operating problems with older SCSI devices, you should disable
Initiate Sync Negotiation. You may have to change some settings on your
SCSI devices (read your SCSI device documentation).
Even if the Sync Negotiation function is disabled, the SCSI controller
switches automatically to fast synchronous mode if requested to do so by an
SCSI device. However, it can also exchange data with slow SCSI devices.
Yes
The function is enabled (default setting).
No
The function is disabled.
Note
Synchronous data transmission is required for fast and ultra SCSI operations.
When Initiate Wide Negotiation is set, the SCSI controller uses fast 6-bit data
transfer (wide SCSI) instead of the slower 8-bit data transfer.
Disable Initiate Wide Negotiation only if you are not using wide SCSI
devices or if there are operating problems with 8-bit SCSI devices. You may
have to change some settings on your SCSI devices (read your SCSI device
documentation).
Fast SCSI devices, including the SCSI controller, can cope with data
transmission rates to and from the SCSI bus of up to 40 Mbytes/s.
Yes
The function is enabled (default setting).
No
The function is disabled.
Boot LUN Number
SCSI Device ID
Initiate Sync
Negotiation
Initiate Wide
Negotiation
SCSI Option
Summary of Contents for SIMATIC RI 45 PIII Series
Page 6: ...vi RI 45 PIII Manual C79000 G7076 C817 01 Contents ...
Page 90: ...2 62 RI 45 PIII Manual C79000 G7076 C817 01 Motherboard ...
Page 96: ...3 6 RI 45 PIII Manual C79000 G7076 C817 01 Bus Board Operator Panel Sound Module ...
Page 108: ...6 6 RI 45 PIII Manual C79000 G7076 C817 01 Connecting Cables ...
Page 126: ...7 18 RI 45 PIII Manual C79000 G7076 C817 01 SCSI Option ...
Page 130: ...Index 4 RI 45 PIII Manual C79000 G7076 C817 01 Index ...