Siemens SIMATIC Rack PC 840 - Meaning of the Setup Parameters

Controller
8-6
SIMATIC Rack PC 840 Manual
A5E00104826-03
8.1.2 Meaning of the Setup Parameters
SCSI Bus Interface Definitions
Host Adapter SCSI ID
All SCSI devices connected to an SCSI bus, including the SCSI controller, must
have different SCSI addresses.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15
The SCSI controller is set to the displayed SCSI address
(default entry: 7)
SCSI Parity Checking
The SCSI controller uses default parity checking on the SCSI bus for monitoring
data transfer. Older SCSI devices may not support parity checking. If this is the
case, you must disable this option.
Enabled Parity checking is activated (default setting)
Disabled Parity checking is deactivated.
Notice
If parity checking is disabled, this applies to all devices connected to the SCSI bu
Host Adapter SCSI Termination
If the Ultra Wide SCSI controller is the final device on the SCSI cable, termination
must be enabled. If the Ultra Wide SCSI controller is not the final device on the
SCSI cable, termination must be disabled.
Automatic Host adapter is terminated automatically
LowON/HighON Termination is enabled (default setting)
LowOFF/HighOFF Termination is disabled.