Scan Sets Parameters - Emerson PACSystems RX3i User Manual

PACSystems™ RX3i and RSTi-EP CPU Reference Manual
GFK-2222AK
Port Parameters
Timeout(s) (Available only when STOP Mode is set to SNP Slave.) The maximum time that the slave will
wait to receive a message from the master. If a message is not received within this timeout
interval, the slave will assume that communications have been disrupted, and then it will
wait for a new attach message from the master.
Valid range: 0 through 60 seconds.
Default:
When the STOP Mode is different from the Port Mode: 10 seconds.
▪
When the STOP Mode is the same as the Port Mode: the value is read-only and is set to
▪
the same value as the Timeout for the Port Mode.
SNP ID (Available only when STOP Mode is set to SNP Slave.) The port ID to be used for SNP
communications. In SNP multi-drop communications, this ID is used to identify the intended
receiver of a message. This parameter can be left blank if communication is point to point.
To change the SNP ID, click the values field and enter the new ID. The SNP ID is up to seven
characters long and can contain the alphanumeric characters (A through Z, 0 through 9) or
the underline (_).
Default:
When the STOP Mode is different from the Port Mode: the default is blank.
▪
When the STOP Mode is the same as the Port Mode: the value is read-only and is set to
▪
the same value as the SNP ID for the Port Mode.
Station (Available only when STOP Mode is set to RTU slave.) ID for the RTU Slave.
Address Valid range: 1 through 247.
Default:
When the STOP Mode is different from the Port Mode: 1.
▪
When the STOP Mode is the same as the Port Mode: the value is read-only and is set to
▪
the same value as the Station Address for the Port Mode.
3.2.11

Scan Sets Parameters

You can create multiple sets of asynchronous I/O scans, with a unique scan rate assigned
to each scan set. You can assign up to 31 scan sets for a total of 32. Scan set 1 is the
standard scan set where I/O is scanned once per sweep. Each module is assigned to a scan
set during the configuration of that module. Scan Set 1 is the default scan set.
Scan Set Parameters
Number A sequential number from 1 to 32 is automatically assigned to each scan set. Scan set 1 is
reserved for the standard scan set.
Scan Type Determines whether the scan set is enabled (as a fixed scan) or is disabled.
Choices: Disabled, Fixed Scan.
Default: Disabled.
CPU Configuration
Section 3
October 2019
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