8.24
SEL-2032 Communications Processor Instruction Manual Date Code 20120126
Serial Port Communications and Commands
Command Set
designated port. ‘Disabled’ indicates that SET M settings exist but are not
running on the designated port; this is typically due to insufficient RAM. See
Section 7: Settings for a complete discussion of SET M settings.
Database Delays. The Database Delays column indicates in which database
regions (e.g., D1 A1) data have not been collected at the desired rate since the
last STATUS command was issued. Any entry in this column indicates a
request for data with a previous request pending. These delays will occur: a) in
transparent mode because the SEL-2032 cannot perform its data collection
operation, b) if the data collection rate is set too high for the IED response
time, or c) if the SEL-2032 is so busy that it cannot process data requests at the
set rates.
Ram Allocation Failure Information. The Ram Allocation Failure indicator
provides diagnostic information about unavailability of memory when
requested. There are two separate unavailable memory counters, one is for the
SEL-2032 memory and the other is for the shared memory between the
SEL-2032 and installed protocol cards. The counters increment when the
SEL-2032 attempts to reserve memory and is unable to. You can use these
counters to determine if the SEL-2032 RAM requirements are exceeding the
physical RAM installed in the SEL-2032. The Ram Allocation Failure
counters are nonvolatile. Loss of power or re-initialization will clear the
counters. The STATUS CLEAR command will also clear the counters. If
both counters are zero, the Ram Allocation Failure will not be displayed in the
Status Report.
STORE m:n d
Use the STORE command (Access Level 2) to store data directly into a
database. Parameter m specifies the port number (1
–18 in the SEL-2032);
parameter n specifies the starting database address; and parameter d is a data
stream with each item consisting of data as characters, decimal integers,
hexadecimal integers, or single-precision floating-point numbers. You identify
the data as character data by placing the character(s) in single quotes (i.e.,
‘F’), null-terminated string data by placing the character(s) in double quotes
(i.e., “G”). Decimal integer data are the default. Hexadecimal integer data are
indicated when the last character is an “h.” Floating-point data are indicated
by the presence of a decimal point (.) within the number.
Use the STORE command to force data into the database for test purposes.
The database address being accessed must be a valid database address for
writing. You cannot write to read-only addresses in the Global and Local Data
Regions. You can write to any allocated User Data Region. You set up the
User Data Region for each port as a portion of the auto-message settings
(SET A). Use the VIEW command to confirm that data are stored as you
expected.
The example in Figure 8.31 illustrates how you use the STORE command to
store various types of data and how you use the VIEW command to see the
stored response:
*>>STORE 3:F800h ‘F’ 123 123h 123. <Enter>
*>>VIEW 3:F800h NR 5 <Enter>
3:F800h
0046h 007Bh 0123h 42F6h 0000h
*>>
Figure 8.31 STORE Command
Courtesy of NationalSwitchgear.com
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