Schweitzer Engineering SEL-2032, Instruction Manual

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7.33
Date Code 20120126 Instruction Manual SEL-2032 Communications Processor
Settings
Math/Data Movement (SET M) Settings
Item Labels
The labels that you enter are limited to alphanumeric characters (a–z, A–Z,
0–9) and the underscore character (_). If you enter any other items within a
SET M label, you will either receive an error message from the SEL-2032 or
the equation that you entered will not function as expected. For example, the
equation below could be entered with the intention of assigning the label
“QA+” to the item in the first User region register.
0;;QA+=2:METER:QA This equation is actually interpreted as the following:
0;;QA += 2:METER:IA Add the value of 2:METER:IA to the first User region
register and give this register the “QA” label.
Examples
0 = 1:METER:IA Store the Port 1 IA value to the first location in the User
region; if the value is stored as a floating-point value, it will be
converted to an integer.
1 = 1:METER:VA/100 Divide the Port 1 VA value by 100 and store it to the
second location in the User region; if the value is stored as a floating-
point value, it will be converted to an integer after the division. The
value scaled must be positive.
2,f = 2:2800h,f;6 Starting from the Port 2 address 2800h, copy 6 values to
the User region, starting at the third register; treat both the source and
destination values as floating-point values, so each copy will move two
registers.
S Treat as packed ASCII string (default if type is C)
label ASCII text label of up to 19 characters;
characters must be alphanumeric (a–z, A–Z, 0–9) or underscore (_)
[+|–|*|/] Specifies (for register operations)
mathematical operator, add, subtract, multiply, divide
source Source address using any valid register addressing method. A
special source method may also be used for SER data from a
lower-tier SEL-2032. This method allows data points to be referenced
by SER index. For example, the string 3:SER:2.58, references the SER
region on Port 3, and the 58th bit from Port 2 of the lower-tier SEL-2032.
scaling Scaling for positive values using either a / constant or * constant
dest Destination address as an offset
into the User region in decimal or hexadecimal
repeat_count Number of subsequent addresses to copy
constant Numeric, decimal (integer or floating-point) constant
bit Bit number from 0–15
+ Used (in bit operations) in front of = to form “+=”
indicating that the source bit is ORed into the destination bit
* Used (in bit operations) in front of = to form “*=”
indicating that the source bit is ANDed into the destination bit
! Indicates that the source bit value should be inverted (complemented)
source_bit Bit from an SEL-2032 database;
see
Section 6: Database for more information on bit access methods
bit_const Constant 0 or 1, indicating the state of a bit
nvol_const Constant 1–10 indicating how many of the
following registers will be used for nonvolatile storage.
Table 7.10 Math/Data Movement Equation Parameters (Sheet 2 of 2)
Equation
Parameter
Explanation
Courtesy of NationalSwitchgear.com