Delta RMC151 - Manual (Page 359)

5 Programming
ADDR_OFS(loc, i) Returns the address of the ith register after the register loc.
COPY(src, dst,
len)
Copies up to 32 variables from src to dst.
LOG_EVENT(a, ...) Logs the values of the operands a, ... in the Event Log. From 1 to 3
operands.
REG_REAL(f, e)
Represents the register at the specified address %MDf.e. REG_DINT(f, e)
REG_DWORD(f, e)
5.14.2.2. ABS Function
ABS(a)
Returns the absolute value of a.
Parameters
a (REAL or DINT)
The input value.
Return Value
The absolute value of a. The data type will be the same as the a input parameter.
Examples
ABS(3) returns 3
ABS(-3.0) returns 3.0
5.14.2.3. ACOS Function
ACOS(a)
Returns the arccosine of a.
Parameters
a (REAL)
The input value.
Return Value
Returns a REAL in radians.
Remarks
Notice that the return value is in radians. To convert a value from radians to degrees,
multiply the radians value by 180/ π . The RMC has an M_PI constant for π . For a < 1.0 or
a > 1.0, the task will fault. An error will be logged in the Event Log and the user program
running on the task will stop.
Examples
ACOS(0.5) returns 1.0471976
ACOS(0.5) * 180 / M_PI returns 60.0
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