Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
Math Instructions 223
DEG - Radians to
Degrees
Instruction Type: output
The DEG instruction converts the Source(in radians) to degrees and store
the result in the Destination.
The following formula applies:
Source * 180/Π
where Π = 3.141592
ATN Instruction Operation
Inputs Conditions Output
Source Type Destination
Type
S:2/14 S:0/3-0
S, Z, V, C
S:5/0 Destination
W,DW, F F X Source >= 0 0,0,0,0 L Atan(Source)
(1)
DNRM F X X 0,1,0,0 L 0
W,DW, F F X Source < 0 1,0,0,0 L Atan(Source)
W,DW, F W, DW X Atan(Source) >= 0.5 0,0,0,0 L Rnd(Atan(Source))
W,DW, F W, DW X -0.5 < Atan(Source) < 0.5 0,1,0,0 L 0
W,DW, F W, DW X Atan(Source) < -0.5 1,0,0,0 L Rnd(Atan(Source))
X F X Source = +INF 0,0,0,0 1
π/2
X F X Source = -INF 1,0,0,0 1
-
π/2
(2)
X F X Source is NAN 0,0,1,0 1 0x7FFFFFFF
(3)
X W X Source is NAN 0,0,1,0 1 32767
(3)
X DW X Source is NAN 0,0,1,0 1 2147483647
(1) All denormalized inputs shall be treated as plus zero. Any underflow result shall produce plus zero.
(2) If the Destination is floating point, all overflows shall produce NAN(0x7FFFFFFF).
(3) If the Destination is word or double-word, and an overflow occurs, destination shall be 32767 for Word and 2147483647 for Double Word.
ABS
Radians to Degrees
Source N7:0
0<
Dest N7:1
0<
DEG
Execution Time for the DEG Instruction
Controller Data Size When Rung Is:
True False
MicroLogix 1400 word 27.7310 µs 0.4106 µs
long word 31.2470 µs 0.4098 µs
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Allen-Bradley MicroLogix 1400 Specifications

General

Processor	32-bit
Expansion Modules	Up to 7 expansion I/O modules
Power Supply	24V DC or 120/240V AC
Programming Software	RSLogix 500
Communication Ports	Ethernet, RS-232/RS-485 combo port
Controller Type	Programmable Logic Controller (PLC)
Series	MicroLogix
Digital Outputs	12
Analog Inputs	6 (embedded)
Analog Outputs	2 (embedded)
High-Speed Counter	6 high-speed counters
Pulse Output	2 (embedded)
Ethernet Port	Yes