Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
11-6 Conversion Instructions
Example
The BCD value 32,760 in the math register is converted and stored in
N7:0. The maximum source value is 32767 (BCD).
You should convert BCD values to integer before you manipulate them in
your ladder program. If you do not convert the values, the controller
manipulates them as integers and their value may be lost.
NOTE
To convert numbers larger than 9999 BCD, the source
must be the Math Register (S:13). You must reset the
Minor Error Bit (S:5.0) to prevent an error.
FRD
From BCD
Source S:13
00032760<
Dest N7:0
32760<
FRD
S:14 S:13
0000 0000 0000 0011 0010 0111 0110 0000
15 0 15 0 5-digit BCD
0003 2760
32760N7:0 Decimal 0111 1111 1111 1000
NOTE
If the math register (S:13 and S:14) is used as the source
for the FRD instruction and the BCD value does not
exceed four digits, be sure to clear word S:14 before
executing the FRD instruction. If S:14 is not cleared and a
value is contained in this word from another math
instruction located elsewhere in the program, an incorrect
decimal value is placed in the destination word.

Allen-Bradley MicroLogix 1200 Specifications

General

Series	MicroLogix 1200
Type	Programmable Logic Controller (PLC)
Mounting	DIN rail or panel mount
Programming Language	Ladder Logic
Programming Software	RSLogix 500
I/O Points	Up to 40
Communication Ports	RS-232, RS-485
Memory	6 KB user memory
Power Supply	24V DC or 120/240V AC
Expansion	Supports expansion I/O modules
Operating Temperature	0°C to 55°C (32°F to 131°F)
Dimensions	90 mm x 110 mm
Weight	0.5 kg (1.1 lbs)