Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 User Manual

799
Data Control Instructions Section 3-18
In this example, values from 0000 to 00C8 hexadecimal will be converted to
negative values. SCL(194), however, can output only unsigned BCD values
from 0000 to 9999, so 0000 BCD will be output whenever the contents of
D00000 is between 0000 and 00C8 hexadecimal.
Reverse Scaling
Reverse scaling can also be used by setting As < Bs and Ar > Br. The follow-
ing relationship will result.
Reverse scaling can be used, for example, to convert (reverse scale) 1 to 5 V
(0000 to 0FA0 hexadecimal) to 0300 to 0000, respectively, as shown in the fol-
lowing diagram.
(BCD)
(BIN)
(BCD)
(BIN)
P1: D00100
P1+1: D00101
P1+2: D00102
P1+3: D00103
+
+00C8 Hex
Contents of D 00200 (R)
Point B
Point A
Contents of D 00000 (S)
Point A (00C8 Hex → 0000 (BCD))
Point B (1068 Hex → 0300 (BCD))
The value in CIO
0200 plus 00C8
hexadecimal
S (unsigned binary)
Point B
Point A
R (unsigned BCD)
R
Point B
Point A

Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Specifications

General

Brand	Omron
Model	SYSMAC CJ - REFERENCE MANUAL 08-2008
Category	Controller
Language	English