Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 385

Analog Output Terminals
Output Range: 0 to 20 mA
DA Conversion Data
Dimensions
7-5-2 I/O Data Types and Allocation Methods
1,2,3...
364
The values 0000 to 1770 hex (0 to 6,000) correspond to the current range 0 to
20 mA. The output range is 0 to 21 mA.
Current
21 mA
20 mA
0 mA
0000 (0)
FFFF
DA conversion data is output from the Master as shown in the following dia-
gram.
15 14 13 12
Word +0
Output 0 DA conversion data
Word +1
Output 1 DA conversion data
When outputting negative voltages, specify the DA conversion data as two's
complements. The NEG instruction can be used to obtain two's complements
from absolute values. When pin 7 of the DIP Switch is turned ON, the DA con-
version data will be expressed in signed binary.
115
Analog Output Terminals support one type of output data and input data
(Generic Status Flags) each. I/O can be allocated in the Master using one of
the following three methods.
1. Allocating only analog output values (default I/O data) in the Master.
2. Allocating selected I/O data.
3. Allocating user-defined I/O data.
1770 189C
(6000) (6300)
11 10 9 8 7 6 5 4
Section 7-5
Conversion data
Hexadecimal (decimal)
7FFF
3 2 1 0
43.9
29.9
49.7