Toshiba T2N - Manual (Page 54)

2.Specification
User’s manual 39
4000 (a)
3000
2000
1000
0
4 10
4000
3000
2000
1000
-1000
-2000
(b)
(c)
-10 - 5 0 1 5
A/D Conversion
Analog Value Analog Value
• ± 10V
Data Format (Input occupies 4 words)
• 4-20mA/1-5V
10(V)
D = Digital value
A = Analog value
20(mA)
(a) 4-20mA range : D = 250 x A-1000
(b) 1-5V range : D = 1000 x A-1000
(c) ±
10V range : D = 200 x A
F E D C B A 9 8 7 6 5 4 3 2 1 0
B * * * D D D D D D D D D D D D
S : Sign bit
0 = Positive
1 = Negative
D : Data bit (11 bits)
- 2000 - 2000 (HF830 - H07D0)
2's complement if negative
D : Data bit (12 bits)
0-4000 (H0000-H0FA0)
B : External line abnormal detection bit
0 = Normal
1 = Abnormal
(Current input line open, or external power OFF)
* : Always 0
F E D C B A 9 8 7 6 5 4 3 2 1 0
S S S S S D D D D D D D D D D D
4-Channel Analog Input
(12-bit) (Continued)
1. In the voltage input specification, when there is an open-circuit
between the input terminals, the data bits do not become 0.
2. It is recommended that unused channels be shorted between
the input terminals.
NOTE
Digital Value Digital Value