17-9
17 Analog Input/Output Option Board
CP2E CPU Unit Software User’s Manual(W614)
17-5 Analog Input Option Board
17
17-5-3 Wiring
z 0 to 20 mA
The 0 to 20 mA range corresponds to the hexadecimal values 0000 to 07D0 (0 to 2000). The possi-
ble data range is 0000 to 0FFF (0 to 4095). But it is strongly suggested that the input current must
not exceed 30 mA.
Note When using current inputs, voltage input terminals must be short-circuited with current input terminals.
Analog Input Terminal Arrangement
17-5-3 Wiring
Internal Circuits
Converted Data
Hexadecimal (Decimal)
0mA
20mA
07D0(2000)
0000(0)
VI1 Voltage Input 1
Current Input 1
Voltage Input 2
Current Input 2
II1
VI2
II2
COM Input Common
Analog input 2
Analog ground
I I 1
V I 1
COM (−)
I I 2
V I 2
56 kΩ
250 Ω
250 Ω
180 kΩ
180 kΩ
Internal circuits
Analog input 1
toto
56 kΩ