Central Processing Unit
5–15
1070 072 145-102 (01.07) GB
5.4.3 X72 Analog Inputs and Outputs
. Refer also to “CL200 Operations List”, order no. in section 1.6.
The ZE200A, ZE200AM, and ZE200A-DP central processing units are the
only ones providing 4 analog inputs plus one analog output. They are con-
nected via the X72 female DB-15 connector.
Pin Signal
designation
Signal function Signal direction
1 AI0 Analog input 0 ²
2 AI1 Analog input 1 ²
3 AI2 Analog input 2 ²
4 AI3 Analog input 3 ²
7, 8, 9, 11, 12, 15 GND Ground
5 CFG Analog output,
Oper. mode selection
D Power output, current rated: Open
D Power output, voltage rated: Bridged w/ 14 (AOI)
10 AOU Analog output,
voltage rated
³
14 AOI Analog output,
current rated
³
6, 13 NC Spare
Housing Screen
Analog inputs
The input circuits of the 4 analog inputs are not electrically isolated. Analog
inputs do have overvoltage and reverse polarity protection, however. An ad-
ditional external power supply is not required.
Example of connection diagram:
U
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
I
RS
I v 20 mA
RS = 513 W
U v 10 V
X72
Overload conditions cause the MIN or MAX digital value to be output.
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