DESCRIPTION AND OPERATION
I/O SECTION
2 - 4
I-E96-207A
®
Analog Inputs
The input conditioning block consists of two pole input filters that
reduce input signal noise. The COM uses analog voltage inputs
Figure 2-2. MCOM03/04 Analog Input and Output Circuits
T00141A
COM
+24 V
E2
E1
+24 V
E1
TERMINATION
UNIT CABLE
TERMINATION
UNIT
TERMINATION
UNIT CABLE
TO NDCS03
TO NDCS03
TERMINATION UNIT
XU8
1
16
2
15
7
10
6
11
5
12
4
13
3
14
8
9
XU3
9
8
10
7
15
2
14
3
13
4
12
5
11
6
16
1
ANALOG INPUTS 1 AND 2
ARE SIMILAR TO 3 AND 4
WITH THE EXCLUSION OF
XU8 (FEEDBACK TO SAC)
ANALOG
INPUT
TO IISAC01
TO IISAC01
IMCOM03/04
ANALOG INPUT 3
IMCOM03/04
ANALOG INPUT 4
IMCOM03/04
ANALOG OUTPUT 1
(VOLTAGE MODE)
IMCOM03/04
ANALOG OUTPUT 2
(CURRENT MODE)
+
P2
–
P3
ANALOG INPUT CIRCUIT
ANALOG OUTPUT CIRCUIT
+
+
–
–
ANALOG
OUTPUT
ANALOG
OUTPUT
XU9
1
16
2
15
7
10
6
11
5
12
4
13
3
14
8
9