Control Microsystems 5604 - Filtering and Response Timing; Figure 8: Analog Input Wiring

5604 Input/Output (I/O) Module - Hardware Manual
October 19, 2007
18
+
External 12 or
24Vdc Power
Supply
_
Voltage
8
+
_
+Vdc – Vloop 0 1 GND
7
6
5
4
3
2
1
0 1 2 3 4 5 6 7 8 GND
Current
P4 - Analog Inputs
PWR
Voltage O/P
COM
PWR
Current O/P
COM
J1 J2 J3 J4 J5 J6 J7 J8
9
10
6
5
4
3
2
1
P3 – Power and Analog Outputs
Figure 8: Analog Input Wiring
5.4 Filtering and Response Timing
The 5604 I/O Module also provides internal digital outputs to control the filtering and response
times of the analog to digital conversion. Theses digital outputs can be controlled by the user
application to either maximize the filtering in noisy environments or minimize the filtering in
applications that require the fastest response times.
The following chart shows the response timing for the selectable filter settings.
Internal digital outputs 34 and 35 control the filter setting.
The 5604 I/O module may select 50 or 60 Hz line frequency for digital and analog input processing.
The Controller board Option Switch 3 selects the line frequency option.
Filter
Setting
Response
Time
Digital
Output 35
Digital
Output 34
< 3 Hz
155ms at 60Hz
185ms at 50Hz
OFF
OFF
Maximum filter setting
6 Hz
85ms at 60Hz
85ms at 50Hz
OFF
ON
Medium filter setting
11 Hz
45ms at 60Hz
55ms at 50Hz
ON
OFF
Minimum filter setting
30 Hz
30ms at 60Hz
30ms at 50Hz
ON
ON
No filter