Rockwell Automation 57C421B Pulsetach Input Module/DCS 5000/AutoMax - Manual (Page 53)

BĆ1
Appendix B
Module Block Diagram
200 KHz
TIMER
COMPARATOR
REGISTER
COUNTER
CLEAR
CONTROL
24ĆBIT
UP/DOWN
COUNTER
EQUAL
EXTERNAL
SIGNAL
INTERFACE
PHASE A AND A
PHASE B AND B
PHASE Z AND Z
EXTERNAL COUNT
STOP
ORGIN/CLEAR
EXTERNAL LATCH
PULSE
CONSTANT
CLOCK
COUNTER
REGISTER
0 AND 1
3 AND 4
COUNTER
UPDATE
REGISTER 2
MODE
MODULE
DEFINITION
REGISTER 6
STATUS
REGISTER 7
INTERRUPT
STATUS
CONTROL
REGISTER 5
CLEAR
M
U
L
T
I
B
U
S
B
A
C
K
P
L
A
N
E
INTERRUPT
DATA LATCH