
iv
CNT16-8(FIT)GY,
CNT16-8L(FIT)GY
4.
Using the I/O Address Map
15
Starting I/O Address ......................................................................................................................... 15
List of I/O Address Maps ................................................................................................................. 16
Specifications Common to F&eIT Products..................................................................................... 20
Product Information ................................................................................................................... 20
Bit Assignments for I/O Ports .......................................................................................................... 22
Flow of Count Values ....................................................................................................................... 22
Operation Commands ....................................................................................................................... 23
Description of Input Commands....................................................................................................... 24
Reading a Count (command 00h - 07h)..................................................................................... 24
Interrupt mask (command 11h) ................................................................................................. 24
Status (command 12h) ............................................................................................................... 25
Count control (Command 14h) .................................................................................................. 25
Digital Filter (command 15h) .................................................................................................... 25
Description of Output Commands .................................................................................................... 26
Initial Count Value (command 00h - 07h) ................................................................................ 26
Count Data Latching (command 10h) ....................................................................................... 26
Interrupt Mask (command 11h) ................................................................................................. 26
Status Reset (command 12h) ..................................................................................................... 27
Counter initialization (command 13h)....................................................................................... 27
Counter control (command 14h)................................................................................................ 27
Digital Filter (command 15h) .................................................................................................... 28
Examples........................................................................................................................................... 30
Pulse Count (no interrupts)........................................................................................................ 30
Pulse Count (with interrupts)..................................................................................................... 33
5.
Using the Memory Address Map
39
Module Information Area .......................................................................................................... 40
Module Information Area .......................................................................................................... 47
Basic I/O Data Area ................................................................................................................... 50
Examples........................................................................................................................................... 51
6. System
Reference
57
Block Diagram .................................................................................................................................. 57
Specifications.................................................................................................................................... 58
Physical Dimensions......................................................................................................................... 60