Rockwell Automation 1794-IP4 Series B FLEX I/O PULSE COUNTER User Manual User Manual
Page 59
6–6
Input, Output and Configuration Files for Analog Modules when used with ControlNet
Publication 1794ĆUM016B-EN-P - August 2002
Pulse Counter Module (1794ĆIP4) Image Table Mapping
Module Image
ControlNet Files
Input File Size
1 to 10 Words
Configuration File Size
0 to 3 Words
Control Word 0 - Sets the measure function
Control Word 2 - sets the start of a new measurement
Control Word 1 - Sets the clock frequency and period multiple
Counter 00 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 0
Code for identification of software version
Counter 01 - pulse counter for channel 0 or high word of 32Ćbit period measurement
Counter 10 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 1
Counter 11 - pulse counter for channel 1 or high word of 32Ćbit period measurement
Counter 20 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 2
Counter 21 - pulse counter for channel 2 or high word of 32Ćbit period measurement
Counter 30 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 3
Counter 31 - pulse counter for channel 3 or high word of 32Ćbit period measurement
Readback of Control word 2 or
Reserved
M0
M1
M2
M3
RD0
RD1
RD2
RD3
Bit/Word Definitions for Block Transfer Read Words
for the
Pulse Counter Module
Input
Word
Bit
Definition
Input
Word 0
Bits 00-15
(00-17)
Store Counter 00 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 0.
1
Bits 00-15
(00-17)
Counter 01 - pulse counter or high word of 32Ćbit period measurement for channel 0
2
Bits 00-15
(00-17)
Counter 10 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 1.
3
Bits 00-15
(00-17)
Counter 11 - pulse counter or high word of 32Ćbit period measurement for channel 1
4
Bits 00-15
(00-17)
Counter 20 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 2.
5
Bits 00-15
(00-17)
Counter 21 - pulse counter or high word of 32Ćbit period measurement for channel 2
6
Bits 00-15
(00-17)
Counter 30 - 16-bit period measurement or low word of 32Ćbit period measurement for channel 3.