Rockwell Automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual - Manual (Page 77)

Publication 1794-UM064B-EN-P - May 2014
Communicate With Your Module 65
Write Word 0 Bit Control Word 0 – Control word for setting the function of counter 0.
Bit 00 Pulse counting and period time measurement selection for Channel 0 –
0 = pulse counting and period measurement selected.
1 = period time measurement selected.
Bit 01 Pulse counting and period time measurement selection for Channel 1 –
0 = pulse counting and period measurement selected.
1 = period time measurement selected.
Bit 02 Pulse counting and period time measurement selection for Channel 2 –
0 = pulse counting and period measurement selected.
1 = period time measurement selected.
Bit 03 Pulse counting and period time measurement selection for Channel 3 –
0 = pulse counting and period measurement selected.
1 = period time measurement selected.
Bits 04…15
(04…17) Reserved.
Write Word 1 Bit 00 Clock frequency for period time measurement - Channel 0 –
0 = period time measurement with 10 MHz internal clock selected.
1 = period time measurement with 1 MHz internal clock selected.
Bits 01…03 03 02 01 Number of periods for measurement - Channel 0.
0 0 0 1 period.
0 0 1 2 periods.
0 1 0 4 periods.
0 1 1 8 periods.
1 0 0 16 periods.
1 0 1 32 periods.
1 1 0 64 periods.
1 1 1 128 periods.
Bit 04 Clock frequency for period time measurement - Channel 1 – see Bit 00 above.
Bits 05…07 Selection of Number of period for measurement - Channel 1 – see Bits 01…03 above.
Bits 08(10) Clock frequency for period time measurement - Channel 2 – see Bit 00 above.
Bits 09…11
(11…13) Selection of Number of period for measurement - Channel 2 – see Bits 01…03 above.
Bit 12(14) Clock frequency for period time measurement - Channel 1 – see Bit 00 above.
Bits 13…15
(15…17) Selection of Number of periods for measurement - Channel 1 – see Bits 01…03 above.
1794-IP4 Pulse Counter Module Word/Bit Definitions
Word Bit Definition