![background image](http://html1.mh-extra.com/html/zetron/1708/1708_installation-and-operation-manual_3547303043.webp)
MODBUS System Set Up
025-9209K
43
The time period over which the value was accumulated is:
Finally, the total scaled accumulated value is:
Table 18 shows the MODBUS holding register addresses used for digital input counters.
Table 18. Digital Input Counter Holding Register Addresses
Counter
Value
Period
Counter
Value
Period
1
42011 – 42013 42014 - 42016
9
42091 - 42093 42094 – 42096
2
42021 – 42023 42024 - 42026
10
42101 - 42103 42104 – 42106
3
42031 – 42033 42034 - 42036
11
42111 - 42113 42114 – 42116
4
42041 – 42043 42044 - 42046
12
42121 - 42123 42124 – 42126
5
42051 – 42053 42054 - 42056
13
42131 - 42133 42134 – 42136
6
42061 – 42063 42064 - 42066
14
42141 - 42143 42144 – 42146
7
42071 – 42073 42074 - 42076
15
42151 - 42153 42154 – 42166
8
42081 – 42083 42084 - 42086
16
42161 - 42163 42164 – 42166
The counter value, as mentioned previously, is a count of the number of times the
corresponding digital input has activated. This can be converted to engineering units simply
by multiplying the count by a conversion factor. For example, if a flow sensor outputs one
pulse for every 100 gallons of flow through a pipe. The count can be multiplied by 100 to get
the total flow in gallons.
The counter period is returned in 10ths of a second, so the period in seconds is:
Counter period in seconds = Period
÷
10
Содержание 1708
Страница 1: ...Models 1708 and 1716 Remote Terminal Units Installation and Operation Manual 025 9209K...
Страница 8: ...Contents 025 9209K 8...
Страница 56: ...025 9209K 56...
Страница 60: ...Repair 025 9209K 60 MODEL 1700 SERIES ENCLOSURE OUTLINE 024 0057B...
Страница 61: ...Repair 025 9209K 61 MODEL 1700 SERIES ENCLOSURE INSTRUCTIONS 024 0056D Sheet 1 of 2...
Страница 62: ...Repair 025 9209K 62 024 0056D Sheet 2 of 2...
Страница 63: ...Repair 025 9209K 63 MODEL 1708 REMOTE TERMINAL UNIT SILKSCREEN 702 9439F...
Страница 64: ...Repair 025 9209K 64 MODEL 1716 REMOTE TERMINAL UNIT SILKSCREEN 702 9440F...
Страница 72: ...Appendix B 025 9209K 72...
Страница 80: ...Glossary 025 9209K 80...