Ronan X76CTM Manuel d'utilisateur télécharger pdf (Page 21)

Product Level. Inches Floating Point

Water Level. Inches Floating Point

Product Gross Volume. Gallons Floating Point

Total Gross Volume. Gallons Floating Point

9 Product Average Temperature.The average of the submerged

°F Floating Point

10 thermistor temperature.

11 Product Net Volume.The volume calculated when the product

Gallons Floating Point

12 temperature is 60°F.

13 Current CSLD (Continuous Statistical Leak Detection) Leak Rate. Gallons

Floating Point

14 Rate is based on at least one month test history. per Hour

15 Last Completed Leak Test Rate. A test that has not been canceled Gallons

Floating Point

16 before the scheduled test duration has expired. Per Hour

17 Time of Last Completed Test.Time is in UNIX format (32 bit

Seconds

Unsigned Long

18 integer, number of seconds since January 1, 1970). Number

19 Tank Status. A field with different flags that correspond to tank Unsigned Long

20 alarms. Number

Scaled Product Level. 0.001 Inches

Unsigned Long

22 Number

Scaled Water Level. 0.001 Inches

Unsigned Long

24 Number

Scaled Product Gross Volume. 0.001 Gallons

Unsigned Long

26 Number

Scaled Total Gross Volume. 0.001

Unsigned Long

28 Number

29 Scaled Product Average Temperature.The average of the sub-

0.001°F

Unsigned Long

30 merged thermistor temperatures. Number

31 Scaled Product Net Volume.The calculated volume when the

0.001 Gallons

Unsigned Long

32 product temperature is 60°F. Number

33 Scaled Current CSLD (Continuous Statistical Leak Detection) 0.001 Gallons Unsigned Long

34 Leak Rate. Based on a least one month test history. per Hour Number

35 Scaled Last Completed Leak Test Rate. A test that has not been 0.001 Gallons Unsigned Long

36 canceled before the scheduled test duration expired. per Hour Number

37-50 Reserved.

Modbus™ Register Allocations

trator can access and alter the user codes.

Function 62 is used to change the PIN codes.

During new code entry, the numbers are sub-

stituted with asterisks (*) on the display for

additional security.The administrator should

first log in, then enter the new user number.

This starts the login procedure for the new

user. When Function 62 is pressed, a prompt

for entering the user’s PIN will appear.

For example:To change the PIN for user 4,

PIN code for administrator.The default dis-

play will appear. Press 4.The X76CTM will

prompt to enter the user 4 PIN number. Dis-

regard prompt and press Function 62.The

system will prompt again for the new user 4

PIN number. Enter the new code.

10.2 Modbus™ Support

The X76CTM supports Modbus™ protocol in

both ASCII and RTU modes.The mode is

selectable via the front panel or the text ter-

minal interface. For constant reading of the

tank information, the RTU mode is recom-

mended because of the small data overhead.

10.2.1 Register Allocation. The system data

accessible through Modbus™, is on a per

tank basis.The variables are sent in IEEE

4 bit floating point format or as 4 bit scaled

integer long numbers, for devices that do not

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 37 38

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Ronan X76CTM Manuel d'utilisateur Page 21

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