Consumption data from pulse meters is added up once an hour on WRI982. Consumption data from M-bus meters are read by WRI982 every 4 hours. QAX9… reads the current values pending on WRI982 every 4 hours. Web server OZW772 reads the current consumption on the QAX9… daily
between 5 and 10 am.
Individual meter values are available immediately after reading.
Reading is finished earlier accordingly on plants that do not fully use the maximum number of 512 meters.
The Synco 700 controller adds up the pulses every 5 minutes. Web server reads the current values daily between 5 and 10 am.
The KNX S-Mode values are transmitted by meters with COV to the OZW772… Current values, defined for a meter media, are taken over in the consumption
data file daily between 5 and 10 am. Initialize QAX9…
Web server constructs
Current value Meter WRI982 WRI982 QAX9… QAX9… OZW772… Synco 700 OZW772… S-Mode OZW772…
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The user determines the read time for consumption data file via file transfer. With daily readings, the user can read the web server value up to 24 hours after the web server reading.
The consumption data file is sent by e-mail as soon as the consumption data is collected.
Via the chain (1) (3) (5) (6), the current values for WRI982 pulse meters are a maximum of 5 hours old plus read delay.
Via the chain (2) (3) (5) (6), the current values for M-bus meters are a maximum of 8 hours old plus read delay.
Via the chain (4) (5) (6), the current values for the pulse meters to Synco 700 controllers feature only the read delay.
The current value timestamp is written as follows to the consumption data file: For WRI982 pulse meters: Added up hourly by WRI982.
For M-bus meters without a manufacturer-specific timestamp: by QAX9…, at read time QAX9…/WRI982.
For M-bus meters with a manufacturer-specific timestamp: by the M-bus meter at the manufacturer-specific time.
For Synco 700 pulse inputs: By Synco 700 controller, added up every 5 minutes.
Monthly values are transmitted every 24 hours.
The monthly values are transmitted on the third day of the month between 5 am and 10 pm.
Not all M-bus meters form their own monthly values. If not, the QAX9… assumes the task.
The Synco 700 controller forms its own monthly value. The reading takes place on the third day of the month between 5 am and 10 pm.
The OZW772… does not have an S-Mode input for monthly values and therefore does not provide any. The entry in the consumption data file remains blank.
The due day values of meters connected to the QAX9… are formed on the centralized due day. The due day for QAX9… is active in the default state (Default setting of December 31), but can be edited on the QAX9… or via web server (see Section 2.5.3.6 “Consumption data”).
Please note the following, however:
A temporary due day value is formed during the commissioning of the QAX9…: This is the start value of the meter using the start value date.
The first due day value is formed using the due day date if the centralized due day is reached for the first time.
Due days that differ from the centralized due day (by the corresponding M-bus meters) are blocked accordingly.
A due day value is used for precision only if one M-bus meters supplies a due day value on the centralized due day.
OZW772… Reading
Summary
Current value time stamp
Monthly values WRI982 QAX9… QAX9… OZW772… Note Synco 700 OZW772… S-Mode OZW772… Due day
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Due day values are transmitted every 4 hours.
The due day values are transmitted on the third day of the month between 5 am and 10 pm.
Please note the following for the web server at the conclusion of the comments under "Due day formation":
The temporary due day value and its dates is written to the due day field for in the consumption data file if the QAX9... has not yet achieved a due day by the first transmission to the web server.
At the latest then, the first real due day value with due date is available on the QAX9… 12 months after commissioning and is written at the start of the next month (third day) to the field due day of the consumption data file.
A due day value is still available on the web server on the third day of the month if the due day is set to the first day of a month.
Synco 700 controllers do not support the due day function. The OZW772… do not have an S-Mode input for due date.
A change to the configuration of the QAX9.../ Synco 700 controller causes a meter replacement. The information is provided to the web server accordingly.
A new generation of the device web pages after a device exchange of QAX9… or Synco 700 controller always results in a meter replacement even when the same meter is re-connected to the replacement device.
Hiding a device in the device list also results in a meter replacement. Changes to the following information are interpreted as a meter replacement: Meter medium
Meter ID number
The following changes are also evaluated for pulse meters: Unit factor (e.g. from "10 Wh" to "100 Wh")
Pulse value (counter or denominator) Start value
Changes to the following information are interpreted as a meter replacement: Unit
Format (number of decimal places)
The following events are interpreted as meter changes: Change to data point type with ETS
Change to meter media with ETS
If the new value is less than the old value Time ratios WRI982 QAX9… QAX9… OZW772… Notes Replace meter Notes QAX9… Synco 700 controller S-Mode meter
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The following time ratios apply to meter replacement:
It last up to 8 hours from the time the meter (as defined above) is replaced until the information is available on a consistent basis on the QAX9…
The following midnight (12:00 am) OZW772… automatically re-generates all devices where it has detected a meter replacement.
You must also wait 8 hours after meter replacement when generated manually. The following information is available immediately for Synco 700 controllers. After writing S-Mode data points with ETS, the device web page for OZW772…
must be generated or updated.
The OZW772… detects the meter replacement during the daily reading between 5 and 10 am.
The web server maps the web server start value as soon as it receives the first meter value after generating the Synco device.
The web server start value is not the same as the start value for the meter available on the QAX9…
An initial generation also occurs when the Synco device is hidden and then shown after using generate. The reason for the exception is that hiding Synco devices with meters is backed up using meter replacement. Otherwise, meters relevant to allocations can unintentionally disappear from the consumption data file.
The Siemens system for transmitting acquired consumption data for meters uses the latest technology and security standards. The value as displayed on the meter applies for allocation purposes in the event of differences between the displayed value on the meter and the value as transmitted.