Commands And Parameters; The Blink Task; The Status Request; General Remarks On Settings - Aquametro CALEC ST' 11741 En Complément Des Instructions De Montage Et D'utilisation

Commands and parameters

The internal cyclical functions (communication to counter, self-monitoring, etc.) as well as the following commands are available to the net-
work user:

The blink task

LONWORKS ® technology has a 'blink' command to identify a node whose address is known. When this is activated, the particular node re-
acts either optically or acoustically. CALEC
• The LCD of the counter keeps changing between the energy and segment test display and thus flashes for approx. 3 - 4 seconds (from
firmware version 1.01.01 and above).
• The blink LED (located near the service LED) flashes twelve times at three times a second.
This blinking can be used as a tool in service procedures to help identify nodes.

The status request

The following status prompts about the input variable 'nviRequest' are supported in 'Node object #0'
RQ_NORMAL
RQ_UPDATE_STATUS
RQ_UPDATE_ALARM
RQ_CLEAR_STATUS
RQ_CLEAR_ALARM
RQ_REPORT_MASK
- invalid_id:
- invalid_request:
- out_of_limits:
- electrical_fault:
- unable_to_measure:
- report_mask:
- feedback_failure:
- comm_failure:

General remarks on settings

All parameters listed here are processed and stored in the calculator and not on the network card. The task triggered by network commu-
nication thus causes the calculator to be programmed.
A delay of around 20 seconds can be expected until the changes to input network variables (nvi...) affect the output network variables (nvo...).

Network input variables

The following input variables are available for setting a node:
nviSetTime
nviSetTimeMem1

The freeze command

If 'Bit 0' of variables: 'nviDoFrz' in 'Utility Data Logger Register': "Freeze Memory" is set to '1', then CALEC
readings of all meter datas:
If the 'freeze' command is used via the network, the date and all active readings of the meters are immediately stored in the counter. The
values thus frozen can now be read over the given network valuables of the "Freeze Memory" object. (A delay of up to 6 seconds has to be
taken into account.)
Freeze data are not available via the counter display.
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® ST supports the "blink" network command by reacting as follows:
These requests generate a current report on the device status from the LON
node and calculator: These can be internal communication problems
between LON nodes and the calculator or application-based errors or alarms
such as exceeding measuring range limits and overflows.
These apply only to node-based requests so that all replies for objects #0..6
('objekt_id') are identical.
Stored flags such as ' feedback_failure' and 'electrical_fault' are deleted.
The information is again generated if the fault remains.
All flags supported by the above requests are shown. These are:
- the flag indicates that a request of the selected object is not supported.
- the request is not supported.
- a user alarm or overflow is present.
- an electrical fault / error is present.
- the meter is not running.
- active flags correspond to the possible mask.
- the setting of an input variable is not adopted.
- internal communication is faulty.
This is used for setting of the date and time of the heat meter.
This is used for setting the date (preset date, Memory 1) .
® ST immediately freezes the