38/52
Operation
© Gyr
D000030875 en q
– E350 series 2, 1-phase ZCF100Ax/Cx – User Manual
5.5
Data Readout
The power supplier can read the meter data, particularly the energy con-
sumption, locally in two ways:
Reading the meter’s LCD. Only the data shown in the display list can
be recorded.
Automatic data readout via the optical interface with the aid of an AMR
Module (e.g. hand held terminal T3000). Further data are then
accessible depending on the parameterisation (total registers etc.).
Log corresponds to the provisions of IEC62056-21, a communication
standard for meters.
5.5.1
IEC 62056-21 Mode C
The meter supports IEC 62056-21 mode C-a. This enables the reading of
data from the meter in the data readout mode. After an initial sign-on se-
quence, the meter transmits its data to the HHT. This consists of a number
of items which are set in the configuration. Each item is sent in ASCII with
OBIS (IEC 62056-61) identifiers. Each identifier is on a separate line (sepa-
rated by carriage return and line feed characters
C
R
L
F
) and follows the for-
mat
Identifier (value*units).
The maximum transmission rate is 9600 bps. The response message identi-
fies the software version and the IEC 62056-21 transmission rate mode used.
The meter provides also a manufacturer specific mode C-C, which delivers
only a part of the readout list (start and end item are configurable during
production). This can be used for fast readout for frequently required values.
5.5.2
Readout Configuration
The readout items, their order in the list, along with the number of decimal
places for the registers, are specified in the configuration. The register
sizes can have up to 6 integer digits and up to 3 decimal places. This is
independent on the display configuration.
The readout list (similar to the display list) consists of a number of specified
items. The customer specifies the readout sequence. This sequence is set
at the factory. All items are identified with OBIS codes when read out.
The items that can be placed in the readout list (in any order except for
"Error code" which is always first in the list) are listed in section 5.2.9
"Meter Display List
– Available Items with OBIS Codes" on page 34. Most
of these items can be included in the readout list.
The error code consists of 8 bits and describes the following:
Bit number
Allocation
0
-
Not used
1
-
MMI initialisation or communications failure
2
-
Error accessing EEPROM
3
-
Calibration data is corrupted
4
-
Not used
5
-
Error restoring energy registers
6
-
Data saved to EEPROM on power fail is corrupted
7
-
Not used
Readout and
display items
Readout error
code (F.F)
