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The protocol communicates in series implements serial communication with devices according to international standard IEC62056-21, protocol mode C.
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- Communication protocol "IEC62056-21:2002 Serial".
- The station address (device) is optional. If the parameter is empty, the device must answer. If there are more devices on one line (e.g. RS485 bus), the device address must be set. The device address consists of a maximum of 32 characters that are formed from figures (0 - 9), capital letters (A - Z), small letters (a - z), or space ( ). The zeroes in front of a valid figure are ignored (i.e. address 10203 = 010203 = 000010203).
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| Parameter | Meaning | Unit | Default value | ||||||
|---|---|---|---|---|---|---|---|---|---|
| The phone number for connection via modem with this station (only lines of MODEM category). | ||||||||
| The maximum waiting time on connection via modem (only lines of MODEM category). | sec | 60 | ||||||
| The maximum number of attempts to connect via modem (only lines of MODEM category). | 1..20 | 1 | ||||||
| Delay before attempting to dial after an unsuccessful connection attempt (only lines of MODEM category). | sec | 30 | ||||||
| The time delay between sending the request and reading the answer. Note: a device sends a 3-character manufacturer's identification in the identification message. The standard defines that if the 3-rd character is a lower case letter, (e.g. in identifications ELm or UNi), the minimum reaction time for such a device is 20 ms instead of 200 ms. If the 3-rd character is an upper case letter, this does not preclude supporting a 20 ms reaction time. | ms | 200 | ||||||
| The time delay between reading the answer till it is completed. See the note for the Wait First Timeout parameter. | ms | 200 | ||||||
| A retry count of reading response until its completion. | 1 .. 100 | 20 | ||||||
| The delay between the request retries if the error communication occurs. | ms | 1000 ms | ||||||
| A retry count of request in case of the communication error. | 1 .. 20 | 3 | ||||||
| Timeout for waiting for an answer to modem hangup operation (only lines of MODEM category). | sec | 15 | ||||||
| Delay after transmitting an acknowledgment of received data (ACK). | ms | 100 | ||||||
| Value of 'Z' parameter - Baud rate identification (for baud rate changeover) of Acknowledgement/option select message request of protocol's C mode. AUTO option finds out automatic the value 'Z' from the acknowledging answer and uses it. | 300 Baud 600 Baud 1200 Baud 2400 Baud 4800 Baud 9600 Baud 19200 Baud 38400 Baud 57600 Baud 115200 Baud AUTO | 2400 Baud | ||||||
| The parameter enables the reading of the current values ("data readout"). | YES/NO | YES | ||||||
| The parameter enables reading of the "manufacturer-specific table" values, 1-st block. Choice '-' means the values are not read, choice '6' to '9' means selected "manufacturer-specific table" will be read. | - 6 7 8 9 | - | ||||||
| Manuf. Spec. Table Readout Nr.2 (Y) | The parameter enables reading of the "manufacturer-specific table" values, 2-nd block. Choice '-' means the values are not read, choice '6' to '9' means selected "manufacturer-specific table" will be read. | - 6 7 8 9 | - | ||||||
| Manuf. Spec. Table Readout Nr.3 (Y) | The parameter enables reading of the "manufacturer-specific table" values, 3-rd block. Choice '-' means the values are not read, choice '6' to '9' means selected "manufacturer-specific table" will be read. | - 6 7 8 9 | - | ||||||
| The parameter enables the reading of the historical data from the profile. | YES/NO | YES | ||||||
| Profile name - OBIS code of load profile used during the reading of historical data from profile. | P.01 | |||||||
| Date and time mask used to read historical data from the profile. Meaning of the "z" flag - see the description of the Session Recognition Flag parameter. The letter " z" is used to set the time and is replaced by a value of 0, 1, or 2 according to the Session Recognition Flag parameter. | zyymmddhhmi | |||||||
| Time depth of historical profile readings. | hour | 24 | ||||||
| Time rounding of data from a profile. | min | 15 | ||||||
| The time range of data that is queried from the profile in one request. It is entered as a multiple of the "Time Round" parameter. | x Time Round | 2 | ||||||
| Access level used to read historical data from profile. | 0-9 | 5 | ||||||
| Method of reading from the profile:
BLOCK READ divides the data into several blocks with the size of Profile Read Block Length rows. Block reading makes sense on lines with higher error rates. | - | VDEW read command (R5) | ||||||
| Block size (number of rows) if BLOCK READ from the profile is used - if Profile Read Mode is VDEW block read command (R6) or P1 + VDEW block read command (R6) | row | 4 | ||||||
| This parameter enables specifying a special sequence that may be required by some electrometers. So far the only known sequence is F101() (The whole sequence sent to electrometers is <SOH>E2<STX>F101()<ETX><SOH> ). | - | |||||||
| The password necessary for changing the configuration of the device (level 1) used to set the date and time. | "00000000" | |||||||
| A flag that indicates the type of date/time used by the device. Electrometers LZQJ manufactured by EMH Elektrizitätszähler indicates the type of date/time by this flag (0=Normal Time, 1=Summer Time, 2=UTC Time). This flag is used by Time Mask and Date Mask parameters to set the time and by Profile Time Mask parameter to read historical data from the profile. Note: Both Normal Time and Summer Time values will cause the flag to be set depending on the time currently set or read. | Normal Time Summer Time UTC Time | Normal time | ||||||
| Register used to set the time. The parameter is important only if the synchronization is enabled on the "Time parameters" tab in the configuration of the station. | 0.9.1 | |||||||
| Mask used to set the time. The letter "z" is used for time conversion according to the Session Recognition Flag parameter. The parameter is important only if the synchronization is enabled on the "Time parameters" tab in the configuration of the station. Note: Some meters are disturbed by summer/winter time ("z") flag and require mask hhmiss | zhhmiss | |||||||
| Register used to set the date. The parameter is important only if the synchronization is enabled on the "Time parameters" tab in the configuration of the station. | 0.9.2 | |||||||
| Mask used to set the date. The letter "z" is used for dátumu conversion according to the Session Recognition Flag parameter. The parameter is important only if the synchronization is enabled on the "Time parameters" tab in the configuration of the station. Note: Some meters are disturbed by summer/winter time ("z") flag and require mask ddmmyy or require a year-month-day order (zyymmdd or yymmdd) | zddmmyy | |||||||
| Special settings used when setting the date and time. These may be required by some electricity meters.
| Normal (00000000) | Normal | ||||||
| A special initial string of modem 1 (only for MODEM lines). | AT&FE0V1Q0B0X3L0M0 | |||||||
| A special initial string of modem 2 (only for MODEM lines). Explanation of recommended settings: S37=5 1200bps DTE-DTE speed - limits the speed for modems. Many devices use modems with limited transfer speeds and this setting can speed-up the connection establishment process. Higher transfer speeds must be negotiated individually. &D2 DTR drop to hangup - for matching with the parameter of modem line (line configuration, tab "Modem - parameters", check the option "Use DTR for Hangup"). S0=0 Disable auto-answer. Auto-answer will not be used. S30=2 20 sec inactivity timeout - automatic hangup after idle timeout expired. Necessary for assuring connection termination after the communication with the last device is over. | ATS37=5&D2S0=0S7=60S30=2 | |||||||
| Full tracing of communication, loaded values of I/O tags and other debug information are shown. | YES/NO | NO | ||||||
| It activates data processing according to software implementation of protocol from Unicontrols. | YES/NO | NO | ||||||
| Activates reading of profile index (map of records stored in memory) within the reading of historical data from profile (Unicontrols device only). The retrieved index is not processed further and serves only as debugging information for Unicontrols. | YES/NO | NO |
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I/O tag address corresponds to standard IEC 62056-61:2002 Object Identification systemSystem (OBIS) in terms of "Annex A - Code presentation".
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