IEC 1107 Control

Just imagine, you require the IEC 1107 meters, which are already integrated into the remote meter reading system to work independently and to report only when something is out of order. If so continue reading. The following information will assist you in making strategic decisions.

Then you need the successfully proven technology of the ENC 400 family. Data is transmitted via conventional communication routes from the remote devices to a main station, and there the data is recorded, compiled and displayed in conventional form. Our motto - everything you need in one system.

The instrument series ENC 400 is remarkable for its extensive spectrum in application. The aim of GÖRLITZ AG is not to limit the user in just applying the technique, but to be prepared for every eventuality and for the future.

With the configuration program Para 400 so called Executer applications are downloaded via remote parametering or via physical/optical connection and deposited to run in the device. With the use of additional instruments, further specific functions are available.

With the assistance of the Executer program IEC-1107 Control, the standard output data set of a connected meter is read cyclically. For the further evaluation of the meter's raw data records, there are actually 4 control functions implemented.

Monitoring of Error register

This function monitors the errors in the meter and indicates the change automatically to the main station.

If a change in the register is noticed, a message is transmitted to the main station reporting the content of the error register. Both ,the set and the reset of an error bit, are recognized as a change.

As the position of the error register can be different in the raw data record, it is possible to declare it in the Executer. Furthermore the ID for the receiving main station and the priority for the messages are to be assigned. If the pre-defined identification of the error register is not found at the parameterized position in the raw data record, no response is possible.

Power failure detection

The Executer IEC-1107 Control monitors the registers which contains the status of the phase voltages and generates the change automatically to the main station.

For the phase voltage, the register must have the EDIS identification 32.24 or 52.24 and 72.24 in the raw data record for the individual phase.

If the value of one of the three voltages falls below the parameterized value, a message will be transmitted to the supervisory system indicating the status of the three phase-lines. When the voltage rises above the limit value again, a message will once again be transmitted to the system indicating the current status:

Messages transmitted to the main station:

The position of the register for the first phase voltage in the raw data record must be parameterized in the setup of IEC-1107 Control. Here, only the EDIS identification of the first phase (identification 32.24) is checked. Furthermore, the positions of the phase voltages for all 3 phases are to be parameterized. Finally the ID for the receiving main station as well as the priority of the messages to be sent must be set.

If the pre-defined EDIS identification of the phase voltage is not found at the parameterized position in the raw data record, no response is possible.

Monitoring the meter reset

This function monitors changes in the reset meter, thus any automatic or manual resetting will be detected. If a resetting occurs (change in the prior-value measurement register), a register readout for the billing data is started and the data is transmitted to the main station.

Following an initial start up of the device, a register readout will be run after the next reset.

The register for the meter reset counter must have the EDIS identification 0.1.0 (followed by a bracket). 2 bytes of data will then be evaluated.

If a change is detected, a readout is started and the raw meter data is transmitted to the main station. The position of the register for the meter reset counter in the raw data record must be parameterized of the meter. Furthermore the ID for the receiving main station and the priority of the messages to be sent must be parameterized. If the pre-defined identification of the meter reset counter is not found at the relevant position in the raw data record, no response is possible.

Maximum monitoring

This function monitors the register of the "last mean value", which contains the power value of the last metered load period. If the pre-defined value is exceeded, a corresponding message is transmitted to the supervisory system.

The register for the last mean value must have the EDIS identification 1.5 (followed by a bracket). 5 bytes of data will then be evaluated.

If the content of the register exceeds a parameterized limit value, a relay in the ENC 400 unit is activated and a message is transmitted to the main station. For this, channel 5 or channel 6 must be declared as a relay output. If the value of the register falls again below the limit value, the relay is reset and a message will be once again transmitted to the main station.

Messages that are transmitted to the main terminal station:

The position of the register for the last mean value in the raw data record of the meter must be parameterized. Furthermore the ID for the receiving main station and the priority of the messages are to be assigned.

If the pre-defined identification of the register for the last mean value is not found at the parameterized position in the raw data record, no response is possible.

General operation:

The meter to be read is connected to channel 2 of the ENC 400 unit. For this, channel 2 must be parameterized as Sercom-interface.

As the registers to be read can be at different positions in the raw data record, depending on the parameterization of meter, the module IEC-1107 Control must be advised on these positions.

It is therefore necessary, that the raw data of the meter being used is known and the positions of the corresponding values are determined. Then they must be declared when parameterizing the module.