Hitachi Energy 520BID01 Binary Input Module

Applications

The module 520BID01 provides 16 galvanically isolated inputs for up to 16 binary process signals.

The input signals are scanned and processed with a time resolution of up to 1 ms. The input signals can be assigned to processing functions according to configuration rules.

The input signals can be assigned to processing functions according to configuration rules.

The module 520BID01 can process the following types of signals or combinations of signals:

- 16 time-stamped single-point messages (SPI)

- 8 time-stamped double-point messages (DPI)

- 2 8-bit digital measured values (DMI8)

- 1 16-bit digital measurement (DMI16)

- 16 integrated totals (max. 25 Hz) (ITI)

- 2 step position information, 8 bits each (STI)

- 2 bit string inputs, 8 bits each (BSI8)

- 1 16-bit bit string input (BSI16)

- or a combination of these signal types

The module is available in two versions (rubrics):

- 520BID01 R0001: Process voltage 24 to 60 VDC.

There are LEDs for each input and a common loop for each of the 8 inputs.

- 520BID01 R0002: Process voltage 110 to 125 V DC.

Each input is signalled by an LED and each of the 8 inputs has a common loop.

Characteristics

Binary inputs

The inputs are galvanically isolated by means of optocouplers. 8 input channels are grouped together and have a common loop.

The binary input channels are protected against reverse voltage. If the input signal is of the wrong polarity, the input current will be zero.

There are 16 LEDs on the module to indicate the signal status of the inputs.

The LEDs are switched by the controller.

The maximum permissible frequency of the counter pulses is 25 Hz.

Power input

The power required by the module is supplied via the RTU520 I/O bus connector.

I/O controller (IOC)

The microcontroller on the module handles all time-critical tasks of the parameterised processing function.

The microcontroller on the IOC module handles all time-critical tasks of the parameterised processing functions. In addition, it

communicates interactively with the RTU I/O bus.

All configuration data and processing parameters are loaded by the communication unit via the RTU I/O bus.

The communication unit loads all configuration data and processing parameters via the RTU I/O bus when communicating with an I/O adapter (e.g. 520ADD01) or a

module is connected to the RTU520 I/O bus.

The binary input unit performs the following processing functions

Processing functions for different types of signals:

- Digital filtering and suppression of contact jumps

- Validity check and suppression of intermediate input states

Digital filtering, suppression of contact jumps Validity check and suppression of intermediate input states

- Consistency check for all channels assigned to digital measurement values or step position information

- Summing of incremental pulses to form a combined total in a register with 31-bit resolution.

Formation of combined totals in registers with 31-bit resolution

- Copy the combined total into the freeze register for

Data Retention

The module provides a data buffer for temporary storage of up to 50 event messages, including timestamps.

Up to 50 event messages including timestamps.

Stored in chronological order for transmission to the communication unit (CMU).

During initialisation and operation, the module performs a series of tests.

If a fault occurs, it is reported to the CMU. All fault conditions affecting the function of the module are

be signalled as general faults by the red LED.

Module faults are detected by the communication unit.