ZIV 7IRD-A - Communications; Communications Settings; Communications Types; Communication with the Unit

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Chapter 6. Description of Operation of Protection Subsystem

M7IRDA2003I

7IRD-A/J/M: Distribution Protection & Control Terminal

6-44

Each indicator can be defined as latched or unlatched. In the case where the LED is latched, it

appears illuminated until reset. By means of the keypad, (see Chapter 8 Alphanumeric Keypad

and Display) the order to reset the LEDs can be executed using the key F2.

The latching function resides in the volatile memory section of the microprocessor. A power

supply loss to the unit will cause any latched LED to reset.

The LEDs can be programmed to any of the available logic outputs indicated in Table 6-3. The

programming of the LEDs has been done at the factory, but can be modified by ZiverCom

through a local communications port.

6.16 Communications

6.16.1 Communications Settings

The Communications settings are described in detail in Chapter 5 (Settings) and are related to

Terminal Address, Baud Rate, Stop Bits, Parity, Communications Timeout and Rated

Frequency.

6.16.2 Communications Types

The 7IRD’s has two types of communications ports: one RS232C in the front that is fixed, and

another port in back which has connections for Glass Fiber Optic cable, 1mm Plastic Fiber Optic

cable, RS232C and RS485. The technical details about communications can be found in

Chapter 2 (Technical Characteristics).

6.16.3 Communication with the Unit

Communications through these ports can be done with the communications program,

ZiverCom

, which poles the terminal in protection mode. The ZiverCom

program allows

dialogue with the 7IRD family of terminals as well as other equipment, either locally (through a

PC connected to the front port) or remotely (via back port). ZiverCom

covers all the

necessities for programming, adjustments, records, files, etc. is protected against unauthorized

users by access codes. ZiverCom

runs in WINDOWS

and utilizes easy to use menus and

buttons to access the different menus.

It is also possible using PROCOME protocol (according to model), to communicate with

equipment to request control changes and to execute commands.

The configuration of the remote communication ports can only be accessed through the HMI. It

is important that the adjustment for the local port is fixed at 4.800 bauds, 1 stop bit, and

adjustable parity, as indicated in Chapter 5.

In the model 7IRD exist two controllers; one is for the communications port so that several ports

can be established at one time.