Toshiba GR-200 Series Instruction Manual page 816

Multi functional protection ied

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Communication

SLAVE PROTOCOL

Figure 11.4-3 Selection of Modbus on the Commination setting menu

Note; This sample menu illustrates how to select the Modbus, so that we discuss neither

the inclusion of IEC61850, IEC103, and DNP3.0, nor the selection of those

protocols. See Figure 11.1-1 to check the inclusion of the protocols in the IED.

The Modbus slave operation can be switched off briefly if the setting [MODBUS_BLK] = On.

Communication

SLAVE PROTOCOL

Figure 11.4-4 Blocking the Modbus operation (LCD setting menu)

Modbus interface

When the Modbus protocol is provided in the IED†, the measurement and status information

of the IED are transferred to the substation computer by that protocol. It is executed with

message frames from the substation computer message (called "Master query"); then, the data

(called "Slave response") is transferred to the substation computer from the IED. The message

frames can include the following data:

Measurement:

Event status:

†Note: The GR-200 series IEDs do not support to applications (control functions, such as,

DPOS etc.) in the Modbus protocol.

SLAVE PROTOCOL

Slave Protocol

MODBUS_SELECT

Current quantities, voltage quantities, etc.

Events, fault modes, counters, etc.

Clock setting /synchronization

6F2T0200 (0.15)

SLAVE PROTOCOL

set [MOSBUS BLK]=On

GRE200 (1,2)

Chapters

Gre200-1 Gre200-2