Toshiba GR200 Series Instruction Manual page 531

Communication application (COMM_APPL)
Communication channels† can be switched when new configuration is introduced into the
communication network; there is a possibility that the data carried with the new configuration
is not transferred to the correct destination. Communication application (COMM_APPL)
function can assign a unique relay-address to each IED; consequently, respective IEDs can
check the received data either true or false using the relay-address.
Using the COMM_APPL function the user can send and receive an arbitrary data in a
bit. Auxiliary areas of the transmission frame are used for sending the arbitrary bit-data; they
are named "sub-communication channels". Several relay applications requires the user to send
some data for the remote terminals; thus, the user may be required to set up the sub-
communication channels using the COMM_APPL function. The transmission frames and
others are discussed separately (see Chapter
†Note: If communication channels are not connected with the IED, and when the IED
operates without communication, the user should set Off for setting [INTCOM].
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Note: The implementation of such features is dependent upon the selection of hardware and
the configuration of functions. Several IED models do not support certain features. To
determine whether a particular feature has been implemented within an IED, identify the IED
ordering number; and check the order number at the "G&T position" referring to the
comparison table below. For more information, see
Table 2.37-1 Comparative table in respective ordering numbers
RYID
Sub-channel
Number of channels
✓: Applicable
feature
Relay address
Sub-communication channel
Maximum channel number
NA: Not applicable
- 508 -
Relay application: Transmission control function
Appendix: Ordering
6F2S1914 (0.49)
.
Ordering No. at "G&T"
33 37
✓ ✓
✓ ✓
2 2
GRL200 (Soft 033 & 037)
).