Direct Inputs And Outputs Configuration - GE D90 Plus Instruction Manual

DIRECT INPUTS AND OUTPUTS
NOTE:

Direct inputs and outputs configuration

146
Direct output message timing is similar to GSSE message timing. Integrity messages (with
no state changes) are sent at least every 1000 ms at 64 kbps or 500 ms at 128 kbps.
Messages with state changes are sent within the main pass scanning the inputs and
asserting the outputs unless the communication channel bandwidth has been exceeded.
Two self-tests are performed and signaled by the following FlexLogic™ operands:
• and
CH1 DIR IO RING BREAK
output messages sent from a UR
device.
• to
CH1 DIR DEV 1 OFF CH1 DIR DEV 16 OFF
These operands indicate that direct output messages from the corresponding direct
device are not being received.
Direct input and output settings are similar to remote input and output settings. The
equivalent of the remote device name strings for direct inputs and outputs is the
. Delivery time for direct input and output messages is approximately 0.2 of a
Device ID
power system cycle at 128 kbps and 0.4 of a power system cycle at 64 kbps, per each
"bridge".
Direct inputs and outputs exchange between UR
inter-relay communication card's G.703, C37.94, direct fiber, and RS422 interfaces. Direct
inputs and outputs exchange with UR-series IEDs is supported on the C37.94, direct fiber,
and RS422 interfaces only.
Select the Settings > Communications > Direct I/O menu item to open the direct inputs
and outputs configuration window.
Figure 119: Direct inputs/outputs configuration settings
The following setting is available and applicable to both channels in all direct inputs and
direct outputs.
Direct Device ID
Range: 1 to 16 in steps of 1
Default: 1
This setting identifies the D90
ring should have unique numbers assigned. Each ID is used to identify the sender of the
direct input/output message.
The following settings are available for each channel and are applicable to all direct inputs
and direct outputs.
BREAK: These operands indicate that direct
CH2 DIR IO RING
Plus
-series device are not being received back by the
and
CH2 DIR DEV 1 OFF
Plus
-series IEDs is supported over the
Plus
in all direct output messages. All UR
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: COMMUNICATIONS
to
CH2 DIR DEV 16 OFF:
Direct
Plus
-series IEDs in a