Direct Inputs/Outputs - GE T35 Instruction Manual

5.2 PRODUCT SETUP
a) MAIN MENU
!
PATH: SETTINGS PRODUCT SETUP
# DIRECT I/O
#
5
Direct inputs/outputs are intended for exchange of status information (inputs and outputs) between UR-series relays con-
nected directly via Type-7 digital communications cards. The mechanism is very similar to IEC 61850 GSSE, except that
communications takes place over a non-switchable isolated network and is optimized for speed. On Type 7 cards that sup-
port two channels, direct output messages are sent from both channels simultaneously. This effectively sends direct output
messages both ways around a ring configuration. On Type 7 cards that support one channel, direct output messages are
sent only in one direction. Messages will be resent (forwarded) when it is determined that the message did not originate at
the receiver.
Direct output message timing is similar to GSSE message timing. Integrity messages (with no state changes) are sent at
least every 1000 ms. 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:
1.
DIRECT RING BREAK
sent from a UR-series relay are not being received back by the relay.
2.
DIRECT DEVICE 1(16) OFF
at least one direct device are not being received.
Direct input/output settings are similar to remote input/output settings. The equivalent of the remote device name strings for
direct inputs/outputs is the
messages. All UR-series IEDs in a ring should have unique numbers assigned. The IED ID is used to identify the sender of
the direct input/output message.
If the direct input/output scheme is configured to operate in a ring (
messages should be received back. If not, the Direct Input/Output Ring Break self-test is triggered. The self-test error is sig-
naled by the
DIRECT RING BREAK
Select the
DIRECT I/O DATA RATE
the local relays configured with the 7A, 7B, 7C, 7D, 7H, 7I, 7J, 7K, 72 and 73 fiber optic communication cards may be set to
128 kbps. For local relays configured with all other communication cards (i.e. 7E, 7F, 7G, 7L, 7M, 7N, 7P, 7R, 7S, 7T, 7W,
74, 75, 76 and 77), the baud rate will be set to 64 kbps. All IEDs communicating over direct inputs/outputs must be set to
5-34
!"
DIRECT I/O
DIRECT OUTPUT
DEVICE ID: 1
DIRECT I/O CH1 RING
MESSAGE
CONFIGURATION: Yes
DIRECT I/O CH2 RING
MESSAGE
CONFIGURATION: Yes
DIRECT I/O DATA
MESSAGE
RATE: 64 kbps
DIRECT I/O CHANNEL
MESSAGE
CROSSOVER: Disabled
# CRC ALARM CH1
MESSAGE
#
# CRC ALARM CH2
MESSAGE
#
# UNRETURNED
MESSAGE
# MESSAGES ALARM CH1
# UNRETURNED
MESSAGE
# MESSAGES ALARM CH2
(direct input/output ring break). This FlexLogic™ operand indicates that direct output messages
(direct device offline). This FlexLogic™ operand indicates that direct output messages from
DIRECT OUTPUT DEVICE ID
FlexLogic™ operand.
to match the data capabilities of the communications channel. Back-to-back connections of
T35 Transformer Management Relay
Range: 1 to 16
Range: Yes, No
Range: Yes, No
Range: 64 kbps, 128 kbps
Range: Disabled, Enabled
See page 5–38.
See page 5–38.
See page 5–39.
See page 5–39.
. The
DIRECT OUTPUT DEVICE ID
DIRECT I/O RING CONFIGURATION
5 SETTINGS

5.2.16 DIRECT INPUTS/OUTPUTS

identifies the relay in all direct output
: "Yes"), all direct output
GE Multilin