GE C70 Instruction Manual page 336

PRODUCT SETUP
If the direct input and output scheme is configured to operate in a ring (
CH2 RING CONFIGURATION
self-test is triggered. The self-test error is signaled by the
Select the
DIRECT I/O DATA RATE
over direct inputs and outputs must be set to the same data rate. UR-series IEDs equipped with dual-channel
communications cards apply the same data rate to both channels. Delivery time for direct input and output messages is
approximately 0.2 of a power system cycle at 128 kbps and 0.4 of a power system cycle at 64 kbps, per each "bridge."
Table 5-17: Direct input and output data rates
Module
2A, 2B
2E, 2F
2G, 2H
2I, 2J
72, 73
74, 75
76, 77
7A, 7B, 7C, 7D
7E, 7F, 7G
7H, 7I, 7J, 7K
7L, 7M, 7N, 7P, 7Q
7R, 7S
7T, 7W
5
The G.703 modules are fixed at 64 kbps. The
The
DIRECT I/O CHANNEL CROSSOVER
over messages from channel 1 to channel 2. This places all UR-series IEDs into one direct input and output network
regardless of the physical media of the two communication channels.
The following application examples illustrate the basic concepts for direct input and output configuration. See the Inputs
and Outputs section in this chapter for information on configuring FlexLogic operands (flags, bits) to be exchanged.
Example 1: Extending the input/output capabilities of a UR-series relay
Consider an application that requires additional quantities of contact inputs or output contacts or lines of programmable
logic that exceed the capabilities of a single UR-series chassis. The problem is solved by adding an extra UR-series IED,
such as the C30, to satisfy the additional input and output and programmable logic requirements. The two IEDs are
connected via single-channel digital communication cards as shown in the figure.
In this application, apply the following settings. For UR-series IED 1:
5-132
is "Yes"), all direct output messages are received back. If not, the direct input/output ring break
to match the data capabilities of the communications channel. All IEDs communicating
Supported data rates
64 kbps
64 kbps
128 kbps
64 kbps, 128 kbps
64 kbps, 128 kbps
64 kbps
64 kbps
64 kbps, 128 kbps
64 kbps
64 kbps, 128 kbps
64 kbps
64 kbps
64 kbps
setting applies to a C70 with dual-channel communication cards and allows crossing
Figure 5-59: Input and output extension via direct inputs and outputs
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
DIRECT I/O CH1 RING CONFIGURATION
FlexLogic operand.
DIRECT RING BREAK
setting is not applicable to these modules.
DIRECT I/O DATA RATE
CHAPTER 5: SETTINGS
or
DIRECT I/O