CHAPTER 5: SETTINGS PRODUCT SETUPC60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUAL 5-1075Direct input and output settings are similar to remote input and output settings. The equivalent of the remote device namestrings for direct inputs and outputs is the DIRECT OUTPUT DEVICE ID setting, which identifies the relay in all direct outputmessages. All UR-series IEDs in a ring need to have unique numbers assigned. The IED ID is used to identify the sender ofthe direct input and output message.If the direct input and output scheme is configured to operate in a ring (DIRECT I/O CH1 RING CONFIGURATION or DIRECT I/OCH2 RING CONFIGURATION is “Yes”), all direct output messages are received back. If not, the direct input/output ring breakself-test is triggered. The self-test error is signaled by the DIRECT RING BREAK FlexLogic operand.Select the DIRECT I/O DATA RATE to match the data capabilities of the communications channel. All IEDs communicatingover direct inputs and outputs must be set to the same data rate. UR-series IEDs equipped with dual-channelcommunications cards apply the same data rate to both channels. Delivery time for direct input and output messages isapproximately 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 5-14: Direct input and output data ratesModule Channel Supported data rates74 Channel 1 64 kbpsChannel 2 64 kbps7L Channel 1 64 kbps, 128 kbpsChannel 2 64 kbps, 128 kbps7M Channel 1 64 kbps, 128 kbpsChannel 2 64 kbps, 128 kbps7P Channel 1 64 kbps, 128 kbpsChannel 2 64 kbps, 128 kbps7T Channel 1 64 kbps, 128 kbps7W Channel 1 64 kbps, 128 kbpsChannel 2 64 kbps, 128 kbps7V Channel 1 64 kbps, 128 kbpsChannel 2 64 kbps, 128 kbps2A Channel 1 64 kbps2B Channel 1 64 kbpsChannel 2 64 kbps2G Channel 1 128 kbps2H Channel 1 128 kbps2I Channel 1 64 kbps, 128 kbpsChannel 2 64 kbps, 128 kbps2J Channel 1 64 kbps, 128 kbpsChannel 2 64 kbps, 128 kbps
