Eaton D77A Installation And User Manual

Contents

Intelligent Technologies (IT.) D77A I/O Module ProductsMN05002001E For more information visit: www.EatonElectrical.com 47Table 31: Status LEDCommunication HintsTable 32: Communication HintsStatus LED Description ExplanationMostly Off Offline Everything is OK with in the I/O Module and the I/O Module is not being scanned.Check that the Network Adapter is commanded to scan QCPort. This is generally done by setting bit 0 of byte0, for channel A, in the output assembly.Mostly On Online Everything is OK with in the I/O Module and the I/O Module is being scanned.50% Faulted Internal memory fault (cycle power).Verify that there are not any duplicate Group ID’s (address). Check that the address is unique for the QCPortsystem.The Group ID was changed and a reset is required.Buss fault. All the devices on the QCPort will have the same status LED behavior. A buss fault is caused by anopen or QCPort shorted buss.Rapid Flash Unacquired The I/O Module has not been discovered/acquired by the Network Adapter, verify that the node ID is setcorrectly for the system.The Network Adapter has not auto configured the QCPort system. In this case all the I/O Module’s will havethe same behavior of the status LED. Perform an auto configuration.CH Studio is identifying that device. When the device is highlighted in CH Studio this is a way to identify inthe field which device is being highlighted. Remove the highlight from CH Studio and verify that the RapidFlash disappears.Solid On It is possible the I/O Module is in firmware download mode, cycle power to exit that mode. If the LED stayssolid On after the power cycle, it is possible that the I/O Module has in internal failure and will need to bereplaced.Off No Power The I/O Module is not powered or a memory fault in NV RAM has occurred that will require the I/O Module tobe replaced.Problem SolutionAre all the QCPort devicesconnected to one NetworkGateway are notcommunicating? Are all theStatus LED’s either RapidFlash or 50% OnCheck the Network Adapter, is the ST LED Green? – If the LED is green, then perform an auto configuration ofthe Network Adapter and see if the problem goes away.There may be a damaged I/O Module or a shorted QCPort communication wire that is prohibiting QCPortcommunications. Remove all the I/O Modules from the QCPort system.Unplug the Network Adapter from the industrial network.Cycle power to the Network Adapter.One by one plug the I/O Modules back in and verify that the status LED is mostly off as they are plugged back in.When the I/O Module the causes the system to fail is plugged in, the I/O Module’s status LED will rapid flash or50% flash only.Remove the I/O Module and check the QCPort connections for shorted or damaged wires or connections.When all the I/O Modules are online, plug the Network Adapter into the industrial Network.It is possible that the terminating resistors are damaged, replace the terminating resistors.Is there a single I/O Modulein the system that is notcommunicating?The problem may be that the I/O Module has a fixable internal communication failure. Perform a reset bytoggling the rotary switch from 0 to 1 five times, reset the rotary switch to the correct group ID (address).It is also possible the Group ID rotary switch was changed after auto configuration. Check the rotary switch andverify that they are in the correct position for that address. Physically move the rotary switch from one positionto another to verify that it is in the correct position (there will be a “snap” when it reaches the next state).Unplug and replug the device and check that the problem disappears.It is possible that the communication connections are damaged or unplugged.It is possible that the terminating resistors are damaged, replace the terminating resistors.During auto configurationthe Network Adapter will notdetect any of the I/OModules.Check the status LEDs on the I/O Module units, if the LEDs are rapid flashing or 50% On refer to the aboveproblem for a solution.If the status LEDs on the I/O Module units are all slow flashing, the Network Adapter has already connected tothe I/O Module units and the problem is that the CH Studio software is not displaying the I/O Module units. Thiscan be because the scanner is not allowing CH Studio to send long messages.The Network Adapter cannot perform an auto configuration if the system controller is scanning the NetworkAdapter. Disconnect the Network Adapter from the industrial network and reattempt the auto configuration.