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PRODUCT DETAIL
1769-L27ERM-QBFC1B Allen-Bradley CompactLogix 5370 Controllers, Revision 21
Product information:
Brand:Allen-Bradley Model number:1769-L27ERM-QBFC1B
Condition:new Warranty: 12 month
Lead Time:3-day working da Country of origin: United States
Price: Please contact us Product weight:0.835kg
HS: 8517623990
Product technial information:
Cat. No. | Description |
1769-L30ER, 1769-L30ERM, 1769-L30ER-NSE, 1769-L33ER, 1769-L33ERM, 1769-L36ERM | CORRECTED: A combination of two application conditions may cause the System Task that manages the local CompactBus to stop functioning, resulting in a number of unexpected control system behaviors. The first application condition includes any of the following: • Your controller is sending MSG instructions to modules on the local CompactBus. • Your controller is sending MSG instructions across the CompactBus and through a network communication module to remote modules, for example, through a local 1769-SDN module to I/O modules on a DeviceNet network or a 1769-SM1 module to modules on a DPI/SCANport network. • Your controller is online with or browsing a DeviceNet network via a 1769-SDN scanner module via a controller connection, that is, through an EtherNet/IP communication module or USB cable. • Your controller’s project includes the maximum number of local expansion modules with each module’s RPI configured for a very fast rate. The second application condition is that you change the RPI rate for one or more Compact I/O modules in the control system via a project download or online change. When the anomaly occurs, the following events occur: • The Continuous Task no longer executes. • All User tasks, that is, Periodic and Event Tasks, configured at priority 6 and lower no longer execute. • All communication coming to the controller and going out from the controller stops. • I/O processing on the local CompactBus stops. In this case, outputs operate in their commanded state. • I/O connections over an EtherNet/IP network will continue to operate. However, the connections may no longer update, depending on where they are controlled in the application code. For example, if the I/O connections over an EtherNet/IP network are controlled via the Continuous Task, they no longer update. You can correct this anomaly by cycling power to the controller. 00129742 |
1769-L30ER, 1769-L30ERM, 1769-L30ER-NSE, 1769-L33ER, 1769-L33ERM, 1769-L36ERM | CORRECTED: If a single module on the CompactBus experiences a fault or connection loss, all bits in the Fault word transition to 1. The Fault word bits for only the faulted module should transition to 1 and the Fault word bits for the other modules on the CompactBus remain 0. However, the Fault word bits for all modules transition to 1. Despite the Fault word bit transition to 1, the other modules on the CompactBus should be operating as expected. The controller incorrectly reports that the unaffected modules have experienced a fault. You must cycle power to the controller for the bits to return to the correct status, that is, 0, when all modules are in the running state. 00126024 |
If the controller project includes modules with large I/O sizes, for example, ProSoft or 1769-SDN DeviceNet scanner modules, the initial project download executes as expected. Subsequent project downloads to the controller fail and the Logix Designer application goes offline. 00135974 |
Delivery information:
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Transport: In Stock Ready for Shipment via DHL, TNT, FEDEX, UPS, ARAMEX and etc
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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Contact information:
Contact person:Luna Chen
Email Address::sales6@saulplc.com
WhatApp: +86 13358378970
We look forward to your inquiry and will get back to you as soon as possible.
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