The Internet of Things (IIoT) offers unprecedented possibilities for industries. Stay ahead with EcoStruxure™ Plant and Machine.Learn more
...with the EcoStruxure™ Facility Expert (formerly known as Facility Hero) app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
The story behind the Shedd Aquarium, a smart, sustainable facility that connects people to animals, with EcoStruxure™.Discover how
Welcome to the Schneider Electric Global Website×
Goals and Symptoms
Communications will drop out for devices on the serial port of an ECC card housed in a CM3/4 and come back on the next health check, data upload, or with a communication test (i.e. there is no loss of data). The error with the communication loss is 513 which is defined as"negative acknowledgement"
Causes and Fixes
This is is generally a wiring issue where someone will have to "ring out" or check the wiring on the daisy chain for continuity; however the problem may be solved by cycling power to the ECC21. An easy way to cycle power to the ECC21 is to do a soft reset to the meter.
Perform a soft rest on the meter by enabling an unused data log on the CM3/4. Whenever a change is made to a data log the CM4 reset itself which, in turn, reboots the ECC card. After the initial soft reset, the unused data log can be un-enabled to return the data log to its original state (this will cause another soft reset).
Alternately, a soft reset can be initiated by writing 1110 to register 8000.
NOTE: Since making any changes to a data log clears the data in all of the logs for that meter; do an "execute now" on any tasks that get data from the data logs in the meter before making the changes to the unused data log.
Sign up for all the latest solutions, offers and best practices straight to your inbox.
We are excited that you have joined the group. You will receive your welcome email soon describing the program and what to expect in the upcoming weeks. Enjoy!