7 SmartWire-DT
7.4 Errors on the SWD line
Control Relay easy800
11/11 MN04902001Z-EN
www.eaton.com
293
“Incorrect” station: When is this an SWD error?
An “incorrect” SWD station on the SWD line can only be found on startup
since the replacement of an SWD station is not permitted when the device is
switched on. The following therefore distinguishes which cases an
“incorrect” station can occur on an SWD line after startup.
If easy800-SWD determines that an SWD station of the actual configuration
does not match the target configuration, it defines it as an “incorrect”
station. easy800-SWD sets the group alarm I13 to 1. The DIAG diagnostic bit
stays at 0.
The same response also takes place if easy800-SWD finds more stations on
the SWD line than is stored in the target configuration.
With an “incorrect” station easy800-SWD will not start in RUN mode. The
POW LED shows continuous green, Config LED shows continuous green;
SWD LED flashes red.
You may wish to permit the “incorrect” station, because, for example, you
wish to replace a faulty SWD station with a new one. Perhaps you wish to
replace an SWD station with a compatible SWD station or with a universal
module.
In every case, you must press the Config configuration button. This will store
the “incorrect” station in the target configuration. If you then restart the
device, easy800-SWD will not find any difference between the target
configuration and the actual configuration, i.e. no more “incorrect” stations.
However, it will find a difference between the project configuration and
target configuration. The “Replaceable with universal module” and
“Compatible devices permissible” device parameters determine whether
operation can continue despite this difference.
You set the “Replaceable with universal module” device parameter on the
SWD station. You set the “Compatible devices permissible” on the
easy800-SWD.
Universal module is “incorrect” station
If the station is a universal module and the “Replaceable with universal
module” device parameter has been clicked, the SUBST diagnostic bit is set
to 1 and easy800-SWD switches to RUN mode.
If the station is a universal module and the “Replaceable with universal
module” device parameter has not been clicked, the “STOP on SWD error”
device parameter is checked:
•
“STOP on SWD error“ is activated: easy800-SWD stays in STOP mode.
The POW LED shows continuous green, Config LED shows continuous
red; SWD LED shows continuous green.
•
“STOP on SWD error“ is deactivated: easy800-SWD switches to RUN
mode. The POW LED flashes green, Config LED shows continuous red;
SWD LED shows continuous green.
