JUMO 705003, Operating Manual, Page: 107 / 112

107
7 Annex
System states and errors
The following table lists all the system states and errors that are indicated by the "S" LED (module-de-
pendent).
The web application (service) and the setup program (hardware configuration) must be used for further
diagnosis and, if necessary, measures.
Category "S" LED
(Status) Meaning Diagnos-
tics with Recommended action
Start error Module error (hardware does not
start up) LED Replace module
Start error Internal error (bootloader)
Various errors during startup (e.g. no
memory, initialization error)
LED Replace module
Start error No firmware LED Replace module
Start error Incorrect optional board 1, 2, 3
(actual/target) LED Check optional board and
replace, load, or remove as
required; replace module if
necessary
Bus status No connection to central processing
unit LED Check whether the central pro-
cessing unit is running; check
cabling and topology
Bus status System in "Stop" (INIT) state – no
error, only in start phase LED
Bus status System in "Stop" (PREOP) state – no
error, only in start phase LED
Operation
(Priority 1)
Module not calibrated (LED flashes
red-green) or
module in calibration mode (cali-
brate/test; LED flickers red-green) LED/setup
program
Operation
(Priority 2)
Collective alarm (incl. out of range) LED/setup
program
Operation
(Priority 3)
System in "Stop" (SAFEOP) state –
no error LED
Operation
(Priority 3)
System in "Run" (OP) state – no
error LED