JUMO 705040 mTRON T - Router Module Installation Instructions - Manual (Page 15)

15
1 Introduction
1.6.2 System states and errors
The following table lists all the system states and errors that are indicated by the "S" LED (Sta-
tus). In most cases, further diagnostics must be performed with the setup program.
1.6.3 LEDs on the RJ45 sockets
The LEDs indicate the connection status between the router module and the opposite side.
Category "S" LED
(Status) Meaning Diagnos-
tics with Recommended action
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 3)
System in "Stop" (SAFEOP) state –
no error LED
Operation
(Priority 3)
System in "Run" (OP) state – no
error LED
Green LED Orange LED Meaning Recommended action
Off Off No connection Check cabling and topology
On Off Connection with 10 Mbit/s
On On Connection with 100 Mbit/s
Flickering Off Connection with 10 Mbit/s and
data transfer
Flickering On Connection with 100 Mbit/s
and data transfer