System States And Errors; Leds On The Rj45 Sockets - JUMO mTRON T Installation Instructions Manual

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.
Category "S" LED
(Status)
Bus status
Bus status
Bus status
Operation
(Priority 3)
Operation
(Priority 3)
1.6.3

LEDs on the RJ45 sockets

The LEDs indicate the connection status between the router module and the opposite side.
Green LED
Off
On
On
Flickering
Flickering
Meaning
No connection to central processing
unit
System in "Stop" (INIT) state – no
error, only in start phase
System in "Stop" (PREOP) state – no
error, only in start phase
System in "Stop" (SAFEOP) state –
no error
System in "Run" (OP) state – no
error
Orange LED Meaning
Off No connection
Off Connection with 10 Mbit/s
On Connection with 100 Mbit/s
Off Connection with 10 Mbit/s and
data transfer
On Connection with 100 Mbit/s
and data transfer
1 Introduction
Diagnos- Recommended action
tics with
LED Check whether the central pro-
cessing unit is running; check
cabling and topology
LED
LED
LED
LED
Recommended action
Check cabling and topology
17