Siemens SIMATIC EMS400S PSB-S Operating Instructions Manual page 31

LED
ERR RAIL 2
ERR RAIL 3
1
The following information relates to an EMS carrier that is currently at a plant segment
transition.
Note
If an EMS carrier bridges two plant segments, the following applies:
• The ERR RAIL LEDs on the PSB-S module light up when the EMS carriers on the
• When the PSB-S modules send inconsistent data during the bridging of the RAIL, the
The ERR RAIL LEDs remain active as long the EMS carrier dwells on the plant segment
transition. No entry is made in the diagnostic buffer.
PSB modules
Operating Instructions, 03/2014, A5E03474166-03
Status
On
1
Flashing
Off
On
1
Flashing
Off
LED ERR RAIL is lit for at least 1 s.
bridged plant segment transmit inconsistent data.
ERR RAIL LED is activated on the PSB-C module.
Meaning
At least one error in the plant segment n + 1
•
No data transmission from the EMS carrier to the plant segment
•
controller via RAIL 2
Error in data transmission from the EMS carrier to the plant segment
•
controller
During transition of an EMS carrier from the previous to the current
•
plant segment
During transition of an EMS carrier to the next plant segment
•
The CPU of the plant segment controller is in STOP state
•
No error in plant segment n + 1
At least one error in the plant segment n + 2, or a firmware update is
•
in progress
No data transmission from the EMS carrier to the plant segment
•
controller via RAIL 3
Error in data transmission from the EMS carrier to the plant segment
•
controller
During transition of an EMS carrier from the previous to the current
•
plant segment
During transition of an EMS carrier to the next plant segment
•
Applies to firmware update:
•
The LED is off prior to the update. The LED starts flashing during the
update and remains lit until the update has been completed
The CPU of the plant segment controller is in STOP state
•
A firmware update is busy
•
No error in plant segment n + 2
Displays and address ranges
5.2 Plant segment controller
31