Table 11-6
Interrupt type (bytes x+1 in the interrupt section)
Byte x+1
Interrupt type
Byte x+1
Interrupt type
00
H
Reserved
05
H
Status interrupt
*
01
H
Diagnostic interrupt
06
H
Update interrupt
*
02
H
Process interrupt
*
07
H
to 1F
H
Reserved
03
H
Pull interrupt
20
H
to 7E
H
Manufacturer-specific interrupt
*
04
H
Plug interrupt
7F
H
Reserved
*
These interrupt types do not occur for FF devices.
Additional interrupt information for diagnostic interrupt
For FF devices, the interrupt-specific information most be generated by Compact FF Link; in
the additional interrupt data, the beginning of the ID is always 0xFF (in byte x+4) and a
diagnostic cause is always entered (in byte x+5).
When the redundant bus link is used, the active Compact FF Link reports the event for the
passive Compact FF Link as well.
The Compact FF Link reports the following diagnostic interrupts:
● For the Compact FF Link (slot 1 and 2):
– 0x02 = Configuration error (e.g. DP-side configuration and retentive FF-side
configuration present in Compact FF Link do not match)
– 0x04 = External error, PROFIBUS address differs from the one used at startup; the
redundant Compact FF Link has a different PROFIBUS address, short circuit or wire
break on the FF
– 0x08 = loss of ring redundancy (open ring, e.g. caused by a short circuit, cable break
between 2 active field distributors, or failure of a single active field distributor)
● For the FF devices (slots 4-34):
– 0x02 = incorrect assignment of the "Physical Device Tag" (name) to the configured FF
device (address)
Additional interrupt information for pull/plug interrupts
When an FF device on the lower-level FF bus fails or is restored, the Compact FF Link FF
triggers a pull or plug interrupt on the higher-level DP master system.
The FF address of the mapped FF device is entered in the additional interrupt information (in
byte x+4); in Compact FF Link the value "0" is entered (in byte x+4).
FF devices (
slots 4-34)
The pull interrupt for FF devices is generated if:
● After the startup delay for Compact FF Link, a configured FF device is not found on the FF
bus
● An FF device is no longer recognized in operation
The plug interrupt for FF devices is generated if:
● A configured FF device is newly detected in operation based on its address.
Alarm, error, and system messages
11.3 Interrupts
Compact FF Link
74
Operating Instructions, 03/2015, A5E35651552-AA