Operating Instructions
IS1 PROFIBUS 3.00 E
- Technical alterations reserved -
83
PROFIBUS DP interface for IS1+
Standard diagnosis information in PROFIBUS DP
The first 6 bytes of a diagnosis telegram contain the following information in compliance with the PROFIBUS
standard:
Station status 1 (Byte 0):
Bit
Meaning
Remedy
0
1 = DP slave cannot be accessed by the
DP master.
-
Correct PROFIBUS address set up on the DP slave?
-
Bus connector connected?
-
Voltage on the IS1+ field station and the isolating
repeaters?
-
Field bus isolating repeater correctly set (baud rate.)?
1
1 = DP slave is not yet ready for the data
exchange.
-
Wait as the IS1+ station is just booting.
2
1 = The configuration data of the DP
master was rejected by the IS1+ station.
-
Enter the correct station set-up of the IS1+ station into
the configuration of the DP master.
3
1 =
Diagnosis data of the IS1
station are present.
-
The diagnosis data can be read out.
(global alarm bit of complete field station)
4
1 = Telegram type not supported
-
Slave cannot answer a telegram type used by the
master.
5
1 = DP Master cannot interpret the
response of the slave.
-
Check the bus physics
6
1 = “Set parameters” telegram is rejected
by slave.
-
Check the parameterization of the slave in the master
7
1 = DP slave was parameterized by
another DP master
-
Another master accesses the IS1+ station (see 1.3
Access procedure)
Station status 2 (Byte1):
Bit Meaning
0
1 = DP slave must be newly parameterized by the master.
1
1 = There is a diagnosis message. The slave cannot continue to run if the error has not been remedied
(static diagnosis)
2
Bit is also set to ´1´ if the slave with this DP address is present.
3
1 = Response monitoring of the IS1+ field station is active (Watchdog = On).
The cyclic data traffic is monitored by the slave.
4
1 = The slave has received the “FREEZE” control command.
*1
5
1 = The slave has received the “SYNC” control command.
*1
6
0 = Bit is always set to
“0”.
7
1 = DP slave is deactivated by the master and will not be processed by the master.
*1 Bit is only updated if a further diagnosis also changes.
Station status 3 (Byte2):
Bit 0
– 6:
Reserved
Bit 7:
Ext_Diag_Overflow is set if more channel
diagnoses are present than can be transmitted in the
diagnosis telegram.
Master PROFIBUS address (Byte 3):
PROFIBUS address of the master that parameterized the DP slave
and has read and write access to the DP slave.
Manufacturer ID (Byte 4, 5):
The manufacturer ID is stored in the DP slave as well as in the
related GSE file.
( 0x049A for IS1)
