Festo CTEU-PB Electronics Description page 93

3. Diagnostics
3.3.3 Details for standard diagnostic information
Station status_1
Bit Significance
0 Diag.Station_Non_Existent
1 Diag.Station_Not_Ready
2 Diag.Cfg_Fault
3 Diag.Ext_Diag
4 Diag.Not_Supported
5 Diag.Invalid_Slave_Response
6 Diag.Prm_Fault
7 Diag.Master_Lock
bold = bus-node-related bits
Tab. 3/8: Diagnostic bits Station status_1
Station status_2
Bit Significance
0 Diag.Prm_Req
Festo P.BE-CTEU-PB-OP+MAINT-EN en 1208NH English
The following diagnostic information can be requested by the
DP master from the bus node system via the function
Slave_Diag. The procedure when reading out this diagnostic
information using the example of a SIMATIC S7 system is de-
scribed in chap. 3.4.1.
Explanation
Bus node is no longer/not yet addressable.
Possible causes:
– Operating voltage not applied
– Data transmission line interrupted
– Malfunction in data transmission line
Bus node is not yet ready for data exchange.
The configuration data received from the master are not
the same as those determined by the bus node.
Extended diagnostics are present (see chap. 3.3.4 and 3.3.5).
Bit = 1: Bus node does not support the function requested
Bit = 0 (set by the bus node)
Last parameter telegram was defective, e.g. incorrect
length or Ident Number
Bit = 0 (set by the bus node)
Explanation
Bit = 1: Master must configure the bus node again
3-13