
UM EN AXL F SYS DIAG
12
PHOENIX CONTACT
8663_en_03
1.3
Diagnostic registers of the local bus master
The errors reported to the local master by the I/O modules are mapped in the diagnostic reg-
isters of the local master.
A local bus master has three diagnostic registers:
–
Diagnostic status register:
Operating and error states of the Axioline F local bus
–
Diagnostic parameter register 1:
Returns the associated error code in the event of an error
–
Diagnostic parameter register 2:
Returns the error location for local bus or I/O errors (device number)
1.3.1
Diagnostic status register
Information on the operating state of the Axioline F local bus is stored in the diagnostic sta-
tus register. Each bit in the diagnostic status register is assigned to a state of the Axioline F
local bus.
The states in the error bits (F_PW_BIT, F_PF_BIT, F_BUS_BIT, F_CTRL_BIT) are de-
scribed in greater detail using the two diagnostic parameter registers.
Table 1-3
Diagnostic status register
Bit
Designation
Meaning
00
F_PW_BIT
I/O warning
At least one device indicates an I/O warning.
01
F_PF_BIT
I/O error
At least one device indicates an I/O error.
02
F_BUS_BIT
Bus error
A bus error occurred.
03
F_CTRL_BIT
Controller error
The driver detected an internal error.
04
-
Reserved
05
F_RUN_BIT
Run
Data cycles are being exchanged, output data is enabled.
06
F_ACTIVE_BIT
Active
Configuration is active, PDI to the devices is possible, data exchange
with invalid/non-enabled process data.
07
F_READY_BIT
Ready
The local bus master is ready for operation, no data exchange over
the bus.
08
F_BD_BIT
Bus different
A device which does not belong to the current configuration has been
detected at the last interface.
09
F_BASP_BIT
SYS_FAIL
The controller is in the STOP state or no application program has
been loaded. Output data is blocked (substitute value behavior is ac-
tive)
10
F_FORCE_BIT
Force mode
Force mode (startup tool/I/O check) is active.
11
F_SYNC_BIT
Synchronization
Synchronization between higher-level system and local bus master
has failed.
12
F_PARA_REQ
Module parameter
At least one device is requesting parameters.
13 …15
-
Reserved