UM EN AXL F SYS DIAG
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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
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