Mitsubishi FX3U-32DP, User Manual

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64
FX
3U
-32DP PROFIBUS-DP Interface Block
User’s Manual
9 Diagnostics
9.2 Checking Errors
9.2 Checking Errors
The following BFM has read/write access. Check the following BFM status to determine the error cause.
1. General Error [BFM #29 Bit 0]
This bit is set to ON if one or more of BFM#29’s Bit1, 8-13 is ON. The 32DP attempts to send diagnostic data
from BFM#28 and BFM#29 to the DP-Master while suspending normal data exchange when the General
Error bit (BFM#29 Bit0) is ON.
2. PLC in STOP Mode [BFM #29 Bit 1]
This bit is set to ON if the connected PLC is in STOP Mode.
3. Extended-UserAlarm/Diagnostic Data Not Yet Sent Flag[BFM #29 Bit 2]
This bit is set to ON if the Extended-UserAlarm/Diagnostic Data has not yet been sent, or if it has not yet been
acknowledged by the DP-master. This flag functions similar to the "Diagnostics Status Flag" in BFM#25 Bit2.
4. Hardware Error [BFM #29 Bit 3]
This bit is set to ON if an error occurs while initializing the 32DP or if a hardware error occurs during RUN.
While this bit is ON, the 32DP halts communication with the DP-Master and only FROM instructions can
operate for error checking.
5. EEPROM Error [BFM #29 Bit 4]
This bit is set to ON if an error occurs while initializing the 32DP EEPROM or if the slave address data in the
EEPROM becomes corrupt. The EEPROM data may be damaged or destroyed. This bit corresponds
directly with BFM#29 Bit3.
6. Consistency Handling Error Flags [BFM #29 Bit 5]
This bit is set to ON when the 32DP detects an error with data consistency handling. Further information is
provided in BFM#37 for the type of consistency error. Resetting this bit will also reset BFM#37.
→
For details on the Consistency Handling Error Flags BFM#37, refer to Section 6.18
7. Setting Error Flag [BFM #29 Bit 6]
This bit is set to ON if an invalid setting is written to one of the 32DP’s BFM addresses. Further information is
provided in BFM#38 for the type of error. Resetting this bit will also reset BFM#38.
→
For details on the Setting Error Flag BFM#38, refer to Section 6.19
8. Watchdog DP Timeout Flag [BFM #29 Bit 8]
This bit is set to ON if the DP-Watchdog timer expires in the DP-control state. No requests were made to the
DP-Master within the projected watchdog time. Causes may include a faulty PROFIBUS cable connection.
9. Acyclic Communication Error [BFM #29 Bit 9]
This bit is set to ON when an error occurs in (DP-V1) acyclic communication. Further information is provided
in BFM#35 for the type of acyclic communication error. Resetting this bit will also reset BFM#35.
→
For details on the DP-V1 Communication Parameter BFM#35, refer to Section 6.16 [BFM #29 Bit 10]
10.Configuration Error [BFM #29 Bit 10]
This bit is set to ON if invalid configuration data is received from the DP-Master.
11.Parameter Error [BFM #29 Bit 11]
This bit is set to ON if invalid parameter data is received from the DP-Master.
12.Slave Address Change Error [BFM #29 Bit 12]
This bit turns ON if the user sets the 32DP slave address to a value greater than 126 in BFM#27 or if the
slave address is set to greater than 125 when setting via SSA-telegram. This bit automatically resets itself
when the 32DP slave address is set correctly via BFM or SSA.
→
For details on setting the Slave Address BFM#27, refer to Section 6.10
13.Slave "Reset No Address Change" Error [BFM #29 Bit 13]
This bit turns ON when the 32DP detects an error due to resetting the Address Change Impossible Flag
(BFM#25 Bit8) while the slave is in Data Exchange mode, or when the Address Change Impossible Flag
(BFM#25 Bit8) is reset while the write access to BFM#25 Bit8 is disabled.