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FX0N-32NT-DP Profibus-DP Interface Unit
4.11.5
FROM/TO Watchdog Timer (BFM #29 Bit 7)
If no communication requests (FROM / TO) are received by the 32NT-DP within a 1 second
time period a watch dog timer error occurs and bit 7 is set ON.
If bit 7 is ON, an external diagnosis message will be sent to the DP-master.
Note:
If no FROM / TO instructions are sent to the 32NT-DP an error will be signaled in the DP-
master.
4.11.6
Configuration Error (BFM #29 Bit 10)
When invalid configuration data is received from the DP-master, this bit is ON. When this bit is
ON, please check the data format, number of configuration bytes and data consistency setting
on the DP-master and make appropriate changes.
4.11.7
Parameter Error (BFM #29 Bit 11)
When invalid parameter data is received from the DP-master, this bit is ON. When this bit is
ON, please check parameters on the DP-master.
4.11.8
Slave Address Change Error (BFM #29 Bit 12)
When the new slave value setting for the address of the 32NT-DP is not 0 ~ 126, this bit is ON.
In this case the slave address is not changed. Please try again to set a valid slave address
(BFM #27).
Buffer Memories (BFMs) Allocation 4
4-13
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