Description of the NEPO_DIA and TEPO_DIA DFB fault management variables

Fault management public variables

The following table describes the public variables used to configure the DFB action during an error.

Name	Type	Description
SET_ERR	INT	Error selection. This word is used to select the errors which set the ERROR bit to 1. The default value is 16#0FE7.
RST_ORD	INT	Reset orders to 0. Reset orders to zero (ORDER_I and ORDER_O). These errors are stored in STATUS0 until they are acknowledged. They must also be selected in the SET_ERR mask. The default value is 16#0F87.
RST_FB	INT	Error selection. This word is used to select the faults which put the DFB in recalibration mode. These errors are stored in STATUS0 until they are acknowledged. They must also be selected in the SET_ERR mask. The default value is 16#0187.

Selection mask for public variables

The following table gives the selection mask default values for the SET_ERR, RST_ORD and RST_FB. variables

Bit	Meaning	SET_ERR (16#0FE7)	RST_ORD (16#0F87)	RST_FB (16#0187)
0	Command error	X	X	X
1	Unexpected "input" sensor	X	X	X
2	Unexpected "output" sensor	X	X	X
3	Mistimed "input" sensor	-	-	-
4	Mistimed "output" sensor	-	-	-
5	Late "input" sensor	X	-	-
6	Late "output" sensor	X	-	-
7	"Input" sensor disappearance	X	X	X
8	"Output" sensor disappearance	X	X	X
9	Condition of continuous disappearance	X	X	-
10	"Input" safety condition disappearance	X	X	-
11	"Output" safety condition disappearance	X	X	-
12	"Input" request refused	-	-	-
13	"Output" request refused"	-	-	-
14	"Input" sensor that has not reset	-	-	-
15	"Output" sensor that has not reset	-	-	-

NOTE: A bit indicated by a cross means that it is selected and that the corresponding error will not be masked.

The DFB is thus used to execute a movement together with an error and whatever the error may be.

For example, if bit 9, selecting the error; "disappearance of continuous operating conditions", is set to 0, the orders can be activated even if this condition disappears.