Description of the DFB NEPO_DIA and TEPO

Public variables reliability indicators

The following table describes the public variables used as reliability indicators.

Name	Type	Description
N_REQ	INT	Storing the number of requests accepted by the DFB. This word takes value 0 when RESET_CT is set to state 1 or in the event of counter overrun (when limit value 32767 is reached). The counter overrun N_REQ sets both it and the N_ERROR counter back to zero The default value is 0.
N_ERROR	INT	Storing the number of errors detected by the DFB. This word takes value 0 when RESET_CT is set to state 1 or in the event of counter overrun (when limit value 32767 is reached). The counter overrun N_ERROR sets both it , and counter N_REQ back to zero. The default value is 0.

Cycle reset public variables

The following table outlines the public variables used for the cycle reset.

Name	Type	Description
OUTCTRL	EBOOL	Authorization to send orders. After a default selected in RST_FB, this data is used to authorize the DFB to send orders without monitoring the sensors, in order to set the operative section in a checked recalibration position. The SECU_I, SECU_O and SECUPERM inputs must be valid. This variable can be modified by the program, its default value is 0.
ORIGIN	EBOOL	Awaiting source position. This bit indicates that the automatic operation is awaiting the "source position" state (equivalent to RESEQ_I but priority). This variable can be modified by the program, its default value is 0.
RESEQ_I, RESEQ_O	EBOOL	Awaiting state. These 2 bits signal that the automatic operation is awaiting either the "re-input" state or "output" state respectively. This variable can be modified by the program, its default value is 0.

Position monitoring public variables

The following table describes the public variables used for position monitoring.

Name	Type	Description
NOSENS_I NOSENS_O	EBOOL	Position monitoring. These bits give the reverse position of the sensors twisted on the respective inputs SENSOR_I and SENSOR_O. These bits are only used if the DFB is configured to monitor the positions with the help of this data (constant internal NBSENS_I and/or NBSENS_O = 2).

State public variables

The following table outlines the public variables used as status indicators.

Name	Type	Description
ADJ_TIME	EBOOL	Reference time acquisition. This bit signals that the reference times of the movements have been acquired (training mode). The default value is 0.
MVT_I, MVT_O	EBOOL	Transient state of a movement. These 2 bits signal the transient state of a MVT_O movement "re-input" or "output" engaged and not completed (not reached determined position). The default value is 0.
EXPECTED	EBOOL	Awaiting state. This bit signals that the DFB is waiting for an end of movement sensor to appear (the movement has been engaged for more than RMIN_I or RMIN_O or has been interrupted). The default value is 0.

Operating mode public variables

The following table describes the public variables used for configuring the DFB on cycle resumption.

Name	Type	Description
ORD_MNT	EBOOL	Error selection. If this bit is at state 1, the orders are re-activated following the disappearance of the indication in STATUS0, or following faults which have reset the orders to 0. The default value is 0.
NEW_REQ	EBOOL	Reset orders to 0. If this bit is at state 1, new requests are required after the fault detection that has put the DFB in recalibration mode (i.e. detection of a fault selected in RST_FB). The default value is 1.