TDK 750W HALF RACK technical manual Status Enable Register, Status Event Register

3. Status Enable Register

The Status Enable Register is set by the user to Enable SRQs for changes in power supply status.

Table 7-12: Status Enable Register

BIT	Status name	Status	Bit Set condition	Bit reset condition
		symbol
0 (LSB)	Constant Voltage	CV	User command:	User command: “SENA
				nn” is received, where nn
1	Constant Current	CC	“SENA nn” is
				is hexadecimal bits.
			received, where	If “nn”=00, no SRQ is sent
2	No Fault	NFLT
			nn is hexadeci-
				when there is a change in
			mal bits.
3		FLT
	Fault active			Status Condition Register.
4	Auto-Restart enabled	AST	Always zero	Always zero
5	Fold enabled	FDE	Always zero	Always zero
6	Spare	Spare	Always zero	Always zero
7 (MSB)	Local Mode	LCL	“SENA nn”	“SENA nn”
			command	command

4. Status Event Register

The Status Event Register will set a bit if a change in the power supply status occurs and it is en- abled. The register is cleared when the “SEVE?” or “CLS” commands are received. A change in this register will generate SRQ.

Table 7-13: Status Event Register

BIT	Status name	Status sym-	Bit Set condition	Bit reset condition
		bol
0 (LSB)	Constant Voltage	CV	Changes in status
			occur and it is
			Enabled.
1	Constant Current	CC	The change can
			set a bit, but
2	No Fault	NFLT
			when the change	Entire Event Register is
			clears the bit re-
3	Fault active	FLT		cleared when user sends
			mains set.
				“SEVE?” command to
	Auto-Restart en-
4		0	Always zero	read the register.
	abled
				“CLS” and power-up also
5		0	Always zero
	Fold enabled			clear the Status Event
				Register.
6	Spare	0	Always zero
			Unit is set to Lo-
7 (MSB)	Local Mode	LCL	cal by pressing
			front panel
			REM/LOC button.

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83-507-5002 Rev. B