addressed supply and all non-addressed supplies, will respond to this command; but only the cur- rently addressed supply (if any) will respond with the ‘OK’.

7.10.4 Addressed commands with response

7.10.4.1 Read registers

Send (0x80 + Address) (1 byte binary - send 2 times sequentially). The supply will return the contents of the Status Condition Register, the Status Enable Register, the Status Event Register (SEVE?), the Fault Condition Register, the Fault Enable Register and the Fault Event Register IFEVE/). All registers will be represented in two Hex bytes. Following the register data, a single dollar sign, $, will be added to signal the end of data and the start of a checksum. The checksum will be the sum of all register data and will be represented in two Hex bytes. The transmission will end with the CR character. If re- petitive sending of SRQs was active and the supply was sending them, the supply will stop sending repetitive SRQs but leave the function active. The contents of the registers will not be destroyed. Note that the supply does not have to be the active addressed supply.

Note that this command will not execute if another command is being processed.

7.10.4.2 Print Power On Time

Print the total time the supply has operated under AC power. Send 2 bytes in sequence, A6 Hex and the address of the supply in binary. A 32 bit integer will be returned in 8 Hex bytes. The data will be the number of minutes that power has been ‘ON’ in the supply in binary. A ‘$’ sign and 2 byte Hex checksum will be appended to the data. There is no method provided to reset this number. Retransmit last message.

Send (0xC0 + Address) (1 byte binary - send 2 times sequentially). The supply will return the last message sent. Note that the supply does not have to be the active addressed supply.

This command will not execute if another command is being processed.

Note that Single byte commands do not load data into the supply’s data output buffer.

Thus this command will not cause the supply to retransmit data obtained from any previous Single Byte Command.

7.10.4.3 Retransmit Last Message

Send (0xC0 + Address) (1 byte binary - send 2 times sequentially). The supply will return the last message sent. Note that the supply does not have to be the active addressed supply.

This command will not execute if another command is being processed.

Note that Single byte commands do not load data into the supply’s data output buffer. Thus this command will not cause the supply to retransmit data obtained from any previous Single Byte Com- mand.

7.10.4.4 Test if MD Mode is Installed

Send AA Hex followed by the address of the supply in binary. If not installed, the supply will return a ‘1’. If installed, the supply will return a ‘0’.

7.10.5 Addressed commands without response

7.10.5.1 Acknowledge SRQ

Send (0xE0 + Address) (1 byte binary - send 2 times sequentially). The supply will stop re-sending SRQ. If Enable SRQ retransmission is active, it will remain active.

7.10.5.2 Re-enable SRQ with out reading/clearing the SEVE Register

Send A5 Hex followed by the address of the supply in binary and new SRQ’s generated by new events in the Fault Event will be enabled without reading and clearing the Status Event Register. All events previously recorded in the Fault Event Register must have been serviced by the user’s soft- ware prior to this command to take affect.

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TDK 5KW technical manual Addressed commands with response Read registers, Print Power On Time, Retransmit Last Message

5KW specifications

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