83
-
5
15
-
0
00
Rev.
B
60
addressed supply and all non
-
addressed supplies, will respond to this command; but only the cu
r-
rently a
d
dressed supply (if any) will respond witht he ‘OK’.
7.10.4
Addressed commands with response
7.10.4.1
Read registers
Send (0x80 + Address) (1 b
yte 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 Regist
er IFEVE/). All registers
will be represented in two Hexbytes. Following the register data, a single dollar sign, $, will be added
to signal the end of data and the start of a checksum. The checksum will be the sum of all register
data and will be represe
nted in two Hex bytes. The transmission will endwith the CR character. If r
e-
petitive sending of SRQs was active and the supply wassending them, the supply will stop sen
d
ing
repetitive SRQs but leave the function active. The contents of the registers will
not be destro
yed. Note
that the supply does
not have to be the active addressed su
p
ply.
Note that this command will not execute if another command is being processed.
7.10.4.2
Print Power On Time
Print the total time the supply has operated under AC pow
er. Send 2 bytes in sequence, A6 Hex and
the address of the supply in binary. A 32 bit integer will be returned in 8 Hex bytes. The data willbe
the number of minutes that power has been ‘ON’ in the supply in binary. A ‘$’ 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 t
he active addressed su
p
ply.
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 f
rom any prev
i
ous 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 su
p
ply.
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
Co
m-
mand.
7.10.4.4
Test if MD Mode is Installed
Send AA Hex followed by the address of the supply inbinary. 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 binaryand new SRQ’s generated by new
events in the Fault Event will beenabled without reading and clearing the Status Event Register. All
events previously recorded in the Fault EventReg ister must havebe
en serviced by the user’s sof
t-
ware prior to this command to take affect.