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198-0853-02 Rev F
B.1.13
State Command “a”:
@AA.a Sync character (@) and unit address, AA = Unit ID (0 to 99; 0 is a global ID), a
= Channel ID (always 0)
a0
Command character and Type
– 0=read, 1=set, 2=activate (n/a), 3=ack, 4=nak
#2,
Number of fields character and number of fields after the comma, excluding
CRC
1,
operate state
– 0=standby, 1=operate, 2 = pause
opr
0,
Simulation state
– 0 = normal operation, 1 = simulation mode
sim
CRC
CRC value in ascii decimal
crlf
Carriage return and Line feed (0x0D 0x0A)
Examples of State Command:
read state from unit 1.
@01.0a0#0,54321
state ack command with delimiter text enabled.
@01.0a3#2,1opr,0sim,54321
state ack command with delimiter text disabled.
@01.0a3#2,1,0,54321
unit 1 go to operate command (goes to operate from a standby or paused state).
@01.0a1#1,1,54321
unit 1 pause command (pauses a timed cycle
– RTC or ATC).
@01.0a1#1,2,54321
Notes:
1. Blank fields are ignored so whatever setting is currently active for that field will still be active after a
command with a blank field.
2. A command type of 1 (set) is only allowed if the power supply is in remote mode as indicated by the
RMT indicator on the front panel (and as indicated by the local/remote field in the
readings “d”
command).
3. The operate and remote switch functionality when in the remote mode will depend on the settings in
the User Settings command.
4.
Set the operate state to ‘pause’ to temporarily stop a cycle and then set the operate state to
‘operate’ to resume the cycle.
5.
Changing the operate state to ‘standby’ will end the current cycle (or clear the EOC state if it was
active). Changing the operate state to ‘operate’ will resume a paused cycle. Changing the operate
state to ‘operate’ will start a new cycle if the current cycle is not running and is not paused.
6. If simulation mode is active the supply output is disabled. In operate mode the read backs are
simulated based on the settings and a simulated load. The simulated load size is computed to
allow maximum supply output. The supply will simulate current and voltage regulation as well as