RsInstrument. Internal. InstrumentErrors. StatusException:'TCPIP::192. 168. 48. 128::INSTR': Instrument error detected: -113,"Undefined header;CALC:MARK:FUNC:FME:STAT ON"

[Essence9999]

Run the following code:
`
from RsInstrument import *

RsInstrument.assert_minimum_version('1.50.0')

instr = RsInstrument('TCPIP::192.168.48.128::INSTR', True, True)
instr.write('FREQ:STAR 150kHz')
instr.write('FREQ:STOP 1GHz')

instr.write('DISP:TRAC1 ON')
instr.write('DISP:TRAC2 ON')
instr.write('DET1 POS')
instr.write('DET2 AVER')

instr.write('CALC:MARK:FUNC:FME:STAT ON')

instr.write('BAND:TYPE CISP')
instr.write('BAND:RES 1MHz')

instr.write('CALC:MARK:FUNC:FME:DWEL 1ms')

instr.write('CALC:MARK:FUNC:FME:PEAK:AUTO ON')

instr.write('DISP:TRAC:X:SPAC LOG')

instr.write('CALC:MARK:FUNC:DEM ON')

instr.write('SWE:POIN 200000')

instr.write('CALC:UNIT:POW V')

for i in range(1, 7):
instr.write(f'CALC:MARK{i} ON')

for i in range(1, 4):
instr.write(f'CALC:MARK{i}:TRAC 1')
for i in range(4, 7):
instr.write(f'CALC:MARK{i}:TRAC 2')

for i in range(1, 7):
instr.write(f'CALC:MARK{i}:FUNC:FME:DET CAV')

instr.write('CALC:LIM1:NAME "EN55011A.LIN"')

instr.write('CALC:LIM1:TRAC1:CHEC ON')

instr.write('CALC:LIM:CLE')

instr.write('INIT:CONT OFF')

instr.write('INIT;*WAI')

for i in range(1, 7):
freq = instr.query(f'CALC:MARK{i}:X?')
level = instr.query(f'CALC:MARK{i}:FUNC:FME:RES?')
print(f'Mark {i} Frequency: {freq}, Level: {level}')

lim1_fail = instr.query('CALC:LIM1:FAIL?')
print(f'Limit 1 Fail: {lim1_fail}')

for i in range(1, 7):
cond = instr.query(f'CALC:MARK{i}:FUNC:FME:LIM:COND?')
delt = instr.query(f'CALC:MARK{i}:FUNC:FME:LIM:DELT?')
print(f'Mark {i} Limit Condition: {cond}, Delta: {delt}')

instr.close()
`

The following error message is :
RsInstrument. Internal. InstrumentErrors. StatusException:'TCPIP::192. 168. 48. 128::INSTR': Instrument error detected: -113,"Undefined header;CALC:MARK:FUNC:FME:STAT ON"

[Miloslav-RS]

Hi Essence9999, sorry for the delay. Is this issue still active? I see you are using the ESW8. My guess is - the instrument is in a mode where it does not know thie command CALC:MARK:FUNC:FME:STAT ON. I suggest you to check your sequence. Was it working before on another instrument or another SCPI-communcator?