Error Messages 5
Keysight 34970A/34972A User’s Guide 239
221 Settings conflict: calculate limit state forced off 
If you plan to use scaling on a channel which will also use alarms, be sure to 
configure the scaling values first. This error is generated if you attempt to assign 
the alarm limits first and the instrument will turn off alarms and clear the limit 
values. 
222 Settings conflict: module type does not match stored state
Before recalling a stored state, the instrument verifies that the same module 
types are installed in each slot. The instrument has detected a different module 
type in one or more slots. 
223 Settings conflict: trig source changed to IMM
This error is generated if you attempt to set the channel advance source 
(ROUTe:CHAN:ADVance:SOURce command) to the same source used for the 
scan trigger (TRIGger:SOURce command). The command has been accepted 
and executed but the scan trigger source is reset to “IMMediate”.
224 Settings conflict: chan ad v source changed to IMM
This error is generated if you attempt to set the scan trigger source 
(TRIGger:SOURce command) to the same source used for the channel advance 
source (ROUTe:CHAN:ADVance:SOURce command). The command has been 
accepted and executed but the channel advance source is reset to “IMMediate”.
225 Settings conflict: DMM disabled or missing 
This command is valid only when the internal DMM is installed and enabled. Use 
the INSTrument:DMM? command to determine the state of the internal DMM. 
For more information, see “Internal DMM Disable” on page 175. 
226 Settings conflict: DMM enabled
When the internal DMM is enabled, the ROUTe:CHAN:ADVance:SOURce and 
ROUTe:CHAN:FWIRe commands are not allowed. Use the INSTrument:DMM? 
command to determine the state of the internal DMM. For more information, see 
“Internal DMM Disable” on page 175. 
251 Unsupported temperature transducer type
An invalid RTD or thermistor type has been specified. The following RTDs are 
supported: α = 0.00385 (“85”) and α = 0.00391 (“91”). The following thermistors 
are supported: 2.2 kΩ (“2252”), 5 kΩ (“5000”), and 10 kΩ (“10000”). 
Example: CONF:TEMP RTD,1,(@101)