Keysight 34461A - Command Errors (-100...)

Command Errors (-100…)
-100,"Command error"
-101,"Invalid character"
-102,"Syntax error"
-103,"Invalid separator"
-104,"Data type error"
-105,"GET not allowed"
-108,"Parameter not allowed"
-109,"Missing parameter"
-110,"Command header error"
-111,"Header separator error"
-112,"Program mnemonic too long"
-113,"Undefined header"
-114,"Header suffix out of range"
-120,"Numeric data error"
-121,"Invalid character in number"
-123,"Exponent too large"
-123,"Numeric overflow"
-124,"Too many digits"
-128,"Numeric data not allowed"
-130,"Suffix error"
-131,"Invalid suffix"
-134,"Suffix too long"
-138,"Suffix not allowed"
-140,"Character data error"
-141,"Invalid character data"
-144,"Character data too long"
-148,"Character data not allowed"
-150,"String data error"
-151,"Invalid string data"
-158,"String data not allowed"
SCPI Programming Reference
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Keysight Truevolt Series Operating and Service Guide