User Guide

Remote Control User Guide for the MX / MBX / TLX1 / TLX2 Series Chapter 2: Supported Commands
Rev. E, May 5, 2022 Page 5
2.1. Command Return Codes
Return Value Return Explanation
1 Response to a valid command
Values without “Err:”
indicator string
Response to a valid query
Err: Feature not present Issued a command to an instrument that does not have the built-in hardware.
See Figure 6 for command compatibility.
System application firmware < V1.9.5 reports as Err: Hardware missing
Err: Parameter error Issued a command with a parameter value that is outside of the acceptable
range. Refer to the command description for acceptable value ranges.
Err: Illegal parameter value
Issued a command with a parameter value that is outside of the range
supported by this device.
Err: Data out of range Issued a command with a data value that is outside of the acceptable range.
Refer to the command description for acceptable value ranges.
Err: Numeric data error Issued a command with a numeric data value that is outside of the acceptable
range. Refer to the command description for acceptable value ranges.
Err: Data type error Issued a command with the incorrect data type. Refer to the command
description for acceptable data types.
Err: Storage fault An error occurred accessing the internal EEprom. Could not continue to
execute the command.
Err: System error The system encountered an internal error while processing the command.
Could not continue to execute the command.
Err: Execution error An error occurred attempting to execute the given command. Check that unit
is powered on and in run mode.
Err: Undefined header Issued an invalid command or a command with invalid formatting or a
command not recognized by the current system application firmware.
Err: Tunable laser not
selected
Issued a command pertaining to a tunable laser while the fixed wavelength
laser is active. Applies to dual-band instruments only.
Err: Laser is locked Issued a command to access the laser and the laser is locked by the Interlock
mechanism.
Err: This command requires
bootloader >= 1.7.4
Issued a command that is only supported in bootloader code ≥ version 1.7.4.
Figure 7 Return Values and Explanations