THORLABS ITC502 Operation Manual page 69

[DCL] Device Clear
The command [DCL] will clear the input buffer and output queue. It will also reset the
parser unit and the execution unit
The command [DCL] will set back all units connected to the IEEE488 bus.
[SDC]
Selected Device Clear
The command [SDC] will clear the input buffer and output queue. It will also reset the
parser unit and the execution unit
In contrast to the command [DCL] the command [SDC] will only set back
NOTE
NOTE
the device addressed.
3.1 IEEE488 Interface
ITC500 / page 61