example programs. The Summary of commands section is a list of the commands, but without
details. The Command details section explains how to use each command.
Summary of commands
The Byte values in the following table are used to identify the commands to be sent in the command
packet (byte 2).
Command Group Byte Action
Return data 0x12
Indicates a packet that returns the status of the last command you
sent to the DC Load
Remote 0x20 Set the DC Load to remote operation
ON/OFF 0x21 Turn the load ON or OFF
Maximum parameter
values
0x22 Set the maximum voltage allowed
0x23 Read the maximum voltage allowed
0x24 Set the maximum current allowed
0x25 Read the maximum current allowed
0x26 Set the maximum power allowed
0x27 Read the maximum power allowed
Operation mode
0x28 Set CC, CV, CW, or CR mode
0x29 Read the mode being used (CC, CV, CW, or CR)
Mode parameters
0x2A Set CC mode current
0x2B Read CC mode current
0x2C Set CV mode voltage
0x2D Read CV mode voltage
0x2E Set CW mode power
0x2F Read CW mode power
0x30 Set CR mode resistance
0x31 Read CR mode resistance
Transient
parameters
0x32 Set CC mode transient current and timing
0x33 Read CC mode transient parameters
0x34 Set CV mode transient voltage and timing
0x35 Read CV mode transient parameters
0x36 Set CW mode transient power and timing
0x37 Read CW mode transient parameters
0x38 Set CR mode transient resistance and timing
0x39 Read CR mode transient parameters
List operations
0x3A Select the list operation (CC/CV/CW/CR)
0x3B Read the list operation (CC/CV/CW/CR)
8500 DC Load Series Version: February 4, 2009 Page 49 of 76