BK Precision 8500 interface library
| Byte0 | Byte1 | Byte2 | Byte3-24 | Byte25 |
|---|---|---|---|---|
| 0xAA | Address | Command | Data | CRC |
If a CMD packet responds without a 0x12 status, usually when data is being returned, the command ID should be in the Byte3 positions.
| Byte0 | Byte1 | Byte2 | Byte3 | Byte4-24 | Byte25 |
|---|---|---|---|---|---|
| 0xAA | Address | 0x12 | Status | Reserved | CRC |
''' Python self.resp_status_dict = { 0x90: "ERROR: Invalid checksum", 0xA0: "ERROR: Invalid value", 0xB0: "ERROR: Unable to execute", 0xC0: "ERROR: invalid command", 0x80: True, } '''
Bit Meaning 0 Calculate the new demarcation coefficient 1 Waiting for a trigger signal 2 Remote control state (1 means enabled) 3 Output state (1 means ON) 4 Local key state (0 means not enabled, 1 means enabled) 5 Remote sensing mode (1 means enabled) 6 LOAD ON timer is enabled 7 Reserved
Bit Meaning 0 Reversed voltage is at instrument's terminals (1 means yes) 1 Over voltage (1 means yes) 2 Over current (1 means yes) 3 Over power (1 means yes) 4 Over temperature (1 means yes) 5 Not connect remote terminal 6 Constant current 7 Constant voltage 8 Constant power 9 Constant resistance
Symbol Response Formats Boolean value, can be 1 or “ON”, 0 or “OFF” Integer value, can be zero, positive or negative integer number Flexible numerical value, can be zero, positive or negative float point numeric value String value, characters enclosed in single or double qNueowtelisne, hex code 0x0Ah Return, hex code 0x0Dh