The operation state register's bit meanings are:
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
The demand state register's bit meanings are:
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
0x60 Enter instrument calibration state
Byte
offset
Meaning
3 Calibration state:
0 means disable
1 means enable
4 0x85 (low byte of calibration password)
5 0x11 or 0x12 (high byte of calibration password)
6-24 Reserved
0x61 Get the instrument calibration state
8500 DC Load Series Version: February 4, 2009 Page 67 of 76
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