Commands - Huawei PAC2000S12-B1 PSU Technical Manual

PAC2000S12-B1 PSU
● Y is the 11-bit, binary signed mantissa (two's complement).
● N is the 5-bit, binary signed exponent (two's complement).
Linear 16 Data Format
The linear data format consists of two parts, with a 16-bit binary unsigned mantissa and a 5-bit
binary signed exponent (two's complement), as shown in the following figure.
Figure 10-4 Linear 16 data format
The output voltage is calculated as follows:
Where:
● Voltage is the output voltage value.
● V is the 16-bit unsigned integer.
● N is the 5-bit signed integer (two's complement). N = –12

10.4.2 Commands

Hex Code Command Name
0x01 PMBUS_CMD_OPERATION
0x03 PMBUS_CMD_CLEAR_FAULTS
0x20 PMBUS_CMD_VOUT_MODE
0x21 PMBUS_CMD_VOUT_CTRL
0x31 PMBUS_CMD_RATED_POUT
0x3A PMBUS_CMD_FAN_CONFIG
0x3B PMBUS_CMD_FAN_COMMAND
0x78 PMBUS_CMD_STATUS_BYTE
0x79 PMBUS_CMD_STATUS_WORD
0x7A PMBUS_CMD_STATUS_VOUT
Technical Manual
Read/Write
Read/Write BYTE
Write BYTE
Read BYTE
Read/Write WORD
Read WORD
Read/Write BYTE
Read/Write WORD
Read/Write BYTE
Read/Write WORD
Read/Write BYTE
49
10 Communication
Data Format
HEX
HEX
HEX
LINEAR 16
LINEAR 11
HEX
HEX
HEX
HEX
HEX