Standard features, Car2912te series front-end, Preliminary data sheet – GE Industrial Solutions CAR2912TE series User Manual
Page 11: Pmbus, Command set
GE
Preliminary Data Sheet
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 11
Block write format:
1
7
1
1
8
1
S
Slave address
Wr
A
Command Code
A
8
1
8
1
8
1
Byte count = N A Data 1 A Data 2 A
8
1
8
1
8
1
1
……….
A
Data 48
A
PEC
A
P
Block read format:
1
7
1
1
8
1
S
Slave address
Wr
A
Command Code
A
1
7
1
1
Sr
Slave Address
Rd A
8
1
8
1
8
1
Byte count = N A Data 1 A Data 2 A
8
1
8
1
8
1
1
……….
A Data 48 A
PEC
NoAck P
Direct mode data format:
The Direct Mode data format is
supported, where y = [ mX + b ] x 10
R
. In the equation, y is the
data value from the controller and x is the ‘real’ value either
being set or returned.
For example, to set the output voltage to TBDV
DC
, Multiply the
desired set point by the m constant, TBD. Convert this binary
number to its hex equivalent: BBBBBBB. The result is sent
BBBBBB first, then BBBBB.
The constants are
FUNCTION
Operation
m
b
R
Output voltage
Output voltage shutdown
Write / read
TBD
0
0
Output Current
read
TBD
0
0
Temperature
read
1
0
0
Input Voltage
read
1
75
0
Input Power
read
1
0
0
Fan Speed setting ( % )
read
1
0
0
Fan speed in RPM
read
100
0
0
Standard features
The commands below are ‘read only’. They cannot be modified.
Command
Comments
ON_OFF_CONFIG (0x02)
Both the CNTL pin, enabling or
disabling the output, and the
OPERATION command are
supported. Other options are not
supported.
Vout_OV_fault_response (0x41)
Only latched (0x80) is supported
CAPABILITY (0x19)
400KHz, SMBALERT
PMBus revision (0x98)
1.2
PMBus
TM
Command set:
Non-supported commands are annunciated.
Command
Hex
Code
Data
Field
Non-
Volatile
Memory
Storage
Operation
0x01
1
yes
Clear_Faults
0x03
0
Write _Protect
0x10
1
no
Restore_default_all
0x12
0
Store_default_code
0x13
0
yes
Restore_default_code
0x14
0
Vout_mode
0x20
1
Vout_command
0x21
2
yes
Vin_ON
0x35
2
no
Vin_OFF
0x36
2
no
Fan_config_1_2
0x3A
1
yes
Fan_command_1
0x3B
2
Vout_OV_fault_limit
0x40
2
yes
Vout_OV_fault_response
0x41
1
yes
Vout_OV_warn_limit
0x42
2
yes
Vout_UV_warn_limit
0x43
2
yes
Vout_UV_fault_limit
0x44
2
yes
Vout_UV_fault_response
0x45
1
yes
Iout_OC_fault_limit
0x46
2
yes
Iout_OC_fault_response
0x47
1
yes
Iout_OC_warn_limit
0x4A
2
yes
OT_fault_limit
0x4F
2
yes
OT_fault_response
0x50
1
yes
OT_warn_limit
0x51
2
yes
Vin_OV_fault_limit
0x55
2
yes
Vin_OV_fault-response
0x56
1
yes
Vin_OV_warn_limit
0x57
2
yes
Vin_UV_warn_limit
0x58
2
yes
Vin_UV_fault_limit
0x59
2
yes
Vin_UV_fault_response
0x5A
1
yes
Status_byte
0x78
1
Status_word (+ byte)
0x79
1
Status_Vout
0x7A
1
Status_Iout
0x7B
1
Status_Input
0x7C
1
Status_temperature
0x7D
1
Status_CML
0x7E
1
Read_Vin
0x88
2
Read_Iin
0x89
2
8
Only latched (0x80) or restart (0xC0) are supported
9
Only latched (0xC0) or hiccup (0xF8) are supported
10
Only latched (0x80) or restart (0xC0) are supported