2.1.9. REG Command

The REG command allows read the status/fault registers and to reset the fault register.

The status register is a 32-bit register that contains the general information of the status of the unit such as on/off status, update mode etc. See Status Register section for the detailed description of the register’s bits.

The fault register is a 32-bit register that contains the fault information of the unit such (if any). See Fault register section for the detailed description of the register’s bits.

Command Format:

R/W	Command	Response	Description
R	REG:STATUS:?	#REG:STATUS:<hex_value>	Return the status register in hexadecimal representation
R	REG:FAULT:?	#REG:FAULT:<hex_value>	Return the fault register in hexadecimal representation [1]
R	REG:FAULT:FIRST:?	#REG:FAULT:FIRST:<hex_value>	Return which was the first fault that occurs (this is useful in case of multiple faults)
W	REG:RESET	#AK / #NAK	Reset the fault register [2] and the relative Fault bit in the status register

Parameter(s):

Name	Type	Description
<hex_value>	hex string	Hex string indicating the content of the relative register

Example(s):

REG:STATUS:? 
#REG:STATUS:0x14

REG:FAULT:? 
#REG:FAULT:0x9

REG:FAULT:FIRST? 
#REG:FAULT:0x8

REG:FAULT:RESET
#AK

REG:STATUS:? 
#REG:STATUS:0x10       

---

[1]

The fault register is latching, so if a fault condition happens, its information is stored in the fault register until the reset of the status register (so if for example a fault condition occurs and after a while is solved, the relative bit in the fault register remains valid, until the reset command).

[2]

In order to put the module in ON (see OUT Command), it is necessary to solve all the fault conditions and reset the fault register before powering ON the module.