KEPID AMSTECH CO. LTD. EMU11A Manual Do Utilizador

Página de 55
4. Software Interfaces 
 
-45- 
 
4.1.17 Software version 
The software version means the major release number of the EMU software. The MSB 
of this register contains the version number. The LSB of this register contains the 
revision number.   
 
4.1.18 Status word 
The status of the EMU can be read from a read-only register. 
Bit 
Status Description 
Set when synchronized to 50/60 Hz 
Set if a checksum error has been detected at power-up 
2, 3, 4, 5, 6, 7 
Not used 
8 Internal 
use 
only 
9 Internal 
use 
only 
10 Not 
used 
11 Internal 
use 
only 
12 Internal 
use 
only 
13, 14, 15 
Not used 
 
4.1.19 Command word 
The EMU can execute commands after a write to a command word, which is mapped 
to a R/W register. Setting a bit in the command word executes the command. 
Bit 
Command 
This resets the device counters and the interval counters. 
Places EMU in direct serial communication mode. It is used 
during manufacturing. Do not place EMU in this mode. 
Otherwise the EMU cannot communicate via the radio 
module. In this mode, turn off and on the device to reset to 
normal radio communication. 
1, 2, 3, 4, 5, 6, 8, 9, 
10, 11, 12, 13, 14, 15 
Not used/ignored 
 
The reset meter command resets the energy counters to zero in both RAM and non-
volatile RAM. This command does not affect the reporting intervals.