Page 11 of 39    Rev. 13 
2. MODBUS RTU 
 
2.1 RAM MEMORY MAP 
 
The following map shows the structure RAM of the PCOM card.  (R) mean «readable »  and (W) mean « writable ». 
The function available is: Holding register (03), input register (04), write register (06), and preset multiple 
register (16). 
 
 
Variable 
 
 
Unit 
 
Address 
(hex) 
 
Addres
s (dec) 
 
Byte 
 
State
 
Note 
Output voltage  V  01  1  2  R  note(1) 
Output current  A  02  2  2  R  note(1) 
Battery current  A  03  3  2  R  note(2) 
AC volt phase 1  V  04  4  2  R  note(1) 
AC volt phase 2  V  05  5  2  R  note(1) 
AC volt phase 3  V  06  6  2  R  note(1) 
AC current phase 1  A  07  7  2  R  note(1) 
AC current phase 2  A  08  8  2  R  note(1) 
AC current phase 3  A  09  9  2  R  note(1) 
Battery temperature  °C  0AH  10  1  R  note(3) 
Control board & inside temperature  °C  0AL  10  1  R  note(3) 
AC frequency  Hz  0B  11  2  R  note(1) 
Nominal output voltage  V  0C  12  2  R  note(1) 
Nominal output current (Shunt1)  A  0D  13  2  R  note(1) 
Float voltage  V  0E  14  2  R/W  note(1) 
Equalize voltage  V  0F  15  2  R/W  note(1) 
Float Current limit  A  10  16  2  R/W  note(1) 
Equalize Current limit  A  11  17  2  R/W  note(1) 
Formation voltage  V  12  18  2  R/W  note(1) 
Formation current   A  13  19  2  R/W  note(1) 
Formation relay    14H  20  1  R/W  note(3) 
Formation remaining time  H  14L  20  1  R/W  note(3) 
Formation time  H  15H  21  1  R/W  note(3) 
Charger state    15L  21  1  R  note(8) 
Charger configuration    16  22  2  R/W  note(7) 
Equalize mode start    17  23  2  R/W  note(9) 
Equalize remaining time out  mn  18  24  2  R  note(4) 
Equalize elapsed time out  mn  19  25  2  R  note(4) 
Manual equalize time out  H  1AH  26  1  R/W  note(3) 
Periodical equalize time  H  1AL  26  1  R/W  note(3) 
Periodical equalize period (delay)   H  1BH  27  1  R/W  note(3) 
DC Low volts equalize time out  H  1BL  27  1  R/W  note(3) 
DC Low volts equalize level  V  1C  28  2  R/W  note(1) 
AC fail equalize time out  H  1DH  29  1  R/W  note(3) 
AC fail equalize delay  S  1DL  29  1  R/W  note(3) 
Refresh equalize time out  mn  1EH  30  1  R/W  note(3) 
Refresh equalize period (delay)  H  1EL  30  1  R/W  note(3) 
Remote equalize time out  H  1F H  31        1  R/W  note(3) 
Current limit equalize time out  H  1FL  31  1  R/W  note(3) 
Current limit equalize delay  S  20H  32  1  R/W  note(3) 
Equalize termination (On/Off)    20L  32  1  R/W  note(10)
Post Charge Voltage delay  mn  21  33  2  R/W  note(4)