45
NOTE: Only bit 7 of datum D1 is written at the address indicated; D2 is processed as a template of the bit to be written
but is not written.
NOTE: If for any reason only one of the two writing commands is written (because of a break in the line, etc.) the
malfunction must be recorded (on P.C.) since after each command the selection bit is immediately updated. This might
lead to a selection error since the 2 selection bits are paired as follows:
- D1 (1st command) = 00H and
D1 (2nd command) = 00H <===> Standard 1
- D1 (1st command) = 00H and
D1 (2nd command) = 80H <===> Standard 2
- D1 (1st command) = 02H and
D1 (2nd command) = 00H <===> Cogener. 4
- D1 (1st command) = 02H and
D1 (2nd command) = 80H <===> Cogener. 4
(possible not used)
NOTE: For the COG4 selection only the 1st control is needed (2nd one is powerless).
- Writing in eeprom of the integration time for average value (SSSS = 0001H; D2 = 0C4H):
7
6
5
4
3
2
1
0
bit
0
0
-
-
-
0
-
-
==> 10 minutes
0
1
-
-
-
0
-
-
==> 15 minutes
1
0
-
-
-
0
-
-
==> 20 minutes
1
1
-
-
-
0
-
-
==> 30 minutes
0
0
-
-
-
1
-
-
==> 60 minutes
0
1
-
-
-
1
-
-
==> 1 minute
1
0
-
-
-
1
-
-
==> 2 minutes
1
1
-
-
-
1
-
-
==> 5 minutes
NOTE: Only bits 7, 6 and 2 of datum D1 are written at the address indicated; D2 is processed as a template of the bit to
be written but is not written.
- Writing in RAM/eeprom of the date and time (3 consecutive writing commands):
-1) SSSS = 0DFCH:
- D1 = minutes in BCD
- D2 = hours in BCD
-2) SSSS = 0DFEH:
- D1 = day in BCD
- D2 = month in BCD
-3) SSSS = 0C4BH:
- D1 = year in BCD
- D2 = 00H
NOTE: Only datum D1 is written at the address indicated; D2 is ignored.
- Reading in eeprom of the CT coefficient K
P.C.
MICROVIP3 PLUS
:,AA,03H,003A,0004, LRC, CR,LF ------>
<------ :,AA,03H,04,D1,D2,D3,D4,D5,D6,D7,D8,LRC,CR,LF
where:
-AA
= 01 = address of the MICROVIP3 PLUS selected(2 bytes ascii)
-03H
= Code of the command for reading of N words(2 bytes ascii)
-003A
= address from which the reading starts (8 bytes ascii)
-0004
= Number of words to be read (8 bytes ascii)
-LRC
= Longitudinal Redundancy Check (2 bytes ascii)
-CR
= 0DH (1 byte ascii)
-LF
= 0AH (1 byte ascii)
-08
= Number of bytes read
-D1
= CT primary in amps(LSB decimal mantissa)
-D2
= CT primary in amps(MSB decimal mantissa)
-D3
= CT primary exponent
-D4
= not significant
-D5
= CT secondary (LSB decimal mantissa)
-D6
= CT secondary (MSB decimal mantissa)
-D7
= CT secondary exponent
-D8
= not significant
E.g.
- CT primary = 1000A
- CT secondary = 1.0V
- CT K = 1000/1
