90
6) Process Variable Transmission Format (BINARY)
Output bytes (2 bytes): 5 x n (specified number of ch6
(1) Date and time (6 bytes):
1
Year:
00
H to
63
H (00H for the year 2000)
2
Month:
01
H to
0
CH
3
Day:
01
H to
1
FH
4
Hour:
00
H to
17
H (24-hour system)
5
Minute:
00
H to
3B
H
6
Second:
00
H to
3B
H
(2) Process variable (5 bytes):
CH No. (1 byte): Channel number
01
H to
06
H
A1 to A4
(2 bytes): Alarm type activated at each alarm level
1
: Upper limit alarm
2
: Lower limit alarm
0
: Alarm OFF or alarm setting OFF
(Example) Bit Sequence.
LEVEL2H
LEVEL1H
LEVEL4H
LEVEL3H
LEVEL2L
LEVEL1L
LEVEL4L
LEVEL3L
LEVELxH: Upper limit alarm bit at the alarm level x
LEVELxL: Lower limit alarm bit at the alarm level x
DATA
1
, DATA
2
(2 bytes): Process variable
-
32000
to +
32000
(2-byte hexadecimal data)
The higher and lower bytes can be reversed by the BO command.
If Skip is specified,
8080
H will be outputted.
0
0
1
0
0
0
0
1
0
0
0
1
0
0
1
0
Output bytes
Date and time
Process variable 1
Process variable 6
CH No. A
2
A
4
A
1
A
3
DATA
1
DATA
2
[Note]
Output data over -32000 to +32000 constitutes overflow. The overflow 7E7EH is output on
the plus side, and 8181H is output on the minus side (Excluding the Decade channel).
Irrespective of the BO command, data output of the Decade channel is as follows.
The upper byte outputs a mantissa (10 to 99). The lower byte outputs an exponent
(-19 to 19). A decimal point position is fixed on the 1st digit after the decimal point.
2
3
4
5
6
1
