HA243821
Issue 5 Mar 98
Section5
Page 5 - 43
MODEL 346 INSTALLATION AND OPERATION MANUAL
5.7.6 DATA FORMATS
Table 5.7.6a lists the data formats used in the accessing of recorder parameters. The following conventions are
used:
A An alpha-numeric character.
D A decimal numeric entry.
H A hexadecimal character. (four bits) from 0 to F.
>
ASCII 3E. This character precedes a Hex value.
↓
ASCII 1F. This character is used as a unit separator.
↑
ASCII 1E. This character is used as a record separator.
’
ASCII 60. This character precedes an alpha-numeric value.
Table 5.7.6 a Data Format definition
0
5
5
Four hex characters (only two used). i.e. >00HH
1
5
5
Four hex characters i.e. >HHHH
2
23
11
10 hex characters i.e. >HHHHHHHHHH
3
23
17
16 hex characters i.e. >HHHHHHHHHHHHHHHH. Each bit defines an
action equation trigger as defined in table 5.7.6b.
5
6
2
Two decimal characters i.e. DD
6
20
6
A five-digit decimal number as shown below. At least one character
must precede the decimal point.
DDDDD.
-DDDDD. (For negative values)
DDDD.D
-DDDD.D (For negative values)
DDD.DD
-DDD.DD (For negative values)
DD.DDD
-DD.DDD (For negative values)
D.DDDD
-D.DDDD (For negative values)
7
21
10
A nine digit decimal number with the decimal point after the final
character i.e. DDDDDDDDD.
8
25
15
A 'scientific notation' decimal number with a five-digit mantissa and two
(20:6)
digit exponent. The + sign before the mantissa is optional, but + or -
must occur before the exponent:
↑
+D.DDDD
↓
-DD
9
22
6
Five alphanumeric characters used for units of measure i.e. 'AAAAA
A
22
7
Six alphanumeric characters used for a batch number i.e. 'AAAAAA
B
22
17
Sixteen alphanumeric characters used for descriptor srings i.e.
'AAAAAAAAAAAAAAAA
D
25
18
Twelve digits in separated pairs:
↑
mm
↓
HH
↓
DD
↓
MM
↓
YY
↓
SS used for
(6:6)
time and date. If SS = 0, then the year number is read. If SS = 1, he
year number is ignored.
mm = minutes; HH = hours; DD = day number; MM = month number;
YY = year least significant digits.
FE
5
5
Four hex characters for Read Only parameters i.e. >HHHH
FF
5
5
Four hex characters for changing bit parameters i.e. >HHHH
Format
340 *
EI
Bisynch
Nº of
bytes
Description
* 340 format is that quoted in the 'Format' column in tables 5.7.5c to 5.7.5 h inclusive
