100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 291
* CNOMO = Comité de normalisation des moyens de production.
8.4 ADDRESS ALLOCATION
This section consists of a number of tables showing how the address space within the memory map is allo-
cated. For full details of confi guration parameters, refer to
section 4
. For convenience, the word ‘channel’ is
used as an umbrella term for measuring points in general (i.e. input channels, maths channels, totalisers etc.).
The following ‘types’ are used in the tables.
1 Uint16
16 bit unsigned integer.
2 Uint32 32 bit unsigned integer.
3 Uint64 64 bit unsigned integer.
4 Scaled Double precision fl oating point value scaled to represent single precision 16-bit integer
between – 32,767 and + 32,767.
5 Boolean Represented as a single 16 bit integer.
6 Enum
Enumeration value - represented by a single 16 bit character.
7
16, 32 and 64-bit 2’s complement signed integers.
Note: When reading a Process Variable (PV) values, as ‘scaled’ integers the position of the decimal
point is set by the ‘Max. Decimal Digits’ parameter in the relevant Channel’s Confi guration. Only if
the resulting value can be represented within 16 bit resolution (±32767), will the value be transmit-
ted accurately. For example, a value of 12.3456 needs more than 16-bit resolution, and the trans-
mitted value would be the maximum value of 32767 (over range). Reducing the number of decimal
places to three, for example (12.345) allows the value to be encoded as a 16-bit value which can be
transmitted accurately.
8.4.1 Instrument data
Parameter
Description
Type
Access
Start Addr. Register
Name
Hex (Dec)
Length
Instrument type
Instrument type number
Uint16
Read only
0001 (1)
1
Instrument descriptor
Instrument descriptor (up to 20 characters)
String_20
Read only 0002 (2)
10
Reserved
Not used
000C (12)
10
Instrument status
Uint16
Read only 0016 (22)
1
Bit 0:
Not used (value always 0)
Read only
Bit 1:
Not used (value always 0)
Read only
Bit 2:
Not used (value always 0)
Read only
Bit 3:
0 = SD/Flash card inserted, 1 = Missing
Read only
Bit 4:
0 = SD/Flash card not full, 1 = Full
Read only
Bit 5:
Not used (value always 0)
Read only
Bit 6
Not used (value always 0)
Read only
Bit 7
Not used (value always 0)
Read only
Bit 8:
Not used (value always 0)
Read only
Bit 9:
0 = No channel failures, 1 = channel failure
Read only
Bits 10 to 15: Not used (value always 0)
Read only
Confi g counter
Counts confi guration changes. Powers up at zero,
Uint16
Read only 0017 (23)
1
and is reset to zero at brown-out
Time
Current instrument time (UTC format)
Double
Read only 0018 (24)
4
Date
Current instrument date
Double
Read only
001C (28)
4
Global alarm acknowledge ‘1’ acknowledges all alarms. Other values: no effect
Uint16
Write only 0020 (32)
1
Spare
Not used
0021 (33)
74
Product version
Product version. Returns value HHHH (CNOMO*)
Uint 16
Read only 006B (107)
1
(HHHH = version number in hex. E.G. 0401 = version 4.01)
Serial number
Returns ‘Instrument Number’ (see
Section 4.5
) in decimal.
Uint32
Read only 006C (108)
2
Not used
006E (110)
11
Company ID
Company ID. Returns value hex 0500 (CNOMO*)
Uint 16
Read only 0079 (121)
1
Product ID
Product ID. Returns model number in hex (CNOMO*)
Uint 16
Read only 007A (122)
1
