100/180MM DISTRIBUTED GRAPHIC RECORDER: USER GUIDE
HA029324
Issue 11 Oct 14
User Guide
Page 276
* 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 allocat-
ed. For full details of con
fi
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 Con
fi
guration. Only if the
resulting value can be represented within 16 bit resolution (±32767), will the value be transmitted ac-
curately. For example, a value of 12.3456 needs more than 16-bit resolution, and the transmitted 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 accu-
rately.
8.4.1 Instrument data
Parameter name
Description
Type
Access
Start Addr
Hex (Dec)
Register
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 = Compact Flash card inserted; 1 = Missing
Read only
Bit 4: 0 = Compact 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
Con
fi
g counter
Counts con
fi
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 hex.
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
Summary of Contents for 6100
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