Endress+Hauser Tankvision NXA20 User manual

Products Solutions Services
BA01334G/00/EN/01.14
71260207
Valid as of software version:
1.1.0
Modbus Map Protocol
Tankvision Gauge Link NXA20
Enraf BPM / Emerson TRL/2 to RS485 Modbus

Tankvision Gauge Link
2Endress+Hauser
Table of Contents
1 Document information . . . . . . . . . . . . . . 4
1.1 Target audience for this manual . . . . . . . . . . . . . . . 4
1.2 Version history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Document function . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Basic safety instructions . . . . . . . . . . . . 6
2.1 Requirements for the personnel . . . . . . . . . . . . . . . 6
2.2 IT security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Workplace safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Identification . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Product identification . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Order code and device version . . . . . . . . . . . . . . . . . 9
3.4 Registered trademarks . . . . . . . . . . . . . . . . . . . . . . . 9
4 Introduction . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Reference documentation . . . . . . . . . . . . . . . . . . 10
4.2 Communication Parameters . . . . . . . . . . . . . . . . 10
4.3 Modbus Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Timeout and retries . . . . . . . . . . . . . . . . . . . . . . . 10
5 Modbus Task – Function: 4
(read 16 bit registers). . . . . . . . . . . . . . 11
5.1 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Primary information . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 Temperature data . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.4 Density data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.5 Temperature data status . . . . . . . . . . . . . . . . . . . 14
5.6 Floating point format and signed integer level
format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.7 Temperature data . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.8 Temperature data status . . . . . . . . . . . . . . . . . . . 16
5.9 Density data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.10 Diagnostic data . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6 Enraf Devices . . . . . . . . . . . . . . . . . . . . . 20
6.1 Modbus Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.2 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.3 Level addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.4 Average temperature addresses . . . . . . . . . . . . . 21
6.5 Temperature element addresses . . . . . . . . . . . . . 22
6.6 Live Water addresses . . . . . . . . . . . . . . . . . . . . . . 23
6.7 Water dip addresses . . . . . . . . . . . . . . . . . . . . . . . 23
6.8 Density addresses . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.9 Reserved addresses . . . . . . . . . . . . . . . . . . . . . . . . 25
6.10 Vapour temperature addresses . . . . . . . . . . . . . . 26
6.11 Base pressure P1 addresses . . . . . . . . . . . . . . . . . 27
6.12 Liquid pressure P2 addresses . . . . . . . . . . . . . . . . 28
6.13 Vapour pressure P3 addresses . . . . . . . . . . . . . . . 29
6.14 Type of Enraf gauge . . . . . . . . . . . . . . . . . . . . . . . . 29
7 Emerson Devices. . . . . . . . . . . . . . . . . . .31
7.1 Modbus Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.3 All parameter gauge address except
temperature devices . . . . . . . . . . . . . . . . . . . . . . . . 31
7.4 Temperature device addresses . . . . . . . . . . . . . . . 32
7.5 Live Water registers . . . . . . . . . . . . . . . . . . . . . . . . 33
7.6 Vapour temperature registers . . . . . . . . . . . . . . . . 34
7.7 Base pressure P1 registers . . . . . . . . . . . . . . . . . . . 35
7.8 Liquid pressure P2 registers . . . . . . . . . . . . . . . . . 36
7.9 Vapour pressure P3 registers . . . . . . . . . . . . . . . . 36
8 Modbus Task – Function: 1
(read coil status). . . . . . . . . . . . . . . . . . .38
8.1 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9 Modbus Task – Function: 5
(Force single coil) . . . . . . . . . . . . . . . . . .39
9.1 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10 Modbus Task – Function: 15
(Force multiple coil). . . . . . . . . . . . . . . .40
10.1 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11 Modbus Task – Function: 6
(Preset single register) . . . . . . . . . . . . .41
11.1 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
11.2 Gauge operation code. Data offset 26 (40027) . 41
12 Modbus Task – Function: 16
(Preset multiple register) . . . . . . . . . . .42
12.1 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
13 Modbus Task – Function: 8
(sub function 0) (Diagnostics) . . . . . . .43
13.1 Modbus Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
14 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
14.1 Product Level Status . . . . . . . . . . . . . . . . . . . . . . . . 44
14.2 Product Temperature Status . . . . . . . . . . . . . . . . . 44
14.3 Water Level Status . . . . . . . . . . . . . . . . . . . . . . . . . 45
14.4 Vapour Temperature Status . . . . . . . . . . . . . . . . . 45
14.5 Base Pressure P1 Status . . . . . . . . . . . . . . . . . . . . . 45
14.6 Liquid Pressure P2 Status . . . . . . . . . . . . . . . . . . . 46
14.7 Vapour Pressure P3 Status . . . . . . . . . . . . . . . . . . 46

Tankvision Gauge Link
Endress+Hauser 3
14.8 Density Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
14.9 Sensor Position Status . . . . . . . . . . . . . . . . . . . . . 47
14.10 Temperature Element . . . . . . . . . . . . . . . . . . . . . . 48
14.11 Density Position Status . . . . . . . . . . . . . . . . . . . . . 48
14.12 Density Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
14.13 Gauge Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Document information Tankvision Gauge Link
4Endress+Hauser
1 Document information
1.1 Target audience for this manual
This manual should support during the installation of the NXA20 units. It deals with the
mechenical, electrical and signal line installation. The first commisioning steps are described
as well.
Beside basic PC operating knowledge no special training is needed to perform the Tank
Gauging System operations. Nevertheless it is recommended receiving a training on the
system by Endress+Hauser.
1.2 Version history
1.3 Document function
1.3.1 Used symbols
Safety symbols
Electrical symbols
Document version Valid for SW version Changes to the previous version
BA01334G/00/EN/01.14 1.1.0 Initial version
Symbol Meaning
A0011189-EN
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in serious or fatal injury.
A0011190-EN
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in serious or fatal injury.
A0011191-EN
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in minor or medium injury.
A0011192-EN
NOTICE!
This symbol contains information on procedures and other facts which do not result
in personal injury.
Symbol Meaning
A0011197
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0011198
Alternating current
A terminal to which alternating voltage is applied or through which alternating current flows.
A0011200
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
system.
A0011199
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
DANGER
WARNING
CAUTION
NOTICE
)
*

Tankvision Gauge Link Document information
Endress+Hauser 5
Symbols for certain types of information
Symbols in graphics
1.4 Documentation
1.4.1 Operating instructions
Symbol Meaning
A0011193
Tip
Indicates additional information.
A0011195
Reference to page
Refers to the corresponding page number.
, , ... Series of steps
A0018373
Result of a sequence of actions
Symbol Meaning
1, 2, 3 ... Item numbers
, , ... Series of steps
A, B, C... Views
A0011187
Hazardous area
Indicates a hazardous area.
A0011188
Indicates a non-hazardous location
Safe area (non-hazardous area)
Document number Instrument Type of Document
BA01334G/00 Tankvision NXA20 Gauge Link Installation, Operation and Maintenance
Manual
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