Endress+Hauser Liquisys M CXM 223 User manual

BA208C/07/en/07.02
51501609
Supplement to
BA 193C/07/en
BA 194C/07/en
BA 199C/07/en
BA 200C/07/en
BA 214C/07/en
BA 246C/07/en
HART
Field Communication with
Liquisys M CXM 223 / 253
Operating Instructions

Liquisys M CXM 223 / 253 HART
2Endress+Hauser

Liquisys M CXM 223 / 253 HART
Endress+Hauser 3
Table of contents
1 Safety instructions . . . . . . . . . . . . . . . . . 4
1.1 Notes on safety conventions and icons . . . . . 4
1.2 Designated use . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Installation, Commissioning, Operation . . . . . . 5
1.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . 5
2 Identification . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Device designation . . . . . . . . . . . . . . . . . . . . . 6
2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Certificates and approvals . . . . . . . . . . . . . . . 6
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 System architecture . . . . . . . . . . . . . . . . . . . . . 7
3.2 Post-installation check . . . . . . . . . . . . . . . . . . . 7
4 Electrical connection . . . . . . . . . . . . . . 8
4.1 Quick connection guide . . . . . . . . . . . . . . . . . . 8
4.2 Connecting the HART® handheld terminal
DXR 275 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Connecting a PC with operating programme . 9
4.4 Post-connection check . . . . . . . . . . . . . . . . . 10
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Display and operating elements . . . . . . . . . . 11
5.2 Operation via the HART® handheld terminal
DXR 275 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 Operation via Commuwin II . . . . . . . . . . . . . . 12
5.4 HART® commands . . . . . . . . . . . . . . . . . . . . . 18
6 Commissioning . . . . . . . . . . . . . . . . . . . 24
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 Setting the device address . . . . . . . . . . . . . . . 24
7 Maintenance . . . . . . . . . . . . . . . . . . . . . . 25
8 Troubleshooting . . . . . . . . . . . . . . . . . . 26
8.1 Device status / error messages . . . . . . . . . . . 26
9 Accessories . . . . . . . . . . . . . . . . . . . . . . . 32
10 Technical data . . . . . . . . . . . . . . . . . . . . 33
10.1 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10.2 Electrical connection . . . . . . . . . . . . . . . . . . . 33
10.3 Human interface . . . . . . . . . . . . . . . . . . . . . . 33
10.4 Documentation . . . . . . . . . . . . . . . . . . . . . . . . 33

1 Safety instructions Liquisys M CXM 223 / 253 HART
4Endress+Hauser
1 Safety instructions
1.1 Notes on safety conventions and icons
General safety instructions
Electrical symbols
#
Warning!
This symbol alerts you to hazards which could cause serious injuries as well as damage to the instrument if
ignored.
"
Caution!
This symbol alerts you to possible faults which could arise from incorrect operation. They could cause
damage to the instrument if ignored.
!
Note!
This symbol indicates important items of information.
%
DC voltage
A terminal at which DC voltage is applied or through which DC flows.
&
AC voltage
A terminal at which (sine-form) AC voltage is applied or through which AC flows.
)
Ground connection
A grounded terminal, which, from the user’s point of view, is already grounded using a ground system.
*
Protective earth terminal
A terminal which must be grounded before other connections may be set up.
+
Equipotential connection
A connection which must be connected to the grounding system of the equipment. This can be, for
example, a potential matching line of a star-shaped grounding system, depending on national or company
practice.
/
Double insulation
The equipment is protected with double insulation.
b
Alarm relay
Input
Output

Liquisys M CXM 223 / 253 HART 1 Safety instructions
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1.2 Designated use
These Operating Instructions were specially designed for use with transmitters from the
Liquisys M CXM 223 / 253 family. They contain specific information on instruments
equipped with the HART®interface (Highway Adressable Remote Transducer). The
HART®interface allows the device to be operated via the handheld terminal DXR 275
or, using the operating programme Commuwin II, at a PC by means of a HART®modem,
e.g. Commubox FXA 191.
Any other use than the one described here compromises the safety of persons and the
entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
1.3 Installation, Commissioning, Operation
Please note the following items:
•Installation, electrical connection, commissioning, operation and maintenance of the
measuring system must only be carried out by trained technical personnel.
The technical personnel must be authorised for the specified activities by the system
operator.
•Technical personnel must have read and understood theses Operating Instructions
and must adhere to them.
•Before commissioning the entire measuring point, check all the connections for
correctness. Ensure that electrical cables and hose connections are not damaged.
•Do not operate damaged products and secure them against unintentional
commissioning.
•Measuring point faults may only be rectified by authorised and specially trained
personnel.
•If faults can not be rectified, the products must be moved from service and secured
against unintentional commissioning.
•Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the Endress+Hauser service organisation.
1.4 Operational safety
The transmitter has been designed and tested according to the state of the art and left
the factory in perfect functioning order.
Relevant regulations and European standards have been met.
As the user, you are responsible for complying with the following safety conditions:
•Installation instructions
•Local standards and regulations

2 Identification Liquisys M CXM 223 / 253 HART
6Endress+Hauser
2 Identification
2.1 Device designation
2.1.1 Nameplate
Identify your device using the product structure in the standard Operating Instructions
for the device, (s. chap. 2.2).
2.2 Scope of delivery
Check the scope of delivery using your order and the delivery documents for:
•Completeness
•Instrument type and version acc. to the nameplate, (s. chap. 2.1.1)
•Accessories, (s. chap. 9)
•Standard Operating Instructions BA 193C/07/en (CLM), BA 194C/07/en (CPM),
BA 199C/07/en (COM), BA 200C/07/en (CUM), BA 214C/07/en (CCM),
BA 246C/07/en (COM F)
•HART®Operating Instructions BA 208C/07/en
2.3 Certificates and approvals
Declaration of conformity
The transmitter complies with the legal demands of the harmonized European
standards. Endress+Hauser certifies the compliance with the standards by using the
4
mark.
Fig. 1: Example of a nameplate of the Liquisys M CXM 223 / 253 transmitter
with HART®communication.

Liquisys M CXM 223 / 253 HART 3 Installation
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3Installation
3.1 System architecture
The complete system consists of the following components:
•Transmitter Liquisys M CXM 223 / 253 (1)
•HART®handheld terminal DXR 275 (2)
•HART®modem Commubox FXA 191 (3)
•PC with operating programme Commuwin II (4)
•Recorder (5)
Fig. 2: System architecture Liquisys M CXM 223 / 253 HART®
3.2 Post-installation check
After installing the transmitter, carry out the following checks:
Instrument status and specifications Note
Is the transmitter damaged? Visual inspection
Installation Note
Are the measuring point number and the labelling correct? Visual inspection
Process environment/conditions Note
Is the transmitter protected against rainfall and direct
sunlight?
For outdoor installation, the weather
protection cover CYY 101 is required,
(see Accessories).

4 Electrical connection Liquisys M CXM 223 / 253 HART
8Endress+Hauser
4 Electrical connection
4.1 Quick connection guide
4.1.1 Wiring diagram
Users have the following connection options at their disposal:
•Direct connection to the transmitter by means of current output 1
(terminals 31 / 32)
•Connection by means of the 4...20 mA circuit.
!
Note!
•The measuring circuit’s minimum load in current output 1 must be at least 250 Ω.
Fig. 3: Electrical connection of Liquisys M CPM 253 HART®
Fig. 4: Electrical connection of Liquisys M CPM 223 HART®

Liquisys M CXM 223 / 253 HART 4 Electrical connection
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4.2 Connecting the HART®handheld terminal
DXR 275
You require the HART®handheld terminal DXR 275 for operation using a handheld
terminal. The HART®handheld terminal DXR 275 is connected via the current output 1
of the transmitter.
For connecting, please refer also to the documentation issued by the HART®
Communication Foundation, and in particular the booklet HCF LIT 20: “HART®,
A Technical Overview”.
Fig. 5: Electrical connection of the HART®handheld terminal DXR 275
1= current output 1 of the transmitter, 2 = power supply, 3 = screening, 4 = other switching units or PLC with
passive input, 5 = HART®handheld terminal DXR 275
4.3 Connecting a PC with operating programme
You require a HART®modem Commubox FXA 191 for connecting a personal computer
with operating programme Commuwin II. The HART®modem Commubox FXA 191 is
connected via the current output 1 of the transmitter.
For connecting please refer also to the documentation issued by the HART®
Communication Foundation, and in particular the booklet HCF LIT 20: “HART®,
A Technical Overview”.
Fig. 6: Electrical connection of the Commubox FXA 191
1 = current output 1 of the transmitter, 2 = power supply, 3 = screening, 4 = other switching units or PLC with
passive input, 5 = PC with operating software, 6 = HART®modem Commubox FXA 191

4 Electrical connection Liquisys M CXM 223 / 253 HART
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!
Note!
•The Commuwin II and HART®handheld terminal DXR 275 can only be operated
simultaneously if:
–one device is set as the primary master and the other as the secondary master
–neither master is constantly communicating.
4.4 Post-connection check
After wiring up the electrical connection of the measuring instrument, carry out the
following checks:
Instrument status and specifications Note
Is the measuring instrument or the cable damaged externally? Visual inspection
Electrical connection Note
Does the supply voltage match the specifications on the
nameplate?
100 / 115 / 230 V AC
24 V AC / DC
Do the cables used fulfil the required specifications? Use genuine E+H cables for
sensor connection, see
Accessories chapter in the
standard Operating Instructions
Are the mounted cables strain-relieved?
Is the cable type route completely isolated? Along the whole cable length,
run the power supply and signal
line cables separately to avoid
any mutual influence. Cable
channels are best.
No loops and cross-overs in the cable run?
Are the power supply and signal cable correctly connected
according to the wiring diagram?
Are all the screw terminals tightened?
For connection with potential matching (PML):
Is the PML connected to the measuring medium?
! Note!
During calibration, insert the
PML into the buffer solution.
Are all the cable entries installed, tightened and sealed?
Cable run with "water sag"?
"Water sag": cable circuit
hanging down so that water can
drip off.
Are all the housing covers installed and tightened? Check seals for damage.

Liquisys M CXM 223 / 253 HART 5 Operation
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5Operation
5.1 Display and operating elements
Fig. 7: User interface Liquisys M CXM 223 / 253
1 = Display for active communication via HART®interface
Please refer to the standard Operating Instructions for an explanation of the key assignment and the other icons.
5.2 Operation via the HART®handheld terminal
DXR 275
The HART®handheld terminal DXR 275 is operated by means of push buttons with
which the instrument functions on a special HART®function matrix are selected. Please
refer to the "Communicator DXR 275" Operating Instructions which are supplied with the
handheld terminal for information on the operation of the HART®handheld terminal
DXR 275.
Fig. 8: Operating the HART®handheld terminal DXR 275

5 Operation Liquisys M CXM 223 / 253 HART
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5.3 Operation via Commuwin II
Commuwin II is a graphic operating programme with various communication protocols.
Connection to Commuwin II is by means of the HART®modem Commubox FXA 191. The
parameters are configured either by means of the keypad or by means of the graphic
interface. In addition, measured values can be displayed and recorded with a line
recorder.
Commuwin II supports the configuration of the transmitter in on-line mode only. The
entire Liquisys M operating menu cannot be accessed via Commuwin II. The following
diagrams illustrate the functions available.
The matrix positions are determined by "V0...A" to indicate the vertical position and by
"H0...9" to indicate the horizontal position.
Fig. 9: Operation of Liquisys M CLM 223 / 253 via the operating programme Commuwin II
!
Note!
•Refer to the Operating Instructions BA 124F/00/de for further information on the
operation with Commuwin II.
•Make sure that the current output 1 is operated at 4 ... 20 mA during parameter setting.
There is no presetting due to tranmitter operation without HART®communication
(HART®only as upload-download support).
•Remote calibration via the HART®interface is not possible.
•All operating fields are accessible via off-line parameter setting, if access code "Yes"
is selected in matrix position V9H2 and V9H3. If there is no compatibility with the
actual device status (e.g. no access code for Plus package), error code E003 is
displayed after finishing the download.

Liquisys M CXM 223 / 253 HART 5 Operation
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Table of matrix positions
Field
coding Function group VH position CPM 2X3 VH position CLM 2X3 VH position CUM 2X3 VH position COM 2x3 VH position CCM 2x3
- Measured value
display V0H0 V0H0 V0H0 V0H0 V0H0
- Measured value
display with
temperature in °C
V0H1 V0H1 V0H1 V0H1 V0H1
- Measured value
display in mV V1H7 - - V1H7 V1H7
- Measured value
display uncomp. -V0H7---
- Measured value
display in FNU --V0H7--
- Measured value
display in nA ---V0H8-
- Error display V8H0 V8H0 V8H0 V8H0 V8H0
- Editing mode V8H9 V8H9 V8H9 V8H9 V8H9
ASetup1
A1 V0H2 V0H2 V0H2 V0H2 V0H3
A2 - V0H3 V0H3 V0H3 V0H4
A3 V0H3 V0H4 V0H4 V0H4 V0H5
A4 V0H6 V0H5 V0H5 V0H5 V0H6
A5 V0H5 V1H5 V0H6 V0H7 V0H7
A6 V0H4 V1H6
(kond.)
- V0H6 V0H8
A7 - V0H6 - - V0H9
BSetup2
B1 V1H0 V1H0 V1H0 V1H0 V1H0
B2 V1H1 V1H1 V1H1 V1H8 V1H1
B3 V1H2 V1H2 V1H2 V1H9 V1H2
B4 - V1H4 V1H3 - -
B5 V1H9 V1H8 V1H4 - V1H9
B6 - V1H9 V1H5 - -
B7 - V1H3 V1H8 - -
B8 --V1H9--
B9 --V1H6--

5 Operation Liquisys M CXM 223 / 253 HART
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Z Current input
Z1 V5H0 V9H0 V6H0 V5H0 V5H0
Z2 V5H1 V9H1 V6H1 V5H1 V5H1
Z3 V5H2 V9H2 V6H2 V5H2 V5H2
Z4 V5H3 V9H3 V6H3 V5H3 V5H3
Z5 V5H4 V9H4 V6H4 V5H4 V5H4
Z6 V5H5 V9H5 V6H5 V5H5 V5H5
Z7 V5H6 V9H6 V6H6 V5H6 V5H6
O Current output
O1 V2H0 V2H0 V2H0 V2H0 V2H0
O2 V2H1 V2H1 V2H1 V2H1 V2H1
O3 V2H2 V2H2 V2H2 V2H2 V2H2
O3x1 V2H3 V2H3 V2H3 V2H3 V2H3
O3x2 V2H4 V2H4 V2H4 V2H4 V2H4
O3x3 V2H5 V2H5 V2H5 V2H5 V2H5
O334 V2H6 V2H6 V2H6 V2H6 V2H6
O335 V2H7 V2H7 V2H7 V2H7 V2H7
O336 V2H8 V2H8 V2H8 V2H8 V2H8
FAlarm
F1 V8H1 V8H1 V8H1 V8H1 V8H1
F2 V8H2 V8H2 V8H2 V8H2 V8H2
F3 V8H3 V8H3 V8H3 V8H3 V8H3
F4 -----
F5 V8H4 V8H4 V8H4 V8H4 V8H4
F6 V8H6 V8H6 V8H6 V8H6 V8H6
F7 V8H7 V8H7 V8H7 V8H7 V8H7
F8 V8H8 V8H8 V8H8 V8H8 V8H8
F9 -----
Field
coding Function group VH position CPM 2X3 VH position CLM 2X3 VH position CUM 2X3 VH position COM 2x3 VH position CCM 2x3

Liquisys M CXM 223 / 253 HART 5 Operation
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PCheck
P1 V6H0 V7H0 V7H1 V7H0 V7H0
P2 V6H1 V7H1 V7H2 V7H1 V7H1
P3 V6H2 V7H2 V7H3 V7H2 V7H2
P4 V7H0 V7H3 V7H4 V7H3 V7H3
P5 V7H1 V7H4 V7H5 V7H4 V7H4
P6 V7H2 V7H5 V7H6 V7H5 V7H5
P7 V7H3 V7H6 V7H7 V7H6 V7H6
P8 V7H4 V7H7 V7H8 V7H7 V7H7
P9 V7H5 V7H8 - - V7H8
P10 V7H6----
P11 V7H7----
P12 V7H8----
RRelays
R1 V3H0 V3H0 V3H0 V3H0 V3H0
R2 V3H1 V3H1 V3H1 V3H1 V3H1
R2x1 V3H2 V3H2 V3H2 V3H2 V3H2
R2x2 V4H0 V4H0 V4H0 V4H0 V4H0
R2x3 V4H1 V4H1 V4H1 V4H1 V4H1
R2x4 V4H2 V4H2 V4H2 V4H2 V4H2
R2x5 V4H3 V4H3 V4H3 V4H3 V4H3
R2x6 V4H4 V4H4 V4H4 V4H4 V4H4
R2x7 V4H5 V4H5 V4H5 V4H5 V4H5
R2x8 V4H6 V4H6 V4H6 V4H6 V4H6
R2x9 V4H7 V4H7 V4H7 V4H7 V4H7
R2x10 V4H8 V4H8 V4H8 V4H8 V4H8
R2x11 V4H9 V4H9 V4H9 V4H9 V4H9
R2x12 V5H9----
Field
coding Function group VH position CPM 2X3 VH position CLM 2X3 VH position CUM 2X3 VH position COM 2x3 VH position CCM 2x3

5 Operation Liquisys M CXM 223 / 253 HART
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T Alpha Table - - - -
T1 - V6H0 - - -
T2 - V6H1 - - -
T3 - V6H2 - - -
T4 - V6H3 - - -
T5 - V6H4 - - -
T6 - V6H5 - - -
K Concentration - - -
K1 - V5H0 V5H0 - -
K2 - V5H1 V5H1 - -
K3 - V5H2 V5H2 - -
K4 - V5H3 V5H3 - -
K5 - V5H4 V5H4 - -
K6 - V5H5 V5H5 - -
K7 - V5H6 V5H6 - -
K8 - V5H7 V5H7 - -
K9 -V5H8---
S Service
S1 - - - -
S2 V9H0 VAH5 V9H0 V9H0 V9H0
S3 -----
S4 V9H1 VAH6 V9H1 V9H1 V9H1
S5 V9H2 VAH7 V9H2 V9H2 V9H2
S6 V9H3 V9H7 V9H3 V9H3 V9H3
S7 -----
S8 VAH3 VAH3 VAH3 VAH3 VAH3
S9 V9H4 V9H8 V9H4 V9H4 V9H4
S10 -----
S11 -----
S12 H0H7----
Field
coding Function group VH position CPM 2X3 VH position CLM 2X3 VH position CUM 2X3 VH position COM 2x3 VH position CCM 2x3

Liquisys M CXM 223 / 253 HART 5 Operation
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E E+H Service
E111 VAH2 VAH2 VAH2 VAH2 VAH2
I Interface
I1 VAH1 VAH1 VAH1 VAH1 VAH1
I2 VAH0 VAH0 VAH0 VAH0 VAH0
CCalibration
C134 - V1H6
(ind.)
---
V Offset - - -
V1 V0H8 - V0H8 - -
V2 V0H9 - V0H9 - -
Field
coding Function group VH position CPM 2X3 VH position CLM 2X3 VH position CUM 2X3 VH position COM 2x3 VH position CCM 2x3

5 Operation Liquisys M CXM 223 / 253 HART
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5.4 HART®commands
The HART®protocol allows the transfer of measuring and device data between the
HART®master and the field device. The HART®master, such as the handheld terminal
or the PC-based operating programmes (Commuwin II), require device description
(DD) files. They are used to access all the information in a HART®device. Such
information is transferred solely via "commands”.
There are three different command classes:
Universal commands:
All HART®devices support and use universal commands. The following functionalities
are linked to them:
•Recognising HART®devices
•Reading off digital measured values (pH value, conductivity, temperature etc.)
Common practice commands:
Common practice commands offer functions which are supported and can be executed
by many field devices.
Device-specific commands:
These commands allow access to device-specific functions which are not HART®
standard. Such commands access individual field device information, for example.
Device descriptions for universal and common practice commands are contained in
HART®master systems, (e.g. handheld terminal DXR 275, Emerson AMS, Simatic
PDM). In this way, diverse functions can also be operated without a special device
description. Device-specific commands always require a special device description.

Liquisys M CXM 223 / 253 HART 5 Operation
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The following table contains all the commands supported by Liquisys M CXM 223 / 253.
Command No.
HART®command / Access type Command data (numeric data in decimal form)
Response data
(numeric data in decimal form)
Universal commands
0 Read unique device identifier
Access type = Read
none The device identifier provides information on
the device and manufacturer; it cannot be
altered.
The response consists of a 12 -byte device ID:
–Byte 0: fixed value 254
–Byte 1: manufacturer ID: 17 = E+H
–Byte 2: device type ID:
145 = CPM 2X3,
146 = CLM 2X3 inductive
147 = CLM 2X3 conductive
148 = COM 2X3
149 = CUM 2X3
150 = CCM 2X3
–Byte 3: number of preambles
–Byte 4: rev. no. universal commands
–Byte 5: rev. no. device-spec. commands
–Byte 6: software revision
–Byte 7: hardware revision
–Byte8: additional device information
–Byte 9-11: device identification
1 Read main measured value
Access type = Read
none –Byte 0: HART®unit ID of the main measured
value
–Byte 1-4: main measured value
2 Read the main measured
value as current in mA and
percentage of the set
measuring range
Access type = Read
none –Byte 0-3: current current of the current
output 1 (main measured value) in mA
–Byte 4-7: percentage of the set measuring
range
3 Read the main measured
value as current in mA and
four dynamic process
variables
Access type = Read
none 24 bytes are sent as a response:
–Byte 0-3: current of the current output 1
(= main measured value) in mA
–Byte 4: HART®unit ID of the main measured
value
–Byte 5-8: main measured value
–Byte 9: HART®unit ID of the temperature
–Byte 10-13: temperature
6SetHART
®short-form
address
Access type = Write
Byte 0: desired address (0...15)
Factory setting
0
! Note!
With an address >0 (multi-drop mode), the
current output 1 of the main measured value is
fixed at 4 mA. Any current simulation is
terminated.
–Byte 0: active address

5 Operation Liquisys M CXM 223 / 253 HART
20 Endress+Hauser
11 Read unique device identifier
using the tag
Access type = Read
Byte 0-5: tag
! Note!
The tag can be set using command 18.
The device identifier provides information on
the device and manufacturer; it cannot be
altered.
The response consists of a 12 -byte device ID if
the given tag agrees with the one saved in the
device:
–Byte 0: fixed value 254
–Byte 1: manufacturer ID: 17 = E+H
–Byte 2: device type ID:
145 = CPM 2X3,
146 = CLM 2X3 inductive
147 = CLM 2X3 conductive
148 = COM 2X3
149 = CUM 2X3
150 = CCM 2X3
–Byte 3: number of preambles
–Byte 4: rev. no. universal commands
–Byte 5: rev. no. device-spec. commands
–Byte 6: software revision
–Byte 7: hardware revision
–Byte 8: additional device information
–Byte 9-11: device identification
12 Read user message
Access type = Read
none –Byte 0-23: current user message
! Note!
You can write the user message using
command 17.
13 Read tag, tag description
and date
Access type = Read
none –Byte 0-5: tag
–Byte 6-17: tag description
–Byte 18-20: date
! Note!
You can write the tag, tag description and date
using command 18.
14 Read sensor information on
the main measured value
Access type = Read
none –Byte 0-2: serial number of the sensor
–Byte 3: HART®unit ID of the sensor limits and
measuring range of the main measured value
–Byte 4-7: upper sensor limit
–Byte 8-11: lower sensor limit
–Byte 12-15: minimum distance between the
limits
15 Read output information of
main measured value
Access type = Read
none –Byte 0: alarm selection ID
–Byte 1: ID for transfer function
–Byte 2: HART®unit ID for the set measuring
range of the main measured value
–Byte 3-6: end of measuring range, value for
20 mA
–Byte 7-10: start of measuring range, value for
4mA
–Byte 11-14: not used
–Byte 15: ID for write protection
–Byte 16: ID for OEM dealer: 17 = E+H
16 Read the device production
number
Access type = Read
none –Byte 0-2: production number
! Note!
You can write the production number using
command 19.
Command No.
HART®command / Access type Command data (numeric data in decimal form)
Response data
(numeric data in decimal form)