Endress+Hauser promag 50 PROFIBUS-PA Technical specifications

KA 014D/06/en/04.01
Valid as of software version:
V 1.01.XX (Amplifier)
V 1.00.XX (Communication)
promag 50
PROFIBUS-PA
Electromagnetic
Flow Measuring System
Brief Operating Instructions
Commissioning the PROFIBUS-PA interface

Promag 50 PROFIBUS-PA
2Endress+Hauser
This brief operating instruction serves for commissioning the Promag 501 interface. You
will find complete information in the Promag 50 Operating Instructions BA 055D/06/en/
04.01.

Warning:
For safety instructions regarding the installation, commissioning and operation, as well
as operational safety and returns of Promag 50 see the Promag 50 Operating Instruc-
tions BA 055D/06/en/04.01.

Promag 53 PROFIBUS-DP/-PA Table of contents
Endress+Hauser 3
Table of contents
1 Safety instructions . . . . . . . . . . . . . . 5
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Installation, commissioning and operation . . . 5
2 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Cable specifications – PROFIBUS-PA . . . . . . . 7
2.2 Connecting the measurement device . . . . . . 10
2.2.1 Connecting the transmitter . . . . . . . . . 10
2.2.2 Terminal assignment . . . . . . . . . . . . . 12
2.2.3 Fieldbus connector . . . . . . . . . . . . . . . .13
2.3 Electrical connection check . . . . . . . . . . . . . . 15
3 Operation . . . . . . . . . . . . . . . . . . . . . 17
3.1 Operation at a glance . . . . . . . . . . . . . . . . . . 17
3.2 Operation via the local display . . . . . . . . . . . 18
3.2.1 Display and operating elements . . . . 18
3.2.2 Brief description of the function matrix .19
3.3 Group COMMUNICATION . . . . . . . . . . . . . . . 21
3.4 Group TOTALIZERS . . . . . . . . . . . . . . . . . . . . 23
3.5 Communication: PROFIBUS-PA . . . . . . . . . . 25
3.5.1 PROFIBUS-PA technology . . . . . . . . . 25
3.5.2 System architecture . . . . . . . . . . . . . . 25
3.5.3 Acyclic data exchange . . . . . . . . . . . . .27
3.6 Operation using the PROFIBUS configuration
program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.6.1 FieldTool™ operating program . . . . . . 28
3.6.2 Commuwin II operating program . . . . 28
3.7 Hardware settings . . . . . . . . . . . . . . . . . . . . . 36
3.7.1 Setting the write protection . . . . . . . . . 36
3.7.2 Setting the device address for PROFIBUS-
PA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
4 Commissioning . . . . . . . . . . . . . . . . 39
4.1 Function check . . . . . . . . . . . . . . . . . . . . . . . 39
4.2 Commissioning via the local display . . . . . . . 40
4.3 Commissioning via a Class 2 Master
(Commuwin II) . . . . . . . . . . . . . . . . . . . . . . . . 41
4.3.1 Rescaling the input value . . . . . . . . . . 42
4.4 System integration . . . . . . . . . . . . . . . . . . . . . 43
4.4.1 Cyclic data exchange . . . . . . . . . . . . . .46
4.4.2 Configuration examples with the Simatic
S7 HW Config . . . . . . . . . . . . . . . . . . . .52
5 Trouble-shooting. . . . . . . . . . . . . . . 57
5.1 Software history . . . . . . . . . . . . . . . . . . . . . . . 58
6 Technical data. . . . . . . . . . . . . . . . . 59

Table of contents Promag 53 PROFIBUS-DP/-PA
4Endress+Hauser

Promag 50 PROFIBUS-PA 1 Safety instructions
Endress+Hauser 5
1 Safety instructions
1.1 Designated use
The measuring device described in this Operating Manual is to be used only for meas-
uring the flow rate of conductive fluids in closed pipes. A minimum conductivity of
20 µS/cm is required for measuring demineralised water. Most fluids can be metered,
provided they have a minimum conductivity of 5 µS/cm, for example:
•acids, caustic solutions,
•drinking water, wastewater, sewage sludge,
•milk, beer, wine, mineral water, etc.
The manufacturer accepts no liability for damages resulting from incorrect use or use
not as designated.
1.2 Installation, commissioning and operation
Note the following points:
•Installation, connection to the electricity supply, commissioning and maintenance of
the device must be carried out by trained, qualified specialists authorised to perform
such work by the facility's owner-operator. The specialist must have read and under-
stood this Operating Instruction and must follow the instructions it contains.
•The device must be operated by persons authorised and trained by the facility's
owner-operator. Strict compliance with the instructions in the Operating Instruction is
mandatory.
•Endress+Hauser will be happy to assist in clarifying the chemical resistance proper-
ties of parts wetted by special fluids, including fluids used for cleaning.
•If welding work is performed on the piping system, do not ground the welding appli-
ance through the Promag flowmeter.
•The installer must ensure that the measuring system is correctly wired in accordance
with the wiring diagrams. The transmitter must be grounded, unless the power supply
is galvanically insulated.
•Invariably, local regulations governing the opening and repair of electrical devices
apply.

1 Safety instructions Promag 50 PROFIBUS-PA
6Endress+Hauser

Promag 50 PROFIBUS-PA 2 Wiring
Endress+Hauser 7
2Wiring

Warning:
•When connecting Ex-certified devices, see the notes and diagrams in the Ex-specific
supplement. Please do not hesitate to contact your E+H representative if you have any
questions.
•If you use remote versions, connect each sensor only to the transmitter having the
same serial number. Measuring errors can occur if the devices are not connected in
this way.
2.1 Cable specifications – PROFIBUS-PA
Cable type
Twin-core cable is required for connecting the flowmeter to the fieldbus. By analogy
with IEC 61158-2 protocol four different cable types (A, B, C, D) can be used with the
PROFIBUS protocol, only two of which (cable types A and B) are shielded.
•Cable types A or B are particularly preferable for new installations. Only these types
have cable shielding that guarantees adequate protection from electromagnetic inter-
ference and thus the most reliable data transfer. On multi-pair cables (Type B), it is
permissible to operate multiple Fieldbuses (with the same degree of protection) on
one cable. No other circuits are permissible in the same cable.
•Practical experience has shown that cable types C and D should not be used due to
the lack of shielding, since the freedom from interference generally does not meet the
requirements described in the standard.
The electrical data of the fieldbus cable has not been specified but determines impor-
tant characteristics of the design of the fieldbus, such as distances bridged, number of
participants, electromagnetic compatibility, etc.
Cable Type A Cable Type B
Cable structure twisted pair,
shielded
one or more twisted pairs, fully
shielded
Wire size 0.8 mm2(AWG 18) 0.32 mm2(AWG 22)
Loop resistance (DC) 44 Ω/km 112 Ω/km
Impedance at 31.25 kHz 100 Ω± 20% 100 Ω± 30%
Attenuation at 39 kHz 3 dB/km 5 dB/km
Capacitive asymmetry 2 nF/km 2 nF/km
Envelope delay distortion
(7.9 through 39 kHz) 1.7 µs/km *
Shield coverage 90% *
Max. cable length
(inc. spurs >1 m) 1900 m 1200 m
* not specified

2 Wiring Promag 50 PROFIBUS-PA
8Endress+Hauser
Suitable fieldbus cables from various manufacturers for the non-hazardous area are
listed below:
•Siemens: 6XV1 830-5BH10
•Belden: 3076F
•Kerpen: CeL-PE/OSCR/PVC/FRLA FB-02YS(ST)YFL
Maximum overall cable length
The maximum network expansion depends on the type of ignition protection and the
cable specifications. The overall cable length is made up of the length of the main cable
and the length of all spurs (>1 m). Note the following points:
•The maximum permissible overall cable length depends on the cable type used.
•If repeaters are used the maximum permissible cable length is doubled.
A maximum of four repeaters are permitted between station and master.
Maximum spur length
The line between distribution box and field device is described as a spur.
In the case of non ex-rated applications the max. length of a spur depends on the
number of spurs (>1 m):
Number of field devices
In systems that meet FISCO in the EEx ia type of protection, the line length is limited a
max. of 1000 m.
A maximum of 32 stations per segment in non-explosive areas or a maximum of 10 sta-
tions in an Ex-area (EEx ia IIC) are possible. The actual number of stations must be
determined during the project planning.
Bus termination
The start and end of each fieldbus segment are always to be terminated with a bus ter-
minator. With various junction boxes (not Ex-rated) the bus termination can be activated
via a switch. If this is not the case a separate bus terminator must be installed. Note the
following points in addition:
•In the case of a branched bus segment the device furthest from the segment connec-
tor represents the end of the bus.
•If the fieldbus is extended with a repeater then the extension must also be terminated
at both ends.
Shielding and grounding – PROFIBUS-PA
When planning the shielding and grounding for a field bus system, there are three
important points to consider:
•Electromagnetic compatibility (EMC)
•Explosion protection
•Safety of the personnel
To ensure the optimum electromagnetic compatibility of systems, it is important that the
system components and above all the cables, which connect the components, are
shielded and that no portion of the system is unshielded.
Ideally, the cable shields will be connected to the field devices' housings, which are
usually metal. Since these housings are generally connected to the protective ground
conductor, the shield of the bus cable will thus be grounded many times.
Type A 1900 m
Type B 1200 m
Number of spurs 1 ... 12 13... 14 15... 18 19... 24 25... 32
Max. length per spur 120 m 90 m 60 m 30 m 1 m

Promag 50 PROFIBUS-PA 2 Wiring
Endress+Hauser 9
This approach, which provides the best electromagnetic compatibility and personnel
safety, can be used without restriction in plants with good potential equalisation.
In the case of plants without potential equalisation, a mains frequency (50 Hz) equalis-
ing current can flow between two grounding points, which in unfavorable cases, e.g.
when it exceeds the permissible shield current, may destroy the cable.
To suppress the low frequency equalising currents on systems lacking potential equal-
isation, therefore we recommend that you connect the cable shield directly to the build-
ing ground (or protective ground conductor) at only one end and to use capacitive cou-
pling to connect it to all other grounding points.
Further information
General information and further notes regarding the wiring can be found in the Operat-
ing Instructions BA 198F/00/en “Field communications - PROFIBUS-DP/-PA: Guides for
project planning and commissioning”.

2 Wiring Promag 50 PROFIBUS-PA
10 Endress+Hauser
2.2 Connecting the measurement device
2.2.1 Connecting the transmitter

Warning:
•Risk of electric shock. Switch off the power supply before opening the device.
Do not install or wire the device while it is connected to the power supply. Failure to
comply with this precaution can result in irreparable damage to the electronics.
•Risk of electric shock. Connect the protective conductor to the ground terminal on the
housing before the power supply is applied (not necessary if the power supply is gal-
vanically isolated).
•Compare the specifications on the nameplate with the local voltage supply and fre-
quency. The national regulations governing the installation of electrical equipment
also apply.
Procedure → Fig. 1, Fig. 2
1. Remove the cover of the connection compartment (f) from the transmitter housing.
2. Feed the power-supply cable (a) and PROFIBUS cable (b) through the appropriate
cable entries.

Note:
The Promag 50 can also be supplied with the option of a ready-mounted fieldbus
connector. More information on this can be found on Page 13.
3. Connecting the cables:
–Wiring diagram (aluminium and stainless steel housings) → Fig. 1
–Wiring diagram (wall-mount housing) → Fig. 2

Caution:
–The PROFIBUS cable can be damaged!
If the shielding of the cable is grounded at more than one point in plants without
additional potential equalisation, mains frequency equalising currents can occur
that damage the cable or the shielding.
In such cases the shielding of the cable is to be grounded on only one side, i.e.
it must not be connected to the ground terminal of the housing. The shield that is
not connected should be insulated!
–We recommend that the PROFIBUS not be looped using conventional cable
glands. If you later replace even just one measuring device, the bus communica-
tion for the entire bus will have to be interrupted.

Note:
–The terminals for the PROFIBUS-PA connection (26/27) have an integral polarity
protection. This ensures correct signal transmission via the fieldbus even if lines
are confused.
–Conductor cross-section: max. 2.5 mm2
–Observe the plant's grounding concept.
4. Screw the cover of the connection compartment (f) firmly back onto the transmitter
housing.

Promag 50 PROFIBUS-PA 2 Wiring
Endress+Hauser 11
Fig. 1: Connecting the transmitter (field housing), conductor cross-section: max. 2.5 mm2
A = Aluminium field housing
B = Stainless steel field housing
a Cable for power supply: 85...260 V AC, 20...55 V AC, 16...62 V DC
Terminal No. 1: L1 for AC, L+ for DC
Terminal No. 2: N for AC, L−for DC
b PROFIBUS-PA cable
Terminal No. 26: PA+
Terminal No. 27: PA –
c Ground terminal for protective conductor
d Ground terminal for signal-cable shield
e Service adapter for connecting service interface FXA 193 (FieldCheck™, FieldTool™)
f Cover of the connection compartment
g Clamp
b
b
c
d
a
a
27
25
23
21
2
1
26
24
22
20
L1 (L+)
PA(+)
N (L-)
PA( –)
g
f
e
f
b
a
A
B
F06-50xPBxxx-04-06-xx-xx-000

2 Wiring Promag 50 PROFIBUS-PA
12 Endress+Hauser
Fig. 2: Connecting the transmitter (wall-mount housing), conductor cross-section: max. 2.5 mm2
a Cable for power supply: 85...260 V AC, 20...55 V AC, 16...62 V DC
Terminal No. 1: L1 for AC, L+ for DC;
Terminal No. 2: N for AC, L−for DC
b PROFIBUS-PA cable:
Terminal No. 26: PA+
Terminal No. 27: PA –
c Ground terminal for protective conductor
d Ground terminal for signal-cable shield
e Service adapter for connecting service interface FXA 193 (FieldCheck™, FieldTool™)
f Cover of the connection compartment power supply for external termination (see Fig. 1)
2.2.2 Terminal assignment
Order variant Terminals no. (outputs/inputs)
26: PA+ / 27: PA –
50***-***********WPROFIBUS-PA
50***-***********PPROFIBUS-PA
50***-***********HPROFIBUS-PA
Connected load PROFIBUS-PA
Vi= 30 VAC; Ii= 500 mA; Pi= 5.5 W; Li= 10.0 µH;
Ci=5.0nF
12
cd
e
a
ab b
222320 21 2425 26 27
f
PA (+)
PA (–)
L1 (L+)
N (L–)
F06-50xPBxxx-04-03-xx-xx-000

Promag 50 PROFIBUS-PA 2 Wiring
Endress+Hauser 13
2.2.3 Fieldbus connector
The connection technology of PROFIBUS-PA allows measuring devices to be con-
nected to the fieldbus via uniform mechanical connections such as T-boxes, junction
boxes, etc. This connection technology using prefabricated distribution modules and
plug-in connectors offers substantial advantages over conventional wiring:
•Field devices can be removed, replaced or added at any time during normal opera-
tion. The communications will not be interrupted.
•This simplifies installation and maintenance significantly.
•Existing cable infrastructures can be used and expanded instantly, e.g. when con-
structing new star distributors using 4-channel or 8-channel junction boxes.
The Promag 50 can therefore be supplied with a ready-mounted fieldbus connector.
Fieldbus connectors for retrofitting can be ordered from E+H as a spare part.
Fig. 3: Connectors for connecting to the PROFIBUS-PA
A = Aluminium field housing
B = Stainless steel field housing
C = Protective cap for connector
D = Fieldbus connector
E = Adapter PG 13.5 / M 20.5
F = Connector on housing (male)
G = Connector (female)
Pin assignment / color codes:
1 = Brown wire: PA+ (Terminal 26)
2 = Not connected
3 = Blue wire: PA –(Terminal 27)
4 = Black wire: Ground (Notes about connection)
5 = Female contact in the center not connected
6 = Positioning groove
7 = Positioning mark
34
150/300 mm
45.0 mm
(1.766")
PG 13.5
M 12 x 1
21
B
C D E
4
12
F
G
3
5
6
7
A
F06-xxxPBxxx-04-xx-xx-xx-000

2 Wiring Promag 50 PROFIBUS-PA
14 Endress+Hauser
Technical data (connector):
Conductor size 0.75 mm2
Connector thread PG 13.5
Degree of protection IP 67 in accordance with DIN 40 050 IEC 529
Contact surface CuZnAu
Housing material Cu Zn, surface Ni
Flammability V - 2 in accordance with UL - 94
Operating temperature –40...+85 °C
Ambient temperature –40...+150 °C
Nominal current per contact 3 A
Nominal voltage 125...150 V DC in accordance with the VDE standard 0110/ISO Group 10
Comparative tracking KC 600
Volume resistance ≤8 mΩin accordance with IEC 512 Part 2
Dialectric resistance ≤ 1012 Ωin accordance with IEC 512 Part 2

Promag 50 PROFIBUS-PA 2 Wiring
Endress+Hauser 15
2.3 Electrical connection check
Perform the following checks after completing electrical installation of the measuring
device:
Device condition and specifications Notes
Are cables or the device damaged (visual inspection)? −
Electrical Connection Notes
Does the supply voltage match the specifications on the nameplate? 85...260 V AC (45...65 Hz)
20...55 V AC (45...65 Hz)
16...62 V DC
Do the cables comply with the specifications? see Operating Instructions
page 47
Do the cables have adequate strain relief? −
Are the cables correctly segregated by type?
Without loops and crossovers?
−
Are the power-supply and signal cables correctly connected? see the wiring diagram
inside the cover of the
terminal compartment
Are all screw terminals firmly tightened? −
Have the measures for grounding/potential equalisation been correctly
implemented?
see Operating Instructions
pages 53 ff
Are all cable entries installed, firmly tightened and correctly sealed?
Cables looped as “water traps”?
see Operating Instructions
page 56
Are all housing covers installed and firmly tightened? −
Electrical connection – PROFIBUS-PA Notes
Are all the connecting components (T-boxes, junction boxes, connec-
tors, etc.) connected with each other correctly?
–
Has each fieldbus segment been terminated at both ends with a bus
terminator?
–
Has the max. length of the fieldbus cable been observed in accordance
with the PROFIBUS specifications?
see Page 7
Has the max. length of the stubs been observed in accordance with the
PROFIBUS specifications?
see Page 8
Is the fieldbus cable fully shielded and correctly grounded? see Page 8

2 Wiring Promag 50 PROFIBUS-PA
16 Endress+Hauser

Promag 50 PROFIBUS-PA 3 Operation
Endress+Hauser 17
3 Operation
3.1 Operation at a glance
You have a number of options for configuring and commissioning the device:
1. Local display (Option) → Page 18
The local display enables you to read all of the important parameters directly at the
measuring point, configure device-specific parameters in the field and commission the
instrument.
2. Configuration program → Page 28
The configuration of profile and device-specific parameters is primarily done via the
PROFIBUS-PA interface. You can obtain special configuration and operating programs
from the various manufacturers for these purposes.
3. Jumpers and miniature switches (for hardware settings) → Page 36
You can make the following hardware settings for the PROFIBUS-PA using jumpers or
miniature switches on the I/O board:
•Set the device bus address
•Switch the hardware write protection on or off
Fig. 4: Options for operating the Promag 50 PROFIBUS-PA
1 Configuration / operation programs for operating the device via the PROFIBUS-PA
2 Jumpers or miniature switches for hardware settings (write protection, device address)
3 Local display for the operation of the device in the field (option)
1
2
3
E
- +
F06-xxxPBxxx-19-xx-xx-xx-000

3 Operation Promag 50 PROFIBUS-PA
18 Endress+Hauser
3.2 Operation via the local display
3.2.1 Display and operating elements
The local display enables you to read all important parameters directly at the measuring
point and also configure the device.
The display consists of two lines; this is where measured values and/or status variables
(direction of flow, empty pipe, bar graph, etc.) are displayed. You can change the
assignment of display lines to variables at will in order to customise the display to suit
your needs and preferences (→see the “Description of Device Functions”manual).
Fig. 5: Display and operating elements
Liquid-crystal display (1)
The backlit, two-line liquid-crystal display shows measured values, dialog texts, error messages and informa-
tion messages. The display is referred to as being in the HOME position (operation mode) during normal
measurement operation.
Upper line: Presentation of the main measured values, e.g. volume flow rate in [ml/min] or in [%].
Lower line: Presentation of additional measured values or status information, e.g. totalizer state in [m3],
bar graph display, tag names
Plus / Minus keys (2)
–Enter numerical values, select parameters
–Select different function groups within the function matrix
Press the +/−keys simultaneously to trigger the following functions:
–Exit the function matrix step by step →HOME position
–Press and hold down +/−keys for longer than 3 seconds →Return directly to HOME position
–Cancel data entry
Enter key (3)
–HOME position →Entry into the function matrix
–Save the numerical values you input or settings you change
Esc
E
+
-
1
32
+48.25 ml/min
+3702.6 m3
F06-50xxxxxx-07-xx-xx-xx-000

Promag 50 PROFIBUS-PA 3 Operation
Endress+Hauser 19
3.2.2 Brief description of the function matrix

Note:
•See the general notes on Page 20.
•Function descriptions →see the “Description of Device Functions”manual
1. HOME position →
 →Enter the function matrix
2. Select a function group (e.g. OPERATION)
3. Select function (e.g. LANGUAGE)
Change parameter / enter numerical values:
 key →Select or enter release code, parameters, counter values
 key →Save the entries
4. Exit the function matrix:
–Press and hold down Esc key (
 ) for longer than 3 seconds →HOME position
–Repeatedly press Esc key (
 )→return step by step to HOME position
Fig. 6: Selecting functions and configuring parameters (function matrix)
F06-x0xxxxxx-19-xx-xx-xx-000

3 Operation Promag 50 PROFIBUS-PA
20 Endress+Hauser
General notes
Only a few parameters must be entered for the commissioning (see Commissioning
Page 40). Complex measuring operations on the other hand necessitate additional
functions that you can configure as necessary and customize to suit your process
parameters. The function matrix, therefore, comprises a multiplicity of additional func-
tions which, for the sake of clarity, are arranged in function groups.
Comply with the following instructions when configuring functions:
•You select functions as described on Page 19.
•You can switch off certain functions (OFF). If you do so, related functions in other
function groups will no longer be displayed.
•Certain functions prompt you to confirm your data entries. Press  to select “SURE
[ YES ]”and then confirm with
 . This saves your setting or starts a function, as
applicable.
•Return to the HOME position is automatic if no key is pressed for 5 minutes.
•Programming mode is disabled automatically if you do not press a key within
60 seconds following automatic return to the HOME position.

Note:
•The transmitter continues to measure while data entry is in progress, i.e. the current
measured values are output via the signal outputs in the normal way.
•If the power supply fails, all preset and parameterised values remain safely stored in
the EEPROM.

Caution:
All of the functions are described in detail, including the function matrix itself, in the
“Description of Device Functions”manual, which is a separate part of the Operating
Instructions!
Enabling the programming mode
The function matrix can be disabled. Disabling the function matrix rules out the possi-
bility of inadvertent changes to device functions, numerical values or factory settings.
You must first enter a numerical code (factory setting = 50) before you can change the
settings. If you use a code number of your choice, you exclude the possibility of unau-
thorised persons accessing data (→see the “Description of Device Functions”
manual).
Comply with the following instructions when entering codes:
•If programming is disabled and the  keys are pressed in any function, a prompt
for the code will appear automatically on the display.
•If “0”is entered as the customer's code, programming is always enabled.
•The E+H service organisation can be of assistance if you mislay your personal code.

Caution:
Changing certain parameters such as all sensor characteristics, for example, influences
numerous functions of the entire measuring system, particularly measuring accuracy.
There is no need to change these parameters under normal circumstances and conse-
quently, they are protected by a special code known only to the E+H service organisa-
tion. Please contact Endress+Hauser if you have any questions.
Disabling the programming mode
Programming will be disabled again if you do not press a key within 60 seconds follow-
ing a return to the HOME position.
You can also disable programming in the “ACCESS CODE”function by entering any
number (other than the customer's code).