HBM MP85A Operating Manual
Operating Manual
English
MP85A Program Help
Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
64239 Darmstadt
Tel. +49 6151 803-0
Fax +49 6151 803-9100
info@hbm.com
www.hbm.com
DVS: a3387-1.1 HBM: public
12.2016
© Hottinger Baldwin Messtechnik GmbH
Subject to modifications.
All product descriptions are for general information only.
They are not to be understood as a guarantee of quality or
durability.
Contents
Contents Page
1 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 The MP85A measuring system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 What needs to be done?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.3 Setting up the hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.4 Firmware update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 SYSTEM settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1 General settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2 Using passcodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.3 Interface parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3 Prepare MP85A for your application. . . . . . . . . . . . . . . . . . . . . . . . 23
3.1 Setup of the measuring chain (MP85A and transducer). . . . . . . . . . . 23
3.1.1 Specifying a transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1.2 Adjusting the measuring chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.1.3 Signal conditioning (zero balance, low-pass filter) . . . . . . . . . . . . . . . 40
3.2 What needs to be considered when zero balancing and how long
does it take? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.3 How are the sample rate and filter settings connected?. . . . . . . . . . . 43
3.3.1 Transducer test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.3.2 What is the procedure for a transducer test and what needs to be
considered? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.4 Additional functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.4.1 Limit values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.4.2 Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.4.3 Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4 Settings for monitoring using tolerance windows . . . . . . . . . . . . 55
4.1 Principle procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.2 The Configure evaluation parameter window . . . . . . . . . . . . . . . . . . . 58
4.3 Control settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.3.1 Maximum measuring time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.3.2 Start conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
MP85A
a3387-1.1 en HBM: public 3
Contents
4.3.3 Stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.3.4 End conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
4.4 Alarm window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
4.5 Range window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.6 Test measurement (start measurement manually) . . . . . . . . . . . . . . . 74
4.7 Important information about tolerance windows . . . . . . . . . . . . . . . . . 76
4.8 Defining tolerance windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
4.8.1 Creating and modifying tolerance windows . . . . . . . . . . . . . . . . . . . . 80
4.8.2 Window active. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
4.8.3 Consider window result in total result . . . . . . . . . . . . . . . . . . . . . . . . . 82
4.8.4 Crossing window with min/max evaluation . . . . . . . . . . . . . . . . . . . . . 83
4.8.5 Crossing window with evaluation of the y mean . . . . . . . . . . . . . . . . . 83
4.8.6 Crossing window with evaluation of the x mean . . . . . . . . . . . . . . . . . 84
4.8.7 y limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
4.8.8 x limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.8.9 Block window (end window) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
4.8.10 Switch test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
4.8.11 Haptic test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
4.8.12 Evaluation in real time window option (online window). . . . . . . . . . . . 91
4.8.13 Consider window sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
4.8.14 Window option y coordinates relative . . . . . . . . . . . . . . . . . . . . . . . . . 99
4.8.15 Window option x coordinates relative to . . . . . . . . . . . . . . . . . . . . . . 101
4.8.16 Evaluation for entry and exit of window . . . . . . . . . . . . . . . . . . . . . . 104
4.8.17 Statistics and distribution (bin counting) . . . . . . . . . . . . . . . . . . . . . . 113
5 Monitoring with tolerance band: settings. . . . . . . . . . . . . . . . . . . 119
5.1 Principle procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
5.2 The Configure evaluation parameter window . . . . . . . . . . . . . . . . . . 122
5.3 Control settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
5.3.1 Maximum measuring time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
5.3.2 Start conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
5.3.3 Stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
5.3.4 End conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
5.4 Alarm window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
5.5 Range window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
4
a3387-1.1 en HBM: public MP85A
Contents
5.6 Test measurement (start measurement manually) . . . . . . . . . . . . . . 138
5.7 Defining a tolerance band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
6 Monitoring with envelope curve . . . . . . . . . . . . . . . . . . . . . . . . . . 143
7 Saving results, data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
7.1 Storage medium MultiMediaCard/SD Card (target MMC/SD Card
internal). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
7.2 Storage medium external (storage via CAN bus or Ethernet). . . . . . 148
7.3 Storage methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
7.4 Files to save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
7.5 File names and directories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
7.6 File formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
7.7 Save statistical data, statistical processing. . . . . . . . . . . . . . . . . . . . 157
8 SAVE/LOAD PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
9 MEASURE + VISUALIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
9.1 Display current values (measurement display) . . . . . . . . . . . . . . . . . 165
9.1.1 Possible error messages and instructions for correction . . . . . . . . . 168
9.1.2 What limitations apply for (transducer) scaling? . . . . . . . . . . . . . . . . 171
9.2 Measurement curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
9.3 Results of the last measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
9.4 Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
9.4.1 3D graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
9.4.2 Distribution (bin counting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
9.5 Retrieve saved data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
9.6 Files on MMC/SD Card (copy to/from PC) . . . . . . . . . . . . . . . . . . . . 183
10 Plus tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
11 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
11.1 Change log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
11.2 Display connection loss detection. . . . . . . . . . . . . . . . . . . . . . . . . . . 187
12 FAQ: Questions and answers about MP85A and PME
Assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
12.1 How do I adjust the interface on the MP85A?. . . . . . . . . . . . . . . . . . 189
12.2 How do I set the IP address on my PC? . . . . . . . . . . . . . . . . . . . . . . 192
MP85A
a3387-1.1 en HBM: public 5
Contents
12.3 How do I connect the PME Assistant to the MP85A? . . . . . . . . . . . . 195
12.4 How do I recognize the file system on my PC and which should
I use? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
12.5 How do the options in the start window of the PME Assistant
work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
12.6 What happens when connecting additionally to an existing
Ethernet connection? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
12.7 Requirements for MMC/SD Cards . . . . . . . . . . . . . . . . . . . . . . . . . . 200
12.8 How are the sample rate and filter settings connected?. . . . . . . . . . 201
12.9 What does the data reduction do and how do I set it up?. . . . . . . . . 201
12.10 What possibilities are there to start, stop and end the
measurement? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
12.11 How do I work when setting up the evaluation criteria? . . . . . . . . . . 219
12.12 What needs to be considered when zero balancing and how
long does it take? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
12.13 What is the procedure for a transducer test and what needs to
be considered? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
12.14 What limitations apply for (transducer) scaling? . . . . . . . . . . . . . . . . 222
12.15 What has to be considered with parameter set switching?. . . . . . . . 223
12.16 How to determine changes to the device settings? . . . . . . . . . . . . . 224
12.17 Which error messages exist for the measuring/the process
status and how can I correct errors?. . . . . . . . . . . . . . . . . . . . . . . . . 224
12.18 What do the error messages with tolerance window violation
mean? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
12.19 What do the LEDs on the MP85A mean? . . . . . . . . . . . . . . . . . . . . . 234
12.20 What should be observed when saving process data, curves or
process results? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
12.21 How does the timing diagram for a process-optimized
measurement look like? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
12.22 How does the timing diagram for a measurement with no data
loss look like? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
12.23 How can a digital output be set?. . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
12.24 How do I create a protocol printout of a process? . . . . . . . . . . . . . . 240
12.25 How to transfer all MP85A settings to another device (cloning)? . . . 241
6
a3387-1.1 en HBM: public MP85A
Contents
12.26 How do I carry out a firmware update and can the update be
prevented? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
12.26.1 Download firmware update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
12.26.2 How to update the firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
12.27 What does a tolerance band look like? . . . . . . . . . . . . . . . . . . . . . . . 243
12.28 What does an envelope curve look like? . . . . . . . . . . . . . . . . . . . . . 244
12.29 What is TEDS? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
13 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
MP85A
a3387-1.1 en HBM: public 7
Contents
8
a3387-1.1 en HBM: public MP85A
1 Quick start
The help for the PME Assistant consists of three
parts:
• The general PME Assistant Online Help.
• The help for the devices MP01, MP30, MP55, MP60
• This document on the MP85A.
1.1 The MP85A measuring system
The MP85A measuring system comprises the PME Assistant program and the PME MP85A or MP85A DP hardware. The MP85A DP is provided with a PROFIBUS interface in addition to the CAN bus and Ethernet interface.
The mode of operation is however the same. The device
parameters must be set either via the CAN bus or the
Ethernet interface for both systems. If you have an older
MP85, please use the PME Assistant provided for this
device (up to Version 2.2).
Quick start
and MP70 of the PME family.
MP85A
The MP85A can be used for two different monitoring operations:
1. Monitoring a process with verification of a certain process curve using tolerance windows.
The measured values are checked at different points
by the MP85A to see whether the sequence lies within
a certain range (tolerance window).
2. Monitoring a process for adherence to a tolerance
band or envelope curve.
a3387-1.1 en HBM: public 9
Quick start
Starting with firmware version 2.22 the limit value results
can be included into the OK/NOK evaluation with all monitoring methods.
There is also Version MP85A-S for switch and haptic test
with tolerance windows. However tolerance band monitoring is not possible with these devices.
You can find more information about MP85A, e.g. measurement sequence, the data reduction function or the
relation between the filters used and sample rate, in section FAQ: MP85A and PME Assistant
.
1.2 What needs to be done?
The following steps must be performed in order to prepare
the MP85A measuring system for a measurement. The
steps can be divided into two sections.
1.
Setting up the hardware: connect transducer (sensor),
set up bus system or interface, connect power supply
etc.
10
This part of the setup is described in detail in
the MP85A Operating Manual. This online
Help comprises only a summary.
2. Setting up the device via PME Assistant software.
Set up the device using this software and a PC which
is connected to the MP85A via CAN bus or Ethernet
interface as described in this Help.
Procedure
1. Start the PME Assistant, see also PME Assistant
Online Help: Start options.
a3387-1.1 en HBM: public MP85A
Quick start
2. Connect to the MP85A, see How do I connect the
PME Assistant to the MP85A?.
3. Define the MP85A system settings: Select the
guage, set the synchronization if using more than one
device and, if required, set the
4.
Setup of the measuring chain (MP85A and transducer).
5. Determine and enter the start and evaluation criteria
for the process: depending on the evaluation mode
either for
See also
6.
Specify the necessary outputs (process results).
7.
Save all parameters.
The structure of the MP85A settings tree in the left-hand
side of the program window corresponds to the sequence
in which you should carry out the settings.
Tolerance windows or Tolerance band.
EASYteach for envelope curves.
passcode.
lan-
MP85A
If these steps have already been performed, the data can
be loaded from a file into the device, see
PARAMETERS.
See also The MP85A measuring system
1.3 Setting up the hardware
This section is described in detail in the MP85A Operating
Manual. To summarize:
• Connect the transducers.
• Connect the power supply.
a3387-1.1 en HBM: public 11
SAVE/LOAD
Quick start
• Connect the bus system and set parameters
(addresses and transmission speed, etc.) if necessary. Because some of these settings are important
for the program function, you will also find the most
important settings described in Configuring the
MP85A interface(s).
• Check the (hardware) synchronization if several
devices are involved.
• Install the software on the PC, see also PME Assis-
tant Online Help: Operating requirements and PME
Assistant Online Help: Installation of software PME
Assistant.
The first channel is always displayed as the x channel
(horizontal axis) and the second as the y channel (vertical
axis) in the graphs. Please connect the transducers suitably so that a correct display of y(x) is achieved.
12
1.4 Firmware update
You update the firmware using the program PME-Update.
With the program a new firmware version can also be
transferred to several devices simultaneously.
With the MP85A process controller, in order to avoid interfering with the running of a process (no measurement or
evaluation is carried out during an update), from firmware
version 2.22 you can specify that the firmware is updated
only after manual confirmation on the device (F-update:
allowed!). If confirmation does not occur within 15 minutes, then no change to the firmware is made.
Refer also to
General settings (basic settings).
a3387-1.1 en HBM: public MP85A
Quick start
The device settings are also retained when updating the
firmware. However, we recommend a backup is carried
out before the update; refer to Store settings and system
parameters saved on the PC (backup).
MP85A
a3387-1.1 en HBM: public 13
Quick start
14
a3387-1.1 en HBM: public MP85A
2 SYSTEM settings
2.1 General settings
For passcodes see the separate section Using the pass-
code.
The general settings are identical for all parameter sets.
SYSTEM settings
Some details in the SYSTEM
are for information only, e.g. hardware revision or device
serial number. Besides that, you can carry out the following settings:
Language
Next to Sprache (or Language or Langue), if English is
not set, select the desired language. Normally, the language version of the PME Assistant determines the language of the MP85A, i.e. when you start the German version of the Assistant, all menus and texts are also in
German.
General settings section
After choosing a different language, all the windows are
refreshed and formed anew. The language of the main
menu (at the top in the window) as well as of the messages output by the program are however dependent on
the language version of the program, PME Assistant, and
are not changed.
Device name
Use the device name to improve the identification of a
device in a group of several PMEs.
MP85A
a3387-1.1 en HBM: public 15
SYSTEM settings
In the menu Data storage the option Keep device name
The device name does not affect the operation of the
device.
on parameter change specifies that when loading a
parameter set the device name is retained, i.e. it is not
overwritten by the name saved in the parameter set.
Date/time
The date and time are only used for saving the results.
The displayed time corresponds to that at the last window
update, e.g. on calling the dialog. Therefore an exclamation point is displayed behind the time. The entered time is
sent to the PME, when, after making a change, you quit
the entry field by either clicking another field or pressing
.
Hardware synchronization
You have to carry out this setting if you are using more
than one device. In this case you set one device as the
Master and all others as Slave. This prevents the carrier
frequency measuring amplifiers of the individual devices
interfering with one another over transducer cables that
run parallel. However, only the measuring amplifiers are
synchronized, not, say, the CAN bus interfaces or similar
functions. You will find further information on this topic in
the MP85A operating manual.
16
Firmware update only possible after release on the
device
Here you define whether a firmware update may always
take place or only when it has been confirmed on the
device itself. This means that you can inhibit a firmware
a3387-1.1 en HBM: public MP85A
SYSTEM settings
update from starting via the network for all devices, e.g. in
a running process (during an update no measurement or
evaluation occurs). The update is then only executed after
manual confirmation on the device (F-Update: Per-
mitted!). If the confirmation does not occur within 15 minutes, then no change to the firmware is made.
2.2 Using passcodes
A passcode can be set, thus allowing you to block unauthorized access. This is a number. Letters are not allowed
therefore we use the word passcode, not password.
If you have forgotten your passcode, use the master passcode 1702, to reset the system and to allow you to enter a
new passcode.
Menu commands and dialogs can be permanently
blocked from the EASYsetup
module. If you do not have one of the entries listed in this
Help, then the MP85A has been configured specially for
you.
(FASTpress Suite) program
MP85A
Prepare passcode usage (activate)
The passcode must first be defined under SYSTEM
General settings and the field Specify passcode. Turn
on the function with Activate passcode?
Yes. When-
ever you then start the PME Assistant program, you will
only be able to access the menu command SYSTEM
Passcode entry and the MEASURE + VISUALIZE menu
items.
a3387-1.1 en HBM: public 17
SYSTEM settings
Use SYSTEM General settings and Reactivate passcode to hide all passcode protected menu items and dia-
logs. If those menus shall be accessed again, a new
passcode entry has to be made.
Passcode entry
If the MP85A is protected by a passcode, you can only
access this menu item and menu MEASURE + VISU-
ALIZE. The correct passcode must be entered before you
can access all other menus. If still some menus are
missing, your MP85A is customized with program module
Assistant configuration.
2.3 Interface parameters
The dialog displays the parameters for the interfaces
installed, e.g. also the MAC address of the Ethernet interface. Most settings can only be changed on the device
itself, see
With CAN bus the output rate (in multiples of 0.1 ms) and
the format for PDO messages (cyclic PDOs) can be set in
the dialog. The cyclic PDOs must however be started with
an interface command.
With an MP85ADP (with PROFIBUS option) you can set
the PROFIBUS address.
When using Ethernet you may also specify here a
gateway address. Use IPGatew1 to IPGatew4 to type in
the four parts of the gateway IP address. Gateways are
used, for example, to be able to reach other IP segments
or to send data via other protocols (network types).
Configuring the MP85A interface(s).
18
a3387-1.1 en HBM: public MP85A
SYSTEM settings
See also Options, Display connection loss detection.
You can find the interface commands in the MP85A Operating Manual “Interface Description CAN/Profibus/Ethernet”.
Configuring the MP85A interface(s)
Ethernet interface
Parameterization can only be carried out manually; in the
PME Assistant the parameters for the interface are only
displayed. The PME Assistant software must not be connected to the MP85A over this interface during configuration.
On the MP85A enter the Ethernet address (IP address)
and the subnet mask. Operation with dynamic addresses
(DHCP) is not possible. You should clarify with your network administrator which IP address (Ethernet address)
and subnet mask you have to set. If you only want to
establish a direct link between a PC and the MP85A, you
can use any address, e.g. 192.168.169.xxx. The last
group of three figures (xxx) must be a number between 1
and 254 and different for the PC and the MP85A. Make
sure in this case that your PC can switch over the
Ethernet connection to a direct link or use a "crossover
cable" (not a normal Ethernet cable).
MP85A
Setting the address and subnet mask on the MP85A:
1. Press the SET key for at least two seconds.
The display CAN BUS appears.
2. Press the + key until ETHERNET appears in the display.
a3387-1.1 en HBM: public 19
SYSTEM settings
3. Press the SET key.
The MAC address is displayed.
4. Press the + key so that the first group of the IP
address appears.
5. Press SET to be able to change the value with + or -.
Otherwise press + to proceed to the next group.
6. If you have changed a number, press the SET key.
7. After the display of the IP address you come to the
display of the subnet mask. Change this according to
your requirements.
8. To save the changes press the SET key for at least
two seconds.
The flashing display Save? appears.
9. Confirm it by pressing SET.
In the second line a flashing double arrow and the text
Yes appear.
10. Confirm this query also by pressing SET.
20
CAN bus interface
You can only change most parameters manually; the PME
Assistant software must not be connected to the MP85A
over this interface during configuration. Terminate the program if necessary.
You do not need to terminate or close the online help
when you terminate the PME Assistant software.
Setting the baud rate on the MP85A
1. Press the SET key for at least two seconds.
The display CAN BUS appears.
a3387-1.1 en HBM: public MP85A
SYSTEM settings
2. Press the SET key again.
The baud rate display appears together with the cur-
rently set value.
3. Press the SET key once again.
A flashing double arrow appears on the left in front of
the display of the current baud rate.
4. Press the + or - keys to change the value.
5. When the desired figure appears in the display, press
the SET key.
6. Now press the SET key for at least two seconds.
The flashing Save? display appears.
7. Confirm it by pressing SET.
In the second line a flashing double arrow and the text
Yes appear.
8. Confirm this query also by pressing SET.
PROFIBUS interface (only with MP85ADP)
MP85A
In the PME Assistant only the PROFIBUS address can be
set. All other PROFIBUS system parameterization is carried out via appropriate software from other manufacturers, e.g. PROFIBUS software from Siemens.
a3387-1.1 en HBM: public 21
SYSTEM settings
22
a3387-1.1 en HBM: public MP85A
Prepare MP85A for your application
3 Prepare MP85A for your application
All parameters can also be loaded from a file into the
MP85A with SAVE/LOAD PARAMETERS
PC.
Before you can start a measurement, you must enter,
measure or read out the relevant transducer data from
TEDS. Then define the criteria for the process monitoring
and define the values to be output or saved (
window settings or Tolerance band settings).
See also LOAD PARAMETERS, Hardware synchroniza-
tion, Display current values
3.1 Setup of the measuring chain (MP85A
and transducer)
Transducers with TEDS
Load from
To le r an c e
MP85A
For transducers with TEDS it is usually sufficient if you go
to PREPARE MEASUREMENT
and activate the options Find and use TEDS on device
restart and Find and use TEDS during operation of
device. After restarting the MP85A (switch power supply
off and on again), a search will be made for transducers
with TEDS. They will be activated if found. If you cannot
restart or if no full bridge, half bridge or LVDT transducer
is connected, click on Find and use TEDS, see also
Using TEDS.
a3387-1.1 en HBM: public 23
Amplifier TEDS
Prepare MP85A for your application
Transducers without TEDS
If you do not have a TEDS transducer, carry out the following steps to set up and adjust the measuring chain:
1. Enter type of transducers (sensors) used.
2. Enter measuring range, unit and required number of
places after the decimal point.
3. Calibrate and adjust the measuring chain.
4. Enter other measuring parameters, e.g. low pass filter.
5. Check that the measuring chain is functioning correctly.
Different menus are used for these tasks. The easiest way
is to go through these one at a time and make the relevant
adjustments. Two different procedures may be used to
adjust the measuring chain (step 3). These can be
accessed from the Enter characteristic or Measure
characteristic menus. The two procedures together with
their advantages and disadvantages are described in
Adjusting the measuring chain.
24
No process (no measurement) is started as long as a
transducer error is present and the MP85A is not capable
of measuring.
You can find more information about MP85A, e.g. working
speed, the data reduction function or the relation between
the filter used and sample rate in section
and PME Assistant.
See also LOAD PARAMETERS, Display current values,
FAQ: Meaning of the LEDs on the MP85A
a3387-1.1 en HBM: public MP85A
FAQ: MP85A
Prepare MP85A for your application
3.1.1 Specifying a transducer
If you have activated the options Find and use TEDS
when restarting devices or Find and use TEDS in running operation in one channel using PREPARE MEA-
SUREMENT
ually select the transducer type in any of the channels. If
required, deactivate these options to be able to make a
selection and then activate them again.
Depending on the type of transducer, you must provide
details in the Transducer dialog for the general amplifier
settings in the MP85A.
Label the channels using names. They are shown in all
other dialogs and simplify assignment.
The channel names must not include the special characters <, >, / or \.
Amplifier TEDS, you cannot then man-
MP85A
In this dialog only the basic values for the (maximum pos-
sible) measurement range are set. The details for the
actual scaling, i.e. the assignment between the actual
reading and the displayed physical quantity is set via the
scaling; refer to
acteristic .
The required data can be found on the data sheets for the
relevant transducers. Some examples of the possible
selections are listed in the following.
a3387-1.1 en HBM: public 25
Set characteristic curve or Measure char-
Prepare MP85A for your application
Full bridge
Strain-gauge transducers for force, pressure or weight are
full bridges and require a measuring range of at least
2mV/V: setting 4mV/V. Instead of strain-gauge trans-
ducers, piezoresistive transducers are also used for larger
measuring ranges. In cases of doubt check the details in
the transducer data sheet.
Half bridge
Inductive displacement transducers are typical transducers in the half-bridge configuration. Usually, they
require a measuring range of 80 mV/V at a supply voltage
of 2.5 V: setting 100 mV/V. Newer displacement trans-
ducers can also be operated in a full-bridge circuit; in this
case choose this setting, because better interference suppression is obtained. Inductive transducers can however
also operate according to the LVDT principle (Linear Vari-
able Differential Transformer); here it is essential to use
the LVDT setting for this transducer type. Usually, you
need a measuring range of 1 V/V for LVDT transducers.
We recommend that the
this type of transducer.
characteristic is measured for
26
Potentiometer
Potentiometer types of transducer are often used for the
measurement quantities of displacement and angle. A
measuring range of 1 V/V is set automatically for these
transducers (fix); internally, the MP85A uses the same
circuit as for half bridges.
We recommend that the
characteristic is measured for
this type of transducer.
a3387-1.1 en HBM: public MP85A
Prepare MP85A for your application
LVDT
The LVDT principle (Linear Variable Differential Trans-
former) is often used for inductive displacement transducers where the measuring ranges are 500 mV/V up to
1V/V. However, displacement transducers with a half
bridge and output signals below 100 mV/V are also
common, so check the details in the data sheet.
10 V
You can, for example, also connect active transducers via
this input. The measuring range is permanently set to
10 V (fix).
Pulse generator
Pulse generators (pulse counters) or incremental transducers are transducers which facilitate the acquisition of,
for example, a rotational speed via a digital signal. If two
digital signals are available, you can also measure, e.g.
rotational speed and rotational direction. If the transducer
has an output for the zero index (z channel, home position), then you can also calculate the rotated angle. Since
all edges are evaluated with this transducer type, a correct conversion must follow using the subsequently
defined scaling (refer to
or deactivate the rotational direction and zero index
depending on the transducer and connection you are
using.
Set characteristic curve). Activate
MP85A
The measurement of frequency is not possible.
a3387-1.1 en HBM: public 27
Prepare MP85A for your application
SSI generator
For transducers with the SSI interface (Synchronous
Serial Interface) you have to set the coding used (stan-
dard: Gray code), the resolution used and the transfer
speed. Multi-turn shaft encoders (many revolutions can be
measured) usually use 24 or 25 bits to code the position,
whereas single-turn transducers normally use only 12 or
13 bits. The transfer speed mainly depends on the length
of the cable to the transducer. The maximum baud rate of
1000 kbaud can only be used up to a total length of
200 m. Please check the admissible values for your transducer (see transducer data sheet).
With transducers with the SSI interface the measurement
is always read out 1200 times per second by the MP85A
in response to an acceptance signal sent to the transducers.
Time
28
Instead of a transducer you can also define time as a
transducer type (y(t) plots). In this case only one channel
is monitored over time and used for the evaluation.
For the Decimal point you can specify the number of displayed decimal places, but the resolution of the measure-
ments is not affected by this.
The number of decimal places set here is also used for
the output in INTEGER format via the interface.
You define the physical unit via Unit. If you are using a
TEDS transducer, you can define via PREPARE MEA-
SUREMENT
the unit included in the TEDS is to be used. However, the
unit must in this case be convertible, otherwise you
Amplifier TEDS that this unit and not
a3387-1.1 en HBM: public MP85A
Prepare MP85A for your application
receive the TEDS error "Unit conversion not possible."
Therefore, you can, for example, convert Pa (pascal) into
bar or psi, but not N (newton) into mm (millimeter).
For active transducers, incremental transducers or trans-
ducers with the SSI interface the supply can be provided
via the MP85A (5 V) or an external power supply unit (10
… 30 V). The setting is made using a switch in the device;
further information on this can be found in the MP85A
operating manual.
3.1.2 Adjusting the measuring chain
If you have activated the options Find and use TEDS on
device restart or Find and use TEDS during operation
of device for one channel using PREPARE MEASURE-
MENT
the characteristic for any channel. If necessary, deactivate
these options to be able to carry out an adjustment and
then reactivate them.
Amplifier TEDS, you can no longer measure
MP85A
If you are carrying out these settings for the first time,
please see the information given in section
and comparison of the procedures. Experienced users
can go straight to one of the two procedures.
See also Status information and FAQ: Possible error mes-
sages and instructions for correction
a3387-1.1 en HBM: public 29
Introduction
Prepare MP85A for your application
3.1.2.1 Introduction and comparison of the proce-
dures
Transducers with linear characteristic must be used for all
procedures, i.e. transducers where the input quantity
(physical), e.g. force, and the output quantity (electrical),
e.g. mV/V, show a linear connection. In other words: for
linear force sensors, the outgoing signal is twice as high
when the force is double. Non-linear transducers are, for
example, thermo-elements. Here, the outgoing signal is
not twice as high when the temperature is double. As
soon as a linear behavior is true (as is the case for most
transducers), the adjustment is simplified to the definition
of a straight line, the characteristic (curve) of the sensor.
The values required are called the transducer character-
istic and must be entered so that the measured physical
force, displacement, angle quantities, etc. can be displayed correctly. The characteristic can be established
either from a calibration protocol or data sheet (nominal
values) or determined from a measurement.
The measured value can only be displayed in physical
units with the help of this assignment “which display
should appear for which measured value”. Three procedures can be used to determine this assignment:
1. Using a transducer with TEDS module
The data from the transducer calibration is saved in
the TEDS module.
Advantage: You only need to activate the correspond-
ing options in the TEDS menu, the other settings will
be carried out automatically; incorrect settings are excluded.
Disadvantage: Errors caused by improper installation
of the transducer are not recognized. For example, a
30
a3387-1.1 en HBM: public MP85A
Loading...