Lauda LRZ 921 User manual

Interface moduleLRZ921
Ethernet USB module
Operation manual
V2R4 Read this manual prior to performing any task!

Replaces issue V1R45
Translation of the original operation manual
Manufacturer:
LAUDA DR. R. WOBSER GMBH & CO. KG
Laudaplatz 1
97922 Lauda-Königshofen
Germany
Telephone: [phone]
E-mail: [email protected]
Internet: https://www.lauda.de
Q4DA-E_13-017, 2, en_US 09/18/2023©LAUDA 2021
V2R4Interface module LRZ 9212 / 39

Table of contents
1 General................................................................................................................................................................................... 5
1.1 Intended use................................................................................................................................................................... 5
1.2 Compatibility.................................................................................................................................................................. 5
1.3 Technical changes.......................................................................................................................................................... 6
1.4 Warranty conditions...................................................................................................................................................... 6
1.5 Copyright....................................................................................................................................................................... 6
1.6 Contact LAUDA........................................................................................................................................................... 6
2 Safety...................................................................................................................................................................................... 7
2.1 General safety information and warnings................................................................................................................... 7
2.2 Information about the interface module.................................................................................................................... 8
2.3 Personnel qualification.................................................................................................................................................. 8
3 Unpacking.............................................................................................................................................................................. 9
4 Device description............................................................................................................................................................... 10
4.1 Purpose......................................................................................................................................................................... 10
4.2 Structure....................................................................................................................................................................... 10
5 Before starting up................................................................................................................................................................. 11
5.1 Installing the interface module.................................................................................................................................... 11
5.2 Using the module box.................................................................................................................................................. 13
6 Commissioning..................................................................................................................................................................... 14
6.1 Contact assignment of Ethernet interface............................................................................................................... 14
6.2 Software update........................................................................................................................................................... 14
7 Operation.............................................................................................................................................................................. 15
7.1 Menu structure............................................................................................................................................................ 16
7.2 Interface functions....................................................................................................................................................... 16
7.2.1 General Information.................................................................................................................................. 17
7.2.2 Read commands....................................................................................................................................... 18
7.2.3 Write commands...................................................................................................................................... 22
7.2.4 Availability of the interface functions.................................................................................................... 25
7.2.5 Error messages......................................................................................................................................... 27
7.3 Establishing a network connection........................................................................................................................... 28
7.3.1 Configuring network settings................................................................................................................. 29
7.3.2 Checking the network connection........................................................................................................ 30
7.4 Setting up the process interface............................................................................................................................... 30
7.4.1 Activating the process interface (Process SST on/o)....................................................................... 30
7.4.2 Setting up the virtual COM port............................................................................................................ 31
7.4.3 Checking the connection monitoring function.................................................................................... 32
8 Maintenance........................................................................................................................................................................ 33
V2R4 Interface module LRZ 921 3 / 39

9 Faults.................................................................................................................................................................................... 34
9.1 Error............................................................................................................................................................................. 34
9.2 Warning........................................................................................................................................................................ 34
10 Decommissioning................................................................................................................................................................ 35
11 Disposal................................................................................................................................................................................ 36
12 Technical data....................................................................................................................................................................... 37
13 Index..................................................................................................................................................................................... 38
V2R4Interface module LRZ 9214 / 39

1 General
Many types of LAUDA constant temperature equipment have vacant
module slots for installing additional interfaces. The number, size and
arrangement of the module slots vary depending on the device and are
described in the operating manual accompanying the constant temperature
equipment. Two additional module slots available as accessories can be fitted
to a LiBus module box, which is then connected as an external casing to the
LiBus interface on the constant temperature equipment.
This operating manual describes how to install and configure the Ethernet
USB interface module (catalog no. LRZ 921).
Constant temperature equipment can be connected to a PC or network
via the Ethernet interface and controlled from there using the LAUDA
command set. The interface functions provided for this purpose are
described in chapters and .
The two USB interfaces are intended for future expansion and do not cur-
rently have any function.
1.1 Intended use
The interface module can only be operated as intended and under the
conditions specified in this operating manual.
The interface module is an accessory that increases the connections options
of LAUDA constant temperature equipment. It may only be installed in con-
stant temperature equipment that supports the interface provided. Refer to
the chapter "Compatibility” in this operating manual for a list of compatible
product lines.
Operation of the interface module is also permitted in combination with the
LiBus module box (LAUDA catalog no. LCZ 9727). This operating manual
also contains a description of how to install and connect up the module box.
Operation after incomplete assembly
Operation on incompatible constant temperature equipment
Operation using cables or connections that are defective or do not
confirm to standards
1.2 Compatibility
The interface module is available as an accessory for the following LAUDA
product lines:
ECO
Proline
Variocool, not compatible with Variocool NRTL
Integral XT, not compatible with Integral IN
Operating interfaces of the same type:
Only one Ethernet interface can be used for each item of constant
temperature equipment.
Reasonably foreseeable improper use
V2R4 Interface module LRZ 921 5 / 39

1.3 Technical changes
All technical modifications are prohibited without the written consent of the
manufacturer. Damage resulting from a failure to observe this condition will
void all warranty claims.
However, LAUDA reserves the right to make general technical modifica-
tions.
1.4 Warranty conditions
LAUDA grants a standard warranty of one year.
1.5 Copyright
This operating manual was written in German, checked and approved. If
the content of other language editions deviates from the German edition,
the information in the German edition shall take precedence. If you notice
any discrepancies in the content, please contact LAUDA Service, see
ÄChapter 1.6 “Contact LAUDA” on page6.
Company and product names mentioned in the operating manual are usually
registered trademarks of the respective companies and are therefore subject
to brand and patent protection. Some of the images used may also show
accessories that are not included in the delivery.
All rights reserved, including those relating to technical modifications and
translations. This operating manual or parts thereof may not be modified,
translated or used in any other capacity without the written consent of
LAUDA. Violation of this may obligate the violator to the payment of dam-
ages. Other claims reserved.
1.6 Contact LAUDA
Contact the LAUDA Service department in the following cases:
Troubleshooting
Technical questions
Ordering accessories and spare parts
Please contact our sales department for questions relating to your specific
application.
Contact information
LAUDA Service
Phone: [phone]
Email: [email protected]
V2R4
Interface module LRZ 9216 / 39

2 Safety
2.1 General safety information and warnings
Read this operating manual carefully before use.
Keep the operating manual in a place within easy reach of the interface
module.
This operating manual is part of the interface module. If the interface
module is passed on, the operating manual must be kept with it.
This operating manual is applicable in combination with the operating
manual of the constant temperature equipment in which the interface
module is installed.
Manuals for LAUDA products are available for download on the
LAUDA website: https://www.lauda.de
The warnings and safety instructions in this operating manual must be
observed without fail.
There are also certain requirements for personnel, see ÄChapter 2.3
“Personnel qualification” on page8.
Warning signs Type of danger
Warning – danger zone.
Signal word Meaning
DANGER! This combination of symbol and
signal word indicates an imminently
dangerous situation that will result
in death or serious injury if it is not
avoided.
WARNING! This combination of symbol and
signal word indicates a potentially
dangerous situation that can result
in death or serious injury if it is not
avoided.
NOTICE! This combination of symbol and
signal word indicates a poten-
tially dangerous situation that can
result in material and environmental
damage if it is not avoided.
Structure of warnings
V2R4 Interface module LRZ 921 7 / 39

2.2 Information about the interface module
Always disconnect the constant temperature equipment from the power
supply before installing the interface module or connecting interfaces.
Always take the recommended safety measures against electrostatic
discharge before handling interface modules.
Avoid touching the circuit board with metallic tools.
Do not start up the constant temperature equipment before installation
of the interface module is complete.
Store any unused interface modules in their packaging in accordance
with the specified ambient conditions.
Use only suitable cables of sucient length for cable connections.
Make sure that the protective screen on the cables and connec-
tors complies with EMC regulations. LAUDA recommends using pre-
assembled cables.
Always lay cables correctly so that they do not pose a tripping hazard.
Secure the laid cables and make sure that they cannot be damaged
during operation.
Check the condition of the cables and interfaces prior to each opera-
tion.
Immediately clean any soiled parts, in particular unused interfaces.
Make sure that the signals transmitted via the interface correspond to
the permitted operating parameters of the interface module.
2.3 Personnel qualification
Only specialized personnel are permitted to install interfaces modules. Spe-
cialized personnel are personnel whose education, knowledge, and experi-
ence qualify them to assess the function and risks associated with the device
and its use.
Specialized personnel
V2R4Interface module LRZ 9218 / 39

3 Unpacking
DANGER!
Transport damage
Electric shock
Closely inspect the device for transport damage prior to
commissioning!
Never operate a device that has sustained transport
damage!
NOTICE!
Electrostatic discharge
Material damage
Always observe safety measures against electrostatic dis-
charge.
Please observe the following installation sequence:
1. Remove the interface module from its packaging.
2. If you want to store the interface module at the installation location,
use the outer packaging. This packaging is protected against static
charging.
3. After installing the equipment, dispose of the packaging materials in
line with environmental regulations, see Ä“Packaging” on page36.
If you discover any damage on the interface module, contact
LAUDA Service immediately, see ÄChapter 1.6 “Contact
LAUDA” on page6.
V2R4 Interface module LRZ 921 9 / 39

4 Device description
4.1 Purpose
The Ethernet USB module was developed for the following purposes:
Integrating constant temperature equipment in an Ethernet network.
Controlling constant temperature equipment via the LAUDA command
set.
The two USB interfaces on the Ethernet USB module have no func-
tion. They will therefore not be mentioned again in this operating
manual.
4.2 Structure
1 Cover with holes for M3x10 fastening screws
2 Ethernet interface (10/100 Mbit/s, RJ 45 with 2 LEDs*)
3 Host USB port, USB 2.0 type A (intended for future expansion)
4 Device USB port, USB 2.0 type B (intended for future expansion)
* The two LEDs indicate whether the interface is connected and whether
data is being transmitted (link/activity).
Material damage during repairs
The Ethernet USB module is fitted with a micro-SD card for remote
maintenance purposes.
Only LAUDA service personnel are permitted to remove or
exchange the micro-SD card.
Fig.1:Ethernet USB module
V2R4Interface module LRZ 92110 / 39

5 Before starting up
5.1 Installing the interface module
The interface module is connected to an internal LiBus ribbon cable and
inserted into a vacant module slot. The number and arrangement of the
module slots vary depending on the device. The module slots are protected
by a cover that is screwed onto the casing or attached to the slot opening.
WARNING!
Touching live parts
Electric shock
Disconnect the device from the power supply before
starting any installation work.
Always observe safety measures against electrostatic dis-
charge.
The module installation description essentially applies to all LAUDA
constant temperature equipment; the example diagrams here show
the installation of an analog module in constant temperature equip-
ment from the Variocool product line.
Please note that an interface module with a small cover can only
be installed in a low module slot. The fitted cover must cover the
opening on the module slot completely.
You will require twoM3 x 10 screws and a suitable screwdriver to
secure the interface module.
Please observe the following installation sequence:
1. Turn o the constant temperature equipment and pull out the mains
plug.
2. If necessary, remove the screws from the cover on the relevant
module slot. If necessary, use a slotted screwdriver to prise o the
cover.
Fig.2:Removing the cover (schematic dia-
gram)
V2R4 Interface module LRZ 921 11 / 39

3. Remove the cover from the module slot.
The module slot is open. The LiBus ribbon cable is attached to the
inside of the cover and is easily accessible.
4. Disconnect the LiBus ribbon cable from the cover.
5. Connect the red plug on the LiBus ribbon cable to the red socket on
the circuit board of the interface module. Plug and socket are reverse
polarity protected: Make sure that the lug on the plug is aligned with
the recess in the socket.
The interface module is correctly connected to the constant tem-
perature equipment.
6. Slide the LiBus ribbon cable and the interface module into the module
slot.
7. Secure the cover to the casing using twoM3 x 10 screws.
The new interface on the constant temperature equipment is
ready for operation.
Fig.3:Detaching the LiBus ribbon cable
(schematic diagram)
Fig.4:Connecting the interface module
(schematic diagram)
Fig.5:Securing the cover (schematic dia-
gram)
V2R4Interface module LRZ 92112 / 39

5.2 Using the module box
You can extend LAUDA constant temperature equipment by two additional
module slots using the LiBus module box. The module box is designed for
interface modules with a large cover and is connected to constant tem-
perature equipment via a vacant LiBus socket.
The socket on the constant temperature equipment bears the label LiBus.
Please observe the following installation sequence:
1. Switch o the constant temperature equipment.
2. Disconnect the cable on the module box from the constant tem-
perature equipment.
The module box is disconnected from the power supply.
3. Check which interfaces are already present on the constant tem-
perature equipment and module box.
Observe the information on interface module compatibility.
Only install an interface module with the same type of inter-
face if operation with several of these interfaces is permitted.
4. Install the required interface module in the module box. Please read
the information on installing the module box in the constant tem-
perature equipment, see chapter "Installing the interface module".
5. Position the module box close to the constant temperature equip-
ment.
6. Connect the cable on the module box to the LiBus socket on the
constant temperature equipment.
The interfaces on the module box are ready for operation.
Fig.6:LiBus module box, catalog no.
LCZ 9727
V2R4 Interface module LRZ 921 13 / 39

6 Commissioning
6.1 Contact assignment of Ethernet interface
The Ethernet interface is equipped with standard type RJ45 sockets (8P8C
modular plugs according to CFR Part 68). Standard Ethernet cables that
correspond to category CAT5e or higher (8P8C assignment with twisted
pairs) must be used for the connection.
Table1:RJ45 contact assignment
Contact Signal 10Base-T / 100Base-TX
1 Tx+
2 Tx-
3 Rx+
4 –
5 –
6 Rx-
7 –
8 –
6.2 Software update
Older software installed on constant temperature equipment may have to be
updated for the new interface to work.
1. Switch on the constant temperature equipment after installing the
new interface.
2. Check whether a software warning appears on the display:
Warning SW too old : Please contact LAUDA Service, see
ÄChapter 1.6 “Contact LAUDA” on page6.
No software warning: Operate the constant temperature equip-
ment as normal.
Fig.7:RJ45 contacts on socket/plug
V2R4Interface module LRZ 92114 / 39

7 Operation
You can connect your constant temperature equipment directly to a PC
via the Ethernet interface or integrate it into a local network so that the
equipment can be controlled using a LAUDA command set.
The configuration for the Ethernet interface is stored in the con-
stant temperature equipment. If the interface module is installed in
a dierent device, the settings must be reconfigured there.
The command performance achieved via the Ethernet depends on multiple
factors, including the following criteria:
Ideally, the constant temperature equipment and control station/ PC
should be located in the same (sub)network, otherwise the number of
interconnected routers or switches should be kept to a minimum.
A cable connection (LAN) to the control station / PC is usually more
reliable for data transmission than a wireless connection (WLAN).
Excessive network utilization can slow down the exchange of commands
considerably.
Data is exchanged between the constant temperature equipment and an
external application via the Ethernet interface in line with the command/
response principle. In other words, a new command is usually only issued
once the constant temperature equipment has responded to the previous
command.
Under ideal conditions, commands can be sent to the constant temperature
equipment every 100 ms. If the network load is high or a WiFi connection is
being used, commands may have to be issued at intervals of more than 1s.
A transmission rate of 500 ms is appropriate for many periodic commands
(such as Actual value of external temperature ). If this value is used as a control
variable in the constant temperature equipment, a slower transmission rate
will impair the control action.
Command performance
V2R4 Interface module LRZ 921 15 / 39

7.1 Menu structure
The menu only ever shows functions that are available for the
current constant temperature equipment.
The menu for configuring the interface is integrated in the main menu of the
relevant constant temperature equipment:
Menu Modules Ethernet
Fig.8:Ethernet interface menu
7.2 Interface functions
Interface functions such as read and write commands make it possible to
read out the current operating parameters of constant temperature equip-
ment and predefine specific settings and process values.
The interface functions supported by this interface are presented briefly
below. They are sorted by topic according to the component aected and
assigned a unique ID. Depending on the technical configuration of your
constant temperature equipment, the number and scope of the interface
functions actually available may vary from the list shown here, see chapter
"Availability of the interface functions".
V2R4
Interface module LRZ 92116 / 39

7.2.1 General Information
Communication takes place according to the master/slave principle. In order
to ensure that a request and response are uniquely assigned to one another,
commands can only be sent to the constant temperature equipment once a
response to the previous command has been received.
All available read and write commands as well as the meaning of any error
messages that may occur are presented below. Note the following informa-
tion relating to syntax and sequencing when using these commands:
Numerical values are provided in fixed point format; numbers with up to
4 places in front of the decimal point and up to 2places after the decimal
point are permitted:
Table2:Acceptable data formats
-XXXX.XX -XXXX.X -XXXX. -XXXX XXXX.XX XXXX.X XXXX. XXXX
-XXX.XX -XXX.X -XXX. -XXX XXX.XX XXX.X XXX. XXX
-XX.XX -XX.X -XX. -XX XX.XX XX.X XX. XX
-X.XX -X.X -X. -X X.XX X.X X. X
-.XX -.X .XX .X    
Error messages are output with the syntax "ERR_X":
ERR= Identification as an error message
X = Error number (whole number without leading zero, maximum of
4 digits)
Space " " and underscore "_" can be used synonymously.
Commands from an external source must always end with CR, CRLF or
LFCR. The response from the constant temperature equipment always
ends with CRLF. Meaning of the abbreviations:
CR = Carriage Return (Hex: 0D)
LF = Line Feed (Hex:0A)
In order to ensure that a request and response are uniquely assigned
to one another, commands can only be sent to the constant tem-
perature equipment once a response to the previous command has been
received.
Example with set point transfer of 30.5 °C to the constant temperature
equipment.
PC / control station Constant temperature equipment
"OUT_SP_00_30.5"CRLF è
ç"OK"CRLF
Example
Ethernet protocol
V2R4 Interface module LRZ 921 17 / 39

7.2.2 Read commands
The interface module recognizes the following read commands, which you
can use to retrieve operating data of the constant temperature equipment.
Table3: Temperature
ID Function Unit, resolu-
tion
Command
2 Temperature set point [°C] IN_SP_00
3 Bath temperature (outflow temperature) [°C], 0.01°C IN_PV_00
5 Controlled temperature (internal / external Pt/ external analog/ external
serial)
[°C] IN_PV_01
7 External temperature TE(Pt) [°C] IN_PV_03
8 External temperature TE(analog input) [°C] IN_PV_04
25 Overtemperature turn o point T_Max [°C] IN_SP_03
27 Limitation of outflow temperature TiH (upper limit) [°C] IN_SP_04
29 Limitation of outflow temperature TiH (lower limit) [°C] IN_SP_05
33 Set temperatureTset in Safe Mode (safe set point in case of communication
interruption).
[°C] IN_SP_07
Table4: Pump
ID Function Unit Command
6Outflow pressure / pump pressure, relative to the atmosphere [bar] IN_PV_02
12 Flow rate of the pump
(MID flow controller must be connected)
[l/min] IN_PV_07
18 Pump power stage [–] IN_SP_01
31 Outflow pressure set point / pump pressure (for pressure control settings) [bar] IN_SP_06
37 Flow rate control set point [L/min] IN_SP_09
71 Status of flow rate control: 0=o/ 1=on [–] IN_MODE_05
Table5: Fill level
ID Function Unit Command
9 Bath level (fill level) [–] IN_PV_05
Table6: Cooling
ID Function Unit Command
24 Cooling mode: 0=o/ 1=on/ 2=automatic [–] IN_SP_02
V2R4Interface module LRZ 92118 / 39

Table7:Safety
ID Function Unit Command
73 Status of Safe Mode: 0=o (inactive) / 1 = on (active) [–] IN_MODE_06
Table8: Control parameters
ID Function Unit Command
39 Control parameter Xp [–] IN_PAR_00
41 Control parameter Tn (181=O) [s] IN_PAR_01
43 Control parameter Tv [s] IN_PAR_02
45 Control parameter Td [s] IN_PAR_03
47 Control parameter KpE [–] IN_PAR_04
49 Control parameter TnE [s] IN_PAR_05
51 Control parameter TvE [s] IN_PAR_06
53 Control parameter TdE [s] IN_PAR_07
55 Correction limitation [K] IN_PAR_09
57 Control parameter XpF [–] IN_PAR_10
61 Control parameter Prop_E [K] IN_PAR_15
Table9: Control
ID Function Unit Command
59 Setpoint oset [K] IN_PAR_14
67 Control in control variable X: 0 = internal / 1 = external Pt/ 2=external
analog / 3 = external serial / 5 = external Ethernet / 6 = external EtherCAT/
7=external Pt 2 (only for Integral)
[–] IN_MODE_01
69 Oset source X for set point: 0 = normal / 1 = external Pt/ 2=external
analog / 3 = external serial / 5 = external Ethernet / 6 = external EtherCAT/
7=external Pt 2 (only for Integral)
[–] IN_MODE_04
Table 10: Rights
ID Function Unit Command
63 Status of keyboard Master: 0 = free / 1 = blocked [–] IN_MODE_00
65 Status of keyboard remote control: 0 = free / 1 = blocked [–] IN_MODE_03
V2R4 Interface module LRZ 921 19 / 39

Table11: Status
ID Function Unit Command
107 Device type (e.g.: "ECO", "INT" or "VC") [–] TYPE
130 Device status: 0 = OK / -1=fault [–] STATUS
131 Fault diagnosis; a 7-digit answer in the format XXXXXXX is output, whereby
each character X contains fault information (0 = no fault / 1 = fault).
The following information is defined for the seven places of the answer
format:
1st character = Error
2ndcharacter=Alarm
3rd character = Warning
4th character = Overtemperature
5th character = Low level
6th character = 0 (with alarm setting: High level)
7th character = External control value missing
[–] STAT
Table12: Programmer
ID Function Unit Command
77 Program used as a basis for further commands [–] RMP_IN_04
88 Current segment number [–] RMP_IN_01
90 Number of preset program sequences [–] RMP_IN_02
92 Current program loop [–] RMP_IN_03
94 Currently running program (0 = no program currently running) [–] RMP_IN_05
Table13: Contact input/output
ID Function Unit Command
96 Contact input1: 0=open/ 1=closed [–] IN_DI_01
98 Contact input2: 0=open/ 1=closed [–] IN_DI_02
100 Contact input3: 0=open/ 1=closed [–] IN_DI_03
102 Contact output1: 0=open/ 1=closed [–] IN_DO_01
104 Contact output2: 0=open/ 1=closed [–] IN_DO_02
106 Contact output3: 0=open/ 1=closed [–] IN_DO_03
V2R4Interface module LRZ 92120 / 39