2584458-G EN 1902
Modbus
MODBUS
Addendum manual for installation and operation
for use with DL, ME, RS, EL and RO-A
devices as of software 5.8.x.x
Humidication and Evaporative Cooling
Thank you for choosing Condair
Installation date (MM/DD/YYYY):
Commissioning date (MM/DD/YYYY):
Site:
Model:
Serial number:
Proprietary Notice
This document and the information disclosed herein are proprietary data of Condair Group AG. Neither this document,
nor the information contained herein shall be reproduced, used, or disclosed to others without the written authorization of Condair Group AG, except to the extent required for installation or maintenance of recipient's equipment.
Liability Notice
Condair Group AG does not accept any liability due to incorrect installation or operation of the equipment or due
to the use of parts/components/equipment that are not authorized by Condair Group AG.
Copyright Notice
© Condair Group AG, All rights reserved.
Technical modications reserved
Contents
1 Introduction 5
1.1 Notes on this addendum manual 5
2 For your safety 6
3 Communication interface Integrated Controller 7
3.1 Technical data Modbus RTU 7
3.2 Technical data Modbus TCP 8
4 Modbus RTU 9
4.1 Before installation 9
4.2 Network structure Modbus RTU 9
4.3 Connection and conguration of the Integrated Controller for Modbus RTU 10
4.4 Determining the Modbus RTU interface parameters 11
5 Modbus TCP 13
5.1 Before installation 13
5.2 Network structure Modbus TCP 13
5.3 Determining the Modbus TCP interface parameters 14
5.3.1 Setting the network parameters (or IP parameters) 14
5.3.2 Setting the Modbus TCP interface parameters 15
6 Control signal settings 17
7 Notes on data register tables 18
7.1 Software version 1.1.x.x 18
7.2 Software version 4.x.x.x 18
7.3 Software version 5.x.x.x 18
7.4 Software version 5.3.x.x 18
7.5 Software version 5.7.x.x 19
7.6 Software version 5.8.x.x 19
8 Data register tables 20
8.1 Data register DL 20
8.2 Data register ME 22
8.3 Data register RS 25
8.4 Data register RO-A 29
8.5 Data register EL 30
9 Options 32
9.1 Galvanic Isolation Module 32
9.2 Mounting the "Isolation Module" option 32
3Contents
10 Test of the Modbus communication 33
10.1 Modbus RTU Test 33
10.2 Modbus TCP Test 34
10.3 Read out registers 35
10.4 Function 35
10.5 Number of registers 36
10.6 32-Bit Float Register 36
10.7 Test tool variety 36
4 Contents
1 Introduction
1.1 Notes on this addendum manual
This addendum manual is intended for use by engineers and properly trained technical personnel.
Please read this manual thoroughly before installing and conguring the Condair Integrated Controller
or a Modbus network.
If you have questions after reading this documentation, please contact your Condair representative.
They will be glad to assist you.
Symbols used in this manual
CAUTION!
The catchword "CAUTION" used in conjunction with the caution symbol in the circle designates notes
in this addendum manual that, if neglected, may cause damage and/or malfunction of the unit or
other material assets.
WARNING!
The catchword "WARNING" used in conjunction with the general caution symbol designates safety
and danger notes in this addendum manual that, if neglected, may cause to injury to persons.
DANGER!
The catchword "DANGER" used in conjunction with the general caution symbol designates safety and
danger notes in this addendum manual that, if neglected, may lead to severe injury or even death
of persons.
Safekeeping
Please safeguard this addendum manual in a safe place, where they can be immediately accessed. If the
equipment changes hands, the documentation must be passed on to the new operator.
If the documentation gets mislaid, please contact your Condair representative.
Language versions
This operation manual is available in various languages. Please contact your Condair representative
for information.
5Introduction
2 For your safety
General
Every person working with the Condair Integrated Controller must have read and understood this addendum manual, and the installation manual and operation manual of the Condair Integrated Controller,
before carrying out any work.
Knowing and understanding the contents of the manuals is a basic requirement for protecting the personnel against any kind of danger, to prevent faulty operation, and to operate the unit safely and correctly.
All icons, signs and markings applied to the unit must be observed and kept in readable state.
Qualication of personnel
All work described in this addendum manual may only be carried out by trained Condair service
technicians.
It is assumed that the service technicians working with the Condair Integrated Controller are familiar and
comply with the appropriate regulations on work safety and the prevention of accidents.
Danger that may arise from the Condair Integrated Controller
DANGER!
Danger of electric hazard!
The electrical compartment where the Integrated Controller is located may have live mains
voltage connected for other uses of the device. Live parts may be exposed when the control
unit is open. Touching live parts may cause severe injury or danger to life.
Prevention: Before commencing any work on the control unit disconnect the mains supply voltage
to the device via the electrical isolator in the mains supply line, and secure electrical isolator in "Off"
position against inadvertent switching on.
Safety reporting
All persons working with the Condair Integrated Controller are obliged to report any alterations to the
system that may affect safety to the owner without delay and to secure such systems against accidental
power-up.
Prohibited modications to the unit
No modications must be undertaken on the Condair Integrated Controller without the express written
consent of the manufacturer. For the replacement of defective components use exclusively original accessories and spare parts available from your Condair representative.
6 For your safety
3 Communication interface Integrated Controller
3.1 Technical data Modbus RTU
Protocol Modbus RTU
Interface EIA-485 (RS485) (2-wire / GND)
Galvanic isolated
Connection Plug-in screw terminal 3-pole:
Telegram format 1 Start / 8 Data / 1 Parity / 1 Stop
Data check CRC according to Modbus RTU specication
Modbus address 1 – 247 (10)
Parity None, even, odd
Baud rate 9600, 19200, 38400, 57600, 115200
Control signal timeout 0-300s (300s)
Max. number of devices 32 (according to RS485 specication)
Supporting Modbus functions 3 Read Holding Registers
Register format 16-Bit UInt Register
Max. cable lengths/ type
Topology Line (Daisy Chain)
Software version device 5.x.x.x or higher
No (Galvanic isolation optional possible, see chapter 9)
Data + / Data - / GND
4 Read Input Registers
6 Write Single Registers
32-Bit Float Register (only from software version 5.x.x.x or higher)
600 m
Balanced twisted pair with shield, 100-120 Ohm impedance
bold data = default settings
7Communication interface Integrated Controller
3.2 Technical data Modbus TCP
Protocol Modbus TCP
Interface RJ45 Ethernet port
Port 502 (options 1 - 65535)
Modbus address 255
Max. number of devices According Ethernet specication
Bitrate 10 / 100 Mbits/s (according to Ethernet specication)
Control signal timeout 0-300s (300s)
Supporting Modbus functions 3 Read Holding Registers
4 Read Input Registers
6 Write Single Registers
Register format 16-Bit UInt Register
32-Bit Float Register
Max. cable lengths/ type 100m, CAT5 / 6
Topology Bus (according to Ethernet specication)
Max. number of clients 3
Software version device Version 5.8 or higher
bold data = default settings
8 Communication interface Integrated Controller
4 Modbus RTU
4.1 Before installation
To do installation works on the respective device you have to switch off the device and secure it from
unintended switch-on according to the operation manual! Also follow any other safety instructions from
the user manual. If not mentioned otherwise, the specications of the Modbus RTU or RS485 standard
apply. The installation has to be carried out in accordance with local regulations.
It's recommended to update the device software to the newest version before start the implementation
of the device in a Modbus RTU network.
The respective device acts as a slave only. The Modbus RTU master - slave principle only allows the
master (e.g. a control computer) to initiate date transmission. The respective slave device then reacts and
exports the requested data to the master or carries out the action required by the master. In a Modbus
RTU network only one master may be present.
4.2 Network structure Modbus RTU
Shield
J6
Master
–
+
RS485
GND
Fig. 1: Example Modbus RTU Network
– Connect the cable shield on one side with the functional earth
– Connect all GND together
– Install bus line separate from supply voltage
– Topology: Daisy chain
– All devices of the same network need the same settings concerning baud rate and parity
–
+
Device 1
GND
–
Device 2
J6
+
GND
– Every Modbus device address can only be allocated once within the same network.
9Modbus RTU
4.3 Connection and conguration of the Integrated Controller for Modbus RTU
J4
3J 2J
J7
–
J6
BMS
+
GND
J10
J12
GND + – GND + – GND + –24V GND
J14
(USB)
J7
3V
CR2032
J4J8J11
RJ45
Fig. 2: Integrated Controller (back view)
– Modbus RTU communication via port J6 "BMS"
– Jumper J7 has to be set for all devices.
Important: When laying the network cabling,
make sure there is sufcient distance to other
cables, especially if they are connected to the
mains!
– Jumper J4 only has to be set for the last devices in the net (end of line termination at the beginning
and end of the Modbus net). Jumper J4 set = end of line termination resistor activated.
– Jumper J4 has to be always removed by using the optional galvanic isolation (see chapter 9).
– All devices have to connected via GND.
– Software Version 1.1.0.23 or higher is needed (recommended software version 5.x.x.x or higher).
10 Modbus RTU
4.4 Determining the Modbus RTU interface parameters
The following interface parameters are xed and can not be modied:
– 1 start bit
– 8 data bits
– 1 parity bit
– 1 stop bit
The following Modbus RTU settings must be specied. Changes to these settings only become
effective after a restart!
Select "Communication" (Path: Menu > Password entry 8808 > Conguration > Communication). In
the "Communication" submenu scroll to "Modbus-Parameter" tab. Touch the "Modbus" eld, set Modbus function to "Modbus/RTU" and conrm with the check mark button. The setting parameters for the
Modbus RTU communication appear.
Modbus Address: With this setting you determine the Modbus address for
the device for the communication via a Modbus network.
Note: The same address may only be assigned once per Modbus network.
Factory setting: 10
Setting range: 1 ... 247
Parity: With this setting you set the parity bit for the data transfer.
Factory setting: Even
Options: None, Even or Odd
11Modbus RTU
Baud Rate: With this setting you set the baud rate for the data transfer.
Note: In the same Modbus network the baud rate must be the same for all
participants. Only use for Modbus RTU the baud rates listed under Option.
Factory setting: 9600
Options: 9600, 19200, 38400, 57600 or 115200
Register Sequence: With this setting you determine the register sequence
for the transmission of oating-point numbers. .
Note: With Modbus communication 32 Bit oating-point numbers are transmitted
in two registers of 16 Bit each. In order that sender and receiver understand
each other (that means both use the identical partitioning of the 32 Bit to the
two 16 Bit registers) it must be determined whether the high-order register
(MSR = Most Signicant Register) or the low-order register (LSR = Least
Signicant Register) is transmitted rst.
Factory setting: MSR rst
Options: LSR rst (low-order register is transmitted rst)
Edianness: Little Edian Byte Swapped
(Format 32 Bit Float [CD] [AB])
MSR rst (high-order register is transmitted rst)
Edianness: Big Endian
(Format 32 Bit Float [AB] [CD])
In the "Communication" submenu scroll to "BMS-Timeout" tab. Touch the "BMS-Timeout" eld.
BMS-Timeout: With this setting you determine the timeout for the timeout for
the data transfer. If the communication with the Modbus master fails longer
than the set time, warning W35 "BMS Timeout" is triggered.
Note: The BMS timeout is only evaluated if the signal source (Path: Menu>
Conguration> Control Settings > Source) is not set to "Analog".
Factory setting: 300 s
Setting range: 1 ... 300 s
Note: As of software version 5.3.x.x, the device is stopped when warning
W35 occurs.
12 Modbus RTU
5 Modbus TCP
5.1 Before installation
To do installation works on the respective device you have to switch off the device and secure it from
unintended switch-on according to the appropriate operation manual! Also follow any other safety instructions from the user manual. If not mentioned otherwise, the specications of the Modbus TCP or
Ethernet standard apply. The installation has to be carried out in accordance with local regulations.
It's recommended to update the device software to the newest version before start the implementation
of the device in a Modbus TCP network. Modbus TCP is only supported as of software version 5.8.
The device acts as a server only. The Modbus TCP client - server principle only allows the client (e.g.
a control computer) to initiate date transmission. The respective server (respective device) then reacts
and export the requested data to the client or carries out the action required by the client.
5.2 Network structure Modbus TCP
Integrated Controller
(back view)
RJ45
(USB)
J7
3V
CR2032
J4J8J11
RJ45
BMS
Ethernet (Modbus TCP)
CAT6A cable (or higher) with RJ45
connector
J2J3
J6
J10
J12
GND + – GND + – GND + –24V GND
J14
Important: When laying the network cabling,
make sure there is sufcient distance to other
cables, especially if they are connected to the
mains!
Fig. 3: Example Modbus TCP Network
13Modbus TCP
5.3 Determining the Modbus TCP interface parameters
5.3.1 Setting the network parameters (or IP parameters)
The network settings (or IP settings) are used for the communication via the integrated Modbus TCP
interface.
Select "Communication" submenu (Path: Menu > Password entry 8808 > Conguration > Communication). In the "Communication" submenu select the "Network Parameters" tab.
– IP Type: With this setting you determine whether you want to assign the IP
Address, the Subnet Mask, the Standard Gateway as well as the Primary
and Secondary DNS address as xed values or whether these should be
dynamically assigned via a DHCP server.
Note: After 5 unsuccessful attempts at obtaining an address with DHCP
the system will revert to xed assignment
Factory setting: DHCP
Options: DHCP (dynamic assignment)
Fixed (xed assignment)
– IP Address: This eld shows the actual IP address of the device assigned
manually or assigned by a DHCP server.
If the parameter "IP Type" is set to "Fix", the IP address of the device can
be set via this eld. If the parameter "IP type" is set to "DHCP", the IP
address of the device is assigned by a DHCP server.
– Subnet Mask: This eld shows the actual subnet mask of the IP network
assigned manually or assigned by a DHCP server.
If the parameter "IP Type" is set to "Fix", the subnet mask can be set via
this eld. If the parameter "IP type" is set to "DHCP", the subnet mask is
assigned by a DHCP server.
– Default Gateway: This eld shows the actual IP address of the default
gateway assigned manually or assigned by a DHCP server.
If the parameter "IP Type" is set to "Fix", the IP address of the default gateway can be set via this eld. If the parameter "IP type" is set to "DHCP",
the IP address of the default gateway is assigned by a DHCP server.
14 Modbus TCP
– Primary DNS: This eld shows the actual IP address of the primary domain
name server (DNS) assigned manually or assigned by a DHCP server.
If the parameter "IP Type" is set to "Fix", the IP address of the primary
domain name server can be set via this eld. If the parameter "IP type"
is set to "DHCP", the IP address of the primary domain name server is
assigned by a DHCP server.
– Secondary DNS: This eld shows the actual IP address of the secondary
domain name server (DNS) assigned manually or assigned by a DHCP
server.
If the parameter "IP Type" is set to "Fix", the IP address of the secondary
domain name server can be set via this eld. If the parameter "IP type"
is set to "DHCP", the IP address of the secondary domain name server
is assigned by a DHCP server.
– MAC Address: Factory set MAC Address (Media Access Control) of the
device. Not modiable.
– Host Name: Host Name of the device automatically generated by the
control. Format: "IC_"+"Serial number of the device". Not modiable.
5.3.2 Setting the Modbus TCP interface parameters
Select "Communication" submenu (Path: Menu > Password entry 8808 > Conguration > Communication). In the "Communication" submenu scroll to the "Modbus Parameters" tab. Touch the "Modbus" eld,
set Modbus function to "Modbus/TCP" and conrm with the check mark button. The setting parameters
for the Modbus TCP communication appear.
IP Port: With this setting you assign a IP port number for Modbus TCP. By
default, Modbus TCP uses port 502.
Factory setting: 502
Setting range: 1 ... 65535
15Modbus TCP
Register Sequence: With this setting you determine the register sequence
for the transmission of oating-point numbers. .
Note: With Modbus communication 32 Bit oating-point numbers are transmitted
in two registers of 16 Bit each. In order that sender and receiver understand
each other (that means both use the identical partitioning of the 32 Bit to the
two 16 Bit registers) it must be determined whether the high-order register
(MSR = Most Signicant Register) or the low-order register (LSR = Least
Signicant Register) is transmitted rst.
Factory setting: MSR rst
Options: LSR rst (low-order register is transmitted rst)
Edianness: Little Edian Byte Swapped
(Format 32 Bit Float [CD] [AB])
MSR rst (high-order register is transmitted rst)
Edianness: Big Endian
(Format 32 Bit Float [AB] [CD])
In the "Communication" submenu scroll to "BMS-Timeout" tab. Touch the "BMS-Timeout" eld.
BMS-Timeout: With this setting you determine the timeout for the timeout for
the data transfer. If the communication with the Modbus master fails longer
than the set time, warning W35 "BMS Timeout" is triggered.
Note: The BMS timeout is only evaluated if the signal source (Path: Menu>
Conguration> Control Settings > Source) is not set to "Analog".
Factory setting: 300 s
Setting range: 1 ... 300 s
Note: As of software version 5.3.x.x, the device is stopped when warning
W35 occurs.
16 Modbus TCP
6 Control signal settings
If the demand or control signal is also to be transmitted via Modbus, the signal source must be set to
"Modbus" in "Menu> Password entry 8808> Conguration> Control Settings> Source" as shown below.
Important: If the demand or control signal via Modbus is used, no second, hard-wired demand or control
signal may be connected to the driver board!
Further information on the control settings can be found in the operating instructions for the corresponding device.
Notes on monitoring of the bus communication
Monitoring of the bus communication as described below takes place only if the "Source" parameter in
the "Control Settings" submenu is not set to "Analog".
As soon as the control signal (demand or humidity signal) is transmitted via Modbus RTU or Modbus
TCP, the communication via the bus system is also monitored. The control signal must be periodically
updated within the time set in "BMS Timeout".
If the control signal is not updated within the set time, warning W35 "BMS Timeout" will be triggered
and the humidication will be stopped until the humidier receives a valid signal into one of the writable
holding registers.
This monitoring is intended to prevent the humidier from humidifying with the last transmitted value in
the event of a bus failure.
17Control signal settings
7 Notes on data register tables
7.1 Software version 1.1.x.x
– UInt16 register only
– No decimals
e.g.:
>0,1 bar ... <1,0 bar = 0
>1,0 bar ... <2,0 bar = 1
>2,0 bar ... <3,0 bar = 2
etc.
– Only imperial display via Modbus
– Pressure values in bar
7.2 Software version 4.x.x.x
– UInt16 register only
– No decimals
– Values rounded
e.g.:
>0,1 bar ... <1,5 bar = 1
>1,5 bar ... <2,5 bar = 2
>2,5 bar ... <3,5 bar = 3
etc.
– Metric or imperial units according to the control unit settings of the corresponding device
7.3 Software version 5.x.x.x
– Use of UInt16 and 32-Bit Float register
– Decimals are shown by all 32-Bit Float registers
– New register addresses for 32-Bit Float
7.4 Software version 5.3.x.x
– When warning W35 "BMS Timeout" occurs, the device is stopped. The BMS timeout is only evaluated,
if the signal source under "Menu > Control Settings > Source" is not set to "Analog" (see chapter 6)
– EL new register for "Operating status A unit" and "Operating status B unit"
– EL new register for internal controller settings
18 Notes on data register tables
7.5 Software version 5.7.x.x
– ME: New unit of measure "days" at next Ag+ service and next UV bulb replacement
– EL: Various new registers, weighted hours removed, Fault and Warning implemented in maintenance
and malfunction status
7.6 Software version 5.8.x.x
– Modbus TCP integrated for DL, ME, RS, EL and RO-A
– DL: New register 41707 "Remote ush"
– DL register 31010: New status "Temperature ush"
– DL register 31013: New status "Replace Ag+ cartridge" and status "Disinfection"
19Notes on data register tables
8 Data register tables
8.1 Data register DL
Description Range Input Register 1-based Format
Max. capacity
1)
Actual capacity 1)
Actual humidity or demand 0 - 100 % 31304
Operating hours 0 - 1'200'000 h 31308
Next service 0 - 10000 h 31310
Remaining Ag-ion
capacity
Target Ag-ion current 0 - 29.2 mA 31314
Inlet pressure PS4
Nozzle pressure PS5
Water temperatur
1)
1)
1)
°C or °F 31320
Conductivity 0 - x μS/cm 31322
Pump current 0 - 5.0 A 31324
Ag-ion current 0 - x mA 31326
Device type
Operating status
Maintenance and
malfunctions status
Error code
2)
2 - 1000 kg/h
4 - 2573 lb/hr
0 - 1000 kg/h
0 - 2573 lb/hr
0 - 58.4 Ah 31312
0 - 12.0 bar
0 - 174.0 psi
0 - 12.0 bar
0 - 174.0 psi
0 = Hum
1 = Hum + FU
2 = Hum + RO-C
3 = RO
0 = Initializing
1 = Diagnostic
2 = Stopped
3 = Flushing
4 = Standby
5 = Flushed
6 = Humidifying
7 = Ready
8 = Refreshing
9 = Air pressure cleaning
10 = Filling
11 = Conductivity ush
12 = Switched Off
13 = Remote Off
14 = Regenerating
15 = Temperature ushing
0 = Service Info
1 = Warning
2 = Activation Code
3 = Out of Commissioning
4 = Rell Disinfection
5 = Service
6 = Fault
7 = Replace Ag Cartridge
8 = Disinfection
0 = No error 31014
Read with function 04
3)
3)
31300
31302
31316
31318
31000
31010
31013
32-Bit Float
UInt16
7)
20 Data register tables
Description Range Input Register 1-based Format
Safety loop
Y1 inlet valve
Y2 valve
Y3 valve
air cleaning
Y4 valve
external pipe ush
Y5 valve
spray circuit
Y6 valve
spray circuit
Y7 valve
spray circuit
Y8 valve
spray circuit
Y9 valve
spray circuit
0 = Open
1 = Closed (=ok)
0 = Closed
1 = Open
0
1
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
31200
31201
31202
31203
31204
31205
31206
31207
31208
31209
UInt16
Y10 valve
drain (NO)
Y11 auxiliary outlet valve
FC enable
1)
According to the settings <Metric> or <Imperial> in the DL control unit. Metric units via Modbus are not supported in software
0 = Open
1 = Closed
0 = Open
1 = Closed
0 = Disable
1 = Enable
31210
31211
31212
version 1.1.x.x
2)
Error Code is not supported in software version 1.1.x.x. See Error code description in the malfunction list of the operation
manual.
3)
psi is not implemented in software version 4.209.x.x and 1.1.x.x
7)
32-Bit Float are only supported in software version 5.x.x.x or higher
Description Range Holding Register 1-based Format
Read with function 03
Write with function 06
Humidity setpoint 0 - 95 % 41005
Proportional band 6 - 65 % 41006
Integral time 1 - 60 min 41007
Manual capacity 20 - 100 % 41008
Actual humidity or
demand via Modbus
Remote ush
0 - 100 % 41053
0 = Stop ush
1 = Start ush
41707
UInt16
21Data register tables
8.2 Data register ME
Description Range Input Register 1-based Format
Actual humidity or
demand
Actual air temperature
UV current 0 – 4.0 A 31304
Water capacity
stage 1
Water capacity
stage 2
Water capacity
stage 3
Water capacity
stage 4
Water capacity
stage 5
Water capacity
stage 6
Water capacity
stage 7
Operating hours 0 - 1'200'000 h 31320
Next service 0 - 10000 h 31322
Next UV bulb exchange 0 - 450 d
Next PureFlow Ag+ exchange 0 - 365 d
Conductivity μS 31328
Actual water
temperature
Incoming air
temperature
1)
1)
Demand pump 1 0 - 100 % 31341
Demand pump 2 0 - 100 % 31342
Demand pump 3 0 - 100 % 31343
Demand pump 4 0 - 100 % 31344
Demand pump 5 0 - 100 % 31345
Demand pump 6 0 - 100 % 31346
Demand pump 7 0 - 100 % 31347
Water lever in tub 0 - 8 31203
1)
1)
1)
1)
1)
1)
1)
1)
Read with function 04
0 - 100 % 31300
°C or °F 31302
5.0 - 200.0 kg/h
11.0 - 440.9 lb/h
5.0 - 200.0 kg/h
11.0 - 440.9 lb/h
5.0 - 200.0 kg/h
11.0 - 440.9 lb/h
5.0 - 200.0 kg/h
11.0 - 440.9 lb/h
5.0 - 200.0 kg/h
11.0 - 440.9 lb/h
5.0 - 200.0 kg/h
11.0 - 440.9 lb/h
5.0 - 200.0 kg/h
11.0 - 440.9 lb/h
6)
6)
31306
31308
31310
31312
31314
31316
31318
31324
31326
°C or °F 31330
°C or °F 31332
32-Bit Float
UInt16
7)
1)
According to the settings <Metric> or <Imperial> in the ME control unit. Metric units via Modbus are not supported in software
version 1.1.x.x
6)
Unit days as of software version 5.7.x.x
7)
32-Bit Float are only supported as of software version 5.x.x.x or higher
22 Data register tables
Description Range Input Register 1-based Format
Read with function 04
Number of running stages 0 – 7 31002
0 = Initializing
1 = Diagnostic
2 = Stopped
3 = Humidifying
4 = Cooling
5 = Holding
6 = Draining
7 = Refreshing
Operating status
8 = Filling
9 = Standby
31010
10 = Diluting
11 = Drain assisting
12 = Bleeding
13 = Ramping Up
14 = Switched Off
15 = Remote Off
16 = Purging
17 = Drain check
0 = Service Info
1 = Warning
2 = Service
3 = Rell Liquid
Maintenance and
malfunctions status
4 = Replace PureFlow Ag+
5 = Replace UV Bulb
31013
6 = Matrix Wash over
7 = Out of Comissioning
8 = Activation Code
9 = Fault
Error code
Fault pump 1
Fault pump 2
Fault pump 3
Fault pump 4
Fault pump 5
Fault pump 6
Fault pump 7
Fault inlet
Fault water temperatur
Fault water outlet
Fault level sensor
Fault water conductivity
Safety loop
2)
4)
4)
4)
4)
4)
4)
4)
4)
4)
4)
4)
4)
0 = No error 31014
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Fault
1 = Ok
0 = Open
1 = Closed (=ok)
31031
31032
31033
31034
31035
31036
31037
31040
31041
31042
31043
31044
31200
UInt16
23Data register tables
Description Range Input Register 1-based Format
Dosing pump level
Leakage sensor
Drain valve
Inlet valve
Drain pump
2)
Error Code is not supported in software version 1.1.x.x. See Error code description in the malfunction list of the operation
0 = Empty
1 = Ok
0 = Leakage
1 = Ok
0 = Open
1 = Closed
0 = Closed
1 = Open
0 = Off
1 = On
31201
31202
31017
31018
31019
UInt16
manual.
4)
Software version x.x.1.16 or higher
Description Range Holding Register 1-based Format
Read with function 03
Write with function 06
Humidity setpoint 0 - 95 % 41005
Proportional band
humidity control
Integral time
humidity control
Integral time
temperatur control
Actual humidity or
demand via Modbus
6 - 65 % 41006
1 - 60 min 41007
1 - 60 min 41017
20 - 100 % 41053
UInt16
Read:
0 = Off
1 = Initialisation
2 = Process active
Matris wash over / tank draining
3 = Process completed
41054
Write:
0 = Stop active process
1 = Start matrix wash over
2 = Start tank draining
Temperature
setpoint
1)
Proportional band
temperature control
Actual temperature
via Modbus
1)
Remote reset
1)
5 - 40 °C
41 - 104 °F
1 - 50 °C
34 - 122 °F
-25 - 100 °C
-13 - 212 °F
0 = Off
1 = On
41300
41302
32-Bit Float
41304
40704 UInt16
7)
1)
According to the settings<Metric> or <Imperial> in the ME control unit. Metric units via Modbus are not supported in software
version 1.1.x.x
7)
32-Bit Float are only supported in software version 5.x.x.x or higher
24 Data register tables
8.3 Data register RS
Description Range Input Register 1-based Format
Input signal channel 1
unit A
Limiter signal channel 2
unit A
System demand 0 - 100 % 30006
Device type
Nominal voltage
Max. capacity
Max. capacity
unit A
Max. capacity
unit B
Actual capacity
Actual capacity
unit A
Actual capacity
unit B
1)
1)
1)
1)
1)
1)
Read with function 04
0 - 100 % 30004
0 - 100 % 30005
0 = RS
1 = RS+ RO
31000
2 = RO
0 = 200 V
1 = 208 V
2 = 230 V
3 = 240 V
4 = 400 V
5 = 415 V
6 = 440 V
31003
7 = 460V
8 = 480 V
9 = 500 V
10 = 550 V
11 = 600 V
12 = 380 V
5 - 160 kg/h
10 - 360 lb/hr
5 - 40 kg/h
10 - 90 lb/hr
5 - 40 kg/h
10 - 90 lb/hr
0 - 160 kg/h
0 - 360 lb/hr
0 - 40 kg/h
0 - 90 lb/hr
0 - 40 kg/h
0 - 90 lb/hr
31016
31018
31020
31022
31024
31026
UInt16
32-Bit Float
7)
1)
According to the settings <Imperial> or <Metric> in the RS control unit
7)
32-Bit Float are only supported in software version 5.x.x.x or higher
25Data register tables
Description Range Input Register 1-based Format
0= Initializing
1 = Diagnostic
2 = Stopped
3 = Break
4 = Level Test
Operating status
unit A
5 = Standby
6 = Humidifying
31010
7 = Filling
8 = Idle
9 = Draining
10 = Remote Off
11 = Keep Warm
0= Initializing
1 = Diagnostic
2 = Stopped
3 = Break
4 = Level Test
Operating status
unit B
5 = Standby
6 = Humidifying
7 = Filling
8 = Idle
31011
UInt16
9 = Draining
10 = Remote Off
11 = Keep Warm
0 = Service Info
1 = Warning
Maintenance and
malfunctions status
unit A
2 = RO Service
3 = Extended Maintenance
4 = Small Maintenance
31012
5 = Activation Code
6 = Fault
0 = Service Info
1 = Warning
Maintenance and
malfunctions status
unit B
2 = RO Service
3 = Extended Maintenance
4 = Small Maintenance
31013
5 = Activation Code
6 = Fault
Error code
2)
0 = No error 31014
Operating hours 0 - 1'200'000 h 31100
Next service
unit A
Next service
unit B
0 - 6000 h
31106
31108
32-Bit Float
0 = no level
1 = low
Water level
unit A
2 = low-mid
3 = mid
31210
4 = mid-high
5 = high
UInt16
0 = no level
1 = low
Water level
unit B
2 = low-mid
3 = mid
31211
4 = mid-high
5 = high
7)
2)
See Error code description in the malfunction list of the operation manual.
26 Data register tables
Description Range Input Register 1-based Format
Blower ready
unit A
Blower ready
unit B
External safety loop
unit A
External safety loop
unit B
Internal safety loop
unit A
Internal safety loop
unit B
Heating voltage
unit A
Heating voltage
unit B
Internal safety loop
unit A (security level
Internal safety loop
unit B (security level)
Leakage sensor
unit A
Leakage sensor
unit B
Contactor
unit A
Contactor
unit B
Pump
unit A
Pump
unit B
0 = Off
1 = On (ready)
0 = Off
1 = On (ready)
0 = Open
1 = Closed (ok)
0 = Open
1 = Closed (ok)
0 = Open
1 = Closed (ok)
0 = Open
1 = Closed (ok)
0 = Off
1 = On
0 = Off
1 = On
0 = Open
1 = Closed (ok)
0 = Open
1 = Closed (ok)
0 = Off (leak)
1 = On
0 = Off (leak)
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
30008
30018
31200
31201
31202
31203
31204
31205
31218
31219
31220
31221
31222
31223
UInt16
31224
31225
Inlet valve 1
unit A
Inlet valve 1
unit B
Inlet valve 2
unit A
Inlet valve 2
unit B
Drain cool valve 1
unit A
Drain cool valve 1
unit B
Complete drain valve 2
unit A
Complete drain valve 2
unit B
External fan
unit A
External fan
unit B
Hygiene ush
unit A
Hygiene ush
unit B
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Off
1 = On
0 = Off
1 = On
0 = Closed
1 = Open
0 = Closed
1 = Open
31226
31227
31228
31229
31230
31231
31232
31233
31234
31235
31236
31237
27Data register tables
Description Range Holding Register 1-based Format
Read with function 03
Write with function 06
Manual capacity
unit A
Setpoint channel 1
unit A
Setpoint channel 2
limiter unit A
Actual humidity or
demand via Modbus
unit A
Actual humidity or
limiter via Modbus
unit A
P-Band unit A
(Proportionalband)
P-Band limiter unit A
(Proportionalband)
Integral time channel 1
unit A
Damp time channel 2
unit A
20 -100 % 40002
0 - 95 % 40003
10 - 95 % 40004
0 - 100 % 40005
0 - 100 % 40006
6 - 65 % 40017
6 - 65 % 40018
UInt16
1 - 60 min 40021
0 - 60 s 40022
Read:
0 = Off
1 = Initializing
2 = Busy
3 = Done
Remote Drain
Write:
0 = Off (operation)
1 = RS drain cylinder A
2 = RS drain cylinder B
3 = RS drain cylinder A + B
4 = RO ush
5 = RO fresh water automation
41701
28 Data register tables
8.4 Data register RO-A
Description Range Input Register 1-based Format
Operating status RO
Capacity RO 0 - 500 kg/h 31306
Next service RO 0 - 1’2000’000 h 31308
Operating hours RO 0 – 1’2000’000 h 31310
Inlet pressure (tap water) RO 0 – 10 bar 31312
Tank pressure (demineralized water)
RO
Overcurrent pump RO
Leak sensor RO
Pump RO
Inlet valve RO
Drain valve RO
Maintenance and
malfunctions status RO
Error code
2)
Read with function 04
0 = Initializing
1 = Diagnostic
2 = Stopped
3 = Standby
4 = Refreshing
5 = Flushing
6 = Producing
7 = Regenerating
0 – 10 bar 31314
0 = Fault
1 = Ok
0 = Fault
1 = Ok
1 = On
0 = Off
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Service Info
1 = Warning
2 = RO Service
5 = Activation Code
6 = Fault
0 = No error 31014
31305 UInt16
31300
31301
31302
31303
31304
31012
32-Bit Float
UInt16
2)
See Error code description in the malfunction list of the operation manual.
29Data register tables
8.5 Data register EL
Description Range Input Register 1-based Format
Operating status
unit A
Maintenance and malfunction status
unit A
Enable contact
unit A
Input signal channel 1
unit A
Limiter signal channel 2
unit A
System demand 0 - 100 % 30006
External safety loop
unit A
Blower ready
unit A
External fan
unit A
Enable contact
unit B
External safety loop
unit B
Blower ready
unit B
External fan
unit B
Contactor
unit A
Contactor
unit B
Inlet valve
unit A
Inlet valve
unit B
Drain pump
unit A
Drain pump
unit B
Read with Function 04
0 = Humidifying
1 = Idle
2 = Idle Drain
3 = Keep Warm
4 = Filling
5 = Draining
6 = Disabled
7 = Safety Loop
10 = Blower Pack
11 = Stopped
12 = Partial Drain
13 = Self Test
0 = Service Info
1 = Warning
2 = Service
3 = Fault
0 = Open
1 = Closed
0 - 100 % 30004
0 - 100 % 30005
0 = Open
1 = Closed (ok)
0 = Off
1 = On (ready)
0 = Off
1 = On
0 = Open
1 = Closed
0 = Open
1 = Closed (ok)
0 = Off
1 = On (ready)
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Closed
1 = Open
0 = Closed
1 = Open
0 = Off
1 = On
0 = Off
1 = On
31003
31004
30002
30007
30008
30009
30012
30017
30018
30019
31200
31201
31202
31203
31204
31205
5)
UInt16
30 Data register tables
Description Range Input Register 1-based Format
0 = Humidifying
1 = Standby
2 = Idle Drained
3 = Keep Warm
4 = Filling
Operating status
unit B
5 = Draining
6 = Disabled
31026
5)
7 = Safety Loop
10 = Blower Pack
11 = Stopped
UInt16
12 = Partial Drain
13 = Self Test
0 = Service Info
Maintenance and malfunction status
unit B
1 = Warning
2 = Service
31027
3 = Fault
Error code
Operating hours
unit A
Operating hours
unit B
Max. capacity
unit A + B
Max. capactiy
unit A/B
Actual capactiy
unit A
Actual capactiy
unit B
2)
0 = No error 31014
0 - 1'200'000 h 30100
0 - 1'200'000 h 30104
1)
1)
1)
1)
5 - 160 kg/h
10 - 360 lb/hr
5 - 45 kg/h
10 - 100 lb/hr
0 - 45 kg/h
0 - 100 lb/hr
0 - 45 kg/h
0 - 100 lb/hr
31050
32-Bit Float
31052
31054
31056
1)
According to the settings <Imperial> or <Metric> in the EL control unit
2)
See Error code description in the malfunction list of the operation manual.
5)
Software 5.7.x.x or higher required
Description Range Holding Register 1-based Format
Read with function 03
Write with function 06
Manual capacity
unit A
Setpoint channel 1
unit A
Setpoint channel 2
limiter unit A
20 - 100 % 40002
0 - 95 % 40003
10 - 95 % 40004
Actual humidity or
demand via Modbus
0 - 100 % 40005
unit A
Actual humidity or
limiter via Modbus
0 - 100 % 40006
UInt16
unit A
P-Band unit A
(Proportionalband)
P-Band Limiter unit A
(Proportionalband)
Integral time chanel 1
unit A
Damp time chanel 2
unit A
0 - 65 % 40017
0 - 65 % 40018
1 - 60 min 40021
1 - 60 s 40022
31Data register tables
9 Options
9.1 Galvanic Isolation Module
If there is a potential difference on the Ground (GND) between the Modbus devices, it's recommend
to use a galvanic isolation interface, e.g. the "Isolation Module" option. Beside the galvanic isolation
the "Isolation Module" option gives the possibility to activate a Bias Network. A Bias Network is able to
provide a dened voltage level to the bus, if no node is active. Per Network segment one Bias Network
only may be active.
Order number: 2585445 (RS485 Isolation Module)
9.2 Mounting the "Isolation Module" option
• Install the interface directly on port J6 "BMS"
• Jumper set = end of line termination resistor is activated
• DIP switches: Activate or deactivate the Bias Network (Position shown on the photo = deactivated)
• Remove jumper J4 on the Integrated Controller
32 Options
Fig. 4: Mounting the "Isolation Module" option
10 Test of the Modbus communication
Best is to check the Modbus communication in advance with a "Modbus Test Tool". For the tests, this
software is taking the function of the master station or of a client with Modbus TCP.
Unlike other bus systems, Modbus is having a lot of providers for such test tools. The handling of these
test tools is varying from producer to producer and cannot be described generally. However it's possible
to sum up some similarities, how test tools are working and what needs to be entered.
10.1 Modbus RTU Test
– Communication Gateway (Communications Port)
This Port is used for the serial communication between the device and a notebook or a PC, respectively. At Windows this information is given at the Windows Device Manager. The shown port for the
communication has to match with the setting of the test tool.
–
Baud Rate
The baud rate has to be set to the same value as the baud rate at the integrated controller (default
value ex-factory = 9600 baud). It's possible to change the baud rates, however they always have to
be equal at the integrated controller of the respective device and at the test tool.
–
Quantity of Data Bits
The number of data bits at the integrated controller is 8 and cannot be changed. The test tool must
be adjusted to the default setting of the respective device.
–
Quantity of Stop Bits
The number of stop bits at the integrated controller cannot be changed as well. There is always
1 stop bit used. The used stop bits have to be set at the test tool to value 1.
–
Parity
The the parity of the integrated controller is set ex-factory to "Even". The value can be adjusted. The
test tool has to show the same parity like the integrated controller of the respective device.
–
Modus protocol type
Most Modbus Master test tools are supporting the Modbus RTU telegram and the Modbus TCP or
even Modbus ASCII. Please make sure, that the modus is set on "RTU".
–
Entry of the Modbus Address
The Modbus address at the integrated controller is set ex-factory to 10. This address can be adjusted
from 1 to 247, however the value at the respective device and the one at the test tool have to be equal.
33Test of the Modbus communication
10.2 Modbus TCP Test
For the Modbus TCP test, less parameters need to be adjusted. However, it is important that the notebook and the corresponding device are in the same IP range. Therefore, assign a xed IP address to
the notebook in the network settings.
For the test, the notebook can be assigned to the same IP address range or you can use the following
default settings for notebook and device:
– Notebook:
IP Address: 192.168.168.242
Subnet mask: 255.255.255.0
Subnet mask: 192.168.168.101
– Device:
IP Address: 192.168.168.243
Subnet mask: 255.255.255.0
Standard gateway: 192.168.168.101
Note: The IP settings in the device and in the notebook must be reset to the original values after the test!
For the test of the Modbus TCP communication, the following additional parameters must be set in the
test tool:
– Modbus Protocol type
The protocol type must be set to Modbus TCP.
– IP Address of the device
According to the selected setting in the communication menu (see chapter 5.3)
– Modbus TCP Port
According to the Modbus TCP standard the default port is 502.
The port number may be set to a different value. It is important that the port number in the Modbus
TCP settings of the device is the same as the one in the test tool.
– Modbus Address
Imperatively set the Modbus address to 255 if this input is required in the test tool.
Caution: The Modbus address (alias Node ID, Slave ID, device address) must not be confused with
the IP address.
34 Test of the Modbus communication
10.3 Read out registers
The entry of the readable or the writable register is often generating problems. Therefore, please observe
the following notes
– The rst gure from the left shows the type of register. The device is using "Holding Register" 4 and
"Input Register" 3 only.
– The remaining gures are showing the number. Particular at the Modbus telegram is, that the num-
bering of the registers is not matching with the addressing. The listing of the numbering starts with
1 (1-based), the listing of the addressing with 0 (0-based). In the register tables of this manual the
registers are always shown 1-based.
That means, register 41008 has the address 1007 and the number 1008.
– Example Register 41008
4 = Register type (4 = Holding Register)
1008 = Number (or Address 1-based)
1007 = Address
– Example Register 31014
3 = Register type (3 = Input Register)
1014 = Number (or Address 1-based)
1013 = Address
It is therefore important to take notice whether the register, the number or the address must
be entered in the test tool used.
Note: The format described above describes the register specications according to the Modicon 5-digit
standard. All devices described in this manual use this type of register.
10.4 Function
In order to be able to read out the value from the Modbus register, there are usually two different input
variants, which differ depending on the test tool used:
• Version 1:
Entry of the function + entry of the address or number
With this type, you rst enter the function in a single eld and the address or number in a second
input eld. Which function ts to which register is best taken from the tab tables.
e.g. Function 03 + number 1008 = 41008
Please note that holding registers are read with function 03, although for holding registers the rst
digit from the left is 4!
The other way round input registers, which start with 3, are read with the function 4.
• Version 2a:
Entry of the register e.g. 41008 and a negative offset
Register 41008 + Offset of -40001 results in address 1007
Register 41008 + Offset of -40000 results in address 1008
Register 31014 + Offset of -30001 results in address 1013
Register 31014 + Offset of -30000 results in address 1014
• Version 2b:
Selection of the register type 4 and a positive offset
Register type 4 + Offset of +1008 results in address 1008 respectively the register 41008.
10.5 Number of registers
For most of the test tools it's possible to enter the number of registers in an additional eld after the
selection of the rst register. If for example for the rst register 41008 is entered and under number of
registers 3, the data will be read from the registers 41008, 41009, 41010.
This procedure is very comfortable, as it's not necessary to enter each address separately, however it
bears the risk of errors.
If for example the register 41009 is missing, or if it's blocked by Condair, the test tool is displaying an
error! It's advisable to rst check separate registers and afterwards to look for connected register ranges.
General rule: Each readable register has to be part of the register table of the respective device.
10.6 32-Bit Float Register
Here it must be considered, that for the transfer of 32-bit oat values always two consecutive registers
have to be transmitted, as one register has 16 bit only.
In order to transmit a 32-bit oat value, for example the operating hours of the DL, the registers 31308
and 31309 are required.
Note: For some test tools the "Number of registers" must be set to 2 in order to read out 32-bit oat
registers.
10.7 Test tool variety
The variants shown above are not nal, but are covering a big amount of test tools, which are available
on the market. If you should need any further information regarding test tools, please read rst the
operating instructions of the used test tool.
A detailed description for a test tool is available from Condair Group AG. Unfortunately we're not allowed
to publish pictures of all test tool manufacturers. Therefore we concentrate on a commercial test tool,
which is available online and which is fullling the requirements for the test of the communication with
our devices.
If required, ask for the additional operating instructions. These describe in detail the use of the test tool
"Modbus Poll".
Notes
Notes
CONSULTING, SALES AND SERVICE:
Condair Group AG
Talstrasse 35-37, 8808 Pfäfkon SZ, Switzerland
Phone +41 55 416 61 11, Fax +41 55 416 62 62
info@condair.com, www.condair.com
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