VDH MC3-TM User manual

Description:
MC3
-
TM
Temperature Monitor
Pages:
16
Doc.nr:
131
083
Type:
Manual
By:
RK
Version:
V
2
.
1
File:
Do131
083
MC3
-
TM
Manual V
2
0
Signature:
Date:
07
-
1
2
-
201
5
VDH Products BV
MC3
-
TM
Manual

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
Page 2of 16
1.Table of contents
1. Table of contents...........................................................................................................................................................................2
2. Technical specifications ..............................................................................................................................................................3
3. Functional specifications............................................................................................................................................................4
4. Network settings............................................................................................................................................................................5
5. Internal settings / values.............................................................................................................................................................6
6. Service interface............................................................................................................................................................................8
6.1. Temperature Monitor config...................................................................................................................................................8
6.2. Config overview...........................................................................................................................................................................9
6.3. Hardware config..........................................................................................................................................................................9
6.4. Backup configuration..............................................................................................................................................................10
6.5. Restore configuration.............................................................................................................................................................10
6.6. Restart application..................................................................................................................................................................11
6.7. Modbus access .........................................................................................................................................................................11
6.8. Date/Time settings..................................................................................................................................................................12
7. Alarms.............................................................................................................................................................................................13
8. Diagrams of connections ..........................................................................................................................................................14
9. Dimensions....................................................................................................................................................................................16
The information contained in this document is assumed to be accurate. However VDH Products BV accepts
no liability for eventual mistakes or errors and has the right to change this document without notice.

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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2.Technical specifications
Type
MC3
-
TM
(
Temperature Monitor
)
Communication
TCP/IP and serial connection for service purposes
Power supply
12 VC DC
Power consumption
Measurement range
-
50.0°C / + 50.0°C
Accuracy
Inputs
2
x Pt1000
,
2
-
wire temperature sensors
2x Dig.
in, potential free contact
Outputs
1x Analog out for SSR (Solid State Relay)
7x Analog out (spare)
Housing
MC3
DIN
-
rail mounting
Dimensions
1
10 x 191 x 100mm (lhd)
Operating temperature
Operating RH

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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3.Functional specifications
The MC3-TM controller simultaneously monitors temperature sensors. It alarms when one or more of the
measured temperatures drops below the configured minimum or exceeds the configured maximum
temperature.
These minimum and maximum temperatures are configurable for both temperature measurements and
can be placed within the measurement range.
Also a delay can be configured in order to wait an amount of time before raising an alarm. This delay can
be set per measurement and for both the minimum and maximum temperature limit.
The MC3-TM will be connected to a TCP/IP network and can be set to use a static IP address or to use a
DHCP server to obtain one.
Settings can be read out and altered using a software program which connects to the MC3-TM using the
Modbus TCP protocol. Using this program also measured values can be read.
The MC3-TM also provides a service interface using an embedded webserver to enable the user to view
and alter advanced settings.

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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4.Network settings
In order to make a connection to the controller, it must be given an IP address. The IP-address can be
configured using “VDH IP configurator” (VDH_Conf).
This program can search for connected VDH MC3 controllers and using the MAC-address of the MC3, the
IP-address can be obtained.
Start the program and select an interface. Press scan to search for available MC3 controllers. All found
devices will be listed. Both MAC-address and IP address will be shown.
The MAC-address of the MC3-TM is printed on a sticker which is placed on the mainboard. Using this
MAC-address, the device can be selected in the list.
Select the device and alter the network settings as desired. Enter the password and click on the button
“Set” to change the network settings of the selected MC3.

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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5.Internal settings / values
The internal setting can be adjusted using Modbus TCP on the default port 502.
The following settings can be adjusted using Modbus function to modify registers.
Nr Description Mode Repr *2) Range Unit Default
01
Offset temp
erature sensor cold water
R/W
A
-
15,0 .. 15,0
°C
0,0
02
Offset temperature sensor hot water
R/W
A
-
15,0 .. 15,0
°C
0,0
10
Minimum alarm temperature cold water
R/W
A
-
50,0 .. 50,0
°C
0,0
11
Maximum alarm temperature cold water
R/W
A
-
50,0 .. 50,0
°C
10,0
12
Minimum alarm temperature hot water
R/W
A
-
50,0 .. 50,0
°C
30,0
13
Maximum alarm temperature hot water
R/W
A
-
50,0 .. 50,0
°C
40,0
20
Minimum alarm delay cold water
R/W
B
0 .. 99
Minutes
0
21
Maximum alarm delay cold water
R/W
B
0 .
. 99
Minutes
0
22
Minimum alarm delay hot water
R/W
B
0 .. 99
Minutes
0
23
Maximum alarm delay hot water
R/W
B
0 .. 99
Minutes
0
91 Log interval R/W B 1 .. 120 Minutes 1
95
Software version
R
B
-
-
-
96
Serial number
R
B
-
-
-
97
Production d
ate
R
B
-
-
-
100
Errors
Bit 0 – Cold water temperature sensor defect
Bit 1 – Hot water temperature sensor defect
Bit 2- Minimum alarm cold water
Bit 3 – Maximum alarm cold water
Bit 4 – Minimum alarm hot water
Bit 5 – Maximum alarm hot water
Bit 6 – Communication error 1
Bit 7 – Communication error 1
Bit 8 – Communication error 1
R/W
*1)
C
-
-
0

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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The controller also offers functionality to readout measurement values.
These values can be read by using Modbus functions to readout actual values.
Nr Description Repr *2) Range Unit
01
T
emperature cold water
A
-
5
0
,0 .. 5
0
,0
°C
02
T
emperature hot water
A
-
5
0
,0 .. 5
0
,0
°C
03
Minimum alarm temperature cold water
A
-
50,0 .. 50,0
°C
04
Maximum alarm temperature cold water
A
-
50,0 .. 50,0
°C
05
Minimum alarm temperature hot water
A
-
50,0 .. 50,0
°C
06
Maximum alarm temperature hot water
A
-
50,0 .. 50,0
°C
07
Minimum alarm delay cold water
B
0 .. 99
Minutes
08
Maximum alarm delay cold water
B
0 .. 99
Minutes
22
Minimum alarm delay hot wa
ter
B
0 .. 99
Minutes
23
Maximum alarm delay hot water
B
0 .. 99
Minutes
91 Log interval B 1 .. 120 Minutes
95
Software version
B
-
-
96
Serial number
B
-
-
97
Production date
B
-
-
*1) Modbus register 100 can only be written with the value 0.in order to acknowledge the
present errors. Writing any other value will result in an “Invalid value” fault.
*2) repr = Representation:
A = fixed point, single decimal (2-complement)
B = whole number
C = bit representation (non listed bits are reserved and should be ignored)

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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6.Service interface
The MC3-TM is not equipped with an display in order to change settings or read measured values.
Settings for manipulating the control process can be accessed by Modbus as well as the measured
values. Advanced settings like connections, system time, and selecting who is allowed to access the
MC3-TM by Modbus can be done in the service interface which is accessible using a conventional web
browser on a PC. By entering the IP-address in a browser the service interface can be accessed.
Access to the shown service interface is obtained by using the following URL:
(http://192.168.250.245/config)
On the left of the screen different configurations can be selected
6.1. Temperature Monitor config
This screen shows how the MC3-TM uses the available connections (e.g. how to connect the
temperature sensors and alarm output).
The available options are shown and every configured connection is shown in green. As soon as
one of the options is not configured to use a hardware number, it will be show in grey, indicating it
is not used.
For example, if “Temperature sensor hot water” has no value for “Hardware number”, it will be
shown in grey and the controller will not monitor this sensor anymore and no alarm will be given
for reaching alarm temperatures.

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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The option “Alarm” has the possibility to change the mode. The available choices are “watch
alarm” and “control alarm”. Using watch alarm the analog output that controls the alarm relay will
be set to 10V when there is no alarm and it will be set to 0V when an alarm occurs.
By default the alarm output is set to the first output (on the left of the output board), but when
another output should be used, the value of hardware number can be changed likewise. For the
alarm output 8 options are possible since the output board has 8 analog outputs.
By selecting the button “Submit” at the bottom the selected configuration will be saved on the
MC3-TM and it is ready for use.
It will be used when the MC3-TM is rebooted or when the control application is restarted.
(see 6.6 Restart application).
6.2. Config overview
This screen shows an overview of the same configuration used in the “Temperature Monitor
config” screen, but here it is shown from a connection point of view. It gives an overview of where
to connect which sensor, input switch, of output.
6.3. Hardware config
The “Hardware config” screen shows which I/O hardware is available and should only be altered if
hardware is changed/replaced and only in consulting with VDH Products.

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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6.4. Backup configuration
The “Backup configuration” screen gives the possibility to make a backup of the current settings
and software. This backup can be used to restore all settings to another MC3-TM in case of a
hardware failure. When backups are made, they will be show in this screen and they can be
downloaded to a PC. Saving a backup on another system than the MC3-TM is recommended to be
able to restore the backup in case of a hardware failure.
6.5. Restore configuration
The “Restore configuration” screen provides the possibility to restore a backup which was
previously made. Backups which are stored on the MC3 can be selected or a backup file which was
stored on a local PC can be uploaded and used as well. Restoring backups should only be done in
consulting with VDH Products.

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6.6. Restart application
After restoring a backup or after changing the “Temperature Monitor config” the new configuration
should be used by the controller. By pressing the “Restart the application” button, the
controlprocess on the MC3-TM is stopped and started again using the new configuration.
6.7. Modbus access
By default no system has Modbus access to the MC3-TM. In order to give a system access to the
Modbus registers and values, its access needs to be granted. On the “Modbus access” screen this
access can be granted.
Enter an IP address in the field at the top (“Enter IP number to give access:”) and press the button
“Submit”. The entered IP address will be added to the list of permitted systems. If the newly
entered IP address is not shown directly in the whitelist (list of permitted systems), press the
“refresh” button, to refresh the list.
To remove a system from the whitelist, select the radio button in front of its IP address and press
the button “remove”.

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6.8. Date/Time settings
The MC3-TM also builds up logfiles which can be retrieved by VASP (VDH Alfanet Server Program).
For building these logfiles it needs to store the correct date and time in the logfiles. The screen
“Date/Time settings” offers the possibility to change the internal date and time settings of the
MC3-TM. The options at the top of the screen show the settings for manually setting the date and
time. By pressing the button “Update values” the displayed date and time are refreshed, and by
pressing the button “Set time” the entered values are used in the MC3-TM for date and time.
When a timeserver is present in the network, it can be used to synchronize time. In order to use the
timeserver, enter its name or IP address in the fields and press “Test TimeServer”. The controller
will try to reach the timeserver and progress will be shown in the field below. When the controller
was able to reach the timeserver and request its time, it can be used by pressing the button “Set
TimeServer”.
When the controller should no longer use the configured timeserver, empty the field and press the
button “Set Timeserver”.

Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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7.Alarms
In case a measured temperature value reach one of the alarm temperatures the alarm output is
triggered. It lowers or raises the output voltage according to the configured value (see 6.1 Temperature
Monitor config).
A single alarm output is used for any combination of errors.
The alarm value can be read by reading Modbus register 100. Each bit represents a different alarm.
The possible errors are:
Bitnr Description Cause Solution
0
Cold water temperature
sensor defect
The measured
cold water
temperature is outside the
controller temperature range (-50.0
°C - +50.0 °C). Either the sensor is
defect, not correctly connected or a
wrong sensor type is connected.
Check the sensor connection
or replace the sensor.
1
Hot water temperature
sensor defect
The measured hot water
temperature is outside the
controller temperature range (-50.0
°C - +50.0 °C). Either the sensor is
defect, not correctly connected or a
wrong sensor type is connected.
Check the sensor connection
or replace the sensor.
2
Minimum alarm cold
water
The measur
ed cold water
temperature is below the configured
minimum alarm value.
Raise the temperature of the
cold water or lower the
minimum alarm temperature
value (Reg 10).
3
Maximum alarm cold
water
The measured cold water
temperature is above the configured
maximum alarm value.
Lower the temperature of the
cold water or raise the
minimum alarm temperature
value (Reg 11).
4
Minimum alarm hot
water
The measured hot water
temperature is below the configured
minimum alarm value.
Raise the temperature of the
hot water or lower the
minimum alarm temperature
value (Reg 12).
5
Maximum alarm hot
water
The measured hot water
temperature is above the configured
maximum alarm value.
Lower the temperature of the
hot water or raise the
minimum alarm temperature
value (Reg 13).
6
Communication error 1
An internal communication error
occurred.
Reset the error and if it
persists, contact VDH
Products.
7
Communication error 2
An internal communication error
occurred.
Reset the error and if it
persists, contact VDH
Products.
8
Communication error 3
An internal communication error
occurred.
Reset the error and if it
persists, contact VDH
Products.
When an alarm occurs, it can be acknowledged by writing the value 0 (zero) to the Modbus register 100.
The alarm output value will return to normal directly, while the value in the Modbus alarm register will stay
the same until the alarm situation has been solved.

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8.Diagrams of connections
The MC3-TM controller consists of two different PCB’s. A Processor board at the bottom and a sensor
board at the top. These diagrams from connection drawing 131081w2 shows how to make the
connections to these boards.

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Manual MC3-TM Temperature Monitor Documentnr.: 131083 version 2.1
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9.Dimensions
Drawing with dimension of the MC3-TM housing.