Huber Profibus SE Service manual

Technical Bulletin
Profibus®
Gateway SE
V1.2.0

TECHNICAL BULLETIN
Profibus® Gateway SE Liability for errors and misprints excluded. V1.2.0en/05.02.16
2

TECHNICAL BULLETIN
V1.2.0en/05.02.16 Liability for errors and misprints excluded. Profibus® Gateway SE
3
Profibus®
Gateway SE

TECHNICAL BULLETIN
Profibus® Gateway SE Liability for errors and misprints excluded. V1.2.0en/05.02.16
4

TECHNICAL BULLETIN
V1.2.0en/05.02.16 Liability for errors and misprints excluded. Profibus® Gateway SE
5
Table of Contents
V1.2.0en/05.02.16
1Description ..................................................................................6
2Information on the functioning of the Profibus Gateway SE ........6
2.1 Position of the Profibus Gateway SE within the data transmission ..................6
3Installation instructions ...............................................................7
3.1 Installation provided by the customer ............................................................7
4Commissioning of the Profibus Gateway SE.................................7
5Integration into the process automation system...........................8
5.1 Basic mode of operation of the Profibus Gateway SE......................................8
5.2 Description of the standard variant ................................................................8
6Properties of standard variables ..................................................9
6.1 “vSP” – Setpoint, temperature controller .......................................................9
6.2 “vTI” – Internal temperature ..........................................................................9
6.3 “vpP” – Pump pressure (absolute) ..................................................................9
6.4 “vError” – Error report ...................................................................................9
6.5 “vWarn” – Warning message..........................................................................9
6.6 “vTE” – Process temperature (Lemosa)...........................................................9
6.7 “vStatus1” – Status of the thermostat ..........................................................10
6.8 “vTmpMode” – Temperature control mode.................................................. 10
6.9 “vTmpActive” – Temperature control ...........................................................10
6.10 “vSNRL + vSNRH” – Serial number ................................................................10
7Diagnostic functions ..................................................................11
7.1 On commissioning........................................................................................ 11
7.2 During operation.......................................................................................... 11
7.3 Troubleshooting........................................................................................... 11

Description
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1Description
Profibus DP is an established device for industrial applications. It is therefore of paramount im-
portance to integrate temperature control units in automation solutions as simple, flexible and pro-
cess-oriented as possible. The excellent standardization of Profibus DP results in very short start-up
times in the field. When delivered, the Profibus Gateway SE can be immediately integrated via the
configuration software using the GSD file.
Setpoints, actual values and control functions are defined. This results in the programming of the
Profibus Gateway SE and the creation of the GSD file. The standard version presented is designed to
cover a large number of process requirements. We can offer a customized version if you have addi-
tional requirements. Please note the inherent restrictions of E-grade “Basic”, E-grade “Exclusive”
and DV-E-grade. For more information, please refer to the data in the Data Transmission Manual at
www.huber-online.com.
2Information on the functioning of the Profibus
Gateway SE
2.1 Position of the Profibus Gateway SE within the data transmis-
sion
There are two participants from the viewpoint of the Profibus Gateway SE: The Profibus device (PLC
as PB master) and the temperature control unit with RS-232 communication (slave). Moreover, the
temperature control unit must be controlled and measures have to be taken in case a failure occurs.
The temperature control unit receives the information from the Profibus Gateway SE. The PLC does
not directly access the temperature control unit.
Schematic structure

Installation instructions
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3Installation instructions
3.1 Installation provided by the customer
The Profibus Gateway SE is installed in a stainless steel housing with a mains socket for fee-standing
installation or for hanging it to the side wall of the device. The device is connected via a 3 m RS-232
cable.
The Profibus cable with D-SUB 9 connector is routed directly to the Profibus Gateway SE. The user
must guarantee compliance with the Profibus parameters and the bus topology in accordance with
the requirements of the PROFIBUS user organization. A bus termination can be enabled on the Pro-
fibus Gateway SE. The Profibus Gateway SE has been built and qualified in accordance with the spec-
ifications of the PROFIBUS user organization. The customer must comply with the applicable stand-
ards for the internal wiring of the device. This applies in particular to a well-functioning functional
earth and potential equalization.
4Commissioning of the Profibus Gateway SE
There are five controls on the front side of the Profibus Gateway SE. These must have the following
positions:
Element
Position
S4
0
S5
0
Termination
Depending on the position of the Profibus Gateway SE within the bus
ID High
Profibus slave address
ID Low
Position of the control
elements

Integration into the process automation system
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5Integration into the process automation system
For process control purposes it is important that the relevant process data are available in the PLC
map. The GSD file describes the number of input and output bytes of the Profibus Gateway SE. The
configuration software determines how to integrate the GSD file.
In regards to the data transmission, the temperature control unit is generally a slave. The Profibus
Gateway SE works with 9600 Bd on the RS-232 side. The interface parameters on the temperature
control unit must be set accordingly. Process variables may be E-grade and device dependent.
All provisions of the temperature control unit’s operating manual must be complied with.
5.1 Basic mode of operation of the Profibus Gateway SE
The Profibus Gateway SE constantly updates the process variables of the temperature control unit.
The actual process parameters are therefore always available when retrieving the process image.
The temperature control unit can immediately return the current process values when a Profibus
frame is received. On the other hand, the update loop sends the new process values to the tempera-
ture control temperature control unit. This data loop runs at about 300 ms per process value.
5.2 Description of the standard variant
For more information, please refer to the data in the Data Transmission Manual at www.huber-online.com.
From
E-grade
Ad-
dress
(hex)
Variable Description Variable type Unit LSB
Location in the
table according
to GSD
R
W
Basic 00 vSP
Setpoint, temperature
controller
Process value °C 0,01 °C 1 1
Basic
01
vTI
Internal temperature
Process value
°C
0,01 °C
2
-
Basic
03
vpP
Pump pressure (absolute)
Process value
mbar
1 mbar
3
-
Basic
05
vError
Error report
Process value
-
1
4
-
Basic
06
vWarn
Warning message
Process value
-
1
5
-
Basic 07 vTE
Process temperature
(Lemosa)
Process value °C 1 °C 6 -
Basic
0A
vStatus1
Status of the thermostat
Process value
-
-
7
-
Exclusive
13
vTmpMode
Temperature control mode
Process control
-
1
8
2
Basic
14
vTmpActive
Temperature control
Process control
-
1
9
3
Basic
1B
vSNRL
Serial number (low)
-
-
1
10
-
Basic
1C
vSNRH
Serial number (high)
-
-
1
11
-
INFORMATION
.
Standardvarianten

Properties of standard variables
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6Properties of standard variables
6.1 “vSP” – Setpoint, temperature controller
The setpoint is used by the temperature controller. With internal regulation, the setpoint applies for
the internal temperature, with process regulation it applies for the process temperature.
Please note: The setpoint specification can be overwritten by other setpoint indicators (e.g. temper-
ature control program, analog 4…20 mA interface, …).
6.2 “vTI” – Internal temperature
From the point of view of the temperature control device, the current temperature of the thermal
fluid which is flowing to the application. The internal temperature is sometimes also called the flow,
jacket or bath temperature.
6.3 “vpP” – Pump pressure (absolute)
Absolute pump pressure at the pressure sensor in the thermal fluid circuit of the thermostat (only if
there is a pressure sensor).
6.4 “vError” – Error report
The number of the error report that appeared first.
If 0 is returned, no error has occurred and the device is ready for use; otherwise, the nature of the
error can be determined by the number.
6.5 “vWarn” – Warning message
The number of the most recent warning message to appear.
The thermostat may possibly require your attention if a number that is not 0 is returned. If 0 is re-
turned, no new warning has been issued, otherwise the nature of the warning can be determined by
the number. If the warning was requested, 0 is returned at the next inquiry again unless a new
warning has been issued.
6.6 “vTE” – Process temperature (Lemosa)
The current process temperature is returned.
Strictly speaking, the measured value of the Pt100 sensor which is connected to the LEMOSA con-
nector is returned. Typically the processor sensor is connected here.
If no sensor is connected, the value -151 °C is returned.

Properties of standard variables
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6.7 “vStatus1” – Status of the thermostat
Query current thermostat status.
The returned value is a bit field. The individual bits must be considered independently of each other.
Bit Meaning
Explanation
“1”
“0”
0
Temperature control operating mode
active
Inactive
1
Circulation operating mode
active
Inactive
2
Refrigerator compressor
enabled
disabled
3
Temperature control mode “Process control”
active
Inactive
4
Circulating pump
enabled
disabled
5
Cooling power available
available
unavailable
6
Tkeylock
active
Inactive
7
PID parameter set, temperature controller
automatic mode
expert mode
8
Error
fault occurred
no fault
9 Warning
new warning
received
no new warning
10
Mode for presetting the internal temperature
active
inactive
11
Mode for presetting the external temperature
active
inactive
12
DV E-grade
activated
not activated
14
Restart electronics / Power failure (*)
no restart
restart
15
Freeze protection (not available on all devices)
active
inactive
(*) This bit is reset to 0 when the control is restarted. If the variable vStatus1 is read for the first time after a
restart, this bit has not been set. In all further reading procedures, this bit will send back a 1. In this way, an
unexpected restart can be recognized.
6.8 “vTmpMode” – Temperature control mode
Set and query the temperature control mode of the thermostat.
0: Temperature control mode internal
1: Temperature control mode process (cascade control)
6.9 “vTmpActive” – Temperature control
Start or stop temperature control of the thermostat or query current status.
0: Temperature control not active
1: Temperature control active
6.10 “vSNRL + vSNRH” – Serial number
Query the serial number of the thermostat.
Because the serial number can have larger values than 65535 but only 2 bytes per variable are available,
the serial number is made up of 2 data words (Low + High) each with 2 bytes into a 4 byte value.
Variable 0x1B (vSNRL) contains the low value bytes, Variable 0x1C (vSNRH) contains the high value bytes.
“vStatus1”

Diagnostic functions
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7Diagnostic functions
7.1 On commissioning
The LEDs 1 (LSB), 2, 4 and 8 show the binary value of the version stored in the module if the Profibus
plug is unplugged and the position of the two switches S4 and S5 is set to zero. The standard version
has the number 1. The module immediately goes into communication mode with the device con-
nected to the serial interface if switch S4 is set to zero and the switch S5 to one before applying the
operating voltage. This tests the wiring to the temperature control unit. LED “8” has a special role. It
is illuminated when a command is sent from the Profibus Gateway SE via the serial interface and
turns off after a response has been received.
The Profibus plug must not be plugged in when in this mode!
To exit this mode, reset the two switches S4 and S5 to zero and interrupt the operating voltage for
about 30 seconds.
7.2 During operation
When communication is transmitted via the Profibus - recognizable by the green illuminated LEDs
Bus and State - LED “8” signals a communication of the Profibus Gateway SE via the serial interface.
The procedure is the same as described above.
7.3 Troubleshooting
Verify on the Profibus side whether the bus termination is set correctly. A difference between the
GSD file and the program in the Profibus Gateway SE may cause bus errors or incorrect data content.
The version is specified in the GSD file. It can be checked with the diagnostics function.

Diagnostic functions
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Peter Huber Kältemaschinenbau AG
Werner-von-Siemens-Straße 1
D-77656 Offenburg / Germany
tel. [phone]
fax [phone]
e-mail: [e-mail]
www.huber-online.com
Hotline: [phone]