MSR ELECTRONIC Intec Controls PolyGard 2 GC-06 Series User manual

User Manual
PolyGard®2 DGC6
Digital Gas-Controller-Series GC-06 Modbus
Modbus Supplement
Version:
2022-04
Release date:
2022-04-05
Language:
English
Name of file:
GA_GC06_Modbus_supple-
ment_E
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
December 09, 2022 – Revision

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Table of Contents
1 General........................................................................................................................................ 4
1.1 Safety........................................................................................................................................................4
1.2 Responsibility Installer and Operator...............................................................................................4
1.3 Maintenance............................................................................................................................................4
1.4 Limited Warranty ...................................................................................................................................5
1.5 Dispose of Device ..................................................................................................................................5
2 Serial Modbus Interface at the X-BUS......................................................................................... 6
3 Modbus Function 03 (Reading of Registers)............................................................................... 6
3.1 Current value of digital sensors –sensor addresses 1–96, Modbus register addr. 1001–
1096....................................................................................................................................................................6
3.2 Current value of analog sensors –sensor addresses 1–32, Modbus register addr. 2001–
2032....................................................................................................................................................................6
3.3 Average value of digital sensors –sensor addr. 1–96, Modbus register addr. 3001–3096 7
3.4 Average value of analog sensors –sensor addr. 1–32, Modbus register addr. 4001–40327
3.5 Measuring range of digital sensors–sensor addr. 1–96, Modbus register addr. 5001–
5096....................................................................................................................................................................7
3.6 Measuring range of analog sensors –sensor addr. 1–32, Modbus register addr. 6001–
6032....................................................................................................................................................................7
3.7 Display of the alarms and the respective latching bits of digital sensors...............................8
3.8 Display of the alarms and the respective latching bits of analog sensors ..............................8
3.9 Relay status of the signal relays –signal relay addr. 1–96, Modbus register addr. 7001–
7096....................................................................................................................................................................9
3.10 Relay status of the alarm relays –alarm relay addr. 1–32, Modbus register addr. 8001–
8032....................................................................................................................................................................9
3.11 Error codes, Modbus register addresses 9000–9104 ...................................................................9
3.12 DGC-06 Watch Outputs (WI), Modbus register addresses 50–57........................................... 11
3.13 Data block: Output.............................................................................................................................. 11
4 Modbus-Function 05 (Write Single Coil) ..................................................................................12
4.1 Acknowledgement of latching mode ............................................................................................. 12
4.2 Acknowledgement of horn ............................................................................................................... 12
4.3 Activation of the single Watch Output via Modbus.................................................................... 12
5 Modbus Function 06 (Write Single Registers).......................................................................... 12
6 Modbus-Function 15 (Write Multiple Coils) ............................................................................. 12
7 Modbus Function 16 (Write Multiple Registers) ...................................................................... 12
List of Revisions .................................................................................................................................. 12
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GA_GC06_Modbus_supplement_E, 2022-04-05 | USA 221209 | Page 3of 12
DGC6 Modbus Supplement – UserManual

1 General
1.1 Safety
The operating instructions must be carefully read and followed by all persons who install, use, main-
tain and check the product.
The product can only fulfill its intended functions if it is installed, used, maintained, cared for and
checked in accordance with the instructions provided by INTEC Controls | MSR-Electronic GmbH.
1.2 Responsibility Installer and Operator
It is the responsibility of the installer and operator to ensure that all PolyGard®2/PolyXeta®2 equip-
ment is installed and used in compliance with all national and local codes. The device must be
checked for correct installation and functionality by a qualified person before measurement opera-
tion is started. In Germany, BGR 500 Chapter 2.33 must be applied for this purpose.
The PolyGard2 devices are tested for function by the manufacturer before delivery. During commis-
sioning, a documented functional test is also required. The installation should only be carried out by
trained installation technicians, taking into account the current safety procedures for control instal-
lations.
The required equipotential bonding connections (also e.g. secondary potential to ground) or ground-
ing measures are to be carried out according to the respective project regulations. It must be ensured
that no ground loops are created in order to avoid undesired interference in the measurement elec-
tronics.
It is necessary to follow all instructions as well as the user documentation.
1.3 Maintenance
It is recommended that PolyGard®2/PolyXeta®2 equipment be inspected on a regular basis. Perfor-
mance deviations can be corrected based on regular maintenance. Recalibration and parts replace-
ment can be performed in the field by a qualified technician using the appropriate tools.
Alternatively, the easily removable, plug-in sensor head can be returned to INTEC Controls |
MSR-Electronic GmbH for service.
Regular maintenance is to be carried out according to the instructions.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GA_GC06_Modbus_supplement_E, 2022-04-05 | USA 221209 | Page 4of 12
DGC6 Modbus Supplement – UserManual

1.4 Limited Warranty
INTEC Controls | MSR-Electronic GmbH does not assume any liability in case of improper or
incorrect use of the de-vice. The installer and operator are exclusively responsible for the design
and use of the product. If the product is not used, maintained or repaired in accordance with the
instructions for use, warranty and product liability claims as well as claims arising from any
guarantees assumed by INTEC Controls | MSR-Electronic GmbH for the product will be forfeited.
INTEC Controls | MSR-Electronic GmbH warrants PolyGard®2/PolyXeta®2 devices against defects in
material or work-manship for a period of 2 years (1 year for sensors) from the date of shipment.
Should a defect in material or workmanship occur during the warranty period, INTEC Controls |
MSR-Electronic GmbH will repair or re-place the unit at its option. This warranty does not apply to
units that have been modified, after repair attempts, or that have been damaged unintentionally
or intentionally. The warranty also does not apply to units in which the sensing element has
been poisoned. The above warranty is in lieu of all other express warranties, obligations or
liabilities.
A pre-authorized RMA number issued by INTEC Controls is required for returns.
This warranty applies only to PolyGard®2/PolyXeta®2 units. INTEC Controls | MSR-Electronic
GmbH is not liable for consequential damages resulting from the purchase or use of
PolyGard®2/PolyXeta®2 devices.
1.5 Dispose of Device
In accordance with Directive 2012/19/EU, the device must not be disposed of as
municipal waste. Return the device for disposal to your national sales organisa-
tion, which you can contact if you have any questions about disposal.
Outside the EU, you have to consider the corresponding directives.
In accordance with Directive 2012/19/EU, the device must not be
disposed of as municipal waste. Return the device for disposal to your
national sales organization, which you can contact if you have any
questions about disposal.
Outside the EU, you have to consider the corresponding directives.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GA_GC06_Modbus_supplement_E, 2022-04-05 | USA 221209 | Page 5of 12
DGC6 Modbus Supplement – UserManual

2Serial Modbus Interface at the X-BUS
This functionality is available from display version 1.00.06
on. The standard protocol for an additional serial port of the
gas controller X bus is ModBus RTU.
Definition of communication
The gas controller operates at the interface X bus only
as
Modbus slave.
Baud rate 19,2
00 baud
1 start bit, 8 data bits
1 stop bit, even parity
Figure 1: Connection Setup
Figure 2: Modbus-Master
Modbus-Master-Controller:
The Modbus master controller must have a resistor matrix at the
fieldbus terminals as shown in the drawing on the right, so that the
voltage level is maintained at min. 0.5 V at bus pin A when the driver
is inactive. The resistor circuitry is already integrated in a Modbus
master controller.
3Modbus Function 03 (Reading of Registers)
Read Holding Registers (reading of holding registers) is used to receive data from the DGC-06 sy-
stem. There are 9 data blocks:
3.1 Current value of digital sensors –sensor addresses 1–96, Modbus register addr. 1001–1096
3.2 Current value of analog sensors –sensor addresses 1–32, Modbus register addr. 2001–2032
Figure 3: Current value of analog sensors –sensor addresses 1–32, Modbus register addr. 2001–2032
2200 R
Intern
(Master Board)
Feldbus
560 R
2200 R
BUS_A
BUS_B
GND
+ 5 V
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DGC6 Modbus Supplement – UserManual

Representation of measured values:
The measured values are shown in the Integer format with a factor of 1, 10, 100 or 1000.
The factor depends on the respective measuring range and is used as follows:
Measuring range
Factor
1–9
1000
10–99
100
100–999
10
Ab 1000
1
If the value is below -16385, it is an error message and should be considered as a hexadecimal value
in order to break the errors down.
3.3 Average value of digital sensors –sensor addr. 1–96, Modbus register addr. 3001–3096
3.4 Average value of analog sensors –sensor addr. 1–32, Modbus register addr. 4001–4032
Figure 4: Average value of analog sensors –sensor addr. 1–32, Modbus register addr. 4001–4032
3.5 Measuring range of digital sensors–sensor addr. 1–96, Modbus register addr. 5001–5096
3.6 Measuring range of analog sensors –sensor addr. 1–32, Modbus register addr. 6001–6032
Figure 5: Measuring range of analog sensors –sensor addr. 1–32, Modbus register addr. 6001–6032
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DGC6 Modbus Supplement – UserManual

3.7 Display of the alarms and the respective latching bits of digital sensors
Display of the local alarms generated by the DGC-06 as well as of the respective latching bits of
digital sensors –sensor addresses 1 to 96, Modbus register addresses 1201 to 1296
3.8 Display of the alarms and the respective latching bits of analog sensors
Display of the local alarms generated by the DGC-06 as well as of the respective latching bits of
analog sensors –sensor addresses 1 to 32, Modbus register addresses 2201 to 2232
Figure 6: Display of the alarms and the respective latching bits of analog sensors
Here, the representation in the hexadecimal form is easier to read because the data are transmitted
in the following form:
0xFFFF =
0x
F
F
F
F
0b
1111
1111
1111
1111
Local latching
DGC-06 latching
Local alarms
DGC-06 Alarms
There are 4 status bits for the 4 alarm stages each.
1 = alarm or latching active
0 = alarm or latching not active
The above example:
There are 2 local alarms at DP1, with the 2. being in latching mode.
The 1. alarm generated by the DGC-06 is present at DP4.
The 1. alarm generated by the DGC-06 is present at AP5.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DGC6 Modbus Supplement – UserManual

3.9 Relay status of the signal relays –signal relay addr. 1–96, Modbus register addr. 7001–7096
3.10 Relay status of the alarm relays –alarm relay addr. 1–32, Modbus register addr. 8001–8032
Figure 7: Relay status of the alarm relays –alarm relay addr. 1–32, Modbus register addr. 8001–8032
The relay status of the controller’s fault message relay is in register 8000.
The following values are possible:
•-1: Relay is not active
•0: Relay is active, not energized
•1: Relay is active, energized
3.11 Error codes, Modbus register addresses 9000–9104
Figure 8: Error codes, Modbus register addresses 9000–9104
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DGC6 Modbus Supplement – UserManual

a) Register address 9000d: Local error of the connected GC device –errors apply to the devices
not to the readings of these devices.
Here 0x8110: 0x0100 => MP error, 0x0010 => EEPROM or configuration error.
Nibble 4: =x
8
110 Nibble 3: =x8
1
10 Nibble 2: =x81
1
0 Nibble 1: =x811
0
Bit 3
Bit 2
Bit 1
Bit 0
Bit 3
Bit 2
Bit 1
Bit 0
Bit 3
Bit 2
Bit 1
Bit 0
Bit 3
Bit 2
Bit 1
Bit 0
8
4
2
1
8
4
2
1
8
4
2
1
8
4
2
1
Error Indicator, always 1 for
failures
Error Indicator, always 0 for
failures
Not used Not used Special mode ON Not used UPS detected
(only information)
Failure in connected devices Maintenance information bit Not used Not used Configuration error or EE
Flash failure
Not used Power failure –battery mode Not used UPS error
b) Register address 9001d–9096d: Local error of the connected devices like WSB2, SB2 or
MSB2. The errors concern the devices, but not the errors of the heads, because these are dis-
played in the registers of the measured values.
c) Register address 9097d–9104d: Local error of the 8 Gas Controller Modules (1x GC06 +
7x EP06))
Here 0x8100 = MP error, Error with any locally connected MP.
Nibble 4: =x
8
100 Nibble 3: =x8
1
00 Nibble 2: =x81
0
0 Nibble 1: =x810
0
Bit 3
Bit 2
Bit 1
Bit 0
Bit 3
Bit 2
Bit 1
Bit 0
Bit 3
Bit 2
Bit 1
Bit 0
Bit 3
Bit 2
Bit 1
Bit 0
8
4
2
1
8
4
2
1
8
4
2
1
8
4
2
1
Error Indicator, always 1 for
failures
Error Indicator, always 0 for
failures
Horn
feedback error
Warning sign
feedback error
Special mode ON Not used Not used Failure in connected devices Maintenance information bit Over- / under- temperature failure Wrong analog output current or relay failure Configuration error or EE
Flash failure
CPU diagnostic errors Over- / undervoltage failure AD converter failure Not used
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GA_GC06_Modbus_supplement_E, 2022-04-05 | USA 221209 | Page 10 of 12
DGC6 Modbus Supplement – UserManual

3.12 DGC-06 Watch Outputs (WI), Modbus register addresses 50–57
In register 50, all watch outputs are shown as a byte as used for evaluation in
the DGC
-06 system.
In the registers 51
–
57 the individual bit values are available as Integer values.
0 or 0x0000 = No output set
1 or 0x0001 = Switch on by clock
256 or 0x0100 = Switch on by Modbus
257 or 0x0101= Switch on by Modbus and clock
Figure 9: DGC-06
clock outputs (WI)
Digital inputs are not represented in registers (only possible by assigning to a relay output and using
its output information).
3.13 Data block: Output
Address 0: Own slave Modbus address at the X Bus
Address 1: Relay information bits of the first module (Controller Module)
Relay 1 is bit 0 to relay 4 is bit 3
Address 2: Relay information bits of the extension module address_1
Relay 5 is bit 0 to relay 8 is bit 3
Address 3: Relay information bits of the extension module address_2
Relay 9 is bit 0 to relay 12 is bit 3
Address 4: Relay information bits of the extension module address 3
Relay 13 is bit 0 to relay 16 is bit 3
Address 5: Relay information bits of the extension module address_4
Relay 17 is bit 0 to relay 20 is bit 3
Address 6: Relay information bits of the extension module address_5
Relay 21 is bit 0 to relay 24 is bit 3
Address 7: Relay information bits of the extension module address_6
Relay 25 is bit 0 to relay 28 is bit 3
Address 8: Relay information bits of the extension module address_7
Relay 29 is bit 0 to relay 32 is bit 3
The addresses 9 to 24 stand for hardware analog output 1 to analog out-
put 16.
The definition of the values is done between 0 and 10000 (full scale
value of the sensor).
Figure 10: DCG06_REL_AO
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DGC6 Modbus Supplement – UserManual

4Modbus-Function 05 (Write Single Coil)
Write Single Coil (writing of single states ON/OFF) is used to acknowledge the latching mode or the
horns as well as to set clock outputs individually.
4.1 Acknowledgement of latching mode
For this purpose, the command 05 is sent to the address of the DGC-06 with the indication of the
respective chapter 3.7 or 3.8
The acknowledgment only takes place when the value ON(0xFF00) has been sent.
4.2 Acknowledgement of horn
For this purpose, command 05 is sent to the address of DGC-06 and register 0x7000.
The acknowledgment only takes place when the value ON(0xFF00) has been sent.
4.3 Activation of the single Watch Output via Modbus
For this purpose, the command 05 is sent to the address of the DGC-06 with the indication of the
respective chapter 3.12 with register 50 not being allowed.
5 Modbus Function 06 (Write Single Registers)
Write Single Registers (writing of single registers) is used to write on individual registers in the
DGC-06. Currently, it is only possible to write on the own slave address.
Modbus address 0 (see chapter 3.12).
6Modbus-Function 15 (Write Multiple Coils)
Write Multiple Coils (writing multiple states OFF/ON) is used to set all watch outputs at once. The
command must be sent to DGC-06 address with the indication of register 50 with a maximum length
of 7 bits.
7Modbus Function 16 (Write Multiple Registers)
Write Multiple Registers (writing of several registers) is used to write on several registers in the
DGC-06. Currently, it is only possible to write on the own slave address.
Modbus address 0 (see chapter 3.12).
All other parameter changes are not permitted for safety reasons; therefore, the data direction is
clearly defined from the warning system to the open Modbus side. Retroaction is not possible.
List of Revisions
Version
Date
Chapter
Changes
2022-04
05.04.2022
All
New Design
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GA_GC06_Modbus_supplement_E, 2022-04-05 | USA 221209 | Page 12 of 12
DGC6 Modbus Supplement – UserManual