JUMO mTRON T User manual

JUMO mTRON T
Measuring, Control, and Automation System
Central Processing Unit
Interface Description
Modbus
70500100T92Z001K000
V2.00/EN/00575586

3
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1 Available technical documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Content of the technical documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2 Connecting interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.1 Position of the interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Interface assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.4 Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.5 Ethernet settings for Modbus/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3 Modbus protocol description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
3.1 Master/slave principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2 TRU transmission mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3 Temporal sequence of communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4 Structure of a Modbus telegram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.5 Device address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.6 Function codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.7 Transmission formats (integer, float, double, and text values) . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.8 Checksum (CRC16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.9 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4 Serial transmission modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
4.1 Modbus master operation via serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2 Modbus slave operation via serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3 PLC access to the serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.4 RS232 and RS422/485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5 Ethernet transmission modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
5.1 Modbus/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.2 Networking with Modbus/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.3 Modbus master with Modbus/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.4 Modbus slave with Modbus/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.5 HTTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.6 Browser connection and Web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.7 E-mail (SMTP and POP3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6 User frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
6.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.2 Structure of the reading and writing processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.3 Compiling Modbus frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Contents
4
6.4 Examples for the data transmission options with frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7 Modbus address tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
7.1 Data types and access types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
7.2 Central processing unit addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
7.3 Modbus addresses of other modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

5
1 Introduction
1.1 Available technical documentation
The documents specified below are available for the measuring, control, and automation sys-
tem (previous document number in parentheses).
1.1.1 General information
1.1.2 Base units
Product Type of documentation No. Printed PDF file
Measuring,
control, and
automation system
Data sheet 70500000T10... - X
System manual1
1Accessory subject to charge
70500000T90...
(B 705000.0) X-
Setup program manual 70500000T96...
(B 705000.6) -X
System description2
2Includes an overview of the purpose and content of all documents
70500000T98...
(B 705000.8) -X
Product Type of documentation No. Printed PDF file
Central
processing unit Data sheet 70500100T10... - X
Operating manual 70500100T90...
(B 705001.0) -X
Modbus interface description 70500100T92...
(B 705001.2.0) -X
PROFIBUS-DP interface description 70500103T92...
(B 705001.2.3) -X
digiLine interface description 70500106T92... - X
Installation instructions 70500100T94...
(B 705001.4) XX
CODESYS OPC server
operating manual 70500151T90... (B 705001.5.1) -X
Process engineering application
operating manual 70500152T90... - X
Operating manual
Thyristor power controller (type
70906x; integrationin the measuring,
control, and automation system)
70500153T90... - X

1 Introduction
6
1.1.3 Input/output modules
1.1.4 Special modules
Product Type of documentation No. Printed PDF file
Multichannel
controller module Data sheet 70501000T10... - X
Operating manual 70501000T90...
(B 705010.0) -X
Installation instructions 70501000T94...
(B 705010.4) XX
Relay module
4-channel Data sheet 70501500T10... - X
Operating manual 70501500T90...
(B 705015.0) -X
Installation instructions 70501500T94...
(B 705015.4) XX
Analog
input module
4-channel
Data sheet 70502000T10... - X
Operating manual 70502000T90...
(B 705020.0) -X
Installation instructions 70502000T94...
(B 705020.4) XX
Analog
input module
8-channel
Data sheet 70502100T10... - X
Operating manual 70502100T90...
(B 705021.0) -X
Installation instructions 70502100T94...
(B 705021.4) XX
Analog
output module
4-channel
Data sheet 70502500T10... - X
Operating manual 70502500T90... - X
Installation instructions 70502500T94... X X
Digital input/
output module
12-channel
Data sheet 70503000T10... - X
Operating manual 70503000T90...
(B 705030.0) -X
Installation instructions 70503000T94...
(B 705030.4) XX
Product Type of documentation No. Printed PDF file
Router module Data sheet 70504000T10... - X
Installation instructions 70504000T94...
(B 705040.4) XX

7
1 Introduction
1.1.5 Operating, visualization, recording
1.1.6 Power supply units
Product Type of documentation No. Printed PDF file
Multifunction
panel 840 Data sheet 70506000T10... - X
Operating manual 70506000T90...
(B 705060.0) -X
Modbus interface description 70506000T92...
(B 705060.2.0) -X
Installation instructions 70506000T94...
(B 705060.4) XX
Operating panels Data sheet 70506500T10... - X
Product Type of documentation No. Printed PDF file
24 V power supply
units Data sheet 70509000T10... - X
Operating instructions QS5.241 X -
Operating instructions QS10.241 X -

1 Introduction
8
1.2 Content of the technical documentation
The documentation for the measuring, control, and automation system is intended for plant
manufacturers and users with specialist training. It has a modular structure and comprises dif-
ferent sections.
In the following subsections, the various types of documents are listed (previous document
number in parentheses).
1.2.1 Device documentation in printed form
7050XX00T94... (B 7050XX.4)
Installation instructions
A hard copy of the installation instructions is included in the scope of delivery of every module.
The installation instructions describe the installation of the device and the connection of the
supply and signal cables. They also contain the order details and a list of technical data.
The scope of delivery for a power supply unit includes a hard copy of the operating instructions.
These include information on installation and electrical connection.
70500000T90... (B 705000.0)
System manual
A hard copy of the system manual can be provided as an accessory subject to charge.
The system manual describes the scope of services of the measuring, control, and automation
system and provides all information for project design and startup.
Index divider 1 "System description" summarizes the information applicable to all modules.
Module-specific descriptions in the following sections complement the specifications stated
here.
Index divider 2 "Setup program" describes the project design of the overall system.
1.2.2 Device documentation in the form of PDF files
The device documentation files specified below are saved as PDF files on the DVD contained
in the scope of delivery of a base unit.
70500000T10... (T 705000)
Data sheet
The data sheet provides general information on the measuring, control, and automation system
and forms the basis for plant planning and purchase decisions.
7050XX00T10... (T 7050XX)
Data sheet
The data sheets of the individual modules provide specific information, order details, and tech-
nical data.
70500000T98... (B 705000.8)
System description
The system description provides an overview of the measuring, control, and automation sys-
tem. It describes properties that affect the entire system or are equally applicable for all
modules.

9
1 Introduction
7050XX00T90... (B 7050XX.0)
Operating manual
The operating manuals of the individual modules contain all information on installation, electri-
cal connection, startup, operation, and – if required – parameterization and configuration.
7050XX0XT92... (B 7050XX.2.X)
Interface description
The interface description provides information about the use of that interface and on commu-
nication with other devices, superordinate systems or certain sensors.
7050XX00T94... (B 7050XX.4)
Installation instructions
The installation instructions describe the installation of the device and the connection of the
supply and signal cables. The instructions also contain a list of the technical data.
7050XX5XT90... (B 7050XX.5.X)
Operating manual (application)
The operating manual describes the use of a certain application (e. g. PLC application).
1.2.3 Documentation for optional software
The manuals specified below are available on the Internet as PDF files. They also form part of
the scope of delivery of the respective software.
70500000T96... (B 705000.6)
Setup program
The manual describes the function of the setup program.
70970100T90... (B 709701.0)
PC evaluation software PCA3000
The operating manual describes the operation and the features of the PC evaluation software.
The PC evaluation software helps to visualize and evaluate the recorded process data (mea-
surement data, batch data, messages, etc.).
70970200T90... (B 709702.0)
PCA communication software PCC
The operating manual describes the operation and the features of the PCA communication
software. The PCA communication software is responsible for the data transfer from a device
or system to a PC or to a network.
70075500T90... (B 700755.0)
Plant visualization software SVS3000
The operating manual describes the operation and features of the plant visualization software.
The plant visualization software is responsible for networking interface-ready process devices
with a PC.

1 Introduction
10
1.2.4 Device documentation on the Internet
All documents are available for download on the Internet at www.jumo.net.
Download procedure:
1.2.5 Training documents on the Internet
Training documents (eLearning courses) on various topics are available at www.jumo.net.
Procedure:
Step Action
1 On the JUMO website, enter the number of the relevant product group in the search field at
the top right (e.g. 705001 for the central processing unit) and start the search.
The search results are listed.
2 Select product (click the link).
3 In the "Documentation" dropdown list, select the desired documentation in the required
national language (click the link).
4 +++++Open the PDF document or save it as a file.
Step Action
1 On the JUMO website, navigate to the "Support/Services" area.
2 In the "Information & Training" menu on the left-hand side, select "eLearning courses".
3 Click the link "Review of our eLearning courses".
4 Select the desired eLearning course from the overview (click the link).
The presentation starts.

11
1 Introduction
1.3 Safety information
1.3.1 Warning symbols
1.3.2 Note signs
DANGER!
This symbol indicates that personal injury caused by electrical shock may occur if the re-
spective precautionary measures are not carried out.
WARNING!
This symbol in connection with the signal word indicates that personal injury may occur if the
respective precautionary measures are not carried out.
CAUTION!
This symbol in connection with the signal word indicates that damage to assets or dataloss
will occur if the respective precautionary measures are not taken.
CAUTION!
This symbol indicates that components could be destroyed by electrostatic discharge
(ESD = Electro Static Discharge) if the respective cautionary measures are not taken.
Only use the ESD packages intended for this purpose to return device inserts, assembly
groups, or assembly components.
READ DOCUMENTATION!
This symbol – placed on the device – indicates that the associated device documentation
has to be observed. This is necessary to recognize the kind of the potential hazards as
well as the measures to avoid them.
NOTE!
This symbol refers to important information about the product, its handling, or additional
use.
REFERENCE!
This symbol refers to further information in other sections, chapters, or manuals.
FURTHER INFORMATION!
This symbol is used in the tables and refers to further information in connection with the
table.
&
DISPOSAL!
This device and the batteries (if installed) must not be disposed in the garbage can after
use! Please ensure that they are disposed properly and in an environmentally friendly
manner.

1 Introduction
12

13
2 Connecting interfaces
2.1 Position of the interfaces
The central processing unit is equipped with a standard LAN interface. It is designed to transmit
data using theHTTP protocol (e.g. PC with setup program orWeb browser) or theModbus pro-
tocol (Modbus/TCP, master or slave).
Two serial interfaces are also optionally available as additional modules for the central process-
ing unit (Com1 and Com2, 9-pin), which can be used as a RS232 or RS422/485. Both serial
interfaces can be operated using the Modbus protocol (Modbus RTU; master or slave).
Front view of central processing unit
NOTE!
The type designation on the central processing unit's nameplate provides information on
which optional interfaces were assembled ex-works.
Information on this can be found in the chapter "Identifying the device version" in the operat-
ing manual B 705001.0 or the installation instructions B 705001.4 (the installation instruc-
tions are included in the scope of delivery of the central processing unit).
NOTE!
Optional interfaces can also be added by the user.
Information on this can be found in the chapter "Retrofitting interfaces" in the operating man-
ual B 705001.0 or the installation instructions B 705001.4 (the installation instructions are in-
cluded in the scope of delivery of the central processing unit).
(1) Com1 serial interface (9-pin)
(2) Com2 serial interface (9-pin)
(3) LAN interface (RJ45)
Setup
LAN Bus Out
Run
Stop
Reset
Power
Status
Bus Error
Com1
Com2
Com2
2
134
ON
2
134
ON
Com1
(2)
(1)
(3)

2 Connecting interfaces
14
2.2 Interface assignment
Connection Designation Connection element
Ethernet LAN 1 TX+
2 TX-
3 RX+
6 RX-
Transmission data +
Transmission data -
Received data +
Received data -
Serial inter-
face
(RS232)
Com1,
Com2 2 RxD
3 TxD
5 GND
Received data
Transmission data
Ground
Serial inter-
face
(RS422)
Com1,
Com2 3 TxD+
4 RxD+
5 GND
8 TxD-
9 RxD-
Transmission data +
Received data +
Ground
Transmission data -
Received data -
Serial inter-
face
(RS485)
Com1,
Com2 3 TxD+/RxD+
5 GND
8 TxD-/RxD-
Transmission/received
data +
Ground
Transmission/received
data -
PROFIBUS-
DP Com2 8 RxD/TxD-N (A)
3 RxD/TxD-P (B)
6 VP (+5 V)
5 DGND
Transmission/received
data -
Transmission/received
data +
Voltage supply
Ground
8
1
6789
2345
1
NOTE!
A connecting cable with shielding must be used to connect the RS232 interface.
A twisted connecting cable with shielding must be used to connect the RS422/485 interface.
To avoid transmission errors, only the signals listed above may be connected.
NOTE!
A RJ45 patch/crossover cable (CAT5 or higher) must be used to connect the LAN interface.

15
2 Connecting interfaces
2.2.1 Terminating resistors
The internal terminating resistors for the Com1 and Com2 interfaces are only relevant for
RS422/485.
The terminating resistors are deactivated by default. To activate them, DIP switches 1 to 4 for
the relevant interface must be pushed upward using a suitable tool such as a ballpoint pen (ON
position).
The following figure shows the position of the DIP switches when the terminating resistors are
activated.
Internal terminating resistors
2
134
ON
NOTE!
To ensure fault-free operation, terminating resistors are required at the start and end of an
RS422/485 transmission path.
332 ?
120 ?
332 ?
GND
+5 V
4
9
332 ?
120 ?
332 ?
GND
+5 V
3
4
3
8
1
2

2 Connecting interfaces
16
2.3 Serial interface
Setup dialog
Parameters
Parameter Selection/settings Description
Protocol Modbus slave Modbus RTU (central processing unit as
Modbus slave)
The device address is assigned dynami-
cally during hardware configuration.
Modbus master Modbus RTU (central processing unit as
Modbus master)
Baud rate Baud rate with which the interface is operated.
9600 9600 baud
19200 19200 baud
38400 38400 baud
Data format Data format with which the interface is operated.
8 - 1 - no parity 8 data bits, 1 stop bit, no parity
8 - 1 - odd parity 8 data bits, 1 stop bit, odd parity
8 - 1 - even parity 8 data bits, 1 stop bit, even parity
Min response
time 0 to 40 to 500 ms The minimum response time is adhered to by the Modbus slave before a
response is sent following a data
request.
Modbus slave
Timeout mast. 60 to 10000 to 60000 ms Master monitoring time
After this time, a timeout is identified in
the Modbus master. An internal digital
signal is set in the event of a timeout.

17
2 Connecting interfaces
2.3.1 Modem
Setup dialog
Parameters
Modem active Not selected (empty) No modem operation (Modbus slave is
connected directly to serial bus).
Selected (checkmark) Modem operation (Modbus slave is con-
nected to the Modbus master via the
modem).
Additional settings are required here
("Modem" button).
Modbus master
Timeout 60 to 200 to 10000 ms A request sent by the master is defined
as faulty if no answer is received within
this time.
Scanning cycle 60 to 500 to 99999 ms The Modbus master requests the Mod-
bus master data from the Modbus slave
at these intervals.
Parameter Selection/settings Description
Parameter Selection/settings Description
Cycl. init. time 0 to 5to 255 min Time for cyclical initialization of the
modem (if the modem is switched on
after the system).
0 = one-time initialization (after system
has been switched on)
Init string AT&FE0X3Q1&K0S0=1&D0&W0&Y0
(ASCII; max. 40 characters) AT command for modem initialization This default initialization string config-
ures the modem so that it can be called
from an external source, answers inde-
pendently, and receives Modbus com-
mands.
?

2 Connecting interfaces
18
Init string The following Init string is required for operation as a Modbus slave:
AT&FE0X3Q1&K0S0=1&D0&W0&Y0
AT&F = Load current manufacturer profile
E0 = Deactivate character echo
X3 = Deactivate dial tone detection, activate busy tone detection
Q1 = Deactivate command responses
&K0 = Deactivate data flow control
S0=1 = Auto answer after first ring
&D0 = Ignore DTR signal
&W0 = Save current configuration as profile 0
&Y0 = Use profile 0 after switch-on
Call string, hang-up string
The dialing and hang-up strings are required if the modem needs to establish a connection to
the Internet (to send e-mail via e-mail server) or a PC with process visualization software in the
event of an alarm.
Additional settings
To open this window, use the "..." button:
Call string ATDT
(ASCII; max. 24 characters) AT command for establishing a connec-
tion via the modem
ATDT = selection with dial tone (DTMF)
Hang-up string ATH
(ASCII; max. 16 characters) AT command for disconnection via the
modem
ATH (or ATH0) = hang up
Alarm message
Alarm type Issue of alarm message
E-mail In the event of an alarm, an e-mail is
sent (via the e-mail server after connect-
ing to the Internet).
PC visualization In the event of an alarm, a modem con-
nection is established to a PC with pro-
cess visualization software.
Alarm signal Signal that triggers the alarm message (only for "PC visualization" alarm type)
Inactive No alarm message
Module (source of signal) Alarm message is triggered by a signal
(high active) that must be selected in the
following field (digital selector).
Phone no. (None)
(ASCII; max. 24 characters) Telephone number for establishing con-
nection to a PC with process visualiza-
tion software
(Only for "PC visualization" alarm type)
Parameter Selection/settings Description
?
?

19
2 Connecting interfaces
Parameters
2.3.2 Handshake lines for RS232
When using Com1/Com2 as a RS232 interface, the handshake lines (RTS, CTS) are not used.
The RTS line coming from the master is ignored. The response is immediately transmitted from
the slave. The CTS line of the master remains open.
If the program used evaluates the handshake lines, they must be bridged in the cable.
Connecting a PC/Notebook with 9-pin Sub-D socket to Com1/Com2
Parameter Selection/settings Description
Initialization AT Q0 S95=249 L1 M1 S7=60 S30=9
\N3 ?
(ASCII; max. 50 characters)
AT command for modem changeover
This default initialization string switches
the modem to the mode for connecting
to the Internet (e-mail server).
Phone no. 010880192658
(ASCII; max. 24 characters) Telephone number for connecting to the
Internet (to be requested from the Inter-
net provider)
User (Internet) MSN
(ASCII; max. 64 characters) User name for logon when connecting to
the Internet (to be requested from the
Internet provider)
Password (Inter-
net) MSN
(ASCII; max. 64 characters) Password for logon when connecting to
the Internet (to be requested from the
Internet provider)
Com1/Com2 PC/Notebook
(2) RxD
(3) TxD
(5) GND
RxD
TxD
RTS
CTS
GND
(2)
(3)
(7)
(8)
(5)

2 Connecting interfaces
20
Connecting a PC/Notebook with 25-pin Sub-D socket to Com1/Com2
Com1/Com2 PC/Notebook
(2) RxD
(3) TxD
(5) GND
TxD
RxD
RTS
CTS
GND
(2)
(3)
(4)
(5)
(7)