JUMO LOGOSCREEN nt User manual

JUMO LOGOSCREEN nt
Paperless recorder
with TFT display, CompactFlash card
and USB interfaces
B 706581.2.0
Interface Description
V1.00/EN/00504688

Contents
1 Introduction 5
1.1 Preface .......................................................................................................... 5
1.2 Typographical conventions ......................................................................... 6
1.2.1 Warning signs ................................................................................................. 6
1.2.2 Note symbols ................................................................................................. 6
1.2.3 Number types ................................................................................................. 6
2 General information 7
2.1 Target group .................................................................................................. 7
2.2 Interfaces ...................................................................................................... 7
2.3 System prerequisites ................................................................................... 7
3 Connecting the interface 9
3.1 Connection position ..................................................................................... 9
3.2 RS232 .......................................................................................................... 11
3.3 Toggling between RS232 and RS485 ........................................................ 11
3.4 Configuration of the serial interfaces ....................................................... 12
3.5 Configuration of the Ethernet interface ................................................... 13
3.5.1 Parameters ................................................................................................... 13
4 Modbus protocol description 15
4.1 Master-Slave principle ............................................................................... 15
4.2 Transmission mode (RTU) ......................................................................... 15
4.3 Timing of the communication ................................................................... 16
4.4 Structure of a Modbus telegram ............................................................... 17
4.5 Device address ........................................................................................... 18
4.6 Function codes ........................................................................................... 18
4.6.1 Read n bit ..................................................................................................... 19
4.6.2 Read n words ............................................................................................... 20
4.6.3 Write one bit ................................................................................................. 21
4.6.4 Write one word ............................................................................................. 22
4.6.5 Write n words ............................................................................................... 23
4.7 Transmission format (integer, float, double and text values) ................. 24

Contents
4.8 Checksum (CRC16) .................................................................................... 27
4.9 Error messages .......................................................................................... 28
4.9.1 Modbus error codes ..................................................................................... 28
4.9.2 Error messages for invalid values ................................................................ 29
4.9.3 Error codes as integer return values ............................................................ 30
5 Serial protocol types 35
5.1 Modbus slave .............................................................................................. 35
5.2 Modbus master .......................................................................................... 38
5.3 Barcode ....................................................................................................... 39
6 Ethernet protocols 41
6.1 HTTP ............................................................................................................ 41
6.2 Browser connection ................................................................................... 41
6.3 Modbus TCP ............................................................................................... 42
6.4 Email (SMTP and POP3) ............................................................................. 44
7 Address tables 47
7.1 Data types and type of access .................................................................. 47
7.2 Modbus addresses of important device and process data .................... 47
8Index 65

5
1 Introduction
1.1 Preface
Please read this interface description before commissioning the interfaces of
the device. Keep the interface description in a place accessible to all users at
all times.
Please assist us in improving this Interface description.
Your comments are highly appreciated.
All information required to operate the interface is described in the
supplied Interface description. Nevertheless, should problems be
encountered during commissioning/start-up, please refrain from
carrying out any inadmissible manipulations. This could jeopardize
your warranty rights!
Please contact the nearest subsidiary or the head office.
When returning controller modules, assemblies or components,
please observe the regulations according to DIN EN 61340-5-1 and
DIN EN 61340-5-2 „Protection of electrostatic sensitive devices“.
For transport, only use ESD packages.
Please note that we cannot accept any liability for damage caused
by ESD.
ESD=Electro Static Discharge

1 Introduction
6
1.2 Typographical conventions
1.2.1 Warning signs
The symbols for Caution and Attention are used in this operating manual
under the following conditions:
1.2.2 Note symbols
1.2.3 Number types
Caution This symbol is used when there may be danger to personnel if
the instructions are ignored or not followed correctly!
Attention This symbol is used when there may be damage to equipment
or data if the instructions are ignored or not followed correctly!
Attention This symbol is used where special care is required when
handling components liable to damage through electrostatic
discharge.
Note This symbol is used when your special attention is drawn to a
remark.
abc1Footnote Footnotes are remarks that refer to specific points in the text.
Footnotes consist of two parts:
A marker in the text and the foot note text itself.
The markers in the text are arranged as continuous superscript
numbers.
0x0010 Hexadecimal
number A hexadecimal number is identified by „0x“ preceding the actual number (here: 16 decimal).

7
2 General information
2.1 Target group
This operating manual is intended for user, who want to use the paperless
recorder as a Modbus slave and read out data from a Modbus master (e.g.
PLC).
2.2 Interfaces
ex-factory The paperless recorder is equipped with several interfaces as a standard:
• Serial interface RS232 or RS485
• Serial interface RS232 (barcode scanner)
• Ethernet 10/100 MBit/s
• 2 USB host and 2 USB device interfaces
The serial and the ethernet interfaces serves for communication with a bus
system or PC. They can be used, for example, to read out the measured
values and/or instrument and process data from the paperless recorder. In
connection with the ethernet interface and a PC webbrowser, recorders can be
monitored via the internet. Two RS232 interfaces are available. Both interfaces
are to be considered as equal.
The USB interfaces are fitted on the front and the back and intended for the
operation with the setup program or the PCA communication software (PCC)
or for reading out data via the USB memory stick. Only use one USB host or
USB device interface at a time. Instruments with stainless steel fronts are not
equipped with USB interfaces on the front.
Extra code The paperless recorder is equipped with several interfaces as an option:
• PROFIBUS-DP interface
2.3 System prerequisites
The following items are required for interface operation:
• Connection line:
for RS232
Interface cable RS232 (9/9-pin): TN 00367735
Interface cable RS232 (9/25-pin): TN 00367736
for ethernet, e.g.
RJ 45 patch cable, CAT 5 or higher (cross over)
• Setup or evaluation program, e.g.
Setup program: TN 00468991
PC evaluation software PCA3000: TN 00431882
PCA communication software PCC: TN 00431879
JUMO SVS3000 Visualization: Data Sheet
700755
• PC or notebook

2 General information
8

9
3.1 Connection position
Front view of
the
paperless
recorder
Connection
diagram
USB host
for the data exchange
(measured data,
configuration data,
user lists) between paperless
recorder and PC
USB device
for communication with the
setup program or PCC
Use a USB interface either at the front or at the rear! Only use one
host or device interface at a time.
USB host = Plug type A
USB device = Plug type B mini
3 Connecting the interface

3 Connecting the interface
10
Rear view of the
paperless
recorder
Connection
diagram
RS232/RS485
(1) RS232 interface for
barcode scanner (serial)
(4) Ethernet interface
(serial)
(2) PROFIBUS-DP interface
(optional)
(5) RS232/485 interface
(serial)
(3) USB host interface
(serial)
(6) USB device interface
(serial)
21 22 23 31 32 33 41 42 43 51 52 53 61 62 63 71 72 73
1234
10 11 12
123456
9
8
7
B12
B9
B10
B11
B13
B14
B15
B16
B4
B1
B2
B3
B5
B6
B7
B8
+
+
+
UU
+
--
--
in out
U
Uout
U
Uin
33
44
11
22
123412341234123412341234
123412341234
8. 9.
11.
10.
14.
3.
2.
1.
12 13
11
5.
6. 7.
PE
N
L1
(L+)
(L-)
4.
15.
(1) (2)
(3) (4) (5) (6)
RS232 (plugs (1) + (5)) RS485 (plug (5))
We recommend the use of a twisted connection cable with
shielding!
Only connect the signals specified above, otherwise errors will
occur!

11
3 Connecting the interface
3.2 RS232
The RS232 interface does not use the handshake lines (RTS, CTS). The RTS
line (CTS on the paperless recorder) coming from the master (PC or notebook)
is not taken into consideration. The response is immediately transmitted from
the paperless recorder. The CTS line of the master (RTS on the paperless
recorder) remains open.
If the used program evaluates the handshake lines, they must be bridged in
the cable.
PC COM
interface with 9-
pin Sub-D
socket
PC COM
interface with
25-pin Sub-D
socket
3.3 Toggling between RS232 and RS485
Toggling between RS232 and RS485 interface is carried out by means of the
paperless recorder parameter
Configuration Interface RS232/RS485 General Type
or via the setup program
Edit Serial interface RS232/RS485 Type
(2) RxD
(3) TxD
(5) GND
RxD
TxD
RTS
CTS
GND
(2)
(3)
(7)
(8)
(5)
Paperless recorder PC/notebook
(2) RxD
(3) TxD
(5) GND
TxD
RxD
RTS
CTS
GND
(2)
(3)
(4)
(5)
(7)
Paperless recorder PC/notebook

3 Connecting the interface
12
3.4 Configuration of the serial interfaces
Configuration
on the
paperless
recorder
✱Select Configuration Interface RS232/RS485 General on the
paperless recorder.
Now the parameters required to configure the interface are available.
Configuration
via the setup
program
The Edit ➔Serial interface RS232/RS485 menu point is used for the
configuration by means of the setup software.
Parameters Value/Selection Description
Device address ➔Device address 1...254 see Chapter 4.5 Device
address, Page 18.
Interface type ➔Type RS232,
RS485
Can only be edited for
RS232/RS485.
See Chapter 3.3 Toggling
between RS232 and
RS485, Page 11.
Protocol ➔Protocol Modbus slave,
Modbus master,
Barcode
see Chapter 5 Serial
protocol types, Page 35.
Baud rate ➔Baud rate 9600 baud,
19200 baud,
38400 baud
see Chapter 4.3 Timing of
the communication, Page
16.
Transmission mode
(RTU)
➔Data format 8 - 1 - no Parity,
8 -1 - odd Parity,
8 -1 - even Parity
see Chapter 4.2
Transmission mode (RTU),
Page 15.
Min. response time ➔Min. response time 0... 500ms see Chapter 4.3 Timing of
the communication, Page
16.
For communication via the RS232 interfaces, the device address
has to be taken into account although it is not a bus interface.
The serial interfaces as well as the USB and Ethernet interface can
be operated simultaneously. Only on the protocol level, some
inhibits are present (e.g. only one setup may be written at a time).

13
3 Connecting the interface
3.5 Configuration of the Ethernet interface
Configuration
on the
paperless
recorder
is carried out using the Configuration ➔Interface ➔Ethernet menu point.
Configuration
via the setup
program
is carried out using the Extras ➔Ethernet interface menu point.
3.5.1 Parameters
DHCP DHCP (Dynamic Host Configuration Protocol) is used to ensure that the
paperless recorder is automatically assigned an IP address and further
communication parameters by a DHCP server.
The further communication parameters usually assigned to the paperless
recorder by the DHCP server include, among others, the subnet mask, the
standard gateway address and the so-called lease time.
After the lease time (period of use) has elapsed, the validity of the IP address
expires. To ensure that the paperless recorder always has a valid IP address,
after 50% of the lease time it transmits a query to the known DHCP server
asking whether or not the address is still valid. If the DHCP server cannot be
accessed, the paperless recorder repeats its query until 87.5% of the lease
time has elapsed. Then the paperless recorder transmits its query not only to
the DHCP server but also to the entire network. When the lease time has
elapsed and the IP address is still not acknowledged, the paperless recorder
declares the address as invalid and is no longer accessible via the net.
On DHCP is switched on, the paperless recorder obtains its
IP address by the DHCP server

3 Connecting the interface
14
The automatically assigned IP address query can be inquired in the Device
manager Device info Ethernet info menu.
IP address If automatic IP address assignment is not used ("DHCP = OFF"), the IP
address of the paperless recorder is set here.
Subnet mask If automatic IP address assignment is not used ("DHCP = OFF"), the subnet
mask is set here.
The subnet mask is used to group devices (PC, paperless recorder, etc.) into
subnets. All devices, the IP address of which is linked with AND identical to
the subnet mask, belong to one subnet and can communicate with each other.
If devices are to be accessed outside the subnet, communication must be
carried out via a gateway (standard gateway).
Standard
Gateway If automatic IP address assignment is not used ("DHCP = OFF"), the address of the standard gateway is set here.
The standard gateway is used for communication by devices which are not
part in a subnet.
Port Modbus
TCP The port address must be set when the paperless recorder is accessed by a visualization software and the Modbus TCP protocol (Modbus tunneling:
external frame Ethernet, internal frame Modbus) is used.
DNS
Device name The DNS device name is entered here. This ensures that the device can be accessed not only via its IP address but also via its name.
DNS server Here the IP address of a DNS server installed in the network is set. The DNS
server is required to convert the name for Email transmittion via Ethernet.
Transfer rate The transfer rate used by the paperless recorder to communicate with the
DHCP server and other PCs is configured here.
The DHCP server can change an assigned address. If, for
example, automatic data download with the PCA communication
software is used, the address must be changed within the
software.
Changes to this parameter will become effective after the
paperless recorder has been restarted.
Changes to this parameter will become effective after the
paperless recorder has been restarted.

15
4 Modbus protocol description
4.1 Master-Slave principle
Communication between a master (PC or notebook) and a slave (paperless
recorder) using the Modbus/J-bus takes place according to the master-slave
principle, in the form of data request/instruction - response.
The master controls the data exchange, the slaves only have a response
function. They are identified by their device address.
4.2 Transmission mode (RTU)
The transmission mode used is the RTU mode (Remote Terminal Unit). The
data is transmitted in the binary format (hexadecimal) with 8 or 16 bits for
integer values and 32 bits for float values.
Data format The data format describes the structure of a byte transmitted.
The paperless recorder can be operated either as a Modbus slave,
see Chapter 5.1 Modbus slave, Page 35, or as a Modbus master,
see Chapter 5.2 Modbus master, Page 38.
In a Modbus network, only one device can be assigned with the
master function.
Master
Slave 1 Slave 2 Slave n
Data word Parity bit Stop bit Number of bits
8 bits no 1 9
8 bits even 1 10
8 bits odd 1 10
The data format to be used can be set, see Chapter 3.4
Configuration of the serial interfaces, Page 12.

4 Modbus protocol description
16
4.3 Timing of the communication
Character
transmission
time
Start and end of a data block are marked by transmission pauses. The
character transmission time (time required to transmit one single character)
depends on the baud rate and the data format used.
For a data format of 8 data bits, no parity bit and one stop bit, this is:
Character transmission time [ms] = 1000 * 9 bit ÷ baud rate
For the other data formats, this is:
Character transmission time [ms] = 1000 * 10 bit ÷ baud rate
Example
Timing scheme A data request runs according to the following timing scheme:
Baud rate [baud] Data format [bit] character transmission
time [ms]
38400 10 0,260
9 0,234
19200 10 0,521
9 0,469
9600 10 1,042
9 0,938
t1Internal waiting time of the paperless recorder prior to checking
the data request and the internal processing time.
min.: 5 ms
typical: 5 ... 45 ms
max.: 60 ms or set "minimum response time"
Master
Slave
Data request
Response
Data request
t
t1t2

17
4 Modbus protocol description
No data requests from the master are permitted during t1and t2 , because the
paperless recorder will either ignore the request or declare it to be invalid.
4.4 Structure of a Modbus telegram
Data structure All telegrams have the same structure:
Each telegram contains four fields:
Slave address device address of a specific paperless recorder
Function code function selection (read, write words)
Data field Contains information (according to the function code):
• Word address/bit address
• Number of words/bits
•word/bitvalues
Checksum detection of transmission errors
A minimum response time can be set in the controller under the
menu point Configuration ➔Interface. This preset time is the
minimum waiting time before an answer is transmitted (0…500
ms). If a smaller value is set, then the response time may be longer
than the preset value (internal processing takes longer), the
controller answers as soon as internal processing is completed.
The preset time of 0 msec means that the controller responds at
the maximum possible speed.
The minimum response time, which can be set is required by the
RS485 interface in the master, to be able to switch over the
interface drivers from transmit to receive. This parameter is not
required for the RS232 interface.
t2The master has to observe this waiting time before starting a new
data request.
for RS232 min. 3.5 times the transmission time
required for 1 character (the time
depends on the baud rate)
for RS485 60ms
Slave address Function code Data field Checksum
CRC16
1 byte 1 byte x byte 2 byte

4 Modbus protocol description
18
4.5 Device address
The device address of the paperless recorder can be set between 1 and 254
(decimal), see Chapter 3.4 Configuration of the serial interfaces, Page 12.
4.6 Function codes
Function
overview The functions described as follows can be used to read out the measured values and further device and process data from the paperless recorder.
A maximum of 31 paperless recorders can be addressed via the
RS 485 interface.
The device address 0 is reserved as the Modbus broadcast
address.
An instruction of the master to address 0 is carried out by all
slaves, but no response is transmitted by them (because this would
result in a data collision).
If only one paperless recorder is connected to the PC or notebook,
it can also be addressed via device address 255 (even if a different
device address is configured). The paperless recorder always
responds to instructions using device address 255.
In the transmission protocol, the address is specified in the
binary format (hexadecimal).
Function
number Function Limitation
0x01 or 0x02 Read n bit max. 256 bits (16 bytes)
0x03 or 0x04 Read n words max. 127 words (254 bytes)
0x05 Write one bit max. 1 bit
0x06 Write one word max. 1 word (2 bytes)
0x10 Write n words max. 127 words (254 bytes)
Please refer to Chapter 4.9 Error messages, Page 28, if the paperless
recorder does not react to these functions or emits an error code.

19
4 Modbus protocol description
4.6.1 Read n bit
This function is used to read n bits starting from a specific address.
Data request
Response
Example Reading a bit starting from bit address 0x0340 (this is word address 0x0034).
For the addresses please refer to Chapter 7.2 Modbus addresses of important
device and process data, Page 47.
Data request:
Response:
Slave
address
Function
0x01 or 0x02
Address
first bit
Number
of bits
Checksum
CRC16
1 byte 1 byte 2 byte 2 byte 2 byte
Slave
address
Function
0x01 or 0x02
Number of
byte read
Bit
value(s)
Checksum
CRC16
1 byte 1 byte 1 byte x byte 2 byte
The response always comes in full bytes of 8 bits each.
Non-requested bit values will be complemented with the 0 value.
01 02 0340 0001 B85A
01 02 01 01 6048
Bit value

4 Modbus protocol description
20
4.6.2 Read n words
This function is used to read n words starting from a specific address.
Data request
Response
Example Reading the first 3 analog inputs (these are the first 6 words starting from
Modbus address 0x1257).
For the analog input address please refer to Chapter 7.2 Modbus addresses of
important device and process data, Page 47.
Data request:
Response:
Slave
address
Function
0x03 or 0x04
Address
first word
Number
of
words
Checksum
CRC16
1 byte 1 byte 2 byte 2 byte 2 byte
Slave
address
Function
0x03 or 0x04
Number of
byte read
Word
value(s)
Checksum
CRC16
1 byte 1 byte 1 byte x byte 2 byte
01 03 1257 0006 7160
01 03 0C 1999 4348 4CCC 4348 2666 4396 8548
Measured
value 1
200,1
Measured
value 2
200,3
Measured
value 3
300,3