Master 102D Instruction manual

TRANSDUCER TE232-102D, TE485-102D
Programmable temperature transducer for RTD Pt1000
sensor with serial output RS232 and RS485
Instruction manual
Instruction Manual for use of transducer:
TE232-102D (RS232), TE485-102D (RS485)
Transducer is designed for temperature measurement at °C or °F by means of the external
temperature probe with RTD Pt1000 sensor. It is built in a plastic case with the IP65 protection.
Read this manual before the first transducer connection. Transducer TE232-102D communicates
via link RS232, transducer TE485-102D via link RS485. Supported communication protocols are
Modbus RTU, protocol compatible with standard Advantech-ADAM and ARION. Measured value
is displayed on dual line LCD display. Display can be also switched OFF. Output link RS485 of
transducer TE485-102D is galvanic isolated. Output link RS232 of transducer TE232-102D is
NOT galvanic isolated. Please read instruction manual before the first device connection.
Use user’s software Tsensor for setting of all device parameters (recommended). It
supports make the adjustment of the device too. This procedure is described at file „Calibration
manual.pdf“ which is installed commonly with the software. Change of some parameters is possible
to do without user’s software with Windows hyperterminal (change of communication protocol, its
parameters, LCD display setting).
Transducer setting from the manufacturer
If special setting was not required in the order, transducer is set from the manufacturer to the
following parameters:
communication protocol:
transducer address:
communication speed:
display:
Modbus RTU
01H
9600Bd, no parity, 2 stop bits
switched ON
Transducer installation
Transducer is designed for wall mounting. There are two mounting holes at the sides of the
case. Don’t connect transducer while power supply voltage is on. Interconnection terminals are
accessible after unscrewing four screws and removing the lid. Lace the cable through a gland at the
case wall. Connect the cable to terminals with respecting the signal polarity (see figure). Terminals
are self-clamping and can be opened by a suitable screwdriver. For the opening, insert the
screwdriver to smaller terminal hole and lever by him. Do not forget to tighten glands and case lid
with inserted packing after cables connecting. It is necessary for warranting of protection IP65.
Working position is negligible.
External temperature probe should be of „shielded two-wire“ type. For leading of the cable
same recommendations are valid as for current loop cable, i.e. cable should be located as far as
possible from potential interference sources. Maximum probe cable length is 10 m. Connect probe
cable shielding to proper terminal and do not connect it to any other circuitry and do not ground it.
If connected probe is equipped with metal stem, we recommend to use probes with metal stem not
connected to cable shielding. Or else it is necessary to arrange metal stem is not connected to any
other circuitry.
Transducer TE232-102D is supplied with connection cable equipped with connector for
connection to RS232 interface. For TE485-102D transducer (RS485) it is recommended to use
shielded twisted copper cable (e.g. SYKFY ). Outside diameter of the cable must be from 3 to 6.5
mm, maximal length 1200m. The cable must be located at indoor rooms.
Nominal cable impedance should be 100 Ω, loop resistance max. 240 Ω, cable capacity max.
65 pF/m. Suitable cable is e.g. SYKFY 2x2x0,5 mm2, where one wire pair serves for transducer
powering and the other pair for communication link.
2
The cable should be led in one line, i.e. NOT to „tree“ or „star“. Termination resistor should
be located at the end. For short distance other topology is allowed. Terminate the network by a
termination resistor. The value of the resistor is recommended about 120 Ω. For short distance
termination resistor can be left out.
The cable should not be led in parallel along power cabling. Safety distance is up to 0.5 m,
otherwise undesirable induction of interference signals can appear.
Electrical system (wiring) may do only worker with required qualification by rules in
operation.
Dimensions
TE232-102D –
RS232
TE485-102D –
RS485
3
Typical application wiring, connection of terminals
TE232-102D – power from communication TE232-102D – power from external voltage
port
source
TE485-102D – RS485
4
Info mode
If in doubt of setting of installed transducer, verification of its address is enabled even
without using computer. Power should be connected.
Unscrew transducer cover and shortly press button next to connection terminals (jumper
must be open). Actual adjusted address of transducer is displayed at decimal code. Next press of
button exits info mode and actual measured values are displayed.
Note: No measurement and communication is possible during info mode. If transducer stays in info
mode for longer than 15 s, transducer automatically returns to measuring cycle.
Description of communication protocols
Detailed description of each communication
communication is available in individual document.
protocols
including
examples
of
Note: After switching ON the power of the device it can last up to 2 s before the device starts to
communicate and measure!
Modbus RTU
Control units communicate on master-slave principle in half-duplex operation. Only master
can send request and only addressed device responds. During sending of request no other slave
station should respond. During communication, data transfer proceeds in binary format. Each Byte
is sent as eight bit data word in format: 1 start bit, data word 8 bit (LSB first), 2 stop bits1, without
parity. Transmitter supports communication speed from 110Bd to 115200Bd.
Sent request and response have syntax: ADDRESS OF DEVICE – FUNCTION – Modbus CRC
Supported functions
03 (0x03): Reading of 16-bit registers (Read Holding Registers)
04 (0x04): Reading of 16-bit input gates (Read Input Registers)
16 (0x10): Setting of more 16-bit registers (Write Multiple Registers)
Jumper and button
Jumper and button are located next to connection terminals. If communication protocol
Modbus is selected the function of jumper and button is as follows:
• Jumper opened – transmitter memory is protected from writing, from transmitter side it is
only enabled to read measured value, writing to memory is disabled (no change of
transmitter address, communication speed and LCD setting is enabled)
• Jumper closed – writing to transmitter memory is enabled by means of User’s software
• Jumper closed and button pressed for longer than six seconds – causes restoring of
manufacturer setting of communication protocol, i.e. sets Modbus RTU communication
protocol, device address sets to 01h and communication speed to 9600Bd (after button press
there is “dEF” message blinking at LCD display. Six seconds later message “dEF” stays
shown, it means manufacturer setting of communication protocol is done).
• Jumper opened and button shortly pressed – transmitter goes to Info mode, see chapter „Info
mode“
1
Transmitter sends two stop bits, for receive one stop bit is enough.
5
Modbus registers of the device
Variable
Unit
AddressX Format Size
Status
Measured temperature
[°C]
0x0031
Int*10
BIN16
R
Address of transmitter
[-]
0x2001
Int
BIN16
R/W*
Code of communication speed
[-]
0x2002
Int
BIN16
R/W*
Serial number of transmitter Hi [-]
0x1035
BCD
BIN16
R
Serial number of transmitter Lo [-]
0x1036
BCD
BIN16
R
Version of Firmware Hi
[-]
0x3001
BCD
BIN16
R
Version of Firmware Lo
[-]
0x3002
BCD
BIN16
R
Explanation:
• Int*10 register is in format integer*10
• R
register is designed only for reading
• W*
register is designed for writing, for more details see chapter description of
communication protocols
• X
register addresses are indexed from zero – register 0x31 is physically sent as value
0x30, 0x32 as 0x31 (zero based addressing)
Note: In case there is a need for reading of measured values from transmitter with higher resolution
than one decimal, measured values in transmitter are stored also in „Float“ format, which is not
directly compatible with IEEE754.
Protocol compatible with Advantech-ADAM standard
Control units communicate on master-slave principle in half-duplex operation. Only master
can send requests and only addressed device responds. During sending request any of slave devices
should respond. During communication data is transferred in ASCII format (in characters). Each
Byte is sent as two ASCII characters. Transmitter supports communication speed from 1200Bd to
115200Bd, parameters of communication link are 1 start bit + eight bit data word (LSB first) +
1 stop bit, without parity.
Jumper
Jumper is located next to connection terminals. If communication protocol compatible with
standard Advantech-ADAM is selected, its function is the following:
• If jumper during switching ON the power is closed, transmitter always communicates with
following parameters regardless stored setting in the transmitter:
communication speed 9600 Bd, without check sum, transmitter address 00h
• If jumper during switching ON the power is not closed, transmitter communicates in
accordance with stored setting.
• If jumper is closed during transmitter operation, transmitter temporarily changes its address
to 00h, it will communicate in the same communication speed as before closing jumper and
will communicate without check sum. After jumper is opened setting of address and check
sum is reset in accordance with values stored in transmitter.
• Communication speed and check sum are possible to change only if jumper is closed.
• Jumper closed and button pressed for longer than six seconds – causes restoring of
manufacturer setting of communication protocol, i.e. sets Modbus RTU communication
protocol, device address sets to 01h and communication speed to 9600Bd (after button press
there is “dEF” message blinking at LCD display. Six seconds later message “dEF” stays
shown, it means manufacturer setting of communication protocol is done).
6
ARION communication protocol - AMiT company
The device supports communication protocol ARiON version 1.00. For more details see
www.amit.cz.
Error states of the device
Device continuously checks its state during operation. In case error is found LCD displays
corresponding error code:
Error 0
First line displays „Err0“.
Check sum error of stored setting inside device’s memory. This error appears if incorrect writing
procedure to device’s memory occurred or if damage of calibration data appeared. At this state
device does not measure and calculate values. It is a serious error, contact distributor of the
instrument to fix.
Error 1
Measured value is over upper limit of allowed full scale range. There is a reading „Err1“ on LCD
display. This state appears if measured temperature is higher than approximately 600°C (i.e. high
non-measurable resistance of temperature sensor, probably opened circuit).
Error 2
There is a reading „Err2“ on LCD display. Measured value is below lower limit of allowed full
scale range. This state appears if measured temperature is lower than approximately -210°C (i.e.
low resistance of temperature sensor, probably short circuit).
Error 3
There is a reading „Err3“ on LCD display upper line.
Error of internal A/D converter appeared (converter does not respond, probably damage of A/D
converter). No measurements proceed. It is a serious error, contact distributor of the instrument.
Readings on LCD display
°C, °F
Reading next to this symbol is measured temperature or error state of value.
symbol 3 near by left display margin
Is on if jumper is closed.
7
Technical parameters of the instrument:
RS 485 Interface:
Receiver-Input Resistance: 96 kΩ
Devices on bus:
max. 256 (1/8 Unit Receiver Load)
Measuring parameters:
Temperature probe: Pt1000/3850 ppm connected by shielded cable of maximum length 10m
Measuring temperature range: -200 to +600 °C (can be limited by applied temperature probe
model)
Resolution: 0.1 °C
Accuracy (without probe): ±0.2 °C
Recommended calibration interval: 2 years
Measuring interval and LCD display refresh: 0.5 s
Power: 9 to 30 V dc
Protection: IP65
Operating conditions:
Operating temperature range: -30 to +80 °C, over +70°C switch LCD display OFF
Operating relative humidity range: 0 to 100 %RH
Outer influence in accordance with EN 33-2000-3: normal environment with those
specifications: AE1, AN1, AR1, BE1
Working position: negligible
Electromagnetic compatibility: complies EN 61326-1
Not allowed manipulation
It is not allowed to operate the device under conditions other than specified in technical parameters.
Devices are not designed for locations with chemically aggressive environment.
Storing conditions: temperature -30 to +80 °C, humidity 0 to 100 %RH without condensation
Dimensions: case with electronics 89 x 73 x 37 mm
Weight: approximately 200 g
Material of the case: ABS
End of operation
Device itself (after its life) is necessary to liquidate ecologically!
Technical support and service
Technical support and service is provided by distributor. For contact see warranty certificate.
8
Appendix A
Connection of ELO E06D converter (RS232/RS485)
(optionally accessory of the transducer TE485-102D)
The ELO E06D converter is an optional accessory for connection of transducer/transducers with
RS485 interface to the PC via serial port RS232. Connect connector marked RS232 directly to the
PC, connect power to connector marked RS485. Power voltage +6V DC from an external acdc
adapter connect to pin 9, 0V connect to pin 5. Also mutually connect pin 2 and pin 7. Link RS485
is connected across pin 3 (A+) and pin 4 (B-).
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Notes:
10
Notes:
11