Wecon LX5V-2PTS-BD User manual

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LX5V-2PTS-BD BD Module Manual
1 Installation
▪ Before installation, it must be ensured that the PLC host and the related device of the BD module terminal
wiring are powered off reliably. The shell is inserted into the BD module slot of PLC host, and then locked
with two standard screws for fixation.
▪ Two standard terminal heads are equipped with this BD module. After connecting the wiring, insert them
into its terminal. After confirming that the host, BD module, wiring, etc. are installed correctly, it can be
powered on for use.
▪✎Note:
● Please install the BD module firmly and fix it on PLC. Poor contact may lead to failure.
● Tightening torque for fixing BD module or PLC top cover is 0.3N.m to0.6N.m. Please tighten it firmly to
avoid malfunction.
▪Warning: Cut off the power before installing, removing or wiring the BD module to avoid electric shock or
product damage.
2 Appearance and terminal
Table1 Terminal distribution
Table2 LED lamp function description
Indicator
lamp
Description
PWR
ON when power-on (when the program is running, it will be ON).
COM
It flashes when communicating with PLC normally, and it is OFF when timeout.
CH1
Channel 1 lamp: Always on in range; Flashing outside the range of -190℃to600℃;
Off when the channel is closed.
CH2
Channel 2 lamp: Always on in range; Flashing outside the range of -190℃to600℃;
Off when the channel is closed.
Note: The recommended range is -190℃to 600℃), and the maximum display range is -200℃to 610℃.
2-wire/3-wire PT100 thermal resistance
V2+
Channel 2 sensor signal input V
positive
L2+
Channel 2 sensor signal input L
positive
VI-
Sensor common pole
L1+
Channel 1 sensor signal input L
positive
V1+
Channel 1 sensor signal input V
positive
V1.0

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3 Specification
(1) General specification: Same as PLC main unit. (Please refer to the accompanying manual of the PLC
main unit.)
(2) Power supply specification: The power supply is provided internally by PLC.
(3) Performance specifications:
Project
Description
Power supply
24VDC±10%, 50mA; 5VDC±10%, 70mA (The power supply is provided internally by host)
Analog input
signal
Platinum thermal resistance PT100 sensor (100Ω), 3-wire 2-channel (CH1, CH2)
Sensor current
1mA
Compensation
range
-190℃to600℃(recommended range)
Over range display: 32767
Digital output
-2000to6100 (unit 0.1℃)—"maximum display range"
Measurement
accuracy
16-bit conversion 15 data bits +1 sign bit
Measurement
accuracy
0.05℃
Total accuracy
Full range ±0.5% (compensation range)
Conversion speed
2 channels 50ms
Conversion
features

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4Wiring
Wiring instructions:
(1) 2-wire PT100: When using channel 1, V1+ and L1+ are shorted with wires, and the two leads of the
sensor are connected to L1+ and VI- respectively. Similarly, when using channel 2, V2+ and L2+ are
shorted with wires, and the two leads of the sensor are connected to L2+ and VI- respectively.
(2) 3-wire PT100: When using channel 1, two leads of the same color are connected to L1+ and V1+
respectively, and the other lead of different color is connected to VI-. Channel 2 is connected in the
same way.
Cut off the power before installing, removing or wiring the BD module to avoid electric shock or
product damage.
✎Note:
● Do not place signal cables near high voltage power cables or in the same trunk line. Otherwise, it may
be disturbed or surged. Keep a safe distance between signal cable and power cable, at least 100mm.
● Ground the shielding of shielded wire or shielded cable. But the ground point and high voltage line
cannot be the same.
● Never weld any cable ends. Ensure that the number of connecting cables does not exceed the
designed number of units.
● Do not connect cables whose dimensions are not allowed to avoid poor contact or damage to
products.
● Fix the cable so that no force directly acts on the terminal line or cable connection area.
● The tightening torque of terminal is 0.5Nm to 0.6N.m. Please tighten it to prevent malfunction.
● Do not use empty terminals.
4.1 Applicable cables
(1) AWG25-16 is used for connection with output device.
(2) Maximum terminal tightening torque is 0.5N.m to 0.6N.m.
(3) Using different types of cables may cause poor contact with terminals. Please use pressfit terminals for
good contact.
Line number and cross-sectional area
Line
number
Cross-sectional
area (mm2)
End processing
AWG26
0.1288
Stranded cable: Strip off the sheath, rub the core wire,
and then connect the cable.
Single-core cable: Strip off the sheath and connect the
cable.
...
...
AWG16
1.309
4.2 I/O Mode
Thermal resistance PT100 input mode

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5 Description of PLC device
(1) When connected to LX3 series PLC, please refer to LX3 series BD module manual.
(2) When connected to LX5 series PLC, if the firmware version of PLC is lower than 2.051 (excluding 2.051),
or BD module is not configured by host computer, it can be controlled by the following system devices:
Table3Device allocation
PLC model
BD
Model
Devices
Expansion port 1 description
Devices
Expansion port 2 description
LX5V
2PTS
SM2010
CH1 thermal resistance input
channel open flag
OFF: Open
ON: Close
SM2030
CH1 thermal resistance input channel
open flag
OFF: Open
ON: Close
SM2011
CH2 thermal resistance input
channel open flag
OFF: Open
ON: Close
SM2031
CH2 thermal resistance input channel
open flag
OFF: Open
ON: Close
SD2010
CH1 temperature at 0.1℃unit
(-190℃to 600℃: -1900to6000)
SD2030
The temperature of CH1 at 0.1°C
(-190℃to 600℃: -1900to6000)
SD2011
The temperature of CH2 at 0.1°C
(-190℃to 600℃: -1900to6000)
SD2031
The temperature of CH2 at 0.1°C
(-190℃to 600℃: -1900to6000)
(3) You can select device through I/O mapping to use the configuration function of new BD module. For
details, please refer to "6.1 Parameter configuration".
6 Instructions for use
6.1 Parameter configuration
① Open the host computer software and create a new project, double-click “Project Manager” →
“Extended Function” → "BD Module Configuration" Noteto enter “BD settings” interface;
② Configure the currently connected PLC (take the LX5V-2416 model as an example) and BD module
model on the BD module configuration interface: Select “LX5V-2PTS" in the device bar on the right side
of the BD module configuration interface and double-click to add it to the corresponding slot position of
PLC (slot number 1 or 2, the software will select slot 1 by default, and right-click to move down to slot
2);
③ After adding the BD module to the slot, double-click or right-click to select configuration parameters to
enter LX5V-2PTS-BD configuration parameters interface, as shown in the following figure. Configure
related parameters on this interface.

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Note: This function is only supported in the following versions of host computer, slave computer and BD
module:

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(1) Supported host computer versions: Wecon PLC Editor2 2.1.204 and above, as shown in the following
figure:
(2) Supported slave computer versions: 2.061 and above, as shown in the following figure:
(3) Supported BD module version number: 1013 and above, as shown in the following figure:

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The parameter configuration interface is as follows:
1、Module setting: Set response time (The response time is the interval time between PLC acquisition of
BD module data. Range: 0.1ms to 3276.7ms).
2、PTS configuration:
1Check enable channel to set whether to enable the current BD module channel.
2Sensor type: PT100 by default.
3Setting the filtering intensity can reduce the jitter of BD channel value. The default configuration of
filter intensity is 4. Level 0 is the lowest and level 9 is the highest. The filter intensity can be adjusted
according to actual use.
4Check enable overrun detection to judge that when the upper and lower limits of temperature exceed
the current setting temperature, the host computer will prompt an error.
5Check enable calibration, you could calculate the gain offset according to the following formula to
convert the corresponding channel value:

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Channel value = actual temperature value × gain value + offset value
When the channel value deviates from the actual temperature value, the channel can be calibrated by
setting the gain offset, for example:
▪ The input temperature of control channel is 0℃, the value of acquisition channel is 30 (unit: 0.1℃),
and the actual channel value should be 0 (unit: 0.1℃).
▪ The input temperature of control channel is 500℃, the value of acquisition channel is 5200 (unit:
0.1℃), and the actual channel value should be 5000 (unit: 0.1℃).
Suppose the gain is a, and the offset is b, then





ba
ba
*52005000
*300
,
Solve and get





9.01352-b
967118.0a
The calibration can be completed by setting the corresponding gain
offset to the current channel.
Note: Using gain and offset calibration can only reduce the linear error. Since the PT100 resistance and
temperature curve are nonlinear, there is still a certain error in partial temperature after the calibration is
successful.

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3、Set I/O mapping. The channels are mapped to R device according to the current number of BD module
channels by default. As shown in the following figure, BD module CH1 to CH2 is mapped to device R0 to R1.
4、After the above configuration is completed, check the program, download the configuration to PLC, and
STOP→RUN configuration takes effect.
6.2 Ladder Diagram
1、Programming example that does not use the host computer software "BD module configuration"
function. For device allocation, please refer to "5 PLC device description".
Open CH1 thermal resistance input
channel
Open CH2 thermal resistance input
channel
Write the digital value of CH1 to register
D0
Write the digital value of CH2 to register
D1

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2.Programming example using "BD module configuration" function of host computer software:
6.3 BD monitoring interface and buffer memory
Open the module monitoring interface, select BD module, select LX5V-2PTS from the list of BD modules
on the right to monitor it online, and check the current BD module communication status and error
information in time.
① PTS buffer memory (BFM): Used for BD module status monitoring.
BFM
address
Power
-off
hold
Read/
write
Memory name
Default
Range
Description
0x2000
×
R/W
Channel 1 channel
enable
1
0 to 1
0: Channel closed; 1: Channel open
0x2001
×
R/W
Channel 1 sensor type
0
0
0: PT100
0x2002
×
R/W
Channel 1 filter
intensity
4
0 to 9
0: Minimum filter strength; 9:
Maximum filter strength
0x2080
×
R
Channel 1 channel
value
32767
-32768 to 32767
Unit: 0.1℃
0x2082
×
R
Channel 1 status
information
1
0 to 2
0: Channel closed; 1: Channel
opened
2: Channel value exceeds the range
0x2084
×
R
Channel 1 error code
0
0 to 1
0: No error; 1: Channel value
exceeds the range
0x2100
×
R/W
Channel 2 channel
enable
1
0 to 1
0: Channel closed; 1: Channel open
0x2101
×
R/W
Channel 2 sensor type
0
0
0: PT100
0x2102
×
R/W
Channel 2 filter
intensity
4
0 to 9
0: Minimum filter strength; 9:
Maximum filter strength
0x2180
×
R
Channel 2 channel
value
32767
-32768 to 32767
Unit: 0.1℃
Map CH1 into R0 device
Map CH2 into R1 device