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4 channel measuring amplifier BSC4D
USB Version
Operating Instructions
15-183 Revision A

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mV/V measuring amplifier BSC4-USB
BSC4D-Cxx (M12)
Front view sensor connection
BSC4D-Dxx (SUB-D37)
Front view sensor connection
Description
This 4-channel measuring amplifier for sensors with strain gauges is equipped with a USB
interface. The DC supply voltage for the unit is provided via the USB port at the back of the
measuring amplifier. The measuring amplifier can be delivered with an SUB-D37 connection
or with 4x M12 ports. The unit also has eight digital inputs and outputs.
4-channels
• Power supply via USB port
• Inputs for mV/V / 0–5 V
• Measurement ranges 2 mV/V / 10 mV/V
• DMS quarter / half / full bridges
• 8 digital inputs / outputs
• Data rate 0 Hz–125 Hz

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Dimensions
(See page 32 for mounting instructions)
Figure 2: Dimensions BSC4D-Cxx (M12)
Figure 1: Dimensions BSC4D-Dxx (SUB-D37)

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Technical data
1.Accuracy class
0.05 %
Inputs
Resolution 16 Bit
DMS inputs
Full bridge
Half bridge
Quarter bridge
350-5000
350-5000
120 / 350 / 1000
Ohm
Ohm
Ohm
Common mode rejection
at 60 Hz common-mode signal
95–110 dB
Measurement frequencies
Data frequency 0–125 Hz
Sampling frequency 1.92 MHz
Cut-off frequency
analog
digital
1000
Notch filter
Hz
Hz
Outputs
Bridge supply voltage
Current load capacity
2.5
10
Volt
mA
Fixed voltage output
Current load capacity
5
20
V
mA
Switching outputs/inputs
I/O 1-8
Current load capacity:
TTL level
5 (active High)
5
V
mA
Interface USB 1.1, USB 2.0 compatible
Supply voltage
Nominal range
Isolation voltage
Current consumption
4.5...5.5 via USB port
1000
< 200
V DC
Vrms
mA
Temperature range
Nominal temperature range
Storage temperature range
Zero point drift
Sensitivity drift
-10…+65
-40…+85
< 0.05
< 0.01
°C
°C
%/10°C
%/10°C
Dimensions
L x W x H
106 x 119 (132) x 32
mm
Protection type / Weight
Protection type
IP40
Weight BSC4-USB SUB-D37
239
g

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Table 1: Technical data BSC4D
Connection plan for 37-pin D-sub port
BSC4D-Dxx assignment 37-pin D-sub port (PIN No.)
Channel 1 Channel 2 Channel 3 Channel 4
+U
S
positive sensor supply 20 2 11 29
+U
D
positive differential input 22 4 13 31
QB1000 quarter bridge extension 1kOhm 23 5 14 32
HB half bridge extension 24 6 15 33
-U
D
negative differential input 25 7 16 34
-U
S
negative sensor supply 27 9 18 36
UE analog input 28 10 19 37
screen 1 1 1 1
Table 2: Analog inputs
C
onnection assignment for BSC4D-Cxx (M12)
5-pin port M12x1, type 763
Top view:
5-pin Description Color code for
cables
2
-US negative bridge supply
white
1
+US positive bridge supply
brown
3
+UD positive differential input
blue
4
-UD negative differential input
black
5 AUXin input without cable grey

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C
onnection of full bridge with SUB-D37 version
The following graphics show the connection of a full bridge to channel 1 through to channel 4.

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C
onnection of half bridge with SUB-D37 version
The following graphics show the connection of a half bridge to channel 1 through to channel
4.
The bridge extension should be adapted depending on the application.

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C
onnection of quarter bridge with SUB-D37 version
The following graphics show the connection of a quarter bridge to channel 1 through to
channel 4.
The bridge extension should be adapted depending on the application.

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C
onnection of full bridge with M12 version
The following graphic shows the connection of a full bridge for the M12 version.
Connection of half bridge with M12 version
The following graphic shows the connection of a half bridge for the M12 version.
The bridge extension should be adapted depending on the application.
Please set the solder bridges:
•HB1 when using channel 1
with a half bridge.
•HB2 when using channel 2
with a half bridge.
•HB3 when using channel 3
with a half bridge.
•HB4 when using channel 4
with a half bridge.
Solder bridges: Figure 3: Solder bridges for
configuring bridge extensions
see page 11

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C
onnection of quarter bridge with M12 version
The following graphic shows the connection of a quarter bridge for the M12 version.
The bridge extension should be adapted depending on the application.
Please set the solder bridges:
•HB1 when using channel 1
with a quarter bridge.
•HB2 when using channel 2
with a quarter bridge.
•HB3 when using channel 3
with a quarter bridge.
•HB4 when using channel 4
with a quarter bridge.
Solder bridges: Figure 3: Solder bridges for
configuring bridge extensions
see page 11

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C
onfiguring the channel sensor impedance
The bridge sensor impedance can be configured individually for each channel; open the
device and configure the desired solder bridge according to the following figure.
Figure 4: Solder bridges for configuring bridge impedance

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A
ltering from mV/V input to a voltage input
Opening the device
1.Remove both screw covers from the input side and remove the fastening screws from the
front cover.
2.The two hexagonal bolts on the 37-pin D-Sub port must be loosened using a socket
spanner (5 mm).
3.The printed circuit board is pulled out on the side of the 25-pin D-Sub port.

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W
iring diagram for position sensors
The measuring amplifier BSC4D must be configured by the manufacturer separately when
using it with potentiometric position sensors (linear potentiometers or draw wire displacement
sensors) for the M12 version.
The position sensor’s wiper is connected to the measuring amplifier’s “Aux” input (M12) or “U”
(SubD37). The position sensor supplies via the sensor supply +Us and -Us.
5-pin port 37-pin D-SUB port
The potentiometric position sensor is supplied with 2.5 V.
The “Aux” input or U
E
records voltages of 0...5 V.
Connection assignment
Label 5-pin port 37-pin D-SUB port
CH 1 CH 2 CH 3 CH 4
positive supply +Us 1 positive supply +Us 20 2 11 29
negative supply -Us 2 negative supply -Us 27 9 18 36
“Aux” input 5
UE input
28 10 19 37

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C
onnection of the Way Con – draw wire sensor SX
4-pin port
Waycon draw wire
sensor SX
5-pin port Label Color code
M12 sensor-
actuator cable
1 (+supply) 1 positive supply +Us brown
3 (GND) 2 negative supply -Us blue
2 (wiper) 5 “Aux” input white
4-pin port
Waycon draw wire
sensor SX
37-pin D-SUB port
CH 1 CH 2 CH 3 CH 4
1 (+supply) 20 2 11 29 pos. supply +Us
3 (GND) 27 9 18 36 neg. supply -Us
2 (wiper) 28 10 19 37
UE input

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C
onnection assignment SUB-D25 port
BSC4D assignment 25-pin D-sub port (PIN-No.)
IO 5 V fixed voltage output 1
IO GND 2
IO 1 3
IO 2 4
IO 3 5
IO 4 6
IO 5 7
IO 6 8
IO 7 9
IO 8 10
TX 11
RX 12
GND 13
Channel 1 Channel 2 Channel 3 Channel 4
Channel GND 14 17 20 23
15 18 21 24
Channel AUX 16 19 22 25

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Wiring diagram
mV/V full bridge
c
h 1 ch 2 ch 3 ch 4
+Us 2 13 24 35
+Ud 3 14 25 36
-Ud 4 15 26 37
-Us 5 16 27 38
Sw. 1 12 23 34
mV/V half bridge
c
h 1 ch 2 ch 3 ch 4
+Us 2
13 24
35
+Ud 3
14 25
36
-Us 5
16 27
38
HBx 8
19 30
41
Sw. 1 12 23 34
The active strain gage R3 and R4 are connected to the terminals +Us,
+Ud and -Us.
HBx: The solder bridges “8”, “19”, “30” or “41” must be closed so that
the internal bridge completion resistors R1 and R2 are activated.
+Us
-Us
-Ud
+Ud
R1R2R3
R4
+Us
-Us
-Ud
+Ud
R1
R2
R3
R4

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m
V/V quarter bridge
c
h 1 ch 2 ch 3 ch 4
+Ud 3
14 25
36
-Us 5
16 27
38
HBx 8
19 30
41
AUX 6
17 28
39
QB 120 11
22 33
44
QB 350 10
21 32
43
QB 1000 9
20 31
42
Sw. 1 12 23 34
The active strain gage R4 is connected to the terminals +Ud, AUX and
-Us in 3-wire technology.
HBx: The solder bridges “8”, “19”, “30” or “41” must be closed so that
the internal bridge completion resistors R1 and R2 are activated.
A solder bridge should be set depending on the DMS resistance
(120/350/1000 Ohm), e.g. 120 Ohm at channel 1: Solder bridge 11
(vertical); 350 Ohm at channel 2: Solder bridge 21 (horizontal).
+Us
-Us
-Ud
+Ud
R1
R2
R5
R4
AUX

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V
oltage input 0-5 V
c
h 1 ch 2 ch 3 ch 4
7
18 29
40
-Us 5
16 27
38
Sw. 1 12 23 34
Voltage input 0-10 V
ch 1 ch 2 ch 3 ch 4
7
18 29
40
-Us 5
16 27
38
Sw. 1 12 23 34
-Us
0-5V
0-5V
-Us
0-5V
0-5V

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Programming / configuration
Scaling of measured values
Each channel can be configured individually for a defined measuring range, e.g.
For measuring
•with wire strain gauges 2 mV/V,
•with wire strain gauges 10 mV/V,
•with active sensors 0-5 V,
•with temperature sensors PT1000,
•with type K thermocouples,
•with active sensors 0–10 V,
The measuring range is set using the command “set_gain”.
105% of the input signal matches a value range of 0x0000 to 0xFFFF.
Measuring range 2.0 mV/V
Measuring range ±2 mV/V (set_gain 0xB2 <p1> <p2>) with p1=ch, p2=0x01
Input signal in mV/V Measuring range in % 16 Bit output value (hexadecimal)
2.1 105.00% FFFFh
2.0 100.00% F9E7h
0.0 0.00% 8000h
-2.0 -100.00% 0618h
-2.1 -105.00% 0000h
Conversion of digital output value to analogue input signal:
Output value = Highbyte * 256 + Lowbyte;
Input signal Ud = (output value - 32768) / 32768 * 2.10 mV/V;
Measuring range 10.0 mV/V
Measuring range ±10 mV/V (set_gain 0xB2 <p1> <p2>) with p1=ch, p2=0x02
Input signal in mV/V Measuring range in % 16 Bit output value (hexadecimal)
10.5 105.00% FFFFh
10.0 100.00% F9E7h
0.0 0.00% 8000h
-10.0 -100.00% 0618h
-10.5 -105.00% 0000h
Conversion of digital output value to analogue input signal:
Output value = Highbyte * 256 + Lowbyte;

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I
nput signal Ud = (output value - 32768) / 32768 * 10.5 mV/V;
Measuring range 0.0 to 5 V
Measuring range 0-5 V (set_gain 0xB2 <p1> <p2>) with p1=ch, p2=0x03
Input signal in V Measuring range in % 16 Bit output value (hexadecimal)
5.25 105.00% FFFFh
5.0 100.00% F9E7h
0.0 0.00% 8000h
Conversion of digital output value to analogue input signal:
Output value = Highbyte * 256 + Lowbyte;
Input signal Ud = (output value - 32768) / 32768 * 5.25 V;
Measuring range 0.0 to 10 V
Measuring range 0-10 V (set_gain 0xB2 <p1> <p2>) with p1=ch, p2=0x07
Input signal in V Measuring range in % 16 Bit output value (hexadecimal)
10.5 105.00% FFFFh
10 100.00% F9E7h
0.0 0.00% 8000h
Conversion of digital output value to analogue input signal:
Output value = Highbyte * 256 + Lowbyte;
Input signal Ue = (output value - 32768) / 32768 * 10.5 V;
Measuring range PT1000
Measuring range PT1000 (set_gain 0xB2 <p1> <p2>) with p1=ch, p2=0x04
Input signal in °C Measuring range in % 16 Bit output value (hexadecimal)
1050 105% FFFFh
1000 100% F9E7h
0.0 0.0% 8000h
-40 -4% 6DB0h
Conversion of digital output value to analogue input signal:
Output value = Highbyte * 256 + Lowbyte;
Input signal Ue = (output value - 32768) / 32768 * 1050 °C;
Measuring range K thermocouple cable
Measuring range K-thermocouple cable (set_gain 0xB2 <p1> <p2>) with p1=ch,
p2=0x06
Input signal in °C Measuring range in % 16 Bit output value (hexadecimal)

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Measuring range K-thermocouple cable (set_gain 0xB2 <p1> <p2>) with p1=ch,
p2=0x06
1050 105% FFFFh
1000 100% F9E7h
0.0 0.0% 8000h
-40 -4% 6DB0h
Conversion of digital output value to analogue input signal:
Output value = Highbyte * 256 + Lowbyte;
Input signal Ud = (output value - 32768) / 32768 * 1050 °C;
Commands for configuration
The code of the command concerned is sent to the measuring amplifier for configuration.
Some commands expect parameters, e.g. the channel number “ch” and potentially other
bytes.
Note: To set the configuration, the data transfer should be interrupted by sending the
command “stop_transmission”.
After completing the configuration, the data transfer can be restarted again by executing the
command “start_transmission”.
Notes: After each switch-on, the “normal mode” must be set in order to send commands (0x26
01 62 65 72 6C 69 6E).
List of commands
The table lists the available commands (rev0x0B) and their hexadecimal codes.
Commands Code p1 p2 p3 p4 p5 p6 p7 p8 p9
set_zero 0C ch
save_configuration 09 B
restore_configuration 0A B
set_offset 0B ch B HB B LB
get_offset 0D ch B
set_frequency 12 B
get_frequency 16
get_serial_number 1F
set_serial_number 1E B B B B B B B B
set_threshold 20 B HB LB
set_threshold 21 B
stop_transmission 23
start_transmission 24

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Commands Code p1 p2 p3 p4 p5 p6 p7 p8 p9
set_mode 26 B B B B B B B
get_mode 27
set_tx_status 28 B
get_tx_status 29
get_firmware_version 2B
get_value 3B
set_cal_factor 88 ch HB B B LB
get_cal_factor 89 ch B
set_rs232 B0 ch
get_rs232 B1
set_gain B2 ch B
get_gain B3
set_unit B4 ch B
get_unit B5 ch
set_digital B6 B
get_digital B7
set_digital_on_off B8 B B
get_digital_port B9
set_user_sring BC HB B B B LB
get_user_sring BD
get_bat BE
set_user_scale BA ch HB B B LB
get_user_scale BB ch HB B B LB
set_can_bitrate C0 B
get_can_bitrate C1
reserved C2
reserved C3
set_can_id C5 B B B B B
get_can_id C6 B
reserved C7
reserved C8

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Commands Code p1 p2 p3 p4 p5 p6 p7 p8 p9
reserved D0 B B B B B B B
reserved D1
reserved D2 B B
reserved D3
reserved D4
reserved D5 B B
reserved D6
Table 8: Command list for BSC4D (ch = channel number), B = byte, HB = high byte, LB = low byte)
Commands in grey are reserved for the initial setup or calibration. The commands shaded
grey are only available after restarting.
Description of commands
set_gain (B2)
With the command set_gain, the 4 inputs on the measuring amplifier can be configured
individually for various sensor types.
Parameters in HEX Description
01 DMS input ±2 mV/V
02 DMS input ±10 mV/V
03 Analogue input 0-5 V
04 Input for PT1000 -40°C ... 1000 °C
06 Input for K-thermocouple cable -40°C ... 1000 °C
07 Analogue input 0 – 10 V
set_frequency (12)
The data frequency is set with the command set_frequency. The measurement data is
acquired with the data frequency and are ready to be transmitted via the interface. By setting
the data frequency, the digital filter is set automatically, see data frequencies and filter
properties.
After executing the command “start_transmission”, the measurement data is transmitted
steadily at the set data frequency. After executing the command “stop_transmission”, the
measuring data is only sent when required. It can be requested with the command
“get_value” or for devices with CAN bus via CAN-Sync_ID (page Error! Bookmark not
defined.).

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Note: Care should be taken to ensure that the request for measured values does not occur
more frequently than the set data frequency. Otherwise, a current measured value will not be
available every time there is a request. The same measured values are requested repeatedly.
Parameters in HEX Data frequency in Hz(
nominal)
Data frequency in Hz(
effective)
A0 0.63 0.625
A1 1.25 1.250
A2 2.5 2.500
A3 3.75 3.750
A4 6.25 6.250
A5 7.5 7.500
A6 12.5 12.400
A7 15 14.700
A8 25 24.400
A9 125 114.000
AA 250 208.000
AB 500
AC 937.5
AD 1875
AE 3750
AF 7500
set_can_bitrate (C0) / get_can_bitrate (C1)
Parameters in HEX Bitrate in kbit/s
10 20
20 50
30 80
40 100
50 125
60 250
70 500 (standard)
80 1000

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s
ave_configuration (0A) / restore_configuration (09)
The entire configuration (data frequency, configuration of inputs, etc.) can be saved and
restored as a parameter set. Two memories are available for the configuration.
Parameters in HEX Description
01 Manufacturer setting
02 User setting 1
03 User setting 2
set_user_scale (BA) / get_user_scale (BB)
A scaling factor in 32 Bit format can be stored for each channel.
This scaling factor is stored in the EEProm of the measuring amplifier and can be read with
get_user_scale.
Parameters in HEX Memory No. Label
01 1 Channel 1
02 2 Channel 2
03 3 Channel 3
04 4 Channel 4
Number format:
Sign Index Significand
Bit 0 Bit 1 ... Bit 8 Bit 9 ... Bit 31
Protocol for measured values
Measured values are framed by a prefix 0xA5 and a postfix from the sign 0x0D 0x0A (carriage
return linefeed).
The entire frame is 11 bytes long.
Prefix Channel 1 Channel 2 Channel 3 Channel 4 Postfix
A5 HB LB HB LB HB LB HB LB 0D 0A
Table 9: Protocol for transmitting the measured values via RS232 interface
Protocol for commands
After switching on, only the commands:
get_value (0x3B)
set_mode (0x26 01 62 65 72 6C 69 6E)

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g
et_mode (0x27)
get_tx_status (0x29)
get_firmware_version (0x2B)
can be used! To be able to use all of the commands, “set_mode” has to be sent.
Commands begin with the code followed by parameters.
Code Parameter
xx p1 p2 ... pn
Examples:
Requesting serial number 1F
Setting channel 1 to zero: 0C 01
Protocol for responding to commands
Responses are framed by a prefix 0x3B and a postfix from the sign 0x0D 0x0A (carriage
return linefeed).
The entire frame has a variable length. The number of frames still to follow is given with “n”.
The number of variable bytes is defined in the fourth and fifth Byte with the data word “len”.
The entire length of the response is (10 + len) bytes.
The command “get_value” is an exception. The response to this command takes place with a
protocol for measured values.
Prefix Code
n len No. len bytes Postfix
3B xx B HB LB aa bb cc p1 p2 ... pn 0D 0A
Table 10: Protocol for responding to commands
Example: Releasing commands
Send: 0x26 01 62 65 72 6C 69 6E
Example: Locking commands
Send: 0x26 00 62 65 72 6C 69 6E
Example: Request serial number
Send: 0x23
Send: 0x1F
Receive 0x 3B 1F 0100 08 30 35 30 30 38 34 34 39 30 35 30 0D 0A
Send 0x24
Result: The serial number is “08449050”.
Example: Change status(Send measured value OFF/ON)
To permanently save the value send stop or start measured value, the command

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s
et_tx_status (0x28<p1>) can be used.
Parameters in
HEX
Parameters in Bit Current After switching on
00 0 0 0 0 0 0 0 0 Send measured value
OFF
Send measured value OFF
01 0 0 0 0 0 0 0 1 Send measured value
OFF
Send measured value ON
02 0 0 0 0 0 0 1 0 Send measured value
ON
Send measured value OFF
03 0 0 0 0 0 0 1 1 Send measured value
ON
Send measured value ON
Send: 0x23
Send: 0x29
Receive : 0x 3B 29 0100 01 30 33 33 01 0D 0A
Result: Current-OFF , After switching on-ON
Send: 0x28 02
Send: 0x29
Receive : 0x 3B 29 0100 01 30 33 33 02 0D 0A
Result: Current-ON , After switching on-OFF
Digital IOs
The entire port is always read (IO8 to IO1).
-4Example: Read port
Send: 0x23
Send: 0xB9
Receive : 0x 3B B9 0100 01 30 33 33 00 0D 0A
Result: all inputs and outputs are “low”
Parameters in
HEX
Parameters in Bit Port
00 0 0 0 0 0 0 0 0 IO8 IO7 IO6 IO5 IO4 IO3 IO2 IO1
The digital port can be configured with set_digital (0xB6 <p1><p2>) and
set_digital_on_off(0xB8 <p1> <p2>). The port is set with <p1>/
set_digital (0xB6 <p1> <p2>)
Parameters in HEX <p2> Description

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Parameters in HEX <p2> Description
00 Input
01 Output
02 get_Value
0A Tara all
0B Tara channel1
0C Tara channel2
0D Tara channel3
0E Tara channel4
11 SW1
12 SW2
13 SW3
14 SW4
15 SW5
16 SW6
17 SW7
18 SW8
set_digital_on_off(0xB8 <p1> <p2>)
Parameters in
HEX <p2>
Parameters in Bit Port Description
00 0 0 0 0 0 0 0 0 For IO1 to IO8 OFF
01 0 0 0 0 0 0 0 1 For IO1 to IO8 ON
Example: Change IO1
Send: 0x23
Send: 0xB6 01 0B
Send: 0xB7
Receive : 0x 3B B7 0100 02 30 33 33 01 0B 0D 0A
Result: IO1 is configured as Tara for channel1

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S
end: 0xB6 01 00
Send: 0xB7
Receive : 0x 3B B7 0100 02 30 33 33 01 00 0D 0A
Send: 0x24
Result: IO1 is configured as an input and can be read with 0xB9
set_threshold (0x20 <p1> <p2>)
Parameters in HEX <p1> Description Channel
assignment
Switching
threshold
01 SW1 1 ON
02 SW1 1 OFF
03 SW2 1 ON
04 SW2 1 OFF
05 SW3 2 ON
06 SW3 2 OFF
07 SW4 2 ON
08 SW4 2 OFF
09 SW5 3 ON
0A SW5 3 OFF
0B SW6 3 ON
0C SW6 3 OFF
0D SW7 4 ON
0E SW7 4 OFF
0F SW8 4 ON
10 SW8 4 OFF
By setting the on and off switching thresholds differently, a hysteresis can be programmed.
The second parameter (<p2>) is the switching threshold in HEX e.g.: 0x89 FF.
Caution: in order to compare the threshold value with the measured value directly, it has to be
added with 0x80 00.
Example: Configuration of SW1 IO8 ( or digital 5)
Send: 0x 23
Send: 0x B6 08 11
Configure IO8 for SW1

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S
end: 0x 20 01 01 00
The turn-on threshold of SW1 is set to 0x81 00.
Send: 0x 20 02 FE 00
The turn-off threshold of SW1 is set to 0x7E 00.
If the measured value increases above 0x81 00, IO8 is switched on. If the measured value
falls below 0x7E 00, IO8 is switched off.
Analog input
Example: Requesting the configuration of analog inputs
Send: 0x23
Send: 0xB3
Receive : 0x 3B B3 0100 04 30 35 30 01 01 02 03 0D 0A
Send 0x24
Result: Channel 1 = 2 mV/V, channel 2 = 2 mV/V, channel 3 = 10 mV/V, channel 4 = 0-5 V;
Example: Setting the configuration of analog inputs
Specification: configuring channel 1 to channel 4 for PT1000
Send: 0x23
Send: 0xB2 01 04
Send: 0xB2 02 04
Send: 0xB2 03 04
Send: 0xB2 04 04
Send 0x24
Example: Setting the data frequency to 12.5 Hz
Specification: The measured value should be sent steadily with a frequency of approx. 12.5/s.
Send: 0x23
Send: 0xA6
Send 0x24

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Data frequency and filter
Analog filter
The integrated analog filter is a first-order low-pass filter with a cut-off frequency of 1 kHz. It is
set as an antialiasing filter for the A-D converter. This filter is permanently installed and cannot
be changed.
Digital filter
The digital filter is indirectly set with the data frequency. The effective data frequency may
differ slightly from the set (nominal) data frequency. The grey shaded settings are
recommended as with these settings faults with a mains frequency of 50 Hz are best
suppressed by the integrated “notch filter”.
Data frequency
in Hz (nominal)
in Hz
(effective)
Notch
frequency in
Hz
-3db cut-off
frequency in Hz
(digital filter)
Parameters for “set
frequency”
250
208 1000 441 0xAA
125
114 500 221 0xA9
25
24.4 100 44.2 0xA8
15
14.7 60 26.5 0xA7
12.5
12.4 50 22.1 0xA6
7.5
7.5 30 13.3 0xA5
6.25
6.25 25 11.1 0xA4
3.75
3.75 15 6.63 0xA3
2.5
2.5 10 4.42 0xA2
1.25 1.25 5
2.21 0xA1
0.625
0.625 2.5 1.1 0xA0
Table 14: data frequencies and filter properties

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BSC4 Mounting Kit
The BSC4 comes with a bracket kit suitable for mounting the unit to a wall or plate.
Contents:
4X Wall Brackets
4X Screws for attaching the brackets to the housing
4X Bracket seals
Required tools: T10X80 Torx driver.
Carefully remove the black plugs shown in the picture above and remove the Torx screws
underneath. Press the black rubber seals into the holes and use the black Torx screws
provided with the mounting kit to attach the brackets.
The mounting feet can be oriented either inboard or outboard as needed.