Specifications are subject to change without notice USCDS040706
1
Multi-input modular signal's conditioner
0.1% RDG basic accuracy
TRMS AC current and voltage measurements
AC/DC current measurements; selectable full scales
(200A to 5A)
AC/DC voltage measurements; selectable full scales
(200mV to 500V)
C or F temperature measurements
(Pt100-250-500-1000, Ni100, TC J-K-S-T-E)
Resistance measurements; selectable full scales
(20
to 20k)
Up to 4 independent alarm set-points (optional)
20mA/10VDC analog output (optional)
Serial port RS485 or RS232 (optional)
MODBUS, JBUS communication protocol
Front protection degree: IP 20
Product Description
p-based signal's condition-
er, for current, voltage, tem-
perature and resistance
measurements. Measuring
ranges and functions easily
programmable from the PC
by means of optional Usc-
Soft software available on
request. UscSoft includes
programming, display and
min-max functions. Condi-
tioner's housing for DIN-
RAIL mounting with front
protection degree: IP 20. All
displaying and programming
data are referred to UscSoft.
Digital Panel Meters
Modular signal conditioner
Type USC-DIN
Type Selection
Slot A (measuring inputs)
LSX:
single channel input:
0.2-2-20mA DC/AC,
0.2-2-20V DC/AC
LSE/
LSF:
single + AUX input :
0.2-2-20mA DC/AC;
0.2-2-20V DC/AC
HSX:
single channel input:
0.2-2-5A DC/AC;
20-200-500V DC/AC
TRX:
signal input: TC tem-
perature probes: J-K-S-
T-E, Pt100-250-500-
1000 and resistance
0.02-0.2-2-20k
Slot B (communication)
XX:
None
SX:
Serial port RS485
SY:
Serial port RS232
Slot C (communication and alarm)
XX:
None
R1:
Single relay output,
(AC1-8AAC, 250VAC)
R2:
Dual relay output,
(AC1-8AAC, 250VAC)
R4:
Dual relay output,
(AC1-8AAC, 250VAC) +
dual open collector out-
put (NPN, 100mA)
R5:
4 Relay outputs (AC1-
5AAC, 250VAC)
AV(*): Single analogue out-
put:
0 to 20mA DC and
0 to 10V DC
Slot E (power supply)
H:
90 to 260V AC/DC
L:
18 to 60V AC/DC
Options
XX:
None
TX:
Tropicalization
Model
Slot A
Slot B
Slot C
Slot D
Slot E
Options
How to order
USC XXX XX XX XX X XX
Linearization of V and A inputs up to 16 points
How to order
UscSoft-kit
UscSoft-kit: software plus "UCOM1" communication cable for
programming USC by means of PC.
Slot D (communication)
XX:
None
AV(*): Single analogue out-
put,
0 to 20mA DC and
0 to 10V DC
(*):
The two analogue
outputs cannot be
used at the same
time. It is possible to
plug in only one
module by signal
conditioner.
2
Specifications are subject to change without notice USCDS0407063
USC
Analogue inputs
Measuring module
BQ LSX module
1, mA and V DC/AC
BQ LSE/LSF module
1, mA and V DC/AC + AUX
BQ HSX module
1, A and V DC/AC
BQ TRX module
1, temperature
BQ TRX module
1, resistance
Digital inputs (CMD)
Incl. in the measuring module
Number of inputs
1 (voltage-free)
Use
Reset of latch alarms
Contact reading signal
BQ xxx: <0.1mA, <3.5V DC
BQ LSE/LSF: <2.5mA,
<14V DC
Close contact resistance
Max 1k
Open contact resistance
Min 500k
Insulation
Non-insulated
Accuracy (RS485)
See table "Measuring
accuracy", temperature drifts
and minimum-maximum
indications"
Additional errors
Humidity
0.3% RDG, 60% to 90% R.H.
Input frequency
0.4% RDG, 62 to 440 Hz
Magnetic field
0.5% RDG @ 400 A/m
Temperature drift
See table "Measuring
accuracy, temperature drifts and
maximum minimum indications"
Sampling rate
BQ LSX module
500 samples/s @ 50Hz
BQ LSE/LSF module
500 samples/s @ 50Hz
BQ HSX module
500 samples/s @ 50Hz
BQ TRX module
500 samples/s @ 50Hz
Measurement updating
200 msec @ 50 Hz
Resolution of measurements
10.000 points (4-dgt)
Max. and min. indications
See table "Measurement
accuracy, temperature drifts
and max min indications"
Measurements
Current, voltage, tempera-
ture and resistance. For the
current and voltage mea-
surements: TRMS measure-
ment of distorted sine
waves.
Coupling
Direct.
Crest factor
3; A
Pmax
=1,7In; V
Pmax
=1,7Un
Input impedance
See table "input
impedances and overloads"
Frequency
40 to 440 Hz
Overload
See table "input
impedances and overloads"
Compensation
Only temperature
measurement module.
RTD
- For Pt 100-250-500-1000,
3-wire connection: up to 10
- For resistance measur. with
20
range: up to max 0.1
- For resistance measurements
with
200range: up to max 10
TC
Internal cold junction, within
temperature range from
0 to +50C.
Automatic or manual
compensation from 0 to 50C.
Input Specifications
AUXILIARY DIGITAL INPUTS
(F
UTURE
F
UNCTION
)
A
LARM
O
UTPUTS
C
OMMUNICATION
P
OWER SUPPLY
I
NTERNAL
B
US
M
EASURING
I
NPUTS
+
D
IGITAL
I
NPUTS
+
A
UXILIARY
P
OWER
S
UPPLY
Measuring inputs:
DC/AC: mA-mV-V
DC/AC: A-V
C/F: TC-Pt-Ni-
Digital input:
Alarm reset
Auxiliary power supply:
13V / 50mA DC
25V / 25mA CC
Remote programming by
means of PC
90 to 260V AC/DC
18 to 60V AC/DC
Analogue outputs:
1 x 20mA/10V DC
Serial ports:
RS485
RS232
1 alarm
2 alarms
4 alarms
USC architecture
Specifications are subject to change without notice USCDS040706
3
USC
Module
Inputs
Type
Accuracy
Temp. drift
Min. indication ( )
Max. indicat. ( )
BQ LSX/
BQ LSE/
BQ LSF
-200A to +200A
-2mA to +2mA
-20mA to +20mA
-200mV to +200mV
-2V to +2V
-20V to +20V
DC/AC
DC: (0.1%RDG+3DGT)
0%to 25% FS;
(0.1%RDG+2DGT)
25% to 110% FS.
TRMS (45 to 65Hz)*:
(0.3%RDG+3DGT)
0% to 25% FS;
(0.3%RDG+2DGT)
25% to 110% FS.
150 ppm/C
- 200.0
- 2.000
- 20.00
- 200.0
- 2.000
- 20.00
+ 200.0
+ 2.000
+ 20.00
+ 200.0
+ 2,000
+ 20.00
BQ HSX
-200mA to +200mA
-2A to +2A
-5A to +5A
-20V to +20V
-200V to +200V
-500V to +500V
DC/AC
DC: (0.1%RDG+3DGT)
0% to 25% FS;
(0.1%RDG+2DGT)
25% to 110% FS.
TRMS ( 45 to 65Hz)*:
(0.3%RDG+3DGT)
0% to 25% FS;
(0.3%RDG+2DGT)
25% to 110% FS.
150 ppm/C
- 200.0
- 2.000
- 5.000
- 20.00
- 200.0
- 500.0
+ 200.0
+ 2.000
+ 5.000
+ 20.00
+ 200.0
+ 500.0
BQ TRX
Thermo-
couple
-50C to +760C
-58 F to +1400 F
-200C to +1260C
-328 F to +2300F
-200C to +1000C
-328F to +1832F
-50C to +1750C
-58F to +3182F
-200C to +400C
-328F to +752F
J
J
K
K
E
E
S
S
T
T
(0.2%RDG+1DGT)
(0.2%RDG+2DGT)
(0.2%RDG+2DGT)
(0.2%RDG+4DGT)
(0.2%RDG+2DGT)
(0.2%RDG+4DGT)
(0.2%RDG+2DGT)
(0.2%RDG+4DGT)
(0.2%RDG+2DGT)
(0.2%RDG+4DGT)
150 ppm/C
- 50C
- 58F
- 200C
- 328F
- 200C
- 328F
- 50C
- 58F
- 200C
- 328F
+ 760C
+ 1400F
+ 1260C
+ 2300F
+ 100C
+ 1832F
+ 1750C
+ 3182F
+ 400C
+ 752F
BQ TRX
Thermo-
resis-
tance
-200C to +850C
-328F to +1562F
-200.0C to +200.0C
-328F to +392F
-200.0C to +200.0C
-328F to +392F
-200.0C to +200.0C
-328F to +392F
-200.0C to +200.0C
-328F to +392F
-60C to +180C
-76F to +356F
Pt100
Pt100
Pt100
Pt100
Pt250
Pt250
Pt500
Pt500
Pt1000
Pt1000
Ni100
Ni100
(0.2%RDG +2DGT)
(0.2%RDG +4DGT)
(0.5%RDG +5DGT)
(0.5%RDG +5DGT)
(0.5%RDG +5DGT)
(0.5%RDG +5DGT)
(0.5%RDG +5DGT)
(0.5%RDG +5DGT)
(0.5%RDG +5DGT)
(0.5%RDG +5DGT)
(0.5%RDG +1DGT)
(0.5%RDG +2DGT)
150 ppm/C
- 200
- 328
- 200.0
- 328
- 200.0
- 328
- 200.0
- 328
- 200.0
- 328
- 60
- 76
+ 850
+ 1562
+ 200.0
+ 392
+ 200.0
+ 392
+ 200.0
+ 392
+ 200.0
+ 392
+ 180
+ 356
BQ TRX
Resis-
tance
0 to 20
0 to 200
0 to 2000
0 to 20.00k
(0.2%RDG+2DGT)
25% to 110% FS
(0.2%RDG+3DGT)
0% to 25% FS
150 ppm/C
0
0
0
0
20.00 ( )
200.0 ( )
2000 ( )
20.00 ( )
Measurement accuracy, temp. drifts, max and min indications
All accuracies and min/max indications are referred to an ambient temp. range of 25C 5C, rel. humidity
60% and scale ratio (electri-
cal/displayed scale) equal to 1. The conversion into F is obtained acting on the electrical/displayed scale ratio.
(*) <45Hz, >65Hz: (0.5%RDG+3DGT) 0% to 25% FS; (0.5%RDG+2DGT) 25% to 110% FS.
( ) The min. indication for TRMS measurement (AC or DC) is 0; it is possible to modify the decimal point position.
4
Specifications are subject to change without notice USCDS0407063
USC
Input impedances and overloads
(*) Max. generated measuring current for resistance equal to 0
Output specifications
RS422/RS485 (on
request)
Module: BR SX
Serial output
Bidirectional (static and
dynamic variables).
LED
Display of data
reception/transmission
Connections
Multidrop, 2 or 4 wires,
Distance
1000m
Terminalization
Directly on the module
by means of jumper
Addresses
1 to 255, selectable
by means of software
Protocol
MODBUS RTU/JBUS
Data (bidirectional)
Dynamic (reading only)
Measurement, min value
max value
alarm status
Static (reading/writing)
All programming parameters,
min max reset
Data format
8 data bit, no parity,
1 stop bit
Baud rate
selectable 4800, 9600,19200
and 38400 bit/s
Insulation
By means of opto-couplers
4000 V
rms
output to
measuring inputs
4000 V
rms
output to
power supply input
RS232
(on request)
Module: BR SY
Serial output
Bidirectional (static and
dynamic variables)
Connections
3 wires,
Distance
max. 15m
Data format
1 start bit, 8 data bit,
no parity, 1 stop bit
Baud rate
selectable 4800, 9600,
19200 and 38400 bit/s
Other characteristics
As per RS422/485
Module
Inputs
Type
Impedance
Overload (continuous)
Overload (1s)
BQ LSX/
BQ LSE/
BQ LSF
-200A to +200A
-2mA to +2mA
-20mA to +20mA
-200mV to +200mV
-2V to +2V
-20V to +20V
AC/DC
AC/DC
AC/DC
AC/DC
AC/DC
AC/DC
2.2k
22
22
2.2k
200k
200k
5mA
50mA
50mA
10V
50V
50V
10mA
150mA
150mA
20V
100V
100V
BQ HSX
-200mA to +200mA
-2A to +2A
-5A to +5A
-20V to +20V
-200V to +200V
-500V to +500V
AC/DC
AC/DC
AC/DC
AC/DC
AC/DC
AC/DC
1
0.012
0.012
2M
2M
2M
0.8A
7.5A
7.5A
750V
750V
750V
1A
100A
100A
1000V
1000V
1000V
BQ TRX
Thermo-
couple
-50C to +760C
-58 F to +1400 F
-200C to +1260C
-328 F to +2300F
-200C to +1000C
-328F to +1832F
-50C to +1750C
-58F to +3182F
-200C to +400C
-328F to +752F
J
J
K
K
E
E
S
S
T
T
I
LK
<0.5A
Max 5V
Max 10V
BQ TRX
Thermoresis-
tance
-200C to +850C
-328F to +1562F
-200,0C to +200,0C
-328F to +392F
-200,0C to +200.0C
-328F to +392F
-60C to +180C
-76F to +356F
Pt100
Pt100
Pt250/Pt100
Pt250/Pt100
Pt1000/Pt500
Pt1000/Pt500
Ni100
Ni100
800A (*)
800A (*)
90A (*)
90A (*)
800A (*)
800A (*)
800A (*)
800A (*)
Max 5V
Max 10V
BQ TRX
Resistance
0 to 20
0 to 200
0 to 2000
0 to 20.00k
800A (*)
90A (*)
800A (*)
90A (*)
Max 5V
Max 10V
Specifications are subject to change without notice USCDS040706
5
USC
Alarm output
(on request)
Alarm type
Over-range alarm,
up alarm,
down alarm,
down alarm with
start-up deactivation
up alarm with latch,
down alarm with latch
Alarm set-point
Adjustable from 0 to 100%
of displayed electric range
Hysteresis
0 to 100% of displayed range
On-time delay
0 to 255 s
Off-time delay
0 to 255 s
Output status
Selectable: normally energized
/de-energized
Min response time
500 ms, with filter excluded,
without alarm activation delay
Output channels
1 with module BO R1
(relay output).
2, independent with module
BO R2 (2 relay outputs).
4, independent with module
BO R4 (2 relay outputs +
2 open collector outputs).
BO R5 (4 relay outputs).
BO R1, R2, R4 relay outputs
Type SPDT
AC 1: 8A, 250VAC
DC 12: 5A, 24VDC
AC 15: 2.5A, 250VAC
DC 13: 2.5A, 24VDC
BO R5 relay output
Type SPST (NO)
AC 1: 5A, 250VAC
DC 12: 3A, 24VDC
AC 15: 1.5A, 250VAC
DC 13: 1.5A, 24VDC
Insulation
4000 V
RMS
output to
measuring input,
4000 V
RMS
output to
power supply input.
Open collector output
NPN transistor type
V
ON
1.2 VDC/ max. 100 mA
V
OFF
30 VDC max.
Insulation
By means of opto-couplers
4000 V
RMS
output to
measuring input
4000 V
RMS
output to
power supply input
Single analogue output
(on request)
Module: BO AV
Range
0 to 20 mADC, 0 to 10 VDC
Scaling factor
Programmable within the
entire retransmission range;
allows to manage the
retransmission of all the
values from
0 to 20 mA / 0 to 10V
Accuracy
0.2% FS (@ 25C 5C)
Response time
10 ms
Termperature drift
200 ppm/C
Load: 20 mA output
700
10 V output
10 k
Insulation
By means of opto-couplers
4000V
rms
output to
measuring input
4000V
rms
output to
power supply input
Notes:
The two outputs cannot be
used at the same time.
Excitation output
(on request)
BQ LSE Module
Voltage
13 VDC 10%
max. 50 mA
BQ LSF Module
Voltage
25 VDC 10%
max. 25 mA
Insulation
25V
rms
output to
measuring input
4000 V
rms
output to
power supply input
Output characteristics (continuous)
displayed scale
compression/expansion
(max. 2 without filter, up to
10 with filter)
Electrical range
Programmable within the
whole measuring range
Decimal point position
Programmable within the
display range
Displayed range of the variable Programmable within the
display range
Diagnostics (only with Usc Soft) The display flashes when the
limits of the display range
are exceeded and the data
are updated up to 20%
of the rated display range.
Burn-out:
Only temperature inputs
Min / Max storage
Automatic storage
(in the EEPROM) of the
minimum and maximum
measured value from the
previous memory reset
Measurement selection
Depending on the module:
measuring range and type of
probe (resistance, RTD
thermoresistance, TC
thermocouple) or measuring
type (TRMS or DC).
Integration time selection
Automatic or from 100.0 to
999.9 ms only in the current
and voltage measurement.
Scaling factors
Operating mode
Electrical scale compression,
Software functions
6
Specifications are subject to change without notice USCDS0407063
USC
AC/DC voltage
90 to 260V (standard)
18 to 60V (on request)
Energy consumption
30VA/12W (90 to 260V)
20VA/12W (18 to 60V)
Supply Specifications
Linearization
Points
Up to 16
Input range
Selectable by every
single point
Output range
Selectable by every
single point
UscSoft
Software for
programming USC
by means of PC (Windows 95,
98se, ME, XP) by means of
serial port RS485 and
relevant connection cable.
UscSoft includes
programming, displaying,
min-max storage functions.
The software is available in
English, Spanish, Italian,
German and French. See
also "The programming of
USC by means of PC".
TC
Opening of probe's
connection: EEE indication
RTD
Opening of probe's
connection: EEE indication
probe's short circuit:
-EEE indication.
Digital filter
Filter operating range
0 to 9999
Filtering coefficient
1 to 32
Scaling
Selection of min value
of the input range.
Selection of max value of
the input range.
Selection of decimal point
position.
Selection of min
display value.
Selection of max display
value.
Software functions (continuous)
Safety Standards
Safety
EN 61010-1, IEC 61010-1
Connections
Screw type
Wire section
Max 2.5mm
2
Housing
Dimensions
44 x 113 x 107 mm
Material
PC-ABS,
self-extinguishing: UL 94 V-0
Protection degree
IP20
Weight
560 g approx (included all
modules and packing)
Approvals
CE, UR, CSA
Operating
0 to 50C (32 to 122F)
temperature
(H.R. < 90% non-condensing)
Storage
-10 to 60C (14 to 140F)
temperature
(H.R. < 90% non-condensing)
Insulation reference
300 V
RMS
to ground
voltage
(500V input)
Insulation
See table "Insulation between
inputs and outputs"
Dielectric strength
4000 V
RMS
for 1 minute
Rejection
NMRR
40 dB, 40 to 60 Hz
CMRR
100 dB, 40 to 60 Hz
EMC
EN61000-6-2, IEC61000-6-2
EN61000-6-3, IEC61000-6-3
General Specifications
Specifications are subject to change without notice USCDS040706
7
USC
Available modules
Possible module combinations
Only for TRMS Measurements
Instantaneous effective
voltage (TRMS)
=
n
i
V
n
V
1
2
1
1
)
(
1
=
n
i
A
n
A
1
2
1
1
)
(
1
Used calculation formulas
Instantaneous effective
current (TRMS)
Type
N. of
channels
Ordering
code
USC main unit
BD XX
DC/AC input: 200A , 2mA, 20mA,
200mV, 2V, 20V
1
BQ LSX
DC/AC input: 200A , 2mA, 20mA,
200mV, 2V, 20V + excitation output
1
BQ LSE/
BQ LSF
DC/AC input: 200mA, 2A, 5A,
20V, 200V, 500V
1
BQ HSX
Input: 20
, 200, 2k, 20k
1
BQ TRX
TC: J-K-S-T-E, Pt100-250-500-1000, Ni100
1
BQ TRX
Analogue output 0 to 20mA, 0 to 10V
1
BO AV
Relay output
1
BO R1
Relay output
2
BO R2
Outputs: 2 relays + 2 open collectors
4
BO R4
Relay output
4
BO R5
RS485 Serial Port
1
BR SX
RS232 Serial Port
1
BR SY
Power supply 18 to 60V AC/DC
BP L
Power supply 90 to 260V AC/DC
BP H
Insulation between inputs and outputs
Meas.
inputs
Relay
output
Static
output
Analogue
output
Serial
Port
AUX
p.supply
90-260VAC/
DC p. supply
18-60VAC/
DC p.supply
Meas.
inputs
-
4kV
4kV
4kV
4kV
25V
4kV
4kV
Relay Out-
put
4kV
-
2kV
4kV
4kV
4kV
4kV
4kV
Static Out-
put
4kV
2kV
-
4kV
4kV
4kV
4kV
4kV
Analogue
Output
4kV
4kV
4kV
-
4kV
4kV
4kV
4kV
Serial Port
4kV
4kV
4kV
4kV
-
4kV
4kV
4kV
AUX
p.supply
25V
4kV
4kV
4kV
4kV
-
4kV
4kV
90/260VAC/
DC p. supply
4kV
4kV
4kV
4kV
4kV
4kV
-
-
18-60VAC/
DC p. supply
4kV
4kV
4kV
4kV
4kV
4kV
-
-
Excitation output
(*) Up to 1 module max.
Slot
Basic Unit
A
B
C
D
E
Measuring inputs:
LSX, LSE, LSF, HSX, TRX
RS485 serial port: SX
RS232 serial port: SY
Analogue output: AV (*)
Relay outputs and/or open
collector: R1, R2, R4, R5
Power supply: H, L
30
20
10
25
15
V
mA
0
10
20
30
40
50
60
5
Continuous
max. 30 s.
BQ LSE
BQ
LSF
8
Specifications are subject to change without notice USCDS0407063
USC
Wiring diagrams
Process signal wiring diagrams
Current measurements
4-wire connection to probe
Fig. 5
Current measurements
Voltage measurements
Fig. 1
Fig. 2
BQ LSE/LSF
BQ LSX/LSE/LSF
BQ LSX/LSE/LSF
Voltage measurements
4-wire connection to probe
Fig. 3
BQ LSE/LSF
Voltage measurements
3-wire connection to probe
Fig. 4
BQ LSE/LSF
Current measurements
3-wire connection to probe
Fig. 6
BQ LSE/LSF
P
r
o
b
e
p
o
w
e
r
s
u
p
p
l
y
-
+ Vdc
P
r
o
b
e
S
i
g
n
a
l
o
u
t
p
u
t
+
-
-
+ Vdc
+
-
+ Vdc
-
+
-
+ Vdc
+
P
r
o
b
e
P
r
o
b
e
P
r
o
b
e
P
r
o
b
e
Current measurements
2-wire connection to probe
Fig. 7
BQ LSE/LSF
+ Vdc
+
P
r
o
b
e
Voltage measurements
Fig. 9
BQ HSX
Current measurements
Fig. 8
BQ HSX
Wirings for high-level signals
-
~
+
~
-
~
+
~
-
~
+
~
-
~
+
~
P
r
o
b
e
p
o
w
e
r
s
u
p
p
l
y
P
r
o
b
e
S
i
g
n
a
l
o
u
t
p
u
t
P
r
o
b
e
p
o
w
e
r
s
u
p
p
l
y
P
r
o
b
e
S
i
g
n
a
l
o
u
t
p
u
t
P
r
o
b
e
p
o
w
e
r
s
u
p
p
l
y
P
r
o
b
e
S
i
g
n
a
l
o
u
t
p
u
t
P
r
o
b
e
p
o
w
e
r
s
u
p
p
l
y
P
r
o
b
e
S
i
g
n
a
l
o
u
t
p
u
t
Specifications are subject to change without notice USCDS040706
9
USC
Wiring diagrams of optional modules
BO AV: single analogue
output (10V, 20mA)
BP H: power supply
BP L: power supply
F1= 630mA T
250V 5x20mm
F1= 3.15A T
250V 5x20mm
Temp. measur. from thermoresistance
Temp. measur. from thermocouple
Resistance measurements
Fig. 10
Fig. 11
Fig. 12
Wiring diagrams for temperature measurements
BQ TRX
BQ TRX
BQ TRX
Wiring diagrams (cont.)
Wiring diagrams for power supply
BO R1: 1 relay output
BO R2: 2 relay outputs
BO R5: 4 relay outputs
10
Specifications are subject to change without notice USCDS0407063
USC
Programming USC by means of PC
USC is programmable by PC by means of the UscSoft software (available on
request). The user can program all parameters of USC that will be subsequently
uploaded and set in the instrument by the RS485 network (BR SX).
Should USC be without the RS485 serial module, all programming parameters
will be uploaded and set in the instrument by the RS232 auxiliary serial connec-
tion (1) located on the side of the measuring input module using the special con-
nection cable (2) available on request, as shown in the figures on the left. It is
also possible to program the instrument using the connector (1) by means of the
HyperTerminal Windows functions of a PC.
Note: the RS232 auxiliary port IS NOT insulated from the measuring inputs.
Ordering code of the cable (2): UCOM1
1
2
To PC
1
m
To USC
BO R4: dual relay output +dual open collector output:
the load resistances (Rc) must be designed so that the close contact current is lower than 100mA; the VDC voltage must
be lower than or equal to 30VDC.
VDC: power supply output
Vo+: positive output (open collector transistor).
GND: ground collector (open collector transistor).
BR SX: RS485 4-wire connection: additional devices provided with RS485 port (indicated as RS1,2,3...N) are connected
in parallel. The termination of the serial port is carried out only on the last instrument of the network. The serial module is
provided with a jumper for the termination of the RS485 network as shown in the figure above.
Note: particular types of cables or plants may require an external termination. For the network connections use twisted
cable type AWG26.
RS1,2,3...N
NON terminalized network.
Terminalized network
Wiring diagrams of optional modules (cont.)
Vdc
3
2
1
SY
TX
RX
GND
T
X
R
X
LED
1
5
6
9
5
2
3
BO SY: RS232 direct
connection to PC by
means of COM port.
RS232 has no termi-
nalization.
Specifications are subject to change without notice USCDS040706
11
USC
Dimensions
1
1
3
m
m
107 mm
44 mm
44 mm
Dimensions of optional module in scale 1:1
12
Specifications are subject to change without notice USCDS0407063
USC
BP L
Power supply:
18 to 60V AC/DC
BO R1
Single relay output
BO R2
Dual relay output
BO AV
Single analogue
output 10V, 20mA
BQ LSX, BQ LSE,
BQ LSF, BQ HSX,
BQ TRX
Measuring inputs
Input modules
Serial port modules
BR SX
RS485 Serial port
BP H
Power supply:
60 to 260V AC/DC
Modules
BO R5
4-relay output
Output modules
Power supply modules
BO R4
Dual relay output +
Dual open collector
Output modules
BR SY
RS232 Serial port
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