bmcm BP104 User manual

BP104
PC/104 carrier board for miniature amplifiers of the MAL series
Features Applications
•8 sockets for MAL amplifiers •supervision of processes
•integrated power supply •control
•mounting in PC/104 systems •development
Page 1
The PC/104 carrier board BP104
provides for 8 DIL sockets to plug
in
... 8 measuring amplifiers ...
of the MAL series. Integrated into
a PC/104 system together with a
PC measuring card you get an
efficient complete measuring sys-
tem. The BP104 provides the
plugged MAL and connected sen-
sors with
... electrically isolated
power supply ...
from the PC/104 system. The
measuring amplifiers required for
signal conditioning are
... reasonable ...
standard measuring amplifiers.
On account of the missing electri-
cal isolation of the measuring
amplifiers remember to have a
good shared potential of the meas-
ured signals to receive optimum
results.
The in- and output signals are
connected at one plug each.
The bmcm measuring systems
provide for an internal connection
for the analog inputs, so that the
output signals with short lines can
be lead inside the device between
the BP104 and the measuring
system.
Connections
The figure on the right gives an overview of the com-
ponents and the connections of the BP104.
P3 is the analog input plug, P1 the analog output
plug.
The power supply is lead out at the PC/104 system
plug. The 5V DC voltage is electrically isolated by a
DC/DC converter on the BP104.
The amplifiers slots are numbered from channel 1 = 1
to channels 8 = 8 on the board. When mounting the
MAL measuring amplifiers on the carrier board
please observe their correct alignment (Pin1).

BP104
© BMC Messsysteme GmbH Page 2
Analog input plug P3
The connection for the 8 analog inputs is realized as a 20 pole pin connector.
Pin Analog IN Function
1/2 +IN1/-IN1 measuring amplifier input 1
3/4 +IN2/-IN2 measuring amplifier input 2
5/6 +IN3/-IN3 measuring amplifier input 3
7/8 +IN4/-IN4 measuring amplifier input 4
9/10 +IN5/-IN5 measuring amplifier input 5
11/12 +IN6/-IN6 measuring amplifier input 6
13/14 +IN7/-IN7 measuring amplifier input 7
15/16 +IN8/-IN8 measuring amplifier input 8
17/18 +5V current output for sensor supply
19/20 GND GND potential
Analog output plug P1
The connection for the 8 analog outputs is realized as a 16 pole pin connector.
Pin Function
1 measuring amplifier output 1
3 measuring amplifier output 2
5 measuring amplifier output 3
7 measuring amplifier output 4
9 measuring amplifier output 5
11 measuring amplifier output 6
13 measuring amplifier output 7
15 measuring amplifier output 8
2,4,6,8,10,12,14,16 ground (GND)
PC/104 system connector
The PC/104 system connectors of the BP104 are used for power supply only. All other lines are just connected through
the PC/104 system connector. The pin assignment complies with the PC/104 standards. For further information about
the PC104 standard visit the web at www.pc104.de .
The +5V DC are lead out at pin B3, B29 and D16 of the PC/104 system plug. The 0V can be taken from pin A32, B1,
B10, B31, B32, C0, D0, D18, D19 of the PC/104 system plug.

BP104
© BMC Messsysteme GmbH Page 3
Measuring amplifier slots
The pin assignment of the measuring amplifier sockets is illustrated in the figure
on the right and the following table if using MAL amplifiers.
For using the appropriate measuring amplifier we refer to the documentation of
the MAL.
If you don't need a slot, e.g. if you only measure voltages, you can skip it by clos-
ing the two soldering bridges underneath this slot on the bottom side of the back-
plane.
Pin Name Function Pin Name Function
1 n.c. - 13 n.c. -
2 n.c. - 14 n.c. -
3 +EX + sensor supply 15 n.c. -
4 +IN HI signal input 16 -UB negative supply (-12V)
5 -IN LO signal input 17 n.c. -
6 -EX - sensor supply 18 n.c. -
7 n.c. - 19 n.c. -
8 n.c. - 20 n.c. -
9 n.c. - 21 n.c. -
10 n.c. - 22 OUT amplifier output (±5V)
11 GND ground 23 n.c. -
12 n.c. - 24 +UB positive supply (+12V)
•When mounting the measuring amplifiers on the carrier board please observe their correct alignment and
change them only at no load!
•If the BP104 is supplied with MAL measuring amplifiers, the standard construction height of 15mm is ex-
ceeded, so that you possible have to keep more space to the next PC/104 board.
•Please make sure that the BP104 with the amplifiers is not exposed to high temperature changes e.g. by the
power supply. This may lead to drift reactions of the amplifiers otherwise.
Connecting examples for the BP104
The sensor supplies of the measuring
amplifiers are not lead out to the input
plug of the BP104 (exception: resistance
measurement as 2-wire measurement).
The sensor supply (+5VDV) is produced
electrically isolated separately from the
measuring amplifiers on the BP104.
For half-bridge measurements the half-
bridge must be supplemented with precise
resistors (e. g. 1kΩ0.1%).

BP104
© BMC Messsysteme GmbH Page 4
Important notes for using the BP104
•The BP104 is only suitable for extra-low voltages, please observe the relevant regulations!
•Only use an electrical isolated power supply unit (with CE).
•All accessible pins are electrostatic devices. Workplace must be conductive during installation.
•The construction height depends on the height of the used measuring amplifiers.
•The BP104 must only be used in closed housings (for reasons relating to EMC).
•For cleaning use water and mild detergent only.
•The device is designed to be maintenance-free. To calibrate the board it must be sent in to bmcm.
•The sensors or signals are connected at the input plug. Make sure to use shielded cables.
•For a good noise suppression connect the shield to ground at one end only. Close open inputs if possible.
•The BP104 ground is electrically connected to the next connected measuring system and therefore also to the
ground of the PC, which is usually also connected to earth. Be sure to avoid earth and ground loops during sensor
wiring, since they will cause measuring errors!
•The device must not be used for safety-relevant jobs. With the use of the product the customer becomes manufac-
turer by law and is therefore fully responsible for the proper installation and use of the product. In case of improper
use and/or unauthorized interference our warranty ceases and any warranty claim is excluded.
Do not dispose of the product in the domestic waste or at any waste collection places. It has to be either duly
disposed according to the WEEE directive or can be returned to bmcm at your own expense.
Standard measuring amplifiers available for the BP104
Order number Physical quantity to be measured Measuring range
MAL-UI voltage or current ±10V, ±5V, ±1V, ±20mA
MAL-PT100 temperature with PT100 (linearized) 0..300°C
MAL-R1K resistance 0..1kΩ
MAL-SG2 strain gauge at 5V DC excitation ±2mV/V
MAL-SG5 strain gauge at 5V DC excitation ±5mV/V
MAL-THR thermocouple type K (without linearization) 0..1250°C
MAL-ISO10 voltage ±10V
MAL-ISO5 voltage ±5V
MAL-ISO1 voltage ±1V (factory setting), ±20mA
Ex works the MAL-UI are configured in the measuring range ±10V. For MAL-THR the cold junction compensation is not realized.
Technical data BP104 (typical at 20°C)
•General
Power supply: +5V DC from the PC/104 power supply
No-load current: app. 25mA
Operating current: max. 250mA
Sensor supply: 1x +5V DC, max. 20mA, accuracy typ.: ±0.25%, TK typ.: 20ppm
Amplifier supply: app. ±12V max. 20mA
Dimensions: app. 90mm x 96mm x 25mm
Temperature range: -25°C..+70°C
Relative humidity: 0 - 90% (not condensing)
Max. permissible potentials: 60V DC acc. to VDE
CE standards: EN61000-6-1, EN61000-6-3, EN61010-1; for decl. of conformity (PDF) visit www.bmcm.de
ElektroG // ear registration: RoHS and WEEE compliant // WEEE Reg.-No. DE75472248
Accessories: miniature measuring amplifiers and converters of the MAL / MAL-ISO series,
PC/104 base board GP
Delivery: product, bolts M3 x 15mm, description
Guarantee: 2 years with effect from sales date, damages at product caused by improper use excluded
•Connections
Amplifier inputs: 20-pole pin connector
Power supply: via PC/104 system plug
Amplifier outputs: 16-pole pin connector
Manufacturer: BMC Messsysteme GmbH. Subject to change due to technical improvements. Errors and printing errors excepted. Rev. 1.0 03/12/2009