bmcm OR8 User manual

OR8/R8
Optocoupler/Relay cards
Connect digital signals.
Quite simple.
The optocoupler and relay boards OR8 and R8
are ideal to monitor and control digital states.
The digital inputs and outputs can be
connected directly via a screw-clamp
connection.
8 optocoupler inputs (OR8).
8 relay outputs (OR8, R8).
The eight optocouplers on the OR8 convert
digital inputs in the voltage range of 5..30V into
TTL signals. Via relays, the OR8 and R8 switch
eight control lines (TTL) with up to 6A.
Clearly safe.
Due to the galvanic isolation of the channels
from each other and from the data acquisition
and control system, the whole system is
perfectly protected.
Current states.
Eight LEDs each dedicated to the inputs and
outputs signalize if a channel is high or low.
Well supplied.
The R8 is operated with 5V. The OR8 is
powered with 9-40V but can also be configured
to 5V supply. The supply voltage is also
connected via screw-clamp terminals.
DIN rail mounting.
The optocoupler and relay boards are suitable
for DIN rail mounting. A DIN rail carrier (ZU-
EW) with bracket is already included with the
delivery of the OR8. It can be ordered as
accessory for the R8.
Compatibility.
Particularly simple is the connection to the
digital I/O interface USB-PIO as only a 25-pin
D-Sub extension cable is needed for
connecting.
Funktionsschaltbild

OR8/R8
Page 2
1Connections and pin assignments
The available connections and different components of the R8 and OR8 boards are shown in the
following figure of the board (view on top of the board (fitted with components), Sub-D connector on
the right).
1.1 Power supply
The R8 is supplied with 5V DC at the screw-clamp terminal, the OR8 can
be operated with 9..40V as well as with 5V (factory setting: 9..45V,
jumper open).
1.2 Optocouplers (OR8)
Connect the signal source (5..30V DC) to the screw
terminals IN1..IN8. The resulting output signal (TTL) is now
available at the 25-pin Sub-D male connector.
•Please carefully observe the polarity! Only apply voltages within the adjusted range!
•It is very important to turn the direction of the port packages to input, when connecting the OR8 to
the USB-PIO! Otherwise the cards might be damaged!
1.3 Relays (OR8, R8)
The responding of the relays OUT1..OUT8 depends on the applied
input level (TTL) at the 25-pin Sub-D male connector.
The R8 provides one-way switches with 2-pin terminals for the
relays, whereas the OR8 is equipped with two-way switches,
realized as 3-pin terminals. Therefore the circuit is always closed at
one of the upper two contacts (see figure on the right).
Do not apply any voltages higher than 60V at the relay contacts! Max. current: 6A.

OR8/R8
Page 3
1.4 Digital lines
1.4.1 OR8
As delivered, the OR8 is configured as follows:
•port A (bit 0..7) = outputs (relays 1..8)
•port B (bit 0..7) = inputs (optocouplers 1..8)
Pin assignment and direction of the digital lines at the D-Sub25
male connector of the OR8 can be defined by the user. This is
done by two ICs plugged on the corresponding sockets U10-U12
(for optocoupler inputs) and U14-U16 (for relay outputs).
That means that if connecting more than 8 digital lines, port C of a
USB-PIO can be used in this case for example.
A resistor array can be plugged on the input side (U10-U12) to pull
the them to low allowing for the inputs to have a defined state even
if no signal is applied (see table on page 4).
•Of course, only use one socket each for the inputs and for the
outputs!
•Please note, that the port direction set for the digital measuring
system must comply with the settings on the OR8, as
otherwise the board might be damaged.
The settings are specified in the following table and figure on the
right. The default setting is marked.
D-Sub25
IC on socket (Dig IN)
IC on socket (Dig OUT)
Pin
USB-PIO
OR8
U10
U11
U12
U14
U15
U16
Array
1
14
2
15
3
16
4
17
A/0
A/1
A/2
A/3
A/4
A/5
A/6
A/7
channel 1
channel 2
channel 3
channel 4
channel 5
channel 6
channel 7
channel 8
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
U12
(pin 1-10)
5
18
6
19
7
20
8
21
B/0
B/1
B/2
B/3
B/4
B/5
B/6
B/7
channel 9
channel 10
channel 11
channel 12
channel 13
channel 14
channel 15
channel 16
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
U11
(pin 1-10)
9
22
10
23
11
24
12
25
C/0
C/1
C/2
C/3
C/4
C/5
C/6
C/7
channel 17
channel 18
channel 19
channel 20
channel 21
channel 22
channel 23
channel 24
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
U10
(pin 1-10)
13
GND
GND

OR8/R8
Page 4
1.4.2 R8
Pin assignment and direction of the digital lines at the 25-pin D-Sub
male connector of the R8 are hard-wired. The control lines (TTL) for
the individual relay output channels OUT 1..OUT8 of an R8 have to
be applied to channels 1-8.
D-Sub25
Assignment
R8
USB-PIO (Port/Bit)
1
14
2
15
3
16
4
17
channel 1
channel 2
channel 3
channel 4
channel 5
channel 6
channel 7
channel 8
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
A/0
A/1
A/2
A/3
A/4
A/5
A/6
A/7
If using a digital I/O system from bmcm (e.g. USB-PIO) connected 1:1 to the R8, port A of the USB-
PIO must be set to input.
2Important notes for using the OR8/R8
•The OR8 and the R8 are only suitable for extra-low voltages –please observe the relevant regulations!
•An electrically isolated power unit (with CE) must be used for power supply.
•All accessible pins are electrostatic sensitive devices. Provide for an earthed conductive work place when
installing.
•Only use non-solvent detergents for cleaning. The product is designed to be maintenance-free.
•The board must not be used for safety-relevant tasks. With the use of the product, the customer becomes
manufacturer by law and is therefore fully responsible for the proper installation and use of the product. In the
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.
3Technical data (typical at 20°C, after 5min., +5V supply)
•Electrical data
Power supply (OR8):
9..40V DC (ex works, solder jumper open) or +5V DC (solder jumper closed), ±5%, max. 4W
Power supply (R8):
+5V DC, ±5%, max. 0.7A DC, max. 3.5W
Input voltage:
5..30V
Input current (OR8):
max. 17mA; response time of the optocouplers <1ms
Relay data (OR8, R8):
max. current: 6A DC; response time: 10ms; live period: 100000 cycles
•General data
Temperature range:
operating temp. 0..70 C, storage temp. -25..70 C
Relative humidity:
0-90% (not condensing)
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
Dimensions (L x W x H):
OR8: 167mm x 105mm x 33mm; R8:160mm x 100mm x 20mm
Available accessories (optional):
DIN rail set ZU-EW (OR8: included with delivery),
connecting cable ZUKA25, waterproof housing ZU-PBOX-PG, ZU-PBOX-LAN
Warranty:
2 years from date of purchase at bmcm, claims for damages resulting from improper use excluded
Manufacturer: BMC Messsysteme GmbH. Subject to change due to technical improvements. Errors and printing errors excepted. Rev. 3.1 02/11/2020