Omni bmcm OR8 User manual

OR8/R8
Optocoupler/Relay cards
Functional diagram
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 di-
rectly via a screw-clamp connection.
8 optocoupler inputs (OR8).
8 relay outputs (OR8, R8).
The eight optocouplers on the OR8 convert digi-
tal 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 con-
trol system, the whole system is perfectly pro-
tected.
Current states.
Eight LEDs each dedicated to the inputs and out-
puts 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 sup-
ply. 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.

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 o-
pen).
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 ap-
plied 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 install-
ing.
•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 manufac-
turer by law and is therefore fully responsible for the proper installation and use of the product. In the case of im-
proper 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 dis-
posed 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