Design and manufacturing of electronic devices
 
uPLCs & Microcontrollers
  ARM
  8051
  PIC32
  PIC18
RS485 Modules
  C4E/4SD
  C4E/4SA
  C8ED
  C8SD
  C8EA
  C8SA
  C24EDL
  C24SDL
  CHAR4
  CHAR5
  CD4
  CD6
  CD8
 T1 Terminal
 T2 Terminal
 Thermometer
  CCOM
 SEM1 Semaphore
RS485 Modules ModBus
  M4E/4SD
  M4E/4SA
  M8ED
  M8SD
  M8EA
  M8SA
  M24EDL
  M24SDL
Ethernet Modules
  ETH 8SD
  ETH 8ED
  ETH 8SA
  ETH 8EA
  ETH 4ST
Adapters
  RS232 - RS485/RS422
  IB RS485 - ETHERNET
  LA RS485 - ETHERNET
Power Supplies
 Switching
 DC-DC Converter
 Laboratory
 Lineal

RS485 Modules

The RS485 compact modules are designed to be mounted in clusters within a single control panel. For that the power supply was eliminated and more inputs/outputs were added.

The most important common features of this family of contact modules RS485 are:

  • Reduced standard size that allows it to be mounted on a "domestic" type electrical box (same size as thermal-magnetic and differential circuit breakers).

  • Complete encapsulation which prevents access to the electronics, maintaining the fact that the terminal strips are pluggable.
  • Status display via LEDs visible at the front panel, where there is also a small pocket for an informative label to be stored. The LEDs provide information about the status of the device, the communications and the inputs/outputs.

  • Single power supply at 24 DC for all modules connected to the network.

  • This new family of devices is equipped with more advanced software compared to the previous models, which improves communication and allows flexible configurations (there is a configuration memory and more switches).

  • Technical information of all the RS485 modules:

Additional information: 

C4E/4SD 
4 digital input/4 digital output compact module

This module has 4 digital inputs and 4 relay outputs.

The digital inputs can be externally activated or deactivated. Each input is associated with a 32-bit counter and an 8-bit frequency reader.

The features are:

  • 4 optocoupled inputs which can be activated with either 24 VDC / VAC and 220 VDC / VAC (properly configuring the card). These entries are grouped as follows: two inputs have two terminals each, while the rest are grouped in pairs sharing a common line.

  • Possibility to configure the inputs to act as latches in order not to miss a single pulse or flank.

  • Each input can be configured to act as positive or negative logic.

  • Possibility to activate an anti rebounds filter to properly read the inputs connected to limit switches, pushbuttons, relays, ...

  • 32-bit pulse counter associated to each entry whose values are maintained during power failure. It can count pulses up to a frequency of 1 KHz. The counter is stored in memory, nonvolatile, even in the absence of current.

    Digital outputs, implemented as 1-contact relays. The features are:

    • 4 1-contact relay outputs with ability to switch up to 5A at 250 VAC. The relays are optocoupled to the electronics and have a varistor that protects their contacts.

    • The relays are arranged similarly to the previous module inputs, namely, there are two relays that have two terminals each, and the rest are grouped two by two so that each has a terminal and one in common.

      The unit has a nonvolatile memory that allows pre-programming of the following parameters:

      • Values the relays must take when starting the unit.

      • Values the relays must take when the unit does not detect the presence of the control CPU.

C4E/4SA 
4 analog input/4 analog output compact module

This is a mixed module that has 4 12-bit analog inputs and 8 8-bit analog outputs. The inputs can be configured to measure current or voltage while the outputs provide a voltage while the outputs provide a voltage range between 0V and 10V. It is a mixed module that has 4 12-bit analog inputs and 8 8-bit analog outputs. The inputs can be configured to measure current or voltage while the outputs provide a voltage range between 0V and 10V.

The features are:

  • Individually configurable inputs as voltage of 0 to 2.5V or 0 to 10V or as intensity of 0 to 20 mA. It is not difficult to extend the range with external resistors.

  • The 12-bit resolution can be expanded by an oversampling internal algorithm with noise removal filter.

  • The 4 analog outputs of 0 to 10V are configurable from 0V to 11V (designed for installations where there is a voltage drop in cables and want to continue to have a range of 0 to 10V). The resolution of each output is 40 mV.

  • It has a nonvolatile memory that can be configured:

    • Values to be taken by the outputs when starting the module.

    • Values to be taken by the outpus when the unit detects that the control module is not communicating.

    • The front LEDs can be configured to activate when the input or output are within a certain range.

C8ED 
8 digital input compact module

This module has 8 digital inputs which can be enabled or disabled externally. Each input has associated with it a 32-bit counter and an 8-bit frequency reader.

The module's features are:

  • 8 opto-coupled inputs that can be activated with either 24 VDC / VAC or 220 VDC / VAC (properly configuring the card). These inputs are grouped as follows: two inputs have two terminals each, while the rest are grouped in pairs sharing a common line.

  • Ability to configure inputs to act as latches in order not to lose any pulse or edge.

  • Each input can be configured to act as positive or negative logic.

  • Ability to turn activate an antibounce filter to correctly read the inputs connected to limit switches, push buttons, relays, ...

  • 32-bit pulse counter associated with each entry whose values are maintained during power failure. It can count pulses up to a frequency of 1 kHz. The counter is stored in memory, non-volatile, even during power failure.

C8SD 
8 digital output compact module

This module has 8 digital outputs, implemented as 1-contact relays. The features of this module are:

  • 8 1-contact realy outputs capable of switching up to 5A at 250 VAC. The relays are optocoupled to the electronics and have a varistor that protects their contacts.

  • The relays are arranged similarly to the previous module inputs, namely, there are two relays that have two terminals each, and the rest are grouped two by two so that each has a terminal and then one in common.

  • The unit has a nonvolatile memory that allows pre-programming of the following parameters:

    • Values to be taken by the relays when starting the unit.

    • Values to be taken by the relays when the unit does not detect the presence of the control CPU.

C8EA 
8 analog inputs compact module

This module includes 8 12-bit analog inputs that can be configured to measure both voltage and current. The defining characteristics are:

  • 8 analog inputs individually configurable as voltage, from 0V to 2.5V or 0V to 10V, or as current from 0 to 20 mA. Externally ranges can be extended. The configuration of the terminals is similar to the two previous units.

  • The 12-bit resolution can be expanded by an oversampling internal algorithm with a noise removal filter.

  • The front LEDs can be configured to activate when the input is inside or outside a predefined range.

C8SA 
8 analog outputs compact module

This module of a compact family has 8 8-bit analog outputs with voltage range between 0V and 10V.

The characteristics of these outputs are:

  • 8 analog outputs of 0 to 10 V configurable as 0V to 11V (designed for installations where there is voltage drop in cables and want to continue to have a range of 0V to 10V). The resolution of each output is 40mV.

  • These outputs are grouped in the same way than the three previous modules. Each output has a transistor that is able to supply a current up to 100mA and are completely short-circuited.

  • The unit includes a nonvolatile memory in which we can pre-program the following parameters:

    • Values to be taken by the analog outputs when starting the module.

    • Values to be taken by the analog outputs when the computer does not detect the presence of the control CPU.

    • The front LEDs can be configured to activate when the output is within or outside a predefined range.

C24EDL 
24 digital input compact module

The module includes 24 voltage free inpus that can be used to read the status of buttons or switches. Each of these entries can be configured as direct or latch.

There is also the possibility of detecting a double click and know the pulse duration with a resolution of tenths of a second.

C24SDL 
24 LED outputs compact module

It's a compact module that has 24 open collector outputs to drive LEDs. The LEDs can be on or off or flashing with a mask of 8 bits. The boards can be synchronized with each other in order not to give the appearance of a "Christmas tree" installation.

Each output has a current limiting resistor, although in most cases it will be necessary to externally mount a serial resistor in parallel with the LEDs .

The maximum current of each of the outputs is 100 mA, although the combination cannnot exceed 1.5 A

CHAR4 
A4 Character display

These modules were designed initially to be used to provide ground signals to pilots during docking orders.

This module has a size of 190x270 mm and forms each point with a rosette of 7 5-mm LEDs. The best results are obtained with oval LEDs, which we have standardized in yellow-amber and red.

These characters are legible at a distance of over 100 meters, and when high brightness LEDs are mounted (1470 cd) they can be read without problems even when the sunlight impacts directly on them.

CHAR5 
A5 Character display

This module is a reduced version of CHAR4, with a size of 128x184 mm, forming the points with a rosette of 4 4-mm LEDs. The best results are obtained with oval LEDs that we have standardized in yellow, red and green.

The brightness and sharpness are perceived more in the red and green.

We also have electric blue LEDs, but it is not a color easily seen.

CD4 
4 character display

Display of 4 characters formed by 15 segments of high brightness for mounting in a front panel or chart. It can display almost all character of the alphabet and all the numbers.

It can display information steadily, with flashing ... It is possible to synchronize the flashing of multiple boards.

Feeds to 24 VDC.

CD6 
6 character display

Display of 6 characters formed by 15 segments of high brightness for mounting in a front panel or chart. It can display almost all character of the alphabet and all thenumbers.

It can display information steadily, with flashing ... It is possible to synchronize the flashing of multiple boards.

Feeds to 24 VDC.

CD8 
8 character display

Display of 8 characters formed by 15 segments of high brightness for mounting in a front panel or chart. It can display almost all character of the alphabet and all the numbers.

It can display information steadily, with flashing ... It is possible to synchronize the flashing of multiple boardss.

Feeds to 24 VDC

T1 
T1 terminal

It's an improved version of our oldest terminal, it allows to control virtually any display equipped with an HITACHI controller.

To the terminal you can add a 4x4 keys keyboard or a 4x8 keys one. In the latter case the keyboard will have to have a simple demultiplexer.

This small circuit is supplied with a 2x20 character LCD display with backlight, forming a single block with the circuit. Although our board has the same size as the display it can also be used to power other sized displays, however in this case will require a cable interconnecting the two.

The unit we can supply with or without display. The display can be LCD or phosphorescent (the green that usually incorporate the cash registers in supermarkets).

Both the LCD display and the phosphorescent one are easily seen, but the second has the advantage that the viewing angle is somewhat larger and the disadvantage that when the outside light is very bright (sunny day outside) it's hard to see.

Within the unit there's an embedded software that implements a command interpreter which allows the following functions:

  • Send characters to the display.

  • A graphic character UDC (User Defined Characters). These are formed with an array of 5 x 7 points.

  • Position the cursor and clear the display.
  • Activate / disactivate the buzzer.

  • Activate sound mask in buzzer.

  • Read a key from the matrix keyboard.

    The card is supplied with any voltage between 10 and 35VDC, because it incorporates therein a DC-DC converter is responsable for providing the proper voltage to each of the components.

T2 
T2 terminal

It's a new terminal ready to be installed on a wall. It can be used in home automation installations for user interface. This terminal is provided inside a 120x70x20 mm. box

The standard equipment includes:

  • ABS plastic for wall mounting.

  • Polycarbonate front keyboard with 4 keys. For large orders these keyboards can be customized.

  • Backlit alphanumeric LCD display with 2x16 characters.
  • Two status LEDs controllable from software.

  • Piezoelectric buzzer.

    Optionally it can include a digital temperature sensor with resolution of 1 º C and a relative humidity sensor temperature with 1% resolution.

    Power supply is 24VDC, but accepts a range from 10V to 35V.

    Unlike the other terminals this one has an 8-bit microcontroller AT89S8253 type which can be reprogrammed so that it can be used as control CPU of the installation. That is, this terminal can reconvert to a microcontroller .

TERM1 
TERM1 Thermometer

This unit has a DS1624 digital temperature sensor. Thanks to that it is possible to measure an ambient temperature between -15 º C and 70 º C with a resolution of 1 / 32 ° C. This makes it valid for temperature measurement in chambers as well as in rooms.

The thermometer is supplied in a simple plastic box that can be easily mounted on a wall.

Inside it has an status indicator LED (CPU and communications) that can be disabled via a JUMPER so that the heat generated does not distort the measure.

CCOM 
Remote serial port

This module has an RS232C serial port. In some installations, in addition to governing certain facilities input / output it can occur of having to communicate with a computer that has a RS232C communication protocol (eg heat pump, weather station, ...). Here the problem can not be solved with a simple RS232c <----> RS485 adapter as the element to control knows nothing about the RS485 protocol used by the rest of the cards.

There are several solutions to this problem, make a point to point connection between the RS232c unit and the control unit, with the drawback that if there are 12 units it will be necessary for the control unit to have 12 lines of communication.

The solution we propose is to use an intelligent controller RS232 that can be controlled via RS485 bus without the element to control noticing it. The features of this unit are:

  • Speed of transmission / reception of data RS232c independently configurable to the RS485 bus speed. It allows standard speed rates from 300 baud to 115200 baud.

  • Full duplex communication using internal buffers.
  • The front LEDs show the status of communications and data flows.

SEM1 
SEM1 Semaphore

In certain installations it's necessary to get a warning or an alert at the same time it happens. Sometimes there is no chart or monitor in the appropiate place. So we've created this simple module that has 4 very high luminosity LEDs, a 90dB piezoelectric buzzer and a press button.

It can be mounted anywhere, for example in a guard's booth, so that he could be alerted when there is a problem, for example the failure of a pressure group.

In normal operation time the semaphore performs an almost imperceptible blue flash every 10 seconds to indicate that everything is working properly (installation and communications connected to it).

When an alarm occurs, depending on the danger level it can flash a green, amber or red LED, while an audible alarm is activated. The audible alarm may be disconnected by a touch, at which time the flashing LEDs go from falshing to be fixed.

This is to ensure that someone has learned that the alarm was generated. When alarms disappear the unit returns to its initial state.

The unit is highly configurable, so other configurations are possible.

When the unit is idle, you can press the button for 15 seconds to check that the LEDs and buzzer function properly.

The unit is fed directly to 220VAC and it's inside a black plastic box of 90x145x30 mm in size, which can be mounted on a wall.