User manual

ManualsBrandsTASKIT ManualsDev KitsPCB extension board gpio.Relais seriell

Features

• Modbus-Interface

• Widely used protocol for measuring and

automation

• gpio.NET Core Interface

• Uniform set of commands and registers

• Supports Modbus RTU and Modbus ASCII via

RS232/RS485

• Supports Modbus ASCII via USB

• Gateway with protocol conversion between

RS232/RS485 (RTU) and USB (ASCII)

• Configuration stored in EEPROM

• RS232/RS485

• Selectable baud rate from 1200 Baud to 1MBit

• Free configurable serial device (data width,

parity, stop bits)

• Selectable operation mode (RS232 or RS485)

• USB

• USB 2.0 CDC-Device

• Unique serial number

• Modbus-Address changeable through Modbus

command via serial line

• 1 KByte EEPROM

• Seperated Config-Section and User-Section

• Both sections can be write-protected

seperately

• 4 relays

• max. 220 V

• max. 5 A

• 4 digital inputs

• opto-decoupled inputs

• 4 frequency counters

• simultaneously counting on all digital inputs

• up to 32 kHz

• filtered 32bit impuls counter

• selectable pulse width between 32μs and 65ms

gpio.NET

Relais

Preliminary

Short Description

gpio.NET

Relay card

gpio.Relais

U-Series

gpio.Relais

R-Series

Summary of content (12 pages)

PAGE 1
Features • • • • • • • • • • Modbus-Interface • Widely used protocol for measuring and automation gpio.
PAGE 2
gpio.Relais Overview The gpio.Relais modules offer access to four relays. Additionally, they extend the gpio.NET Core interface by four digital, opto-decoupled inputs offering one puls counter as well as four frequency counters. The modules easily integrate into existing Modbus systems and can be identified and configured by a unique serial number even in a running system. Beyond that, they offer a uniform set of registers over the hole gpio.NET family.
PAGE 3
gpio.Relais with issues resulting of this, Modbus ASCII is the only available protocol used over USB.1 A gpio.NET card is detected as a virtual serial port by the host system and so does not differ from a real one from a programs point of view. USB device port is used as power source if connected to a host. As an alternative, PIN9 from either X10 or X11 can used instead.2 When using PIN9 care has to be taken to use a well-regulated 5 volts source.
PAGE 4
gpio.Relais Drawing 2: RS485 bus on USB with additional power supply Individual parts of a bus constructed as shown in drawing 2 can be supplied at arbitrary points by an isolated power supply. Mind to really seperate VBUS of these groups. The example demonstrates this by means of the first card connected to the host PC via USB and the rest of the bus being supplied by a seperate power source. Opened jumper J7 disrupts the VBUS connection on DSUB's PIN9.
PAGE 5
gpio.Relais Holding registers 0x0000 HREG_CTRL 0x1000 reserved 0x0001 HREG_PM 0x1001 HREG_PM 0x0002 HREG_BAUDSEL 0x1002 HREG_BAUDSEL 0x0003 HREG_DBITS 0x1003 HREG_DBITS 0x0004 HREG_PARITY 0x1004 HREG_PARITY 0x0005 HREG_STOP 0x1005 HREG_STOP 0x0006 HREG_SERIAL_MODE 0x1006 HREG_SERIAL_MODE 0x0007 HREG_MODBUS_MODE 0x1007 HREG_MODBUS_MODE ... reserved ...
PAGE 6
gpio.Relais CFG_WREN Enables write access to the persitent configuration section. DEFAULT Restores default factory settings. HREG_PM This register is currently unused. HREG_BAUDSEL Specifies the baud rate that is used on RS232/RS485. The register contains one of those selectors described below.
PAGE 7
gpio.Relais SERIAL_MODE Selects the mode the serial line operates on. Choose 0 for RS232 or 1 for RS485. MODBUS_MODE To switch between MODBUS RTU and ASCII modes this register is used. Changes will not affect the USB connection that always operates in MODBUS ASCII. Choose 0 for ASCII or 1 for RTU. OUT_VAL 15 14 13 12 11 10 9 8 3 2 1 0 reserved 7 6 5 4 Estate Dstate Cstate Bstate reserved Defines the state of relays B (X3), C (X4), D (X5), E (X12).
PAGE 8
gpio.Relais PULSE_WIDTH The minimal width for pulse counting is specified in μs . It describes the minimum duration of an event that occurs on one of the four inputs. Any noise that appears during this time span is supressed and not counted. Valid configurations for PULSE_WIDTH are 32 μs to 65534 μs. PULSE_CH This register selects the input on which events are counted. Setting a value other than 0 will start the impuls counter, immedeately.
PAGE 9
gpio.Relais Bit-wise inputs (Inputs) 0x0000 A1 0x0004 BSTATE 0x0001 A2 0x0005 CSTATE 0x0002 A3 0x0006 DSTATE 0x0003 A4 0x0007 ESTATE Table 5: Bit-wise inputs The bit-wise inputs are directly mapped to holding register IN_VAL. Bit-wise outputs (Coils) 0x0004 BSTATE 0x0005 CSTATE 0x0006 DSTATE 0x0007 ESTATE Table 6: Bit-wise outputs (Coils) Coils represent the bits in holding register OUT_VAL.
PAGE 10
gpio.Relais Connector description Communication: X1: Micro-USB Device DSub-9 (R-Version only) Pin X11 (female) X12 (male) 1 Future Appl. 2 TXD 3 RXD 4 RS485+ RS485+ 5 GND GND 6 RS485- RS485- 7 (RTS) 8 (CTS) 9 VBUS Future Appl.
PAGE 11
gpio.Relais Technical data Operating voltage via USB, VBUS: 4,5 Volt – 5,5 Volt Maximal current draw: ca. 200mA* *) all Relays active, all Inputs active Input voltage/current of opto-decoupled inputs: Parameter Min. Typ. Max. Unit low/passive -5 0 2 Volt 0 2.5 mA low/passive - high/active 2.
PAGE 12
gpio.Relais Compliance declaration The taskit GmbH confirms EMV conformity to the EU directive for products gpio.Relais-R and gpio.Relais-U (2004/108/EG). The taskit GmbH declares the products gpio.Relais-R and gpio.Relais-U to be manufactured with respect to EU directive 2002/95/EG (RoHS) and to be free of the listed substances: 1. Lead [Pb] and its compounds 2. Mercury (quicksilver) [Hg] and its compounds 3. Polybrominated biphenyles (PBB) 4. Polybrominated diphenyl ether (PBDE) 5.