Handbuch User Manual logico-hs-io
Contents
1. logico hs io ana logico hs io bus tci fe Handbuch User Manual logico hs io 6 Version 1 1 C Artikel Nr Part No 10495 if lci Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 2 von 20 List of Content 1 Logico hs io System 1 1 Boards System interfaces 1 2 logico io bus General 1 3 Hardware 1 4 Software 2 Digital boards 2 1 logico hs io dig General 2 2 Hardware 2 3 Software 3 Analog boards 3 1 logico hs io ana General 3 2 Hardware 3 3 Software 4 Software for all boards lci O OOA O 14 15 18 19 Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 3 von 20 lci 1 logico hs io System logico hs io system is a modular DIN rail mounted interface for I O signals over RS 422 Fig 1 In addition to the serial RS 422 a the system can be accessed via Ethernet b and USB c The Ethernet link uses the TCP IP protocol The system is composed of required combination of analog and digital IO boards and may contain one Basic Module for TCP IP or USB Controller interface D lt 2 Fihemer gt gt FANS Mj sanre 5 AO gt Fig 1 logico hs io system Controller Controller is a software concept defined by a protocol described in a document IO Board System Chain Protocol pdf The Controller2. double thrValue The functions sets the threshold values for all inputs of the the board boardld An event will be send if abs value change gt threshold The boards must of of type Ai4Ao2or Ai4Ao1 The thrValue must be defined as a double array The array index corresponds to the input number for instance thrValue 0 defines threshold value for Ai0 ioBoardResult GetEventMask unsigned char boardld bool mask The function reads the event mask for the board boardld The mask is read as a boolean array The array index corresponds to the input number for instance mask 0 defines AiO Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 19 von 20 lci There is a broadcast function ioBoardResult GetEvents unsigned char amp board int amp arrSize AiEvent analnput DiEvent digInput This function reads events defined by event masks from all boards The events are de livered as arrays of analog values analnput for boards with analog inputs and arrays of boolean values digInput boards for boards with digital inputs One GetEvents query may produce several answers see Events for detailed description The software uses a few enumerations Ludwig Rinn Stra e 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 20 von 20 lci All functions return a value of the enumeration type enum ioB
3. 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 21 von 20 lci Writing application software General The application software which accesses the boards performs a continuous query of input signals and sets output signals if required A creation of a software for ioBoards is based on a DLL which provides all functions described in this document The communication with boards in these functions is not interruptable that means they may be called simulta neously in parallel for instance in different threads and their never collide due to internal synchronization mechanism that are built in transparent for a programmer Several versions of a DDL are available for C and C programming languages and for Ethernet interface and direct RS 422 covers also USB interface The description in this document applies to the C version The C version may differ in some details from the C version By programming use the appropriate version DLL documentation Events loBoard protocol defines a concept of an Event as an input change To become an event the input has to be configured as an event source using the function SetEventMask In ad dition the threshold value for analog inputs Ai4A02 should be defined using the function SetEventThreshold The function GetEvents is then used to collect events from all boards in the system The answer to the GetEvents function contains events from a
4. dig board is an i o board in the IO Board system It communicates with the Controller possibly via the Basic board using the RS 422 bus lt can be used as a stand alone board connected directly to the Controller via an RS 422 interface The board is supplied in a DIN Rail enclosure e An input detects a voltage level nomi nal value 24V e An output generates a signal that may be either low or high value e The number of boards connected to the system bus is limited to 200 addressing Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 8 von 20 ici 2 2 Hardware Power supply 3 3V normally supplied by the Basic board via the RS 422 bus 20mA Number of inputs 4 Input features e Inputs are isolated from the system and from each other 1000V e Input states are signaled by LEDs e An input voltage below 9V or negative is signaled as low LED switched off e An input voltage above 9 V depends on load it may light not until is signaled as high LED green e A reverse input voltage is allowed LED orange e Max input voltage 31V Number of outputs 2 Output features e Outputs are isolated from the system and from each other 1000V e Output states are signaled by LEDs e An output below 9V is signaled as low LED switched off e An output voltage above 9 V depends on load it may light not until 15V is signaled as high LED green
5. e An overload of output current is signaled by a red LED e Outputs can be of sink or source type Enclosure size WHD 53x90x58 mm Label logico hs io dig Connectors e Digital inputs Din DGNDn n 0 3 and 2 LEDs are assigned to each input e Digital outputs VCn internal power supply Cn sink output En source output and GNDn where n 0 1 and 2 LEDs are assigned to each output e RS 422 bus PHOENIX CONTACT COMBICON Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 9 von 20 fej Be en ie E gt PS DiO vCi 1 Cp Q DGNDO Ci x J amp Die o El so QE penn GND1 St na do Di2 VOO Roio D 0 DGND2 cO rn renna i NOW ee a5 Biel Di3 Bun de oe DGNDS 3NDO Bun Fig 4 logico hs io dig Using inputs The Input voltage is applied between terminals DGNDn and Din ae Din DGNDn Fig 5 using digital outputs Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 10 von 20 GNDn En lci Using outputs Source output using internal power supply To get it working the terminal Cn has to be connected with the terminal VCn internal pow er supply If switched on the Output generates high voltage Fig 6 Using digital outputs as source with internal power
6. may be located at any place in many cases it will be a PC The Controller may communicate with the IO Board System in one of three ways TCP IP USB or RS 422 e The native RS 422 communication does not require any hardware Basic interface boards e The TCP IP communication requires thelogico hs io bus interface board e The USB communication requires a converter USB RS 422 Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 www tci de Seite 4 von 20 lei 1 1 Boards System interfaces There are two Basic boards for TCP IP and USB system interface e The logico hs io bus which is a TCP IP to RS 422 interface e The board BasUSB which is a USB to RS 422 interface in design 1 2 logico io bus General E nee The logico hs io bus board is the interface between a Controller and input output I O boards in the IO Board system The board can be connected with the Control ler via Ethernet TCP IP Thelogico hs io CE ID bus board connects to other I O boards via RS 422 bus Thelogico hs io bus board organizes the communication between Controller and I O boards It passes the TCP IP mes sages coming from Controller to the RS 422 bus where they are catched by I O boards It passes the RS 422 messages coming from the I O boards to the TCP IP channels going to Controller The board is supplied in a DIN Rail enclo sure Only one logico hs io bus board can be
7. status of the board boardld The status contains information defined by the structure RcvStatus In addition the status is returned as a string ready for display ioBoardResult GetHardware unsigned char boardld string amp st My Hardware amp hardware The function reads some hardware features of the board boardld The hardware features contain information defined by the structure MyHardware In addition the hardware fetures are returned as a string ready for display This information is normally not interesting for a typical user interface ioBoardResult GetBoardVersion unsigned char boardld string amp st The function reads the version of the board boardld in a form of a string For instance for the board Ai4Ao2 it may be ioBoardResult GetInputs unsigned char boardld double anaVal bool digVal The function reads input values for the board boardld The result is available either as an array of double values anaVal for a board with analog inputs or as an array of boolean values digVal for a board with digital inputs ioBoardResult SetEventMask unsigned char boardld ioBoardType boardType bool mask The functions sets the events mask for the board boardld and defined type boardType The mask must be defined as a boolean array true value for setting the event false other wise The array index corresponds to the input number for instance mask 0 defines AiO IoBoardResult SetEventThreshold unsigned char boardld
8. with the BasEth board bool Connect const string ip This function connects the program to the boards using two tcp ip channels Basic and Control Both channels use the same IP address but different ports Ports has the values 58001 Basic and 58003 Control and cannot be changed e The Basic channel is for communication with the Ethernet interface Basic board e The Control channel is for communication with I O interfaces Control boards e The parameter ip is a string that must be equal to the IP address of the board The default IP address of the board is 169 254 19 63 The IP address can be changed using the function SetlPAddress If the parameter ip is different than the actual IP address of the board the connection will fail and there is no way to get the address from the hardware A button on the board allows setting of the default IP address The function returns true if the connection has been successful to both channels otherwise false void Disconnect Disconnects the program from the boards both Basic and Control channels are discon nected bool GetMACAddress string amp rcv The function reads the MAC address of the Basic interface board Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 6 von 20 lci The function returns true if the MAC address has been read otherwise false bool GetVersion string amp rcv The function reads t
9. 1 Connectors Analog inputs to each input are assigned two screw terminals Ain and Ain where n 0 3 In addition there is a common screw AiCOM This should be wired to a sui table local analog ground or common potential and also to unused inputs Aln pins Analog outputs there are two outputs The output 0 one has two screw terminals Ao0 and AGND The output 1 has two screw terminals Ao1 and 24V 1 RS 422 bus PHOENIX CONTACT COMBICON Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 15 von 20 IE A O 41 LE E gt aio Aoit OE A II 2 AIO OF AICM OF A O Ai2 OE AI3 A00 EMI ai3 AGND gt Pl Fig 13 logico hs io ana Using inputs The source of the Input current is applied between terminals DGNDn and Din In addition a separate connection of the Common potential to AiCM is required As the inputs are of differential type care must be taken while connecting a Current source If the current source is connected locally to ground then a separate wire has to connect the source local ground with the Common potential AiCM If the current source is floating the negative input terminal Ain must be connected with the Common potential AiCM see Fig 17 Te
10. connected to the RS 422 bus logico hs io bus 1 3 Hardware Ethernet ISO 8802 3 100BASE T or 10BASE T RS 422 bus 115200 baud Power supply 24V Enclosure size WHD 53x90x58 mm Label logico hs io bus 01 Connectors e Power supply 24V two screw terminals 24V and OV e Ethernet 1 x RJ45 e RS 422 bus PHOENIX CONTACT COMBICON Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 5 von 20 lci 1 4 Software The communication protocol is defined for message exchange between a Controller and one or more I O boards The BasEth board passes only messages between the Controller and the I O boards it does not process them apart from media conversion The BasEth board has 2 TCP IP ports e 58001 for communication with the BasEth board e 58003 for communication with I O boards Communication speed on the TCP IP side 100 messages sec The communication via the port 58001 covers the query setting of TCP IP parameters like e IP address e MAC address e Software version e Compilation time The communication via the port 58003 realizes the message exchange between the Cont roller and the I O boards connected to the RS 422 bus It is a query channel where the IO boards respond to Controller requests In addition this port conveys events generated in the IO boards to the Controller The following functions are provided for the communication
11. eparately using the function SetEventMask and SetEventThreshold and coll ected using the broadcast function GetEvents There are two Ai4Ao2 board specific functions ioBoardResult SetAnalogCurrentOutput unsigned char boardld unsigned char outNum double anaValue which sets the current value defined by a parameter anaValue on the analog output out Num in the board boardld ioBoardResult GetAnalogCurrentOutput unsigned char boardld unsigned char outNum double amp anaValue which reads the current value anaValue on the analog output outNum in the board boardid For other functions see Software for all boards The board provides additional functionality Ao f Ai It has the PID regulator see a sepa rate document PID Regulator pdf Other boards Any combination of digital and analog inputs and outputs interfaces can be combined on a board This user specific boards are designed according to client specifications Ask for conditions and deadlines Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 18 von 20 lci 4 Software for all boards There are a several functions that can be applied to any board ioBoardType GetBoardType unsigned char boardid The function reads for the board boardld its type defined by the enumeration ioBoardType ioBoardResult GetStatus unsigned char boardld string amp st RcvStatus s amp tatus The function reads the
12. et and RS 422 interface Ludwig Rinn Stra e 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 23 von 20 tci GmbH e Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen Tel 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e vertrieb tci de
13. he version of the Basic interface board The string representing the version is something like B RS422_TCP SW 0 02E bool SetiPAddress string snd The function sets a new IP Address The new address becomes valid after restart of the board See also comments about the function Connecti The function returns true if the IP address has been set otherwise false void EnableLog bool enable The log file logs all messages passed between a program and boards Note that the C version is different string EnableLog bool enable for C If the parameter enable is true the function creates a log file with the name logRandom Numer txt where the RandomNumber is a value between 0 and 1000 otherwise it closes the log file if it exists This arrangement allows creation of several log files in the same directory if many application programs are running simultaneously The log file logs all messages passed between a program and boards The log file returns the file name if the file operation has been successful empty string otherwise Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 7 von 20 ci 2 Digital boards Digital boards handle 2 state signals that are named as low high or false true They are represented as voltage levels which nominal values are 0 and 24V There are digital inputs and digital outputs 2 1 logico hs io dig General The logico hs io
14. igital output Do0 working as a source output with internal 24V can be tested using an digital input Di3 Fig 11 Testing a digital input using sink digital output Another example shows the digital output Do1 working as a sink with internal 24V connected with digital input DIO 2 3 Software The digital inputs can be polled or can be set up for events They are polled using the command GetInput whose response contains all digital inputs They are set for events using the command SetEventMask and collected using the broadcast command GetE vents The 0 logic level corresponds to voltage above 9V and the 1 level to a low level below 9V measured at the input connector An erroneous connection on the input connector is signaled as a 0 level and signaled by the LED as red The digital outputs are set using the function ioBoardResult SetDigitalOutput unsigned char boardld bool outMask bool outValue The function sets output values low high in the board specified by the parameter boar did The output values are specified by two parameters outMask which defines which output to set outValue which defines the value This is the only logico hs io dig board specific function For other functions see Software for all boards Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 13 von 20 lci 3 Analog boards Analog boards handle a
15. ll boards as separate messages frames The function processes an event message from one board If the processed event message has been the last one the function returns the value OK otherwise the value Pending It means that the function has to be called in a loop where the function is called several times until all event messages are received Polling and Events Data acquisition requires continuous reading of inputs Having available only polling mechanism the polling frequency is determined by inputs which have to be read most frequently This requirement means that polling must run in general too fast consuming most of the CPU time A concept of Events allows optimization of queries by using several threads with different polling loops The simplest system may contain A thread with a fast polling loop calling Get Events where only inputs which must be actu alized very frequently are defined as events Several threads with a slow polling loop calling GetInputs for each board separately Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 22 von 20 lci Example of a console application The Manual is accompanied by a demo program ioBoardCppTest which is a console application demonstrating the use of all functions available in the DLL The program is written using the C DLL Alternatively the C DLL is provided Each DLL is provides in two variants for Ethern
16. nalog signals that are currents Inputs measure current in the range 0 20mA and outputs generate current in the range 4 20mA 3 1 logico hs io ana General The logico hs io ana board is an analog input output board in the IO Board system It communicates with the Controller possibly via the Basic21 board using the RS 422 bus It can be used as a stand alone board connected directly to the Controller via an CE RS 422 interface The board is supplied in a i DIN Rail enclosure Both the analog inputs and the analog output are of current type The number of boards connected to the sys tem bus is limited to 200 addressing Ludwig Rinn Stra e 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 14 von 20 lci 3 2 Hardware Power supply 3 3V normally supplied by the Basic board via the RS 422 bus 20mA 24V for analog output Analog inputs Number of inputs 4 Range 0 to 20 MA Resolution 24 bits up to 23 bits noise free Accuracy 0 1 without calibration and correction 0 01 with calibration and correction No missing code 24 bits Input resistance 250 ohm Max input current 20 mA Analog output Number of outputs 2 Range 4 to 20 mA Resolution 12 bits Accuracy LSB Guaranteed Monotonicity Max load resistance 600 ohm The output is isolated from the inputs 1000V Enclosure size WHD 53x90x58 mm Label logico hs ioana 0
17. oardResult NotOK request failed OK request succeeded Pending still data to receive ValueTooLarge the required value is too large it has been set to a default max value 20mA ValueTooSmall the required value is too small it has been set to a default min value 4mA BoardNumberTooLarge the board number is too large BoardTypeWrong unknow board type InputNumberTooLarge the input number is too large OutputNumberTooLarge the output number is too large UnknownState unknown Controller state The board type is defined by an enumeration public enum ioBoardType Unknown unknown type Ai4A01 board response Al4 AO1 V01 Ai4Ao2 board response Al4 AO2 V01 Di6 board response DI6 V01 Di4Do2 board response DI4DI2 V01 The board status is defined by an enumeration public struct RcvStatus unsigned char flags tem unsigned short over_flow overflow counter unsigned short chk_err check sum error counter unsigned short start_err start byte error counter unsigned short rec_frames frame received counter unsigned short chk_sum last check sum value The hardware features are defined by a structure public struct MyHardware unsigned char hw_reserved double hw_Temp temperature in MSP controller double hw_Vcc board power supply nominal value 3 3V double hw_Temp30 double hw_Temp85 unsigned short hw_Tick 50 Hz pulses Ludwig Rinn StraBe
18. sting analog inputs using analog output Ao0 Input cumenti sa Al Fig 14 Using analog current input Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 16 von 20 lci Using outputs e The output O This Output generates current 4 20mA using the internal 24V power supply The load is connected between the output terminals Ao0 and AGND Quiput current E o Aol AGND Fig 15 Using analog current outputO The output 1 To get it working an external 24V power supply has to be applied to the terminal 24V 1 The load is then connected between the terminal Ao1 and the minus of the 24V power supply The Output generates current 4 20MA Output current Aol Vent Fig 16 Using analog current outputi Testing inputs and outputs Both outputs can be connected with inputs which gives simple circuit to test them Testing output AoO Fig 17 Testing analog inputs using analog outputO Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 17 von 20 Quiputfzurment PEGS Ai0 AIO Fig 18 Testing analog inputs using analog output1 3 3 Software The analog inputs can be polled or can be set up for events They are polled using the function GetInput whose response contains all analog inputs They are set for events each input s
19. supply Source output using external power supply To get it working the external 24V has to be applied between terminals GNDn and Cn The Output generates high voltage if switched on Qulpul pt EA GH Dn En Cn Vtn Fig 7 Using digital outputs as source with external power supply Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 www tci de Seite 11 von 20 lci Sink output using internal power supply To get it working the terminal GDNn has to be connected with En The output is then bet ween terminals Cn and VCn internal power supply If switched on the Output generates high voltage Cn is on GNDn Dp d LI GNOn En Gn Vtn Fig 8 Using digital outputs as sink with internal power supply Sink output using external power supply To get it working the minus of an external power supply has to be applied to the ter minal En The output is then between the plus of the external power supply and the terminal Cn If switched on the Output generates high voltage Cn is on GND 400 gt O GN Dn en Gn VOn Fig 9 Using digital outputs as sink with external power supply Ludwig Rinn StraBe 10 14 e D 35452 Heuchelheim GieBen e Phone 49 6 41 9 62 84 0 e Fax 49 6 41 9 62 84 28 e www tci de Seite 12 von 20 lci Testing input and outputs The digital inputs and outputs may be connected with each other For instance the d
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