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2.2.21 Function serial communication COM and EXP

Communication  functions  COM  and  EXP  enable  the  programming  of  the
serial  ports  (COM1-RS485  and  EXP1-RS232)  for  reading/writing  of  data
from  connected  slave  devices  using  the  master  protocol  selected  in  the
project.  These  functions  are  active  only  when  in  the  project  a  master
communication  protocol  has  been  selected  for  the  relevant  serial  port.  A
Master  protocol  means  a  protocol  which  enables  the  PL260  to  control  the
serial  line  communication,  controlling  the  data  flow  towards  slave  devices.
The  two  functions  are  similar,  they  only  refer  to  a  different  serial  port.
Instruction  COM operates with interface RS485, allowing to connect more
devices  on  the  same  line,  while  instruction  EXP  operates  with  interface
RS232  allowing  to  connect  one  single  device  to  PL260.  Instructions  are
active  while  the  relevant  coil  is  active.  Consider  also  that,  according  to

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Содержание PL260

Страница 1: ...User manual...

Страница 2: ...2...

Страница 3: ...ry area 21 1 7 2 Memory area special marker SM 22 1 7 3 Memory area digital inputs I 44 1 7 4 Memory area digital outputs Q 44 1 7 5 Memory area support marker M 44 1 7 6 Memory area analogue inputs A...

Страница 4: ...IF contact 57 2 2 14 SBIT and RBIT functions 57 2 2 15 BIT contact 57 2 2 16 RANGE function 57 2 2 17 Contact NOT 58 2 2 18 Contact P and N 59 2 2 19 Function SEND and mode Free port 59 2 2 20 Functio...

Страница 5: ...lly isolated allowing simplified signal wiring and increased noise immunity The DIN rail mounting housing has been developed according to CE requirements for light and heavy industry Main features Ope...

Страница 6: ...ng 0 2 s on 0 2 s off only boot program is loaded on PL260 no main program and no ladder application Yellow led COM ON for 50mS during transmission of each frame on one of the available serial ports O...

Страница 7: ...r fast count inputs Digital inputs I1 I16 Inputs PNP 0 24VDC Digital outputs Q1 Q16 Static outputs 24Vdc 0 7A max Each output can produce 0 7A with a combined limit of 4 0A Analogue outputs AQ1 AQ2 Vo...

Страница 8: ...8 1 4 Size and installation 90 160 mm 43 53 5 45...

Страница 9: ...output AQ3 positive signal 0 12 5 VDC 11 AQ 4 Analogue output AQ4 positive signal 0 12 5 VDC 12 AQ COM Common negative signal for analogue outputs 21 V Common positive signal for digital inputs Conne...

Страница 10: ...I8 Digital input 37 I9 Digital input 38 I10 Digital input 39 I11 Digital input 40 I12 Digital input 41 I13 Digital input 42 I14 Digital input 43 I15 Digital input PL260 12AD input for fast counter no...

Страница 11: ...EF 34 CANH RX Signal CAN or RX RS232 EXP1 interface CAN or RS232 35 CANL TX Signal CAN or TX RS232 36 GND Ref signal for serial EXP1 N Name Description PLUG RJ45 COM1 RS485 COM2 RS232 PL260 plug 8 8 8...

Страница 12: ...nection of sensors to analogue inputs Below some examples of connection for common sensors to the analogue inputs of the PL260 1 2 PT 100 NI100 a 3 fili 0 10V 0 20mA 4 20mA 3 wires V 21 0 20mA 4 20mA...

Страница 13: ...e to connect a load cell to the PL260 it is necessary to Create the voltage max 5 Vdc to supply the cell through the analogue output AQ4 Connect the load cell signals and to the analogue inputs AI1 si...

Страница 14: ...al bidirectional encoder phase A B and Z optional which can be connected to the PL260 inputs 1 5 5 Connect PL260 to RS485 Below an example of connection for more modules PL260 to RS485 line for the co...

Страница 15: ...ocedures must be done with PL260 switched off 1 6 1 Setting dip switch to select EXP1 interface Pins 34 35 and 36 can have a double function which can be selected through dip switch S6 found under the...

Страница 16: ...the relative dip switch as indicated in the table below Input type Dip switch Notes Disabled If the analogue input is not used leave all switches off as showed in the figure 0 10V 10 bit Connect the...

Страница 17: ...res to the analogue input and the other to the AI COM inputs reference pin If 3 wires PT100 NI100 are used this setting can be selected only for AI1 and AI4 Connect the white wire to the analogue inpu...

Страница 18: ...switch see following figures signal applied to input I7 is converted to analogue the read value is deducted and assigned to AI5 the signal applied to input I8 is converted to analogue the read value i...

Страница 19: ...p switch to configure analogue input AI6 Input AI6 Dip switch Notes Disabled Analogue input AI6 is disabled and input I8 is used as digital input 0 10V 10 bit Connect positive signal to digital input...

Страница 20: ...connect more than 4 devices to the same network it is necessary to change the address offset value The address is given as follows MODULE ADDRESS ADDRESS OFFSET DIP SWITCH COMBINATION The offset addre...

Страница 21: ...t Timer area B W C Counters area B W PV Preset counters area B W EEP EEPROM area W MMC EEPROM_MEMORY area W COM1_TX COM1_TX area W COM1_RX COM1_RX area W EXP1_TX EXP1_TX area W EXP1_RX EXP1_RX area W...

Страница 22: ...is data is initialized when starting the PLC with the default values described in the table below This area contains all data related to analogue inputs trimmers counts and set values of encoders and...

Страница 23: ...be used as counting input for scanning cycle R Bit 5 Bit TEST Setting this bit as ON the reading of digital inputs is disabled Status of inputs is read on word SM37 Setting this word it is possible to...

Страница 24: ...0 This bit is ON if the retaining data of the area special marker are lost R W Bit 1 This bit is ON if the retaining data of the marker area are lost R W Bit 2 This bit is ON if the retaining data of...

Страница 25: ...f counter for bidirectional encoder 2 Setting this bit to 1 at the end of scanning cycle the counter of encoder 2 32 bit is loaded with the value of SMD26 The bit is automatically set to OFF at the en...

Страница 26: ...nged in OFF at the end of the operation R W Bit 10 Only for PL260 12AD Loading counter of bidirectional encoder 5 Setting this bit to 1 at the end of scanning cycle the counter of encoder5 32 bit is l...

Страница 27: ...ay of the week 0 6 0 Sunday 1 Monday 6 Saturday These words contain the date and time of the internal clock Writing on each of these words updates the internal clock An internal battery allows the clo...

Страница 28: ...r of encoder 1 high area SM25 1025 Loading value for counter of encoder 1 low area These words contain the value in counts which is loaded on the counter of encoder 1 when the loading bit SM2 0 is set...

Страница 29: ...16 for test procedure This word defines the status for digital inputs during test procedure SM0 5 1 Each bit of this word corresponds to the status of a digital input starting from the bit less signif...

Страница 30: ...r enabled 1 filter excluded Bit 6 Input AI3software filter exclusion R W 0 filter enabled 1 filter excluded Bit 7 Input AI4 software filter exclusion R W 0 filter enabled 1 filter excluded Bit 8 Input...

Страница 31: ...d 1 Input 0 10V resolution 10 bit 2 Input 0 10V resolution 16 bit 3 Input 0 1V 4 Input 0 20mV 5 Input 0 20mA 6 Input 4 20mA 7 Input thermocouple type K 8 Input thermocouple type S 9 Input thermocouple...

Страница 32: ...using the instruction RANGE AIx Min Max Default settings are 0 for min value and 1000 for max value R W SM58 1058 Offset calibration Analogue input AI1 SM59 1059 Offset calibration Analogue input AI2...

Страница 33: ...R W SM81 1081 Frequency of digital analogue converter default 55 Hz Defines the conversion frequency in Hz for the digital analogue converter Through this parameter it is possible to change the conver...

Страница 34: ...by bit and not all of them can be modified R W Bit 7 5 Not used keep it to 0 Bit 4 Conversion speed divisor 0 normal conversion speed 1 halved conversion speed Bit 3 Not used keep it to 1 Bit 2 VREF...

Страница 35: ...this register is valid only for analogue inputs configured in counts SM40 43 19 This register is managed by bit and not all of them can be modified R W Bit 7 3 Not used keep it to 0 Bit 2 0 Input amp...

Страница 36: ...Value selected for this word defines the min interval time resolution 0 2 ms between two consecutive transfer of control characters from the PL260 to the expansion modules to determinate the correct...

Страница 37: ...W Bit 2 This bit shows if an answer has been received after a PL260 query to the generic CAN It is automatically reset to zero at each command or request of data reading writing 0 waiting answer 1 an...

Страница 38: ...nstruction If serial is selected on slave protocol the error condition is signaled setting to 1 all bits of correspondent word whenever no correct packet with slave address same as the device is not r...

Страница 39: ...SM102 1102 Serial COM1 format SM112 1112 Serial EXP1 format SM122 1122 Serial COM2 6 format Value selected into this word defines the serial port communication data 7 R W 0 8 N 1 default 1 8 O 1 2 8 E...

Страница 40: ...default 5 ms SM124 1124 Delay new master transmission COM2 default 5 ms With master protocol this word defines min waiting between end of data receiving from slave to master and start of transmission...

Страница 41: ...port mode disabled R W Bit 0 3 These bit select communication speed for the serial port in free port mode according to this values R W 0 110 baud 1 150 baud 2 300 baud 3 600 baud 4 1200 baud 5 2400 ba...

Страница 42: ...SM129 1129 Number of characters present in the reception buffer of serial COM2 These words contains for each serial the number of valid characters present into reception buffer The use of these words...

Страница 43: ...1141 Loading value for encoder 5 counter low part Only for PL260 12AD These two words contain value in counts which is loaded on the counter of encoder 5 when loading bit SM2 10 is selected to 1 R W S...

Страница 44: ...ts of 8 words The first one is transferred to the outputs of PL260 at the end of each cycle the other ones may contain the status of further outputs to write via serial communication to an expansion m...

Страница 45: ...V 1 7 12 Memory area EEPROM EEPROM area is the non volatile memory to store all data which cannot be lost even if PLC is switched off for long periods over 6 months Data stored in this area is tested...

Страница 46: ...longer assured so it is necessary to avoid continuously writing into this memory area 1 7 14 Memory areas COMx_SEND and EXP1_SEND Memory area COMx_SEND and EXP1_SEND are used to load data which will...

Страница 47: ...ctor plug 8 Both serials support protocol modbus RTU as described below Therefore the module PL260 may be connected and may communicate with 3 master devices at the same time Modbus RTU main features...

Страница 48: ...4 months 4 value of these data is unknown at starting 5 Defined value The value assumed at starting is the value defined in the table WORD MODBUS ADDRESS DESCRIPTION READ WRITE RESET VALUE 0 Device ty...

Страница 49: ...0 19815 19800 19801 19802 19803 19804 19805 19815 Word prop integr deriv outputs PID proportional action PID1 integral action PID1 derivative action PID1 output PID1 proportional action PID2 output PI...

Страница 50: ...acts digital outputs Q1 Q16 R 0 151 N O contacts digital outputs Q17 Q32 R 0 152 N O contacts digital outputs Q33 Q48 R 0 153 N O contacts digital outputs Q49 Q64 R 0 154 N O contacts digital outputs...

Страница 51: ...OS2 R 0 250 N O contact support marker M1 M16 R 0 251 N O contact support marker M17 M32 R 0 252 N O contact support marker M33 M48 R 0 253 N O contact support marker M49 M64 R 0 254 N O contact suppo...

Страница 52: ...imer T1 N O contact timer T48 R 0 5600 5615 N O contact counter C1 N O contact counter C16 R 0 1440 1441 N O contact positioning on off POS1 N O contact positioning on off POS2 R 0 1520 1521 N O conta...

Страница 53: ...one more expansion module The N O contact is closed on when bit value is 1 active input The N C contact is open on when bit value is 0 input not active 2 2 2 Digital outputs Q PL260 is provided with 2...

Страница 54: ...vated When the coil is activated the timing bit contact T is immediately activated and the actual value T is set to zero At deactivation of coil the timer counts until elapsed time is equals to preset...

Страница 55: ...f minimum value 32 768 the next edge up of the counting down input will keep unchanged the actual value MDOWN In mode Count Down the counting bit contact C is activated when present value is equals to...

Страница 56: ...er the memory areas as vectors of a certain number of locations by means of the value assumed by another location called index it is possible to enter the value of the area n 0 n 1 n N 1 2 2 10 Assign...

Страница 57: ...ring to 0 a bit of a memory area while the coil of the function is active Number of bit changes from 0 to 15 where bit 0 is the less significant bit LSB 2 2 15 BIT contact This operation brings the va...

Страница 58: ...umeric value as 500 the output AQ1 will be 10Volt In case that entered value are not included in the interval specified by function RANGE the output is kept within minimum and maximum values For inter...

Страница 59: ...send as parameters these data will be sent on serial line During the transmission of data bit SM0 7 SM0 7 or SM0 8 according to transmission port will be set to 1 while it will be set to 0 at the end...

Страница 60: ...ax error allowed to positioning in the field Counts maximum positioning error Enter time value as tenths of second required for the axis to reach max speed Start function TunePOS and wait until contac...

Страница 61: ...s been selected for the relevant serial port A Master protocol means a protocol which enables the PL260 to control the serial line communication controlling the data flow towards slave devices The two...

Страница 62: ...by means of a writing instruction this instruction can work only on a single data each time Slave number communication address of slave device Data type word or bit Number of data or starting number...

Страница 63: ...10 R 7 W Link relay L 0 999 3000 R W 10 R 7 W Timer T 0 999 4000 R 10 Counter C 0 999 5000 R 10 Index register X 0 0 6000 R W 1 Index register Y 0 0 6001 R W 1 Index register D 0 0 6002 R W 1 Data reg...

Страница 64: ...I O MapEXP communication function allows to declare expansion devices of I O expansion connected to the port EXP1 for the automatic reading writing of input outputs and data This function is activate...

Страница 65: ...inputs 8 digital outputs At each I O device some resources on the PL260 memory areas are reserved to manage clearly the data exchange between plc and expansion modules as if the inputs outputs were i...

Страница 66: ...279 9 145 160 145 160 39 42 37 40 280 289 10 161 176 161 176 43 46 41 44 290 299 11 177 192 177 192 47 50 45 48 300 309 12 193 208 193 208 51 54 49 52 310 319 13 209 224 209 224 55 58 53 56 320 329 1...

Страница 67: ...D function ex PID function recalled every 1 sec integral time expressed in seconds Derivative time is expressed with one decimal digit more than integral time Proportional band and dead band are expre...

Страница 68: ...ction can be activated once at starting but it may also be recalled later for a quick change to control parameters Integral action of PID is initialized only starting this function and setting integra...

Страница 69: ...enter an acceleration and deceleration ramp Function GENSET operates on a series of adjoining variables in double word starting with the location which is given as parameter of the function Addres s a...

Страница 70: ...ally start to write on location VD 2 the generated setpoint Location VD will also be updated with current state of function while location VD 12will be updated with instant speed of setpoint expressed...

Страница 71: ...ed conversion The difference is that the source data is considered as unsigned word 0 65535 the code is composed by one bit set to 1 if the segment must be ON and by one bit set to if the segment must...

Страница 72: ...72 PIXSYS Via Po 16 30030 Mellaredo di Pianiga VE www pixsys net e mail sales pixsys net support pixsys net Software Rev 1 22 firmware 2300 10 077 RevJ 311012 2300 10 077...

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