abarbman with connection
Contents
1. address is 255 The default range of PLC addresses is from 0 see section 4 18 to 255 Page 11 C MSOffice Winword Calta plc09 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 4 18 LOWEST VALID PLC NO The unit can be configured to wait for replies only from a selected range of PLC addresses in Half Duplex Mode This option specifies the lowest PLC address for which the Arbitrator can expect a response The default lowest valid PLC address is 0 The default range of PLC addresses is from 0 to 255 see section 4 17 Page 12 C MSOffice Winword Calta plcO9 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 5 0 Hardware The Allen Bradley Interface Unit contains a HC68B09 Hitachi microprocessor 8192 bytes of battery backed up RAM 65536 bytes of EPROM Erasable programmable read only memory a status LED and two 88C681 DUART Dual universal asynchronous receiver transmitter used to communicate with the Hosts and PLC Internal TTL to RS232C signal conditioning is provided by a RS232 and a RS237 interface ICs Any D C voltage from 9 to 15 volts can power the standard unit A calculator power supply rated at 9 volts D C and 500 m a is supplied As an option units can be supplied with 24 volts D C capability All ICs are CMOS type allowing the unit a wide variance in operating conditions The unit s current drain is 70 m a when p2. ATION is repeatedly sent out the Host 1 port If the message is sent out ten times without a response the unit will return to Normal Operation automatically Once ENTER is input the configuration dialog begins The configuration method is of the question and answer type The description of the configurable parameter and it s current value followed by a is output If the value is only to be viewed pressing carriage return or ENTER will leave the value unaltered and display the next parameter or pressing CONTROL B will display the previous parameter If the value is to be altered the new value is typed followed by ENTER Typing the BACKSPACE or DELETE keys can erase Erroneous input After configuration is complete or to abort the dialog at any time the ESCAPE key should be pressed The message RETURNING TO NORMAL OPERATION will be output and the unit will begin operation with the new parameters If CONTROL R rather than ENTER is pressed the message RESTORE DEFAULT CONFIGURATION Y N is asked If Y followed by ENTER is entered the unit will be made to reset all its parameters to default values Pag e7 C MSOffice Winword Calta picO9 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 4 0 COMMUNICATION FULL DUPLEX 0 HALF DUPLEX 1 This parameter selects the serial communication port protocol of the PLC If Full Duplex is selected DLE STX fr
3. User s Manual PLCO9 Arbitrator Unit Allen Bradley PLC Interface Calta Computer Systems Limited Firmware Revision 1 3 Nov 07 1998 A registered Trade Mark of Rockwell International PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 INDEX 1 0 Introduction 3 1 1 Features 3 2 0 Installation 4 2 1 General 4 2 2 Port Connector Pin Assignment 5 2 2 1 Computer Host 1 5 2 2 2 Computer Host 2 5 2 2 4 Allen Bradley PLC 5 2 2 3 Computer Host 3 5 2 2 5 Power 5 3 0 Mode of Operation 6 4 0 Configuration Dialog 7 4 0 COMMUNICATION FULL DUPLEX 0 HALF DUPLEX 1 8 4 1 ERROR DETECT CRC 0 BCC 1 8 4 2 HOST 1 RATE 8 4 3 HOST 2 RATE 8 4 4 HOST 3 RATE 8 4 5 PLC RATE 9 4 6 PLC FORMAT 8 DATA 9 4 7 HOST 1 FORMAT 8 DATA 9 4 8 HOST 2 FORMAT 8 DATA 9 4 9 HOST 3 FORMAT 8 DATA 9 4 10 PLC PORT SAFETY T O 10 4 11 HOST 1 CONFIGURATION RATE 10 4 12 LED O P 10 4 13 HOST 1 RTS CONTROL OFF 0 ON 1 10 4 14 RTS TO HOST 1 TX DELAY T O 11 4 15 PLC RTS CONTROL OFF 0 ON 1 11 4 16 RTS TO PLC TX DELAY T O 11 4 17 HIGHEST VALID PLC NO 11 4 18 LOWEST VALID PLC NO 12 5 0 Hardware 13 6 0 Radio Frequency Information 14 Pag e2 C MSOffice Winword Calta picO9 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 1 0 Introduction The Allen Bradley Interface Unit is equipped with four serial asynchronous ports It is designed to connect between the RS 232 serial por
4. When the configuration pushbutton is pressed this parameter selects the baud rate at which the unit will communicate Values allowed are 110 300 600 1200 2400 4800 9600 and 19200 baud The current default rate is 9600 baud 4 12 LED O P As a diagnostic aid the front panel LED can be used for indicating when characters are being sent out one of the four ports If characters are being sent the LED will blink 10 times a second It will continue to blink up to 1 second after a character is sent Specifying NONE can disable this feature The default condition is 0 PLC port output monitoring 4 13 HOST 1 RTS CONTROL OFF 0 ON 1 This option allows RTS to be set high modem carrier on during output from the Arbitrator to Host 1 Option 4 14 sets the time from RTS going high until the first character of a PLC response is sent out the Host 1 port This time can be used for 202 modem carrier stabilization before transmission occurs If control is OFF RTS is always asserted The default option is 0 OFF Page 10 C MSOffice Winword Calta picO9 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 4 14 RTS TO HOST 1 TX DELAY T O This option is only available if option 4 13 is selected ON This timeout specifies the time to begin sending characters to Host 1 after RTS is set high RTS is set high when the first character of a response from the PLC is received and is not s
5. Winword Calta pIc09 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 Calta Computer Systems Limited PLCOS AABITRATOA CABLE INTERCONNECT Document Number m igs o z 5 H E lt T 0 H W Z fo oO TO POWER SUPPLY Iov OOCr row WN Aom aJo docr Irov aome ajoon lt 4IMHA E lt OT Page 16 CAMSOffice Winword Calta pico09 abarbman with connection doc
6. ector Pin 2 RX data input Pin 3 TX data output Pin 4 DTR output Held high through 3 K res to 5 V Pin 5 Ground 2 2 3 Allen Bradley PLC 9 pin male DB9 connector Pin 2 RX data input Pin 3 TX data output Pin 4 DTR output Held high through 3 K res to 5 V Pin 5 Ground Pin 7 RTS output 2 24 Computer Host 3 6 pin Telco RJ 12 Pin 1 Ground Pin 2 DTR output Pin 3 RX data input Pin 4 TX data output 2 25 Power female phono mini plug Tip 9to15 VDC Ring Ground Page 5 C MSOffice Winword Calta pic09 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 3 0 Mode of Operation The Allen Bradley Interface Unit monitors host messages to determine the beginning of and end of requests It assumes the start of a sequence when DLE STX characters are received in Full Duplex mode or DLE SOH or DLE ENQ characters are received in Half Duplex mode from a host It assumes the end of a sequence when DLE ACK characters are received in Full or Half Duplex mode or DLE EOT characters are received from the PLC in Half Duplex mode When a sequence from a host begins a safety timer is invoked This timer sets the overall time a host can access the PLC This default time out value is set to 10000 milliseconds 10 seconds and can be altered Because multiple hosts are accessing one PLC the PLC should be configured with Duplicate Detect disabled The unit will not accept unsolic
7. et low modem carrier off until all characters are sent out plus an additional time of 1 0 millisecond has elapsed Timeout values from 1 to 2000 milliseconds may be specified The default timeout is 1 millisecond 4 15 PLC RTS CONTROL OFF 0 ON 1 This option allows RTS to be set high modem carrier on during output from the Arbitrator to the PLC Option 4 16 sets the time from RTS going high until the first character of a PLC response is sent out the PLC port This time can be used for 202 modem carrier stabilization before transmission occurs If control is OFF RTS is always asserted The default option is 0 OFF 4 16 RTS TO PLC TX DELAY T O This option is only available if option 4 15 is selected ON This timeout specifies the time to begin sending characters to the PLC after RTS is set high RTS is set high when the first character of a message for the PLC is received and is not set low modem carrier off until all characters are sent out plus an additional time of 1 0 millisecond has elapsed Timeout values from 1 to 2000 milliseconds may be specified The default timeout is 1 millisecond 4 17 HIGHEST VALID PLC NO The unit can be configured to wait for replies only from a selected range of PLC addresses in Half Duplex Mode This option specifies the largest PLC address for which the Arbitrator can expect a response The message is sent out the PLC port but the unit does not wait for a reply The highest valid PLC
8. ited messages from the PLC Page 6 C MSOffice Winword Calta pic09 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 4 0 Configuration Parameters such as time outs protocol type and baud rates may be altered in the unit via the Host 1 port and saved in battery backed up Random Access Memory RAM Any terminal or PC equipped with a terminal emulator package may be used to respond to the configuration dialog The default configuration baud rate is 9600 The asynchronous format of the characters is 1 start 8 data and 1 stop bit The configuration software handles X ON X OFF flow control A stand alone DOS software program TERM EXE supplied with the unit on 3 12 inch floppy disk will allow configuration from a PC with a serial communication port In addition the file PLCO9 HT is supplied for use in configuring HyperTerminal HyperTerminal is included without charge with Windows 95 98 NT See TERM TXT and PLCO9 TXT on the supplied Terminal Emulator floppy disk for operating instructions with TERM EXE and HyperTerminal respectively Pressing the pushbutton for approximately 1 second on the back of the unit until the Front Panel Led is extinguished will put the unit into configuration mode At this time the message PLCO9 ALLEN BRADLEY ARBITRATOR 98 NOV 7 REV 1 3 CONFIGURATION MODE PRESS ENTER OR C TO PROCEED CONTROL R TO RESET TO UNIT DEFAULT PARAMETERS OR ESCAPE TO RETURN TO NORMAL OPER
9. itor using the LED Host 1 port and the PLC port can control RTS for a 202 type modem or radio in order to turn carrier on and off C AMSOffice Winword Calta plcO9 abarbman with PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 2 0 Installation 2 1 General The rear of the Allen Bradley Interface Unit contains four female connectors a male connector and a pushbutton switch The first connector a mini phono jack on the left is for power 9 to 15 volts D C Next is the pushbutton used for initiating the configuration mode This is followed by a telco RJ12 connector for Host 3 The third connector male 9 pin is for connection to the Allen Bradley PLC The remaining two female 9 pin connectors are for Hosts 2 and 1 respectively The Host 1 connection is also used for configuration All ports can be configured for communication type baud rate format and error detect type The current default for all four ports is Full Duplex communication 1200 baud no parity and CRC error detect Page 4 C MSOffice Winword Calta pic09 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 2 2 Port Connector Pin Assignment 2 2 1 Computer Host 1 Configurator terminal 9 pin female DB9 connector Pin 2 RX data input Pin 3 TX data output Pin 4 DTR output Held high through 3 K res to 5 V Pin5 Ground Pin 7 RTS output 2 2 2 Computer Host 2 9 pin female DB9 conn
10. o parity and 1 stop bit The current default is O 1 start 8 data no parity and 1 stop bit 4 7 HOST 1 FORMAT 8 DATA Host 1 can communicate to the unit with a format of 1 start 8 data even or no parity and 1 stop bit The current default is O 1 start 8 data no parity and 1 stop bit 4 8 HOST 2 FORMAT 8 DATA Host 2 can communicate to the unit with a format of 1 start 8 data even or no parity and 1 stop bit The current default is O 1 start 8 data no parity and 1 stop bit 4 9 HOST 3 FORMAT 8 DATA Host 3 can communicate to the unit with a format of 1 start 8 data even or no parity and 1 stop bit The current default is O 1 start 8 data no parity and 1 stop bit Page 9 C MSOffice Winword Calta picO9 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 4 10 PLC PORT SAFETY T O A safety timer is invoked to abort a request in case a response is not received from the PLC or excessive DLE NAKs are sent and a Host continues to hold the connection to the PLC As a safety feature when 78 of the T O is left a DLE ACK is sent to the PLC The time out value is in milliseconds The current default time out is 10000 milliseconds 4 11 HOST 1 CONFIGURATION RATE This parameter is used to set the default baud rate from Host 1 to a terminal or PC for configuring the unit This is a completely separate parameter from the HOST 1 RATE in section 4 5
11. om a host starts a sequence and DLE ACK from a host ends a sequence If Half Duplex is selected DLE SOH or DLE ENQ from a host starts a sequence and DLE ACK from a host or DLE EOT from the PLC ends a sequence The current default is Full Duplex 4 1 ERROR DETECT CRC 0 BCC 1 This parameter is required to tell the unit which method of error detection is in use The current default rate is CRC 4 2 HOST 1 RATE This parameter is used to set the baud rate from Host 1 to the unit Values allowed are 110 300 600 1200 2400 4800 9600 and 19200 baud The current default rate is 1200 baud 4 3 HOST 2 RATE This parameter is used to set the baud rate from Host 2 to the unit Values allowed are 110 300 600 1200 2400 4800 9600 and 19200 baud The current default rate is 1200 baud 4 4 HOST 3 RATE This parameter is used to set the baud rate from Host 2 to the unit Values allowed are 110 300 600 1200 2400 4800 9600 and 19200 baud The current default rate is 1200 baud Page 8 C MSOffice Winword Calta pic09 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 4 5 PLC RATE This parameter is used to set the baud rate from the PLC to the unit Values allowed are 110 300 600 1200 2400 4800 9600 and 19200 baud The current default rate is 1200 baud 4 6 PLC FORMAT 8 DATA The unit can communicate to the PLC with a format of 1 start 8 data even or n
12. owered from 12 V D C Page 13 C MSOffice Winword Calta pic09 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 6 0 Radio Frequency Information PLCO9 ARBITRATOR has been tested and found to comply with the limits of a Class A computing device in accordance with the specifications in part 15 of the FCC rules which are designed to provide reasonable protection against RF interference in a commercial installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or TV reception the following measures may be attempted Reorient the antenna of the device detecting interference Relocate the device away from the PLCO9 ARBITRATOR Use different branch outlets to power the device The booklet HOW TO IDENTIFY AND RESOLVE RADIO TV INTERFERENCE PROBLEMS prepared by the FCC may also be helpful Page 14 C MSOffice Winword Calta plcO9 abarbman with connection doc PLCO9 Arbitrator Allen Bradley Interface Unit Manual Rev 1 3 98 Nov 07 For any further assistance and suggestions for future enhancements concerning the PLCO9 ARBITRATOR ALLEN BRADLEY INTERFACE please contact Calta Computer Systems Limited Suite 230 550 71st Avenue S E Calgary Alberta Canada T2H 0S6 Phone 403 252 5094 Fax 403 252 5102 E Mail ccompute calta com Web Site http www calta com Page 15 C MSOffice
13. ts of three host computers and an Allen Bradley PLC The Interface Unit s software allows access to the controller on a round robin basis If one host is currently accessing the controller and a request is received from another other host its request is queued until the initial host s interrogation and subsequent PLC response is complete The unit is equipped with battery backed up RAM which holds the configurable parameters 1 1 Features Power Up Check Message Detection Protocols Output Indication Modem RTS Page 3 connection doc Upon power up the unit checks EPROM and RAM memory for validity If a fault occurs the LED on the front of the unit will blink once every 1 5 seconds for an EPROM problem twice every 2 0 seconds for a RAM problem and three times every 2 5 seconds if the default configuration has been restored If there are no errors the LED is on steady if characters are not being output to a PLC or as configured If the LED is out and the unit is not in configuration mode the unit is faulty The unit monitors messages to determine the start and end of requests The unit can be configured to communicate with a PLC in Full or Half Duplex If the power up checks indicate that RAM and EPROM are fine the LED on the front panel goes on steady However the front LED can be configured to indicate output is Currently in progress via one of the ports A parameter is available to select which port output to mon
Download Pdf Manuals
Related Search