rotork Paksan P3F Technical Manual Download Page 15

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Serial Comms Links

15 of 82

Publication S703E V1.1

Issue 06/09

SORTING OUT THE SERIAL COMMS LINKS

The Pakscan P3F CPU module has two serial ports. Each of these is configurable for RS232 or
RS485. Where redundant communications to the host system using serial comms is required, then
two RS485 connections are often used.

3.1 Setting Port 1 and 2 for RS232 or RS485

The main circuit board has DIP switches for setting the type of serial port that is presented at the port
terminal block.

Fig 10: Pakscan P3F Serial related switches

Select Port 2

Function

Select RS485

Termination

Select Port 1

Function

Summary of Contents for Paksan P3F

Page 1: ...Publication S703E V1 1 Issue 06 09 P3F PAKSCAN FIELD MOUNT MASTER STATION TECHNICAL MANUAL...

Page 2: ...MASTER STATION Future option slot CPU Module Host Comms Serial Ports 1 and 2 Current Loop option Power Supply Power Connector View with door open Current Loop Connector Alarm and ESD Terminals DIN Ra...

Page 3: ...hen to Use RS232 17 3 3 When to Use RS485 17 4 USING ETHERNET HOST COMMS 19 4 1 Setting Up the Ethernet Comms 19 5 THE INTERNAL WEB PAGES 21 5 1 Making an Internet intranet Connection 21 5 2 Connectin...

Page 4: ...its 52 5 5 15 Admin 54 5 5 16 Users 54 5 5 17 Masterstation Config 57 5 5 18 Host Port Configuration 61 5 5 19 Alarms 64 5 5 20 Time 66 5 5 21 General 67 5 5 22 Network 68 5 6 Setting Up the Master st...

Page 5: ...ingle channel system capable of supporting up to 32 actuators or other field units Most types of Rotork actuator can be connected to the Pakscan current loop provided they are fitted with the necessar...

Page 6: ...P3F Pakscan Master Station Technical Manual 6 of 82 Publication S703E V1 1 Issue 06 09 This page is intentionally blank...

Page 7: ...r wiring is connected using a 3 way plug in connector with screw terminals in the top of the master station main circuit board Serial comms ports 1 and 2 RS232 or RS485 connect to an 8 way plug in con...

Page 8: ...RS485 Connections 1 TX 2 RX Data 3 GND GND 4 Port 1 Data 5 TX 6 RX Data 7 GND GND 8 Port 2 Data With RS485 it is possible to arrange a multi drop data highway for the serial communications whilst RS2...

Page 9: ...between pins 4 and 5 should be added Note that the relay is shown in the Alarm Active or power removed position 1 6 Current Loop Connections A removable screw terminal connector is located in the bott...

Page 10: ...ation Technical Manual 10 of 82 Publication S703E V1 1 Issue 06 09 Power Connector Ethernet Ports Hard Wired ESD Serial Ports Current Loop Fuse Fig 7 View of the Pakscan P3F master station showing the...

Page 11: ...TWORK The Pakscan current loop field network must be correctly cabled and connected to the master station The values of the field loop resistance and capacitance must be known to determine the loop sp...

Page 12: ...erformance Too high a capacitance for the selected loop baud rate will result in poor communications or even communication failure Maximum Loop Speed The cable resistance and capacitance must not exce...

Page 13: ...th bar connect the screen on one side only to the bar SIGNAL EARTH BAR Port A IN Screen A B C SCR Port B OUT Port B IN A B C SCR Actuator Terminals A B C SCR EMERGENCY SHUTDOWN Screen 5 4 6 2 1 3 5 4...

Page 14: ...P3F Pakscan Master Station Technical Manual 14 of 82 Publication S703E V1 1 Issue 06 09 This page is intentionally blank...

Page 15: ...ere redundant communications to the host system using serial comms is required then two RS485 connections are often used 3 1 Setting Port 1 and 2 for RS232 or RS485 The main circuit board has DIP swit...

Page 16: ...ould be down Each of the two ports may be set independently Port Termination Resistors The two DIP switches are used to connect end of line termination resistors and biasing resistors to the RS485 net...

Page 17: ...wn RS232 Down 3 3 When to Use RS485 When there are several Pakscan P3F master stations to be connected to the PLC or the distance between the Host and the master station is more than 20 metres an RS48...

Page 18: ...n a multi drop connection is made care must be taken to ensure that the cable is not broken if a master station is disconnected The master station supplies port termination resistors for each port whi...

Page 19: ...DCS to access data and control the actuators on the field network The IP address is already set and can be changed during setting up the master station 4 1 Setting Up the Ethernet Comms Ethernet conne...

Page 20: ...f which connects to all the master stations The master is left with a Static DHCP port setting The master station can serve up to 10 simultaneous host connections With this arrangement either PLC port...

Page 21: ...ion on setting up with a PC below Start the browser and enter the IP address of the master station The default address is 10 200 1 1 so the address is http 10 200 1 1 The browser will then access the...

Page 22: ...IP and click on the Properties button in this window The Internet Protocol TCP IP Properties window will open Next change the setting to force the Laptop to adopt a fixed IP address and enter an addr...

Page 23: ...network No commands or alterations to the system are permitted Write As for read access with the addition of the ability to issue network commands swap masters and command actuators on the option card...

Page 24: ...Configuration System Diagnostics Master Station datalogger Host Analyser Option Diagnostics Network Diagnostics Option Event Log FCU Menu FCU 1 to 32 control and data Admin Users requires Admin level...

Page 25: ...retrieved even at the administrator level Select the box with a mouse and enter the appropriate name or password then click on the login button The system will move to the next page if the login is ac...

Page 26: ...tag as entered during configuration Status Module Health Indicates the absence green light or presence red light of a fault on the this CPU ESD Presence Shows a yellow light if an Emergency Shut Down...

Page 27: ...light shows if any actuator on the network is unavailable due to its Actuator Alarm monitor relay having tripped ESD Active If there is any Emergency Shut Down signal present on the system a red ligh...

Page 28: ...nd the CPU control capability software fitted and various options selected All of these settings can be modified but only by users with Administration level access There are no controls on this page T...

Page 29: ...activity Controls Available to all user levels MS datalogger Reveals a pop up showing a log of the activity on the master station and the source of requests or commands received Host analyser Reveals...

Page 30: ...full the log rolls over and rewrites over the oldest events the log is 1Mbyte in size Date and Time Formatted Day Month Year or Month Day Year Modbus Message Standard Modbus RTU format for all write...

Page 31: ...er to a printer attached to the PC Save Saves the logger data to a file on the PC The saved file is of the type cmdlog log and can be opened in the Notepad on the PC It can also be imported into a spr...

Page 32: ...is especially useful for debugging a host control system to ensure that messages are correctly formatted and that the required control or data points are being accessed In particular the use of corre...

Page 33: ...evices This is the number of field units that are expected to be located on the On Network network It is the highest address that the network will scan up to when locating field units All field units...

Page 34: ...d will Reset Initialised show the cause of the last reset reconfigure that occurred By The possible reasons are Power on Reset loop configured because the master station powered up Fault Found fault d...

Page 35: ...ave been identified and found by the option card during the last loop reconfiguration process reset Each time the loop is reconfigured the map is regenerated and repopulated Any field unit that is not...

Page 36: ...and in the case of the ESD source where the signal originated Controls Available to all user levels Print Prints the logger to a printer attached to the PC Save Saves the logger data to a file on the...

Page 37: ...ally prevent operation whilst Comms Fail indicates that the actuator is no longer in communication with the network The final column has Navigation controls to the individual FCU screens Controls Avai...

Page 38: ...des the ability to change the actuator s position by means of the control buttons When not in communication the screen may still be visited but the picture has a large red cross over it to show a lack...

Page 39: ...xiliary Input Active or Inactive shows the status of the actuator Digital inputs 1 to 4 Valve Position Current position closed open or stopped mid position Actuator Moving or stationary Running Direct...

Page 40: ...tion on how to set these fields is contained in the actuator field unit manuals Controls Save Settings Edited fields may be saved accessible by Administrator level users only Show Alarms Viewable by a...

Page 41: ...ipped Torque Tripped torque limit level exceeded Manual move actuator moved by the handwheel POR power on reset Watchdog Field unit watchdog alarm AUX OR Auxiliary input present Start Stop Failure to...

Page 42: ...ly Open command to open the valve fully Stop command to stop the actuator in its present position Close command to close the valve fully ESD command to put the valve in its Emergency Shut Down positio...

Page 43: ...cross over it to show a lack of communications Navigation Navigation between the field units is either by returning to the previous screen or by using the navigation buttons on this screen Entering an...

Page 44: ...Alarm Status No Alarm or Alarm Actuator Position For actuators fitted with position feedback facilities a bar graph shows the current actuator analogue position between 0 closed and 100 open Controls...

Page 45: ...ntre column moving Monitor Relay monitor relay alarm Open Limit open position limit switch Closed Limit closed position limit switch Comms Failed loss of network communication Thermostat motor thermos...

Page 46: ...Controls Available to Write and Administration user levels only Open command to open the valve fully Stop command to stop the actuator in its present position Close command to close the valve fully E...

Page 47: ...s over it to show a lack of communications Navigation Navigation between the field units is either by returning to the previous screen or by using the navigation buttons on this screen Entering an add...

Page 48: ...osition between 0 closed and 100 open Controls Show Alarms Viewable by all user levels Pop up screen shows the alarms on the actuator as red lights grey is no alarm Actuator Controls Available to Writ...

Page 49: ...t in communication the screen may still be visited but the picture has a large red cross over it to show a lack of communications Navigation Navigation between the field units is either by returning t...

Page 50: ...ays Alarm Status No Alarm or Alarm Analogue Input 1 and 2 For the two analogue input channels a bar graph shows the current actuator analogue position between 0 and 100 Controls Parameters Viewable by...

Page 51: ...ed Analogue Output when last altered and by which source Controls Print Prints the datalogger to a printer attached to the PC Save Saves the datalogger data to a file on the PC FCU Controls Available...

Page 52: ...vailable are all similar to those used on the FCU already explained IQ Analogue The IQ Analogue FCU allows two standard instrumentation analogue signals to be transmitted from the field to the master...

Page 53: ...1 1 Issue 06 09 The EH electro hydraulic actuator is also fitted with a field unit similar to a standard IQ actuator The controls available include the event log and ability to set the parameters of t...

Page 54: ...ame a User ID a User Level and a Password When logging into the system to gain entry the User ID and Password are required The screen shows the Name User ID and User Level the password is not shown an...

Page 55: ...ser name e g Administrator to bring up the Modify User screen for editing user details The Add User screen contains the fields to be completed for each permitted user either by completing the data box...

Page 56: ...word of letters and or numbers kept secret by this user Repeat Enter the same password as above Password Back Exit the screen without saving anything and return to the previous screen Save Settings Sa...

Page 57: ...ngs The values set in these parameters can be viewed under the View Configuration button but they may only be altered by users logged in at Administrator level The Masterstation settings relate to the...

Page 58: ...ceipt of the ESD signal as required for each valve refer to individual actuator manuals Command These four drop down boxes can each be set to Enable or Disable the Settings host system commands to the...

Page 59: ...from pumps and motors Retain Data on Normally the data base information about an actuator is cleared to zeros if Loss of communication with the actuator is lost This ensures that the false valve Comm...

Page 60: ...as well Linking the port alarm operations is useful in dual redundant serial link configurations between the master station and the host computer Controls Save Settings Saves the settings to the Paks...

Page 61: ...parity used by this port The choices are None Always 0 Odd or Even parity Physical Interface Either RS232 or RS485 showing the switch setting for the physical interface from the CPU module read only...

Page 62: ...restricted by the entries Controls Save Settings Saves the settings for the ports Until they are saved any alterations to the settings will not take effect Modbus Message Brings up the Modbus test sc...

Page 63: ...Modbus registers Number of FCUs is at master station register 0007 Function code 03 holding register read can be used The Modbus function would be Modbus Address function code register to start read n...

Page 64: ...as specified in the user setup screen Each system user may be specified to receive alarm messages as e mails or by text when their log in credentials are specified Refer to the section on Users to see...

Page 65: ...ation to the server Sender A name to identify the master station It could be the tag name Reply Path The email address for return messages i e when alarm e mail messages are replied to Test E mail Ent...

Page 66: ...and corrected here Timezone Select the desired time zone from the drop down list A new time zone entry requires that the master station reboots Network Time NTP is a protocol designed to synchronize...

Page 67: ...ore meaningful name It will be filed in a location chosen during the save routine A previously saved file can be restored by browsing to the nbb file location and using the load button FCU Tag File Th...

Page 68: ...he internet then additional settings for the gateway and DNS servers must also be added This page allows these settings to be made Network Settings MAC ID The unique identifier for this hardware The M...

Page 69: ...ay IP address is entered here so that the master station and gateway can exchange data Primary DNS When connecting to the internet the ISP will have two server IP addresses that are needed by the syst...

Page 70: ...can either be directly connected as described earlier or via an Internet connection Once the PC is connected it is necessary to log in to the system at Administration level using the correct password...

Page 71: ...n page Modify this page to set up the master station parameters by using the drop down menus on each parameter Most default values will be suitable for getting the system started though consideration...

Page 72: ...nits DV Convert should be set to On if position control is being used on the IQ IQT Skil or EH actuators on the network Data Retain set to Off clears all the field unit data if communication is lost S...

Page 73: ...the master station CPU module Click on save settings to send the values to the module The modbus message button opens up a page where messages can be created and sent to the master station one at a t...

Page 74: ...browser must be restarted and directed to the new IP address Re establishing Ethernet Communication with a new IP address Because most PCs associate a MAC ID to each IP address the chances are that t...

Page 75: ...nly control All field units must have a unique network address The two wire loop and all the actuators should be connected to the master station with all the actuators left without power except for th...

Page 76: ...port B wires and disconnect the port A wires Reset the network and check that all the actuators are still on the map Having verified the loop wiring and the connection of all the actuators in both dir...

Page 77: ...1 1 Issue 06 09 This screen lists the FCUs in address order their type and current condition The FCU Control button will bring up the page showing the information in more detail Fig 66 List of Connect...

Page 78: ...will automatically refresh if the valve is moved and the buttons at the top of the page can be used to move to the next or previous actuator on the network Once the system is running correctly make a...

Page 79: ...such excess is applied the product should be returned to Rotork or otherwise checked by a competent person before re use even if no damage is immediately evident Use only the specified fuse type and...

Page 80: ...g figures should only be used for statistical purposes These predictions are only valid if the maintenance procedures and maintenance intervals stated in Rotork documentation are observed Environmenta...

Page 81: ...Safety 81 of 82 Publication S703E V1 1 Issue 06 09 This page is intentionally blank...

Page 82: ...1225 733 200 Fax 44 0 1225 333 467 e mail mail rotork co uk USA Head Office Rotork Controls Inc 675 Mile Crossing Blvd Rochester New York 14624 USA Tel 1 585 247 2304 Fax 1 585 247 2308 e mail info r...

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