P460 - FGH Controls Limited Homepage
Contents
1. The top line of the display shows the current profile condition If the profiler is not running the word Ready is displayed If the profiler is running the running profile number Prof 1 seg 3 00 25 23 e and the current segment are shown along with the current total elapsed time in hours minutes and If the running profile is in hold the word Holding will be displayed flashing alternatively with the elapsed M55 Issue 1 2 Page 10 Series 460 User Manual time If the running profile has a name this will be High Temperature Soak displayed flashing alternatively with the profile status The central area of the display shows the current Up Ramp values of each of the setpoint channels Down Ramp The symbol next to the setpoint shows whether the Dwell setpoint is ramping or is in a dwell Dwell Ended The bottom line of the display shows the current status of the eight event outputs The events are labelled 1 to 8 from left to right An 1 2 3 4 5 6 7 8 event which is on is indicated by a filled circle Off On Off Off Off Off Off Off From this display press either the up or down buttons to advance to the Detailed status display Alternatively press any numbered button to advance to the Main Menu 2 4 Detailed status display This display shows detailed profile status for the selected channel The top line of the display shows the profile status as f2. Panel Cutout ken Ga i Additional measures will be required to seal multiple instruments if they are mounted in a common slot These measures may consist of sealing compound or other devices at the discretion of the installer M55 Issue 1 2 Page 4 Series 460 User Manual 1 2 Electrical Connections All electrical connections are made to the rear of the instrument via screw terminal blocks Each terminal block plugs into a receptacle in the rear of the instrument and may be unplugged to allow easy wiring and to withdraw the instrument from the panel Made in England 95 253 VAC 50 60Hz lt 6VA Communications RS422 Digital Inputs e Les com FGH Controls Ltd Herts England FFFFFFNTH LlLl dc Event Outputs 253V 0 5A RMS Resistiv 1 2 1 Supply Mains power should be connected to the three way mains terminal block The instrument will accept 95 to 253 V RMS at Earth 50 to 60Hz and consumes approx 6VA A good earth Neutral connection is essential for safety and screening purposes and Line this is internally connected to the metal case of the instrument 1 2 2 Digital Inputs Up to two digital inputs may be connected to the P460 for DIN 1 the purposes of remote start stop or hold etc Each input DIN 2 should be driven from a voltage free relay contact or push button The actual function of each input is programmable within the instrument Common 1 2 3 Event Outputs Common
3. 7 Dwell units OFF Dwells in hours ON Dwells in minutes Switch 8 is used to select whether or not the security password is used If this is disabled then the profiler configuration data is able to be changed by any user SW 8 Security System OFF Security system is ENABLED ON Security system is DISABLED 2 Operation 2 1 General The FGH P460 series is a range of multi channel digital profilers setpoint generators for use will FGH series 1000 2000 and 3000 controllers The P460 may have up to four setpoint channels This manual shows illustrations of the 4 channel version and some displays may differ slightly from the users actual instrument 2 1 1 Using the display and buttons The instrument keypad consists of six numbered buttons and two up down buttons All buttons will emit a short beep when pressed 1 2 3 4 5 6 a The numbered buttons are soft function keys whose meanings change depending on the current display mode The function of each button is indicated on the display For example When a menu is displayed The function of each button is shown next to a number in a black square For the menu opposite Press 1 to start or stop a profile Press 2 to pause or release the profile Press 3 to edit a profile Press 4 to configure the instrument M55 Issue 1 2 Series 460 User Manual Page 9 Press 5 to return to the prev
4. The 8 profile event outputs should be wired to the 9 way Event 1 O P connector Each output consists of a normally open relay Event 2 O P contact rated at 0 5A RMS at 253V maximum into a Event 3 O P resistive load Event 4 O P Warning S0 Event 5 O P Each relay is internally fitted with a CR arc suppression Event 6 O P device which will result in a small residual current flow Event 7 O P approx 4mA at 250V when the contact is open This Event 8 O P small current may result in very light loads failing to switch off If this is the case DO NOT remove the internal arc suppression devices A 10K 10W resistor should be connected across the load this will usually solve any problem The resistor will get hot so take care to mount it so that this does not cause a hazard M55 Issue 1 2 Series 460 User Manual Page 5 Com Line Supply Neutral Event 1 _Event 2 _Event 3 Event 4 Event 5 Event 6 Event 7 Event 8 Note Output 8 may be used as a watchdog output relay This relay will change its state every 30 seconds indicating that the unit is passing messages between the host computer and controller network ports If these messages stop for more than 60 seconds the watchdog output will stop The watchdog feature is enabled by DIL switch 3 being turned on 1 2 4 Serial Communications All series 460 instruments are equipped with two RS422 standard serial communications ports This allows the units to co
5. determines to which instrument the message is directed An instrument will ignore a message that does not contain its own address 7 2 4 Parameter code and SS field The parameter code field of the message is a single ASCII character this identifies the parameter group within the instrument which is the target of the read or write message Used in conjunction with the two digit SS field the instrument is able to identify the specific parameter required Code SS R W Parameter SS notes Value notes R W Profile pointer A Seg R W Segment Events Seg 0 ready Coded type 1 B Seg R W_ Profile Chan 1 Seg ramp rate 0 Step 1 End C Seg R W Profile Chan 1 Seg target level Seg 0 ready D Seg R W Profile Chan 1 Seg dwell time E Seg R W Profile Chan 1 Seg terms set 0 NC F Seg R W Profile Chan 1 Seg alarm set 0 NC G Seg R W Profile Chan 2 Seg ramp rate 0 Step 1 End H Seg R W Profile Chan 2 Seg target level Seg O ready Seg R W Profile Chan 2 Seg dwell time J Seg R W Profile Chan 2 Seg terms set 0 NC K Seg R W Profile Chan 2 Seg alarm set 0 NC L Seg R W Profile Chan 3 Seg ramp rate 0 Step 1 End M Seg R W Profile Chan 3 Seg target level Seg O ready N Seg R W Profile Chan 3 Seg dwell time O Seg R W Profile Chan 3 Seg term
6. main menu and the Profile edit menu will be ah ee Ge displayed Edit Alarm Sets Select option 2 Edit Terms Sets Set Ready Conditions A summary of the terms sets are shown Use the up down buttons to move the edit pointer until it points to the terms set that you wish to edit 25 30 NC To edit the selected terms set press the 5 button and the Edit Terms Set display will appear The top line of the display shows the current terms Edit Terms Set 1D set being edited For example 1D means terms set 1 for the dwell phase Eed S 4 d A parameter may be modified by first moving the Derivative 25 edit pointer using button 2 Then use the up down buttons to modify the value as required To set the selected parameter to NC No change press button 4 Use button 3 to advance to the next terms set M55 Issue 1 2 Page 18 Series 460 User Manual 3 6 Editing the alarm sets To edit an alarm set invoke Edit profiles from the main menu and the Profile edit menu will be Edit a Profile Edit Terms Sets displayed Edit Alarm Sets Select option 3 Edit Alarm Sets Set Ready Conditions Ouit A summary of the alarm sets are shown Use the up down buttons to move the edit pointer until it Level Type points to the alarm set that you wish to edit 1000 High i 950 NC NC Low To edit the selected ala
7. password will be in operation until the instrument display times out and reverts back to the Status Overview display 5 Configuration 5 1 General To perform any configuration function the user must invoke Configration from the Main Menu by pressing button 4 If security is active you will be asked to enter the password in the Security Check display If this is successful the Configuration Menu will be shown All configuration functions are performed from this menu display 5 2 Channel configuration Invoke Channel Setup from the Configuration Menu and the Channel Setup display will be shown This display is used to set the setpoint limits channel title and units for each of the setpoint channels available M55 Issue 1 2 Series 460 User Manual Page 21 The display initially appears with channel 1 displayed use button 1 to select the channel required Use button 2 to move the edit pointer to the parameter of interest and then use the up down button to change the value as required Minimum Enter the minimum value of setpoint allowed for the channel The user can introduce and move the decimal point position at any time by pressing the 3 button Maximum Enter the maximum value of setpoint allowed for the channel Label This is the title of the channel When the edit pointer is opposite the label an underline cursor will appear under the first character position Use button 5 to move this cursor
8. the profiler is executing a dwell and a supply interruption occurs It is very likely that during the Zone temps fall power outage the channel measured values will PF drop Upon supply restoration the instrument a NG GG Continues forces each of its profile setpoints to be egual to be EN LE the mv of the master controller on each channel Seek level and ramps the setpoints back to the dwell level at the segment ramp rate When the setpoint reaches the dwell level the dwell timer continues from where it left off Power OFF Power ON M55 Issue 1 2 Page 20 Series 460 User Manual 4 Security The P460 is equipped with a password security system that will discourage tampering by an unauthorised user See section 5 for information on how to configure the security system If the password is rejected then the user will either be returned to the previous menu or will be allowed to proceed but will not be permitted to change any instrument settings 4 1 Password entry If security is activated on your instrument then you may be asked to enter a password if you are about to perform a sensitive operation Enter the 4 digit password using the numbered buttons An asterisk is shown on the display as each button is pressed After the fourth button is pressed the display will indicate if the password has been recognised If the password has been accepted the user will be allowed to proceed with the operation The successful
9. to select the required position and then use the up down button to change the character displayed at that position The maximum length of the channel label is 5 characters Units This is the units of measure of the channel When the edit pointer is opposite the units an underline cursor will appear under the first character position Use button 5 to move this cursor to select the required position and then use the up down button to change the character displayed at that position The maximum length of the units is 5 characters 5 3 Security To change any of the security settings for the instrument the user should invoke the Security Menu from the Configuration Menu 5 3 1 Changing the password Invoke Change Password form the Security Menu and the Change Password display will appear Initially this display shows the current password in use If this is shown as zero then no password is currently in use Use buttons 1 to 6 to enter the new password Each number will appear as the button is pressed When the fourth number has been pressed two options will appear on the bottom line of the display Use button 5 to save the new password or button 6 to cancel M55 Issue 1 2 Page 22 Series 460 User Manual 5 3 2 Clearing the password To clear the password and hence disable password security Invoke Clear Password from the Security Menu The display will then ask you to confirm that you wish to proceed Press button 1 to cle
10. will be displayed This will cause profile execution to end at this segment Level M55 Issue 1 2 Page 16 Series 460 User Manual Enter the dwell level required This is the target value for the ramp and the channel setpoint will remain at this level for the dwell time Dwell Enter the time required for the dwell phase The channel setpoint will remain at this level until the specified time has elapsed Enter zero if no dwell is required TS Enter the number of the terms set required for this segment If no terms set is to be used drive the number downwards past one to set NC No Change AS Enter the number of the alarm set required for this segment If no alarm set is to be used drive the number downwards past one to set NC No Change Events When the edit pointer is opposite the segment events an underline cursor will appear under the first event Use button 5 to move this cursor to select the required event and then use the up down button to turn it on or off The events are numbered 1 to 8 from the left An event that is shown as a dark circle is programmed to be ON Press 1 to display the segment information for the next channel or press 3 to display the next segment When profile entry is complete press 6 to return to the previous display 3 3 Viewing a graph of a profile Invoke Edit profiles from the main menu and the Profile edit menu will be displayed Select option 1 Edit a profile Se
11. 0 instrument Read transactions requests for data from the P460 or write transactions data sent to the P460 7 2 1 Read transactions Read transactions are used to acquire data from the P460 and consist of messages of the following general form RAAPSS lt CR gt Where R Read message header ASCII code 52h AA _ Instrument address P Parameter code SS _ Secondary parameter code lt CR gt Message terminator ASCII code 0Dh Messages to the instrument may include spaces or linefeeds if required These will be ignored Messages from the instrument will not contain either linefeeds or spaces 7 2 2 Write transactions Write transactions are used to write data into the P460 and consist of messages of the following general form WAAPSSD D lt CR gt Where W Read message header ASCII code 57h AA _ Instrument address P Parameter code SS _ Secondary parameter code D D Data to write lt CR gt Message terminator ASCII code 0Dh Messages to the instrument may include spaces or linefeeds if required These will be ignored Messages from the instrument will not contain either linefeeds or spaces M55 Issue 1 2 Page 26 Series 460 User Manual 7 2 3 Instrument address Each instrument must be given a unique address between 00 and 09 This address is set as part of the instrument configuration see section 4_ Serial communications setup The address field of the message consists of two ASCII numerals and
12. FOH User Manual NRW R 1 Series 460 Digital Profiler FGH Controls Ltd Openshaw Way Letchworth Herts SG6 3ER England Tel 44 0 1462 686677 Fax 44 0 1462 671860 www fgh co uk Series 460 User Manual Page 1 Series 460 User Manual Contents M55 Issue 1 2 Page 2 Series 460 User Manual 44 ype4 siart allow data 23 fa ee A4 by yne ss giants GG nn FL FA M55 Issue 1 2 Series 460 User Manual Page 3 1 Installation 1 1 Panel Mounting The instrument will fit into a DIN standard 92mm x 92mm 0 8mm 0 square cut out and will accommodate a panel thickness up to 7mm 96mm 16mm 152mm b A The instrument projects behind the panel by less than 152mm including terminal connections If IP65 sealing is reguired then ensure that the panel sealing gasket is fitted into position behind the bezel The gasket may be omitted If IP65 sealing is not required 96mm y Unscrew the two instrument mounting screws on the bezel until the two retaining ears are near their rearmost positions Whilst holding the retaining ears retracted within the recesses fit the instrument R S Mounting into the panel cut out Hold the instrument in place and gently eas tighten the two mounting screws on the front of the instrument until the gasket is compressed and the instrument is firmly retained in the panel DO NOT OVER TIGHTEN THE SCREWS e a 5mm min
13. ar the password or button 6 to return to the Security Menu 5 3 3 Security options The user may specify if the operator can start stop or pause a profile from the instrument front panel Invoke Security Options from the Security Menu Position the edit pointer as reguired with button 2 and use the up down button to select the option reguired Options No The user may not perform the operation from the instrument front panel Yes The user can always perform the operation from the instrument front panel PW The user may perform the operation if the password is correctly entered 5 4 Serial communications setup To set up the serial communications parameters for the instrument invoke Communications from the Configuration Menu Position the edit pointer as reguired with button 2 and use the up down button to select the values reguired Host Baud Rate This is the speed at which the instrument is to communicate with a host computer Normally set to 9600 or 19200 Baud Host Address This is the unigue address that will identify this instrument on the host communications network The address can be set between 0 and 9 Net Baud Rate This is the speed at which the instrument is to communicate with the remote controllers connected to the controller network port Normally set to 4800 or 9600 Baud M55 Issue 1 2 Series 460 User Manual Page 23 5 5 Digital inputs To set up the function of the digital inputs for the inst
14. ata field contains either the data requested read transaction or confirmation of the data just MY sere All data returned is numeric and is of the type defined in section 7 6 Error message responses Commands to the P460 that contain an error or cannot be understood result in an error reply of the general form AAEF lt CR gt Where Message header ASCII code 3Fh AA Address of the replying instrument E Character fault error code F Message fault error code M55 Issue 1 2 Page 30 Series 460 User Manual lt CR gt Message terminator ASCII code 0Dh Character error codes Field E is a single ASCII hexadecimal number who s binary weighting indicates the type of character corruption that may have given rise to the error BIT MEANING 0 receiver over run error 1 framing error 2 parity error 3 break in transmission Message error codes Field F is a single ASCII hexadecimal number who s binary weighting indicates the type of message fault that may have given rise to the error BIT MEANING 0 Illegal number of characters in command 1 Illegal data 2 Illegal parameter code or number 3 Illegal header In general only one possible error will be identified thus either fields E or F will be zero Where a command character is found to be corrupted then the receiving instrument s will treat the corrupted character as the final character of the message and will attempt to interpret it Where the corruption has o
15. ccurred in the header or address fields of the message then no reply is given and message is ignored If as is likely the message continues after the corrupted character then the instruments will treat that part of the message after the corruption as a new message This will generate a reply if the supposed address in the remainder of the message is recognised by an instrument this is bound to result in an error message but fields E and F will refer not to the original corruption but to the meaningless nature of the remainder of the message For this reason no great reliance should be placed on the validity of either E or F M55 Issue 1 2
16. ddress of 10 or higher will be passed through to the controller network Similarly any transaction reply from the controller network will be passed back to the host computer Message transactions received by the host port with a destination address less than 10 will NOT be passed on The following table gives the available address ranges for the external instruments P460 A Chan1 Chan2 Chan3 Chan4 Chan5 Chan6 Vacant 0 10 20 30 40 50 60 70 to to to to to to to to 9 19 29 39 49 59 69 99 Master 10 A 20 A 30 A 40 A 50 A 60 A Control instruments for channel 1 must have addresses in the range 10 to 19 inclusive All external devices in this range will receive setpoint and control terms information from M55 Issue 1 2 Page 24 Series 460 User Manual channel 1 One instrument in this address range is designated the channel master controller and it is this controller s measured value which is used to servo start the channel 1 profiler Control instruments for channel 2 must have addresses in the range 20 to 29 inclusive All external devices in this range will receive setpoint and control terms information from channel 2 One instrument in this address range is designated the channel master controller and it is this controllers measured value which is used to servo start the channel 2 profiler Control instruments for channel 3 must ha
17. eft An event that is shown as a dark circle is programmed to be ON M55 Issue 1 2 Series 460 User Manual Page 19 3 8 The affect of Holds The operation of the profiler may be modified by the use of Holds A Hold is usually generated by an external controller in response to an out of limits condition Holds are received by the P460 via a digital input When the profiler is in Hold both the profile setpoint and profile time base are frozen for the duration of the Hold This est effectively pauses the profile until the hold is removed HOLD during a ramp If a Hold occurs during a ramp stage the ramp is suspended for K fie the duration of the hold This has the affect of extending the E a expected ramp time If a hold occurs during a dwell stage the dwell timer is stopped SE ee for the duration of the hold Obviously the apparent dwell time HOLD during a 2 hour soak may be extended if a hold does occur 3 9 Supply failures during a profile Zone temps fall Supply interruption during a ramp Wore power Ou If the profiler is executing a ramp and a supply GE interruption occurs It is very likely that during the TU CAIS power outage the channel measured values will drop Upon supply restoration the instrument forces each of its profile setpoints to be egual to the mv of the master controller on each channel and continues the ramp form there Power OFF Power ON Supply interruption during a dwell If
18. er may be connected to the controller network but will receive no information from the P460 The address of the master controller on each channel is the P460 address PLUS the channel base address Thus if the P460 has a host address of 5 then the channel master addresses will be 15 25 35 and 45 7 Host Serial Communications The P460 unit has 2 serial communications channels The controller network port is used solely for communications between the P460 and its external controllers and is not available for use by the user The host port however is available to the user and this section provides the details required to implement successful data communications between instrument and PC 7 1 Data format Communications may be performed in either 2 wire RS485 or 4 wire RS422 standards Both modes are half duplex only The data format and Baud rate are fixed as follows Baud Rate up to 19200 Start bits 1 M55 Issue 1 2 Series 460 User Manual Page 25 Word length 7 bits Parity Odd Stop bits 1 7 2 Message structure All series 460 instruments act as slave devices This means that an instrument will not itself initiate a transaction it merely responds to transaction requests initiated by a host computer or other similar device Messages consist entirely of printable ASCII characters so transaction data may be conveniently tested or monitored using any terminal device There are two types of transaction which are supported by the P46
19. he channel controller This value is stored in digits corresponding to the display resolution of the intended target controller For example if the target controller is displaying in tenths then and alarm set value of 1000 will correspond to an alarm level of 100 0 in the target controller Alarm Type Specifies the alarm 1 type for the channel controller As for terms sets an alarm set can be selected for use in the ramp or dwell phase of any segment of any channel When a setpoint channel starts a ramp or dwell phase the selected alarm set values are transferred to all the control instruments on that channel The alarm sets are numbered 1R to 10R for ramp phase alarm sets and 1D to 10D for dwell phase alarm sets Thus if a segment is programmed to use alarm set 3 for example then it will use set 3R during its ramp phase and 3D during its dwell phase Within an alarm set any parameter may be set either to a value or to NC No Change A value that is set to NC is not transferred to the control instruments Thus it is possible just to change one parameter at a time M55 Issue 1 2 Series 460 User Manual Page 15 The operation of the alarm sets is exactly the same as for terms sets explained above 3 2 Editing a profile To edit a profile invoke Edit profiles from the main menu and the Profile edit menu will be displayed Select option 1 Edit a profile Select the profile number that you require by using the up dow
20. ious screen For data entry screens the function of each numbered button is usually shown on the bottom line of the display Press 1 to change the channel viewed Press 2 to move the pointer to the next parameter Press 3 to change the decimal point position Press 5 to move the cursor to the right Press 6 to return to the previous screen Up Down keys These keys are used to change the value of the parameter currently selected on the display The currently selected parameter is indicated by means of the symbol Use key 2 to cycle through the available parameters Press the Up button to increase the value or select the next option in a list and the down button to decrease the value or select the previous option in a list If the button is held down the value of the parameter will change continuously Slowly at first and then with increasing speed until the button is released 2 2 Software version and serial number When power is first applied to the instrument The power up display appears showing the instrument serial number and software version After a few seconds the display will disappear and is replaced with the Status Overview 2 3 Status overview display This is the default display for the instrument and shows an overview of the current profile status along with the current setpoint values for each channel and the status of the event outputs The display is divided into three main areas
21. is run the profiler starts at segment 1 and executes each segment in turn until an END segment is reached or until there are no more segments left Setpoint Target Level Ramp Rate lt Dwell Time p Start Level Ramp Phase Dwell Phase Time 31 41 A profile segment During a segment the channel setpoint will ramp from the previous level to its target level at the rate specified by the user This rate may be in digits per minute or digits per hour depending on how the configuration DIL switch is set for the instrument When the target level is reached the segment will enter the dwell phase and the dwell timer is started The setpoint will remain at the segment target until the dwell timer reaches its programmed value at which point the next segment will commence The dwell time may be entered in hours and minutes or minutes and seconds depending on how the configuration DIL switch is set for the instrument On a multi channel instrument each channel will generate is setpoint obeying its individual ramp rates targets and dwell time Channels are synchronised with each other at the end of both the ramp and the dwell phases This means that those channels with faster rates or shorter dwell times will wait for slower channels to complete before advancing M55 Issue 1 2 Series 460 User Manual Page 13 Channel 1 Channel 2 lt Dwell Time Ramp Phase Dwell Phase gt g
22. lect the profile number that you require by using the up down buttons If the profile has a name then it will appear on the line below the profile number To view a stylised graph of the selected profile press the 2 button The profile is shown in a stylised form All segments are shown with the same width and no distinction is made between short and long segments A dot is shown at the bottom of the display to indicate the segment boundaries The display initially shows the graph for channel 1 To view other channels press button 1 until the desired channel is shown M55 Issue 1 2 Series 460 User Manual Page 17 3 4 Deleting a profile Invoke Edit profiles from the main menu and the Profile edit menu will be displayed SE Edit Terms Sets Select option 1 Edit a profile Edit Alarm Sets Set Ready Conditions Quit Select the profile number that you wish to delete SERO by using the up down buttons If the profile has a name then it will appear on the line below the profile number High temperature soak Profile Number 1 To delete the selected profile press the 3 button List MGraph cir Press 1 to confirm that you really wish to delete Clear profile 1 the profile If you are not sure press the 3 button or the 6 button to return to the previous display ee Ml Yes El No 3 5 Editing the terms sets To edit a terms set invoke Edit profiles from the
23. mal Point Position Coded type 3 Chan R W Channel Title Text Max 5 chars Use _ for spaces m Chan R W Channel UOM Text Max 5 chars Use _ for spaces n R Segment phase ramp or dwell elapsed time M55 Issue 1 2 Series 460 User Manual Page 27 o R W Start allow function code Coded type 4 p R W Pause allow function code Coded type 4 q R W Digital Input 1 function code Coded type 5 r R W Digital Input 2 function code Coded type 5 s R Instrument serial number 4 digit Hex t Prof R W Profile Title Max 30 chars Use _ for spaces u V w x W Profiler Start Stop Hold Step Coded type 6 y Z What R Instrument information Coded type 7 7 3 Numeric Data fields The data field part of the message consists of 4 ASCII numeric characters preceded by an optional minus sign The data field should be left padded with zeros such that there are always 4 numeric characters For example 0000 represents zero 0100 represents the number 100d 0100 represents the number 100d 7 4 Coded data fields Certain parameters use data fields whose meanings are coded 7 4 1 Type 1 Event data Event information is encoded as a 8 bit binary number transmitted as a four character ASCII decimal number Bit Weightings Bit O Event 1 Bit 1 Event 2 Bit 2 Event 3 Bit 3 Event 4 Bit 4 Event 5 Bit 5 Event 6 Bit 6 Event 7 Bit 7 Event 8 For example 0000 represent
24. mmunicate with each other and any other suitable equipment over distances up to 1200m The HOST port is used for communications with a host computer system for monitoring or recording purposes The CONTROLLER port is intended purely for communications between the P460 and its control instruments only and is used for the transfer of setpoints and control information TX Controller TX Comms Network RX RX Host ER Computer TX Comms Network Common Host Network Host Computer Addr 0 to 9 Controller Network pone SE Ee ER CSC 7 I y I re y pas i paH i Fee 1 SE LOCAL Ioeal LOCAL LOCAL JLOCAL i LOCAL Channeli Channel2 Channel 3 Channel 4 Channel5 Channel6 Controllers Controllers Controllers Controllers Controllers Controllers Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Addr 10 to 19 Addr 20 to 29 Addr 30 to 39 Addr 40 to 49 Addr 50 to 59 Addr 60 to 69 M55 Issue 1 2 Page 6 Series 460 User Manual The serial communications should be connected using the four wire system The instrument uses a balanced voltage communications system which will perform well under most situations provided some simple guidelines are observed 1 The communications wiring should be implemented using a suitable screened twisted pair cable The cable screen should be earthed at one point only 2 The cable should be ro
25. n 7 4 5 Type 5 Digital inputs Digital input type information is transmitted as the usual 4 digit ASCII decimal number 0000 Off 0001 Start 0002 Stop 0003 Hold 0004 Run Ready 0005 Ramp Hold 0006 Dwell Hold M55 Issue 1 2 Series 460 User Manual Page 29 7 4 6 Type 6 Start Stop Hold Parameter code x provides a convenient way of controlling the profiler It is a write only parameter Data sent to this parameter has the following meanings 0000 Stop the profile 01XX Start profile XX 0200 Pause profile 0300 Release profile pause 0400 Step profile 7 4 7 Type 7 Instrument information Parameter code provides a means of reading the instrument information The piece of information read is dictated by the SS field of the message as follows 00 Read the instrument firmware version number 01 Read the maximum number of profiles 02 Read the maximum number of segments per profile 03 Read the number of channels 04 Read the maximum number of terms sets 05 Read the maximum number of alarm sets 06 Read the DIL switch setting 7 5 Normal message responses A successful message received by the instrument will usually initiate a message response This will consist of a message of the following general form AAPSSD D lt CR gt Where Response message header ASCII code 2Ah AA _ Instrument address P Parameter code SS Secondary parameter code D D Data lt CR gt Message terminator ASCII code 0Dh The returned d
26. n buttons If the profile has a name then it will appear on the line below the profile number To view a list of the named profiles press the 1 button To view a stylised graph of the selected profile press the 2 button To edit the selected profile press the 5 button and the View Profile display will appear This display shows a summary of the profile for a channel Use the up down buttons to scroll through the profile as required To view a different channel press the 1 button to cycle through the channels in sequence To edit a particular segment use the up down buttons to move the pointer to the segment required and then press the 5 button to edit the segment The segment editing display shows the data for one channel of the segment The top line of the display shows the profile and segment number currently being edited The number in the black square next to the word Rate shows the current channel number To display alternative channels press the 1 button to cycle through the channels available Use the 2 button to move the edit pointer from one parameter value to the next To modify the value use the up down buttons Rate Enter the ramp rate required This is the rate at which the setpoint moves from its previous value to the segment target level If the rate is driven down to zero then the word Step will be displayed this implies a step change in setpoint If the rate is driven down still further then the word End
27. ofiles have been given names then the profile name will be shown on the line below the profile number Finally press the 2 button to start the profile The display will immediately jump back to the Status Overview display To stop a profile which is currently running Invoke the Start Stop display as before and press the 3 button to stop the profile The display will immediately jump back to the Status Overview display 2 7 Pausing a profile A running profile may be paused from the instrument front panel or by remote control To pause a profile from the front panel invoke Pause Release from the main menu Press the 2 key to actually pause the profile The display will immediately jump back to the Status Overview display The pause will remain in effect until manually released by the operator To release the pause on the profile invoke the Pause Release display as before and press 3 The display will immediately jump back to the Status Overview display M55 Issue 1 2 Page 12 Series 460 User Manual 3 Profiles 3 1 General The standard P460 can hold 10 profiles of up to 12 segments each Other combinations are available to special order A profile segment consists of a ramp to a level followed by a dwell at that level for each of the setpoint channels The user may also specify the required states for any of the 8 event outputs and the control terms to be used by the channel controllers When a profile
28. oller Function 1000 Series 2000 Series 3000 Series TX 31 14 31 TX 30 13 30 RX 33 15 33 RX 32 16 32 Com 34 N A 34 Table of controller communications connections 1 3 Configuration DIL Switch Setting Several aspects of the instruments operation are set by the user on the options DIL switch This switch is accessible through a cut out in the case at the bottom of the instrument Use a narrow pointed device such as a ball point pen to set the switches to the required positions Not Used Must be OFF Watchdog Enable m Not Used Controller Network Type Ramp amp Dwell Units Password Usage Switches 1 and 2 are not used and should be left off Switch 3 is used to enable the watchdog output on event 8 Version V1 07 onwards SW 3 Watchdog Enable OFF Relay output 8 is used as event 8 ON Relay output 8 is used as a watchdog output Switch 4 is not used Switch 5 is used to select the type of controller network required M55 Issue 1 2 Page 8 Series 460 User Manual SW 5 Controller Network Type OFF Series 1000 or 2000 controller network ON Series 3000 controller network Switches 6 and 7 are used to select the programming units for ramps and dwells SW 6 Rate units OFF Rates in digits per hour ON Rates in digits per minute SW
29. or the Status Overview The middle two lines show the current setpoint and dwell elapsed time with the target values in brackets shown afterwards To view the status for a different channel press the 1 button until the required channel is displayed To view the profile status graph press either the up or down buttons 2 5 Profile status graph display This display shows a stylised graph of the profile for the selected channel The top line of the display shows the profile status as for the Status Overview As the profile is running the graph is shaded from left to right to indicate the profile progress The bottom line of the display indicates the channel number shown and the current value of the channel setpoint To view the status graph for a different channel press the button for the channel number required M55 Issue 1 2 Series 460 User Manual Page 11 2 6 Starting and stopping a profile Profiles may be started and stopped from the instrument front panel or by remote control In some cases starting and stopping of profiles from the instrument front panel may be disabled or may be password protected If this is the case please refer to section 4 Security To start a profile from the front panel invoke the main menu by pressing any numbered key from the Status Overview display Press the 1 key to select Start Stop profile Select the profile number that you wish to start using the up down buttons If the pr
30. rm set press the 5 button NC NC and the Edit Alarm Set display will appear The top line of the display shows the current alarm Edit Alarmset LD set being edited For example 1D means terms set 1 for the dwell phase A parameter may be modified by first moving the edit pointer using button 2 Then use the up down buttons to modify the value as required To set the selected parameter to NC No change press button 4 Use button 3 to advance to the next terms set AlarmLevel 950 Alarm Type NC 3 7 Profile ready conditions The profile ready conditions determine the values of the channel setpoints and the event outputs when a profile is NOT running To edit the ready conditions invoke Edit profiles Edit a Profile from the main menu and the Profile edit menu Edit Terms Sets will be displayed Edit Alarm Sets Select option 4 Set Ready Conditions o e SEENEN The Ready Conditions display appears showing the current Ready state values Ready Conditions Ready Setpoints Use button 2 to move the edit pointer to the E 0 00 Hl parameter of interest and then use the up down 900 K button to change the value as required SL 101010101010 When the edit pointer is opposite the segment events an underline cursor will appear under the first event Use button 5 to move this cursor to select the required event and then use the up down button to turn it on or off The events are numbered 1 to 8 from the l
31. rument invoke Digital Inputs from the Configuration Menu Position the edit pointer as required with button 2 and use the up down button to select the values required The function of each digital input is individually programmable from the following options Off The digital input is not used Start When made this digital input will start the profile Stop When made this digital input will stop the profile Hold When made this digital input will hold the profile Run Rdy When made this digital input will start the profile when not made the profile will be reset Ramp Hold When made this digital input will hold the profile if it is currently in the ramp phase Dwell Hold When made this digital input will hold the profile if it is currently in the dwell phase 6 Assigning controller network addresses The P460 instrument is a profiler only unit which uses external instruments to perform its control function The P460 communicates with these external instruments via the controller network port Setpoints and control parameters are regularly transferred from the P460 to the external controllers and vice versa It is vitally important to plan and configure the external instruments such that they receive the correct information The host computer may also communicate with these external instruments even though the are not connected to the same network Any message transaction received by the P460 host port with a destination a
32. s all events off 0001 represents event 1 on all others off 0024 represents events 4 and 5 on all others off 0255 represents all events on 7 4 2 Type 2 Profiler status Status information is encoded as a 8 bit binary number transmitted as a four character ASCII decimal number When the SS field is zero the overall profiler status is returned Bit Weightings Bit O Running M55 Issue 1 2 Page 28 Series 460 User Manual Bit 1 Dwell phase Bit 2 Hold Bit 3 Pause Bits 4to 8 Not used For example 0000 represents profile not running 0001 represents profile running not in dwell and not in hold 0005 represents running and in hold When the SS field is non zero the status of an individual channel is returned Bit Weightings Bit O Ramping upwards Bit 1 Ramping downwards Bit 2 In dwell Bit 3 Dwell time expired Bits 4to 8 Not used For example 0001 represents channel is ramping upwards 0004 represents channel has reached dwell target level 7 43 Type 3 Decimal point data Decimal point information is transmitted as the usual 4 digit ASCII decimal number 0000 represents no decimal point 0001 represents one place of decimal ie XXX X 0002 represents two places of decimal ie XX XX 0003 represents three places of decimal ie X XXX 7 4 4 Type 4 Start allow data Start and Pause allow information is transmitted as the usual 4 digit ASCII decimal number 0000 Not allowed 0001 Always allowed 0002 Allowed when password give
33. s set 0 NC P Seg R W Profile Chan 3 Seg alarm set 0 NC Q Seg R W Profile Chan 4 Seg ramp rate 0 Step 1 End R Seg R W Profile Chan 4 Seg target level Seg O ready S Seg R W Profile Chan 4 Seg dwell time T Seg R W Profile Chan 4 Seg terms set 0 NC U Seg R W Profile Chan 4 Seg alarm set 0 NC 0 Seg R W Profile Chan 5 Seg ramp rate 0 Step 1 End 1 Seg R W Profile Chan 5 Seg target level Seg O ready 2 Seg R W Profile Chan 5 Seg dwell time 3 Seg R W Profile Chan 5 Seg terms set 0 NC 4 Seg R W_ Profile Chan 5 Seg alarm set 0 NC 5 Seg R W Profile Chan 6 Seg ramp rate 0 Step 1 End 6 Seg R W Profile Chan 6 Seg target level Seg O ready 7 Seg R W Profile Chan 6 Seg dwell time 8 Seg R W Profile Chan 6 Seg terms set 0 NC 9 Seg R W Profile Chan 6 Seg alarm set 0 NC V Set R W Terms Set Prop band 9999 NC W Set R W Terms Set Integral Time 9999 NC X Set R W Terms Set Derivative time 9999 NC Y Set R W Alarm Set Level 9999 NC Z Set R W Alarm Set Type 9999 NC a Chan R Current Channel Setpoint b R Current Segment number c R Current Segment Dwell Elapsed time d R Current Event Outputs Coded type 1 e R Current Profile Number 9999 Ready f Chan R Profiler Status Chant Master Coded type 2 g Chan R Current Channel master measured value h R Total Profile Elapsed Time 8 digit Hex i Chan R W Channel Minimum Setpoint Limit j Chan R W Channel Maximum Setpoint Limit k Chan R W Channel Deci
34. set 6R during its ramp phase and 6D during its dwell phase M55 Issue 1 2 Page 14 Series 460 User Manual Within a terms set any parameter may be set either to a value or to NC No Change A value that is set to NC is not transferred to the control instruments Thus it is possible just to change one parameter at a time Programmed Terms set Terms set applied 3R 3D 3R 3D 2R 2D Terms Set Table Set P I D 2R 20 30 3 2D NC NC NC 3R 20 10 2 3D 50 20 NC Pa 50 o 5 o 0 Control parameters 10 20 20 20 50 50 D 2 2 2 l2 3 3 In the above profile section terms sets 2 and 3 are used to change the control parameters Note that in the second segment the programmed terms set is set to NC Thus the control terms do not change at all during the second segment and remain as programmed for the first Also terms set 2D is all set to NC This means that the terms for the dwell phase will remain unchanged from the ramp phase Remember Terms sets may be applied to any segment on any channel in any order Terms set 3 does not necessarily correspond to segment 3 3 1 4 Alarm sets The P460 also maintains a table of 20 different sets of alarm parameters called alarm sets Alarm sets are similar to terms sets but they specify the required alarm conditions for controllers on each channel Each alarm set contains two parameters Alarm Level Specifies the alarm 1 level for t
35. t Synchronisation points Channel 1 waiting Channel 2 waiting In the above two channel example channel 1 completes its ramp before channel 2 and so has to wait until channel 2 completes before the dwell phase is started Channel 2 dwell time completes before channel 1 and so has to wait before the next segment is started 3 1 2 Segment events Each segment contains the desired states for each of the available eight event outputs The programmed events will be applied to the outputs for the whole duration of the segment both the ramp and the dwell phases and are not related to any particular channel 3 1 3 Terms sets The P460 can maintain a table of 20 different sets of control parameters called terms sets Ten of these sets are applicable to ramps and ten to dwells Each terms set contains three control parameters Proportional Band Expressed as a percentage of the controller span this parameter specifies the gain of the controller Integral Time Expressed in seconds Derivative Time Expressed in seconds A terms set can be selected for use in the ramp or dwell phase of any segment of any channel When a setpoint channel starts a ramp or dwell phase the selected terms set values are transferred to all the control instruments on that channel The terms sets are numbered 1R to 10R for ramp phase terms sets and 1D to 10D for dwell phase terms sets Thus if a segment is programmed to use terms set 6 for example then it will use
36. uted well away from sources of electrical noise such as motors contactors and any other high voltage wiring 3 The network should be wired as a daisy chain taking the wires into one instrument and hence on to the next Wiring spurs should be avoided Take care to continue the cable screen on to the next instrument 4 For long cable runs or noisy environments it may be necessary to fit a terminating resistor to the network The terminator a 200Q resistor should be fitted between RX and RX on both the computer and the furthest instrument For two wire networks this resistor should be fitted at the computer end only Only one such terminator should be fitted on each wire pair 4 Wire Connection to host computer TX TX RX RX Com Terminating Resistor Optional Other Device Host Computer Pe me 460 Host Port The above diagram shows the connections for 4 wire RS422 operation This method of connection uses a separate pair of wires for transmission and reception and is the preferred connection method Although called the 4 wire connection a fifth common wire is shown on the diagram This wire should be fitted if at all possible Controller network connection The P460 profiler communicates with its control instruments digitally These instruments are connected to the profiler via the local communications port M55 Issue 1 2 Series 460 User Manual Page 7 Controller P460 Local Port Contr
37. ve addresses in the range 30 to 39 inclusive All external devices in this range will receive setpoint and control terms information from channel 3 One instrument in this address range is designated the channel master controller and it is this controller s measured value which is used to servo start the channel 3 profiler Control instruments for channel 4 must have addresses in the range 40 to 49 inclusive All external devices in this range will receive setpoint and control terms information from channel 4 One instrument in this address range is designated the channel master controller and it is this controller s measured value which is used to servo start the channel 4 profiler Control instruments for channel 5 must have addresses in the range 50 to 59 inclusive All external devices in this range will receive setpoint and control terms information from channel 5 One instrument in this address range is designated the channel master controller and it is this controller s measured value which is used to servo start the channel 5 profiler Control instruments for channel 6 must have addresses in the range 60 to 69 inclusive All external devices in this range will receive setpoint and control terms information from channel 6 One instrument in this address range is designated the channel master controller and it is this controller s measured value which is used to servo start the channel 6 profiler Control instruments with addresses of 70 for high
Download Pdf Manuals
Related Search