Series 90-70 CPU Update Kit, IC697CPU782DU, GFK
Contents
1. release of the PLC CPU module is compatible with Logicmaster 90 70 version 2 04 or later However version 4 01 or later is required to gain access to all of the CPU s features and functionality To work around a compatibility problem with seri al Logicmaster 90 70 the PLC will return 3 42 as its version to all serial Logicmaster 90 70 products WSI and Standard COM release 3 04 and earlier Reference Tables 2 When this CPU module is used with release 4 or later of Logicmaster 90 70 refer ence tables will not be changed during any STORE operation unless the user specifi cally selects storing of reference tables Foreign VME Modules 3 Logicmaster 90 70 Release 4 allows foreign VME modules to be configured for four modes BUS INTERFACE INTERRUPT ONLY FULL MAIL and REDUCED MAIL However the Release 4 CPU module supports only the BUS INTERFACE MODULE mode The other three modes should not be configured Maximum PLC Sweep 4 In systems configured for Genius Bus Redundancy a complete PLC sweep must be executed every 500 ms or less even though it is possible to configure the watchdog timer to higher limits This means that resetting of the watchdog timer with Service Request 8 cannot be done indefinitely Serial Communications 5 The following operational restrictions exist for the Serial Communications feature 1 Serial communications may add up to 5 ms of time to any given sweep This should be taken into account when setting2. the watchdog timer 2 The following procedure is recommended when changing baud rates in the PLC and the WSI board First enter the configuration package and change the baud rate on the PLC then store the new configuration Now power off the PLC and then go to the WSI setup screen and change the WSI baud rate Finally power the PLC back on 3 The link idle time setting in Logicmaster 90 70 Config for Serial Communica tions should not be set to less than 10 seconds otherwise a communications failure will occur when storing the config to the PLC LM90 WSI Attach 6 Donotconnect or disconnect the WSI BTM cable while the PC Workmaster host is powered on This action may cause a running PLC to Stop Expansion Rack ID 7 The expansion racks for the Series 90 70 PLC are shipped with the rack ID strapped for rack 0 the main rack If the rack jumper is not changed the PLC will not recognize the rack at all and may not properly identify the error Important Product Information GFK 0608F Expansion Rack Cable 8 Do not connect or disconnect the expansion rack cable while the CPU is running This will cause the PLC to go to the STOP HALT mode Expansion Rack Power 9 Expansion racks should not be powered up at the same time that the main rack is powered up or they should be powered up after the main rack has completed its power up initialization Memor y Usage 10 Ageneral rule of thumb for memory usage is 48 bytes per I
3. within a program block The EXIT_FOR function provides a way to prematurely terminate the iterations New VME Access Functions 11 The VME_CONFIG_RD and VME_CONFIG_WRT functions allow foreign VME modules to be accessed by one of five methods word byte odd byte only single word and single byte The access method AM code and VME address for the VME module are specified when the module is configured with Logicmaster 90 70 These functions are being offered in addition to the existing VME Read and Write functions Important Product Information GFK 0608F Restrictions and Open Problems 10 11 12 If an expansion rack powers up while the CPU in the main rack is in the RUN mode the slot fault contacts will prematurely indicate that the modules in the expansion rack are not faulted before they complete their power up In a multi rack system false LOSS OF RACK faults may occur when the system loses power If this fault is configured to be fatal the system will power up in STOP mode The SORT function cannot be used in an interrupt block and in another part of the program at the same time If a SORT function is interrupted by an interrupt block that executes a SORT function the SORT in the interrupt block will log a User Ap plication fault but not execute The interrupted SORT in the other part of the pro gram will produce the correct result If a program block that is activated by an I O interrupt calls another progr
4. O point plus register memory in bytes Timer Operation 11 Care should be taken when timers ONDTR TMR and OFDTR are used in sub blocks that are NOT called every sweep The timers accumulate time across calls to the sub block unless they are reset This means that they function like timers oper ating in a program with a much slower sweep than the timers in the main program block For program blocks that are inactive for large periods of time the timers should be programmed in such a manner as to account for this catch up feature Similiar to this are timers that are skipped because of the use of the JUMP instruc tion Timers that are skipped will NOT catch up and will therefore not accumulate time accurately STOP I O SCAN 12 When a Release 1 folder is converted to Release 3 the STOP mode changes from STOP IODISABLEDtoSTOP IOSCAN To change this zoom into the PLC CPU slot in I O configuration and change the STOP mode Large Programs 13 Logic programs that were very close to the maximum size limit in Release 2 may not store to a Release 3 or 4 PLC To work around this you must make the program snal ler Constant Sweep 14 Constant Sweep time when used should be set to about 10 ms greater than the nor mal sweep time to avoid any oversweep conditions when monitoring or performing on line changes with the programmer The smallest valid constant sweep time set ting is 9 milliseconds Window completion faults will occur if t
5. Product Important Product Information March 15 2010 GFK 0608F Read This Information First Series 90 70 PLC CPU Module Update Kit IC697CPU782DU Version 4 02 Hardware Identification CPHA1 44A729676 G01 R12 or later Software Identification EPROM Label Location U72 397 015B 4 02 Location U73 397 016B 4 02 Location U74 397 014B 4 02 Location U75 397 013B 4 02 Replaces IC697CPU782C This is the release of the version 4 02 firmware update kit for the Series 90 70 Model 782 CPU module The purpose of this release is to provide the new functions described under New Features and Functionality Update Stategy An update kit is available for updating IC697CPU782C to release 4 02 Field Update Kit 44A731217 G03 for upgrading IC697CPU782C to IC697CPU782DU Version 4 02 Documentation IPI GFK 0608F Data Sheet GFK 0555 User s Manual GFK 0262D Read this document before installing or attempting to use the Series 90 70 Model 781 PLC CPU Module IC697CPU781DU with your Series 90 70 PLC system For more information refer to GFK 0262 Series 90 70 Programmable Controller Installation manual GFK 0263 Logicmaster 90 Programming Software User s Manual and GFK 0265 Series 90 70 Programmable Control ler Reference Manual Series 90 is a trademark of GE Intelligent Platforms North America Inc Operating Notes Important Product Information GFK 0608F Logicmaster Compatibility 1 This
6. U sharing blocks in hot standby and dual bus configurations The hot standby configuration protects against bus controller failures The dual bus config uration protects against bus controller and media failures Release 4 or later of the Genius Bus Controller is required by this feature BackgroundChecksum 2 The PLC will continuously calculate a checksum over the user s program to ensure the integrity of the program The user can use the Logicmaster 90 70 Configuration software or the Service Request function block to regulate the amount of the check sum that is calculated each sweep C Program Blocks 3 You can now program your applications with Microsoft C 6 00 Program Block calls in the main block and LD program blocks can call program blocks that have been programmed in the C language Up to seven parameter pairs can be passed to the C block Performance Improvements 4 The sweep time impact of the Genius Bus Controller has been reduced For all CPU models the sweep time impact for GBC overhead has been reduced by 50 The sweep impact due to Genius blocks has not changed Important Product Information GFK 0608F The sweep time impact of most function blocks has been improved In particular timers and counters have been improved by 12 and the MOVE function has been improved by 22 User Fault Logging 5 The user can log a fault in the PLC fault table from the ladder program The SVC_REQ function now allo
7. am block a User Application fault will occur and the PLC will go to STOP mode Since there are no tasks that run in the PLC s background window changes made to the Background Window Timer with Logicmaster 90 70 will have no effect When there is no logic stord in a CPU module the Q and M tables will be cleared when the CPU is placed in RUN mode In this context no logic stored means that no program had ever been stored or that the clear function on Logicmaster 90 70 had been used to clear logic and configuration Option modules will not be able to return the completion status for COMM_REQ functions when the PLC has a password set at level 2 If the CPU s toggle switch is moved to STOP and back to RUN while a C block is sending text out the serial port the serial port will stop working The CPU will have to be power cycled to make SNP and C block messages work again When the Bit Sequencer sequences from one step to another the negative transition al contact that corresponds to the original step is not set The transition contact for the new step is set and remains set until the sequencer sequences to the next step This operation is identical to the operation of the previous versions of the CPU firm ware If multiple faults exist in a Series 90 70 remote drop and one of them is corrected a FAULT contact that uses the remote drop s module reference will incorrectly indicate that no fault exists at the remote drop When po
8. he constant sweep setting is not high enough Interaction of Logicmaster 90 70 with Closed Programming Window 15 The Logicmaster 90 70 Sweep Control and Monitor screen cannot be used to change the PLC s Sweep Modes or timers Constant Sweep Time Program Window Times etc while the program window is closed Use Service Requests 1 through 4 to perform these functions Problems Re solved by this Up grade Important Product Information GFK 0608F Also Logicmaster 90 70 cannot be used to change the PLC mode STOP RUN etc while the programming window is closed Use the toggle switch on the CPU module instead Bus Transmitter 16 10 11 12 Bus Transmitter Module version IC697BEM713A should be installed to the right of all other interrupt source modules Genius Bus Controllers Series 90 70 discrete Input mod ules and Programmable Coproccessor Modules to avoid an informational System Con figuration Mismatch Fault Board to right of Rev A BTM from being logged into the fault table and a single scan 50 ms scan time increase from occurring The frequency of this scan increase is 1 to 2 times per hour for single rack systems and increases with additional racks and interrupt sources This condition exists only with the A version of the BTM and has been corrected in the IC697BEM713B and later versions Series 90 30 and 90 70 PLCs will now work on the SNP miltidrop cable when their configurations for par
9. ity are not the same However version 3 03 or later of the Se ries 90 30 PLC is required The PLC no longer ignores the comm buffer size specified by the SNP master device Therefore SNP masters can use comm buffers that are smaller than 8K bytes The T3 and T3 SNP timeouts are now enabled The PLC now responds correctly to the SNP masters s inquiry message The PLC now sends a receive ACK to the SNP master when the PLC requires more than 10 seconds to respond to a request System status bit FST_EXE S121 will no longer appear to be overridden ON when a program block executes an excessive number of recursive calls to itself Smart modules now get logged as Additional Reset or Extra modules in the PLC fault table when power is cycled on the main rack only and the modules are not part of the configuration that was stored from Logicmaster 90 70 The PLC will now power up in STOP NOIO if the toggle switch is in the STOP position and Logicmaster 90 70 had commanded the PLC to STOP NOIO before power down This occurs even when the PLC is configured for STOP IOSCAN The PLC no longer loses communications with an SNP master when the master sends an abort request during a load store operation Serial Logicmaster 90 70 no longer loses communications with the PLC when a fault table is cleared Transitional contacts now work correctly when associated with references in the Q output array of the Shift Left Right and Rotate Left Righ
10. t functions The Mixed Multiply and Divide functions will now log an Indirect Reference Out of Range fault when an indirect reference out of range condition occurs on a double word parameter Important Product Information GFK 0608F New Features and Functionality 13 14 15 16 17 18 19 20 Executing a call to a program block inside a program block that was called by anI O interrupt will now cause a diagnostic application fault instead of crashing the PLC The processing of the interrupt is aborted and the PLC continues to execute in RUN mode The MOD_DINT function now produces the correct result when parameter I1 0 and parameter I2 is gt 32 767 The PLC will now operate correctly when the IN parameter on the Shift Register Word function is a constant PCMs in expansion racks will now power up properly when the expansion rack is power cycled while the main rack maintains power The PLC will no longer fail when the number of declared program blocks is four more than a multiple of eight The PID function s CV output now ramps up down at the expected rate The execution of an I O interrupt no longer sets the wrong I bit when the program logic is stored to the PLC before the configuration is stored to the PLC The PLC no longer allows an OEM key to be set when passwords are disabled Genius Redundancy 1 The PLC will now support Genius Bus Controller redundancy two GBCs in the same CP
11. wer is cycled on an expansion rack in a system that is running a large sweep time when Logicmaster 90 70 is not connected Genius Bus Controllers in that rack may not be properly configured This can be corrected by cycling power on the main and expansion racks When a Release 3 or earlier Genius Bus Controller is present in a PLC but is not present in the configuration stored to the PLC from Logicmaster 90 70 the Bus Controller will log on to the Genius Bus at serial bus address 0 Release 4 or later Bus Controllers will not log on to the bus at all in this situation GE Intelligent Platforms North America Inc Charlottesville Virginia
12. ws the user to define a fault that will place an ASCII text message in the fault table and optionally set a bit in SA memory Single Sweep Debug 6 The PLC now has the ability to execute a single sweep of the user program This provides the user with a tool to check out the execution of the program one sweep at atime This sweep can be executed as a normal sweep or as a first scan sweep Timed Interrupts 7 The PLC will support the execution of program blocks on a timed periodic basis A program block declared in this manner will periodically interrupt the normal sweep to execute one sweep of the program block This feature is very much like the exist ingI Ointerrupt feature except that the program block execution is triggered by a free r unning timer instead of the transition of an input point Array Move Function 8 This function allows the user to extract one or more elements from a data array and copy them to another array It supports arrays of data elements of the following types BYTE INT WORD UINT DWORD and DINT Array Search Function 9 This set of functions allows the user to search an array for a data element that is equal not equal greater than greater or equal less than or less than or equal to a specified value These functions support the same data types that are supported by the Array Move function FOR NEXT Function 10 This function allows the user to iteratively execute any number of ladder logic rungs
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