State Industries GFK-0827 manual Shared I/O Data Parameters, Shared I/O Reference Values

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	Table 4. Shared I/O Data Parameters

I/O Parameter	DescriptionandValidEntries


%I Ref Adr	Starting address for redundant %I data region. Range is %I00001...%I12288. The starting
	address is bit aligned. Default value is %I00001.

%I LENGTH	The bit length of the redundant %I data region. Range is 0...12288. Default value is 0.

%Q Ref Adr	Starting address for redundant %Q data region. Range is %Q00001...%Q12288. The
	starting address is byte aligned. Default value is %Q00001.

%Q LENGTH	The bit length of the redundant %Q data region. Range is 0...12288. Default value is 0.

%M Ref Adr	Starting address for redundant %M data region. Range is %M00001...%M12288. The
	starting address is byte aligned. Default value is %M00001.

%M LENGTH	The bit length of the redundant %M data region. Range is 0...12288. Default value is 0.

%R Ref Adr	Starting address for redundant %R data region. Range is %R00001...%R configured limit or
	8K, whichever is smaller (since only 28 Kbytes can be transferred). The %R memory limit
	for the CPU 780 is configurable in the PLC memory configuration screen. The maximum
	limit depends on the available CPU memory. See ºMemory Configurationº later in this
	chapter. The default value is %R00001.

%R LENGTH	The word length of the redundant %R data region. Range is 0...%R configured limit. The
	default value is 0.

%AI Ref Adr	Starting address for redundant %AI data region. Range is %AI00000...%AI configured
	limit. The %AI memory limit for the is configurable in the PLC memory configuration screen.
	The maximum limit depends on the available CPU memory. The default value is %AI00001.

%AILENGTH	The word length of the redundant %AI data region. Range is 0...%AI configured limit.
	The default value is 0.

%AQ Ref Adr	Starting address for redundant %AQ data region. Range is %AQ00000...%AQ configured limit.
	The %AQ memory limit for the is configurable in the PLC memory configuration screen. The
	maximum limit depends on the available CPU memory. The default value is %AQ00001.

%AQ	The word length of the redundant %AQ data region. Range is 0...%AQ configured limit.
LENGTH	Default value is 0.

Table 5. Shared I/O Reference Values

Parameter	Valid Values	DefaultValues


%I Ref Adr	%I00001...%I12288	%I00001

%I Length	0...12288	0

%Q Ref Adr	%Q00001...%Q12288	%Q00001

%Q Length	0...12288	0

%M Ref Adr	%M00001...%M12288	%M00001
%M Length	0...12288	0

%R Ref Adr	%R0001..configuredlimits	%R00001

%R Length	0...PLC memory limits	0

%AI Ref Adr	%AI0001..configuredlimits	%AI00001

%AI Length	0...configuredlimits	0

%AQ Ref Adr	%AQ0001..configuredlimits	%AQ00001

%AQ Length	0...configuredlimits	0

Transfer Data Size

The following table shows the amount of Shared I/O data transferred for each reference type. No more than 20 Kbytes of Input data and 28 Kbytes of Output data can be transferred (an additional 8 Kbytes is reserved for resynchronization transfers).

GFK-0827

Chapter 3 Configuration

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Contents GE Fanuc Automation GFL±002 Content of this Manual Related PublicationsPreface We Welcome Your Comments and SuggestionsContents Chapter System Components Chapter Configuration Chapter Operation System Operation Fault Detection and Control Actions Synchronized Hot Standby CPU Redundancy System Configuration Contents Chapter Introduction Hot Standby CPU Redundancy ProductGFK-0827 Features of the Hot Standby CPU Redundancy Product Benefits of the Hot Standby CPU Redundancy ProductSystems for Hot Standby CPU Redundancy Systems Genius I/O SystemLocal I/O System Cable ConnectionsBasic Hot Standby Operation Control StrategySynchronized Hot Standby CPU Redundancy System Configuration Redundancy CPU Module Redundancy Communications ModuleBumpless Switching Switch to Backup Unit TimeSynchronized CPUs Effect on Scan TimeConfigurable Backup Data Size On-Line ProgrammingOn-Line Repair Configuration Requirements Programming ConsiderationsDefinition of Terms Term DefinitionCommonly Used Acronyms Acronym DefinitionChapter System Components Redundancy CPUWatchdog Timer CPU ArchitectureCapacities for Redundancy CPU, IC697CPU780 CPU Features Redundancy CPU IC697CPUCPU Mode Switch Valid Operating Mode SelectionMemor y Protect Keyswitch Battery ConnectorsCPU Status LEDs Serial Port Connector Expansion Memory BoardExpansion Memory Boards for CPU RCM Features Redundancy Communications ModuleRCM System Status Leds Board OKRCM Connectors Unit Selection PushbuttonLED Status Indicators Bus Transmitter ModuleBTM Connectors Bus Receiver ModuleBus Signal Termination BRM ConnectorsGenius Bus Controller Genius Bus Controller User Features GBC Connectors RacksChapter Configuration Configuring a Hot Standby CPU Redundancy SystemBasic Redundancy System Setup Logicmaster 90 ConfigurationSystem Configuration Redundancy System RequirementsScreens for Fault Category Configuration Monitor or Online modeConfiguration with Logicmaster Handling FoldersConfiguration of a Redundancy CPU Module GFK-0827 Redundant CPU Requirements Normal Sweep Mode Redund TypeBackground Window Constant Window Sweep Mode Constant Sweep ModeCtrl Strgy Fail WaitShared I/O Shared I/O Data Parameters Shared I/O Reference ValuesTransfer Data Size Reference Type ReferenceSize CalculationforNumberofBytesConfiguring a CPU Expansion Memory Board Configuration of a Redundancy Communications Module Configuration Configuration of a Genius Bus Controller Paired GBC ParameterSerial Bus Address Configuring a Primary Redundant PLC Select the Redundancy CPU Module Select an Expansion Memory Board Configure the Redundant Communications Module Configure a Genius Bus Controller Configuration Configure Genius I/O Blocks Configure the Bus Transmitter Module Configuring a Secondary Redundant PLC Change Redund Type GFK-0827 Power-Up Sequence of a Redundant CPU Chapter OperationIncompatible Configurations Resynchronization of the Redundant CPU Hot-Standby Redundancy Control Strategy Synchronous Scan First Data Transfer %I, %AI and SynchronizationData Transfer from Backup Unit to Active Unit Switching Control to Backup Unit Second Data Transfer %Q, %AQ, %R, and %MRole Switch Svcreq References for CPU Redundancy Definition for% S Reference for Redundancy StatusRedundancy CPU Considerations RUN Disabled Mode Differences in Operation for CPURUN/ENABLED Locrdy Locact Remrdy Remact Configuration of Fault Actions Stop to RUN Mode Transition Background Window TimeWords per Sweep = Timed Contacts Ovrpre %S ReferenceGenius Bus Controller Switching Fault Detection Fault CategoriesChanging Fault Category Actions PLC Fault Table Fault Zoom Help Text for Redundancy Error CodesFaulting RCMs, Losing Links, and Terminating Communications GFK-0827 Fault Actions in a CPU Redundancy System Maskable Fault Group DescriptionsMaskable Fault Group Actions UserConfigurableNon-Maskable Fault Group Descriptions Non-Maskable Fault Action DescriptionsOn-Line Repair Maintaining Parallel Bus TerminationOn-Line Repair Recommendations Power Supply RacksCentral Processor Unit Redundancy Communications Module and CablesRedundancy Communications Link Failures Bus Transmitter ModuleGenius Bus Controller Genius Bus GeniusBlocksAppendix Redundancy Alternatives Redundancy AlternativesRedundancy Option Key See Table RedundancyOptions PLCSeries 90-70 Redundancy Through Application Logic Index Index Index Index Index