Toshiba PROSEC T3H user manual Operation, Asv ← Isv

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2. Expanded Functions

B+8 Initial status STS

F			C	8				4				0

Initial operation mode 00 : Manual mode

01 : Auto mode

10 : Cascade mode

11 : (Reserve)

Direct / reverse selection

		0 : Direct
		1 : Reverse
B+9	MV upper limit MH (-25.00 to 125.00 %)	Data range: -2500 to 12500
B+10	MV lower limit ML (-25.00 to 125.00 %)	Data range: -2500 to 12500
B+11	MV differential limit DMV (0.00 to 100.00 %/∆ t)	Data range:	0 to 10000
B+12	Control interval setting n (1 to 32767 times)	Data range:	1 to 32767
	Executes PID every n scan. Therefore, control interval ∆ t = n ⋅ constant scan interval
	(It is treated as n = 1 when n ≤ 0)
C	Manipulation value MV (-25.00 to 125.00 %)	Data range: -2500 to 12500
C+1

:Internal work area

C+9

Operation

1. When the instruction input is OFF:
Initializes the PID3 instruction.
Operation mode is set as specified by B+8.	A+5 bit 0, 1 ← B+8 bit 0, 1
Auto mode SV is set as specified by B+4.	ASV ←	ISV
Manual mode MV is set as current MV.	MMV ←	MV
Internal calculation data is initialized.
MV remains unchanged.

2.When the instruction input is ON:

Executes PID calculation every n scan which is specified by B+12. The following operation modes are available according to the setting of A+5.

•Auto mode

This is a normal PID control mode with ASV as set value.

Set value differential limit DSV, manipulation value upper/lower limit MH/ML and differential limit DMV are effective.

Bump-less changing from auto mode to manual mode is available. (Manual mode manipulation value

MMV is over-written by current MV automatically. MMV ← MV)

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Contents USER’S Manual Important Information Hazard Classifications General InformationWiring Safety Precautions InstallationOperation Maintenance Safety Label Vac About This ManualTerminology T3 manualsContents Prosec T3H Section T3H Overview Introducing the T3H Differences between T3H and T3 Two types of T3H CPU modules are available T3H components CPU moduleRAM/ROM switch Mode control switchStatus LEDs IC memory card slot Battery coverProgrammer port Computer link portExpansion interface module T3H CPU CH1 CH2CPU Power supply module RackExpansion cable Following types of I/O modules are available O moduleAscii Data transmission moduleModule internal current consumption TOSLINE-S20LPSpecifications Functional specifications SFCRAS Instruction execution speed Dtst TeorTenr TestTrst SETRST TsetTAN PID2SIN COSInstruction execution speed cont’d Shown below Section Expanded Functions System operation Auto-RUN / Standby selection Timer interrupt intervalSaving the sampling trace condition Expanded registers External I/O registerAuxiliary register Link register TimerLink Global Special register File registerSEND/RECV Expanded FunctionsTOSLINE-S20 Expanded Functions Starting register Expanded file register data read MRADR S T Expanded file register data Write MWExpanded Functions TOSLINE-S20LP loop support Ethernet support Instructions Double-word multiplication and division D∗ Expanded Functions DSV Essential PID PID3Algorithm Control block diagramParameter details ASV ← ISV OperationExpanded Functions Floating point essential PID FPID3 Digital filter PVn = 1− FT⋅ PVC+ FT⋅ PVn − Here ≤ FT ASV differential limit DSV 0 to 100 %/∆ t Data range +1 ⋅C Expanded Functions Expanded data transfer Xfer Type Transfer parameter tableCPU register ↔ Expanded F register IC memory card CPU register ↔ S20/S20LP scan memory CPU register ↔ Eeprom D register When the data writing address range exceeds page boundary MID Network data send SendExpanded Functions S20LP T3H self-station RW100 RW101 RW227 Network data receive Recv Expanded Functions H0A Expanded Functions Prosec T3H Toshiba Corporation