Hitachi EH-150 manual Example of Calculation

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7. Collection of Temperate Data

7.3 Example of Calculation

The program shown below as an example converts the temperature conversion data in WR0 to BCD 4 digit data in WM6.

In case the temperature is minus, the bit internal output R0 will be turned on.

 

EXT (DM000,WR0000)

 

(1)

 

 

DM000 = DM000 S* 100

(2)

 

 

DM002 =

DM000

S/

4096

(3)

 

 

R0

=

DM002

S<

0

(4)

 

 

ABS (WM004,WM002)

 

(5)

 

 

BCD (WM006,WM004)

 

(6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)Because the calculation with sign is that by double words, extend the word temperature conversion data(WR0) to double word data(stored in DM0).

(2)(3) Calculate by the expression mentioned on previous page. Because the calculation with decimal point (dividing by 40.96) is not possible, multiply the numerator with 100 (2) and then divide by 4,096(3).

(4)When the temperature data (result of calculation) is minus, the R0 is turned on.

(5)Turn to an absolute variable (for plus temperature data, use as it is and for minus temperature data remove the sign to turn it to a plus value.) (Use WM0 because the result of calculation can be incorporated in a word (less than 16 bits).

(6)WM 4 is converted to BCD 4 digits vaule(WM6).

7-4

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Contents Hitachi Programmable Controller Page Limited Warranty and Imitation of Liability Page Safety Precautions Required Prohibited V i s i o n N t e n t T e Table of contents Appendix 12-1 B l e 1 R e f e r e n c e M a n u a l l i s t C u m e n t N t r o d u c t i o nN t e n t s A n t i t y E f o r e U s eE a t u r e s R e c a u t i o n s o n U s eStructure and Name of Each Part Structure and NameplateSpecification SpecificationSpecification list Terminal layout and internal circuit Internal Block Diagram Block DiagramExternal Wiring External WiringSetting switch SettingSetting of temperature range Temperature rage settingG u r e 7 O l l e c t i o n o f T e m p e r a t e D a t aI / O a l l o c a t i o n H7FFF Temperature DataB3 b2 b1 b0 Example of Calculation F8CC 1 Pt100 -50 to +400 ºC range Temperature conversion data1Pt100 -20 to +40 range E a s u r e d T e m p e r a t u r e R a n g e o v e r Error D e t e c t i o n P r o c e s s i n gA m p l e o f p r o g r a m Error Detection ProcessingA i n t e n a n c e a n d I n s p e c t i o n InstallationO u n t i n g O u n t i n g M e t h o dFigure .1 Wire Separation by Conduits or Ducts Precautions on External WiringV i c e X a m p l e o f P r o g r a m m i n gX a m p l e o f P r o g r a m m i n g R003 10-3 Offset error Temperature conversion data Example of Programming 2 Offset adjustmentData Error in All Channels TroubleshootingAllocation Error 41 is indicated in CPU Data Error in a Specific ChannelReference Calculation of External Wiring ResistanceAppendix

EH-150 specifications

The Hitachi EH-150 is a robust and versatile hydraulic excavator, designed to meet the demands of various construction and mining environments. Known for its reliability and advanced technology, the EH-150 is a favorite among contractors looking for efficiency and performance.

One of the standout features of the Hitachi EH-150 is its powerful engine. It is equipped with a fuel-efficient diesel engine that provides ample horsepower for heavy-duty tasks while maintaining lower emissions. This not only ensures compliance with environmental regulations but also contributes to reduced operating costs over time.

The hydraulic system of the EH-150 is engineered for optimal performance. It utilizes advanced hydraulic technologies that allow for precise control and enhanced responsiveness. The system is designed to minimize energy loss, ensuring that more power generated by the engine is converted into effective digging and lifting capabilities. This feature significantly improves productivity on-site.

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In summary, the Hitachi EH-150 hydraulic excavator is a powerful, efficient, and technologically advanced machine. With its robust engine, precise hydraulic system, comfortable operator environment, and real-time monitoring capabilities, the EH-150 stands out as an exceptional choice for those in need of reliable and high-performance excavation solutions. Its durability and user-friendly features further make it a preferred option in the competitive construction and mining industries.
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