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1. PLC The diagram on the left shows a sinking PLC input To properly connect the external supply connect it so the input provides a path to ground Start at the PLC input Input terminal follow through the input sensing circuit exit at sensing the common terminal and connect the supply to the common terminal The switch between the supply and the input completes the circuit Current flows in the direction of the arrow when the switch is closed By applying the circuit principle above to the four possible combinations of input output sinking sourcing types we have the four circuits as shown below Sinking Input Sinking Output Common Output Switch 3 26 f CLICK PLC Hardware User Manual 4th Ed C0 USER M
2. Chapter 2 Specifications E Standard CPU Modules The Standard CLICK CPU modules are available with different combinations of built in I O types i e DC input DC output DC input relay output and AC input relay output With the 14 built in I O points 8 inputs 6 outputs the CPU can be used as a ready to go PLC control system without any additional I O modules The CPU module just needs 24 VDC but it can be expanded in the future if the need arises They also have an RS 485 port for Modbus and ASCII communications and the battery backup feature which will retain the data in SRAM for 5 years C0 01DD1 D a CUICK gt ci 8 Discrete Koyo x1 Input LED Status Indicators Points RUN c2 stop W XD E E X6 PORT1 a X7 TX1 E E X8 RX1 W Communication c3 TX2 al RX ia Y2 6 Discrete PORTZ Y3 Output m Y4 Points RS 485 TX3 Ys RX3 ie Y6 eon V Built in I O Standard CPUs There are four different configurations of I O types available for the Standard CLICK CPU modules The table below lists the part numbers showing the various I O types Standard CLICK CPUs Discrete Input Type Discrete Output Type External Power 6 DC sink 8 DC sink source 6 DC source 24 VDC required for all CPUs BAC 6 Relay 2 4 CLICK PLC Hardware User Manual 4th Ed CO USER M Chapter 2 Specifications Memory Types The following is the list of t
3. D Input Impedance X3 8 6 8 KQ a 24 VDG X1 2 gt 19 VDC ON Voltage Level X3 8 gt 19 VDC X1 2 lt 4 VDC OFF Voltage Level X3 8 lt 7 VDC me X1 2 4 5 mA Minimum ON Current X3 8 35 MA 7 X1 2 0 1 mA Maximum OFF Current X3 8 0 5 mA X1 2 Typ 5 us Max 20 us OFF to ON Response X3 8 Typ 2 ms Max 10 ms X1 2 Typ 5 us Max 20 us ON to OFF Response X3 8 Typ 3 ms Max 10 ms Status Indicators Logic Side 8 points green LED Commons 2 4 points common Isolated PWR E RUN W ERR W n M STOP PORT1 TX1 E RX1 W TX2 E RX2 W PORT2 RS 4 porra ES TX3 E RX3 W mess NOTE When using Standard CPUs you must use CLICK programming software P E T ier General Specifications Current Consumption at 24VDC 140 mA Terminal Block Replacement Part No C0 16TB Weight 5 0 0z 140 9 Equivalent Input Circuit INPUT Optical Isolator X1 X4 Typical 24 VDC INPUT X5 X8 Typical 0 10 20 30 40 50 55 C 32 50 68 85 104 122 131 F Surrounding Air Temperature C F Optical Isolator a a a a a cee 2 38 CLICK PLC Hardware User Manual 4th Ed CO USER M Chapter 3 Installation and Wiring Wiring Guidelines Power Input Wiring to CLICK Power Supply Connect the AC power source input wiring to the Click power supply the Click power supply voltage and current requirements are listed in chapter 2 If you ar
4. e not using a CLICK power supply be sure to meet that supply s requirements Do not apply power at this time Observe all precautions stated earlier in this manual Warning Once the power wiring is connected secure the terminal block cover in the closed position When the cover is open there is a risk of electrical shock if you accidentally touch the connection terminals or power wiring Power Input Wiring to Click CPU Connect the 24 VDC power source input wiring to the 4 pin 24 VDC input connector located on the bottom panel of the Click PLC Do not apply power at this time Observe all precautions stated earlier in this manual CLICK CPU CLICK Power Supply near fete Y Hl My il 24VDC Cx ov E T CLICK PLC Hardware User Manual 4th Ed C0 USER M I 7 Chapter 3 Installation and Wiring ee Powering I O Circuits In most applications it will be necessary to power the input devices from one power source and to power output loads from another source Loads often require high energy AC power while input sensors use low energy DC If a machine operator is likely to come in close contact with input wiring then safety reasons also require isolation from high energy output circuits For the DC input output circuits you can use the same power source as the CPU module and I O modules However you lose the isolation between the logic circuits and the input output circuits For AC in
5. he memory types that the CLICK PLC system supports See the memory map later in this chapter Data Type Definition Memory Type Symbol Input Point The Discrete Input points are represented by the X symbol Output Point Bit The Discrete Output points are represented by the Y symbol The Control Relay bits are represented by the C symbol These inter nal bits are typically used for ladder program control They do not rep resent any real world inputs or outputs The Timers are represented by the T symbol The Timer status bit is as to indicate when the Current Value of the timer equals its Preset alue The Counters are represented by the CT symbol The Counter status bit is used to indicate when the Current Value of the counter equals its Preset Value The internal System Control Relays represented by the SC symbol System Control Bit are pre defined bits which represent the status of specific system func Relay tions Control Relay Bit es Timer Bit Counter Bit Data Register Integer Single word integer data registers are represented by the DS symbol Ss amp Double word integer data registers are represented by the DD sym Data Register Integer2 bol Data Register HEX Single word Hex data registers are represented by the DH symbol Floating Data Register aa Data Floating Point registers are IEEE format Real number values rep resented by the DF sy
6. mbol as 32 bit words The Input Registers represented by the XD symbol contain groups of Discrete Input points in a 16 bit word format Input Register HEX The Output Registers represented by the YD symbol contain groups of Discrete Output points in a 16 bit word format Output Register HEX The Timer Registers represented by the TD symbol contain the cor Timer Register Integer responding Timer s accumulative value in a 16 bit data register Ss amp The Counter Registers represented by the CTD symbol contain the Counter Register Integer2 corresponding Counter s accumulative value in a 32 bit data register The internal System Data Registers represented by the SD symbol te pre defined words which represent the status of specific system unctions Integer The Text data registers represented by the TXT symbol are used to Store and manipulate ASCII text data CLICK PLC Hardware User Manual 4th Ed CO USER M i 2 13 H Text Chapter 2 Specifications C0 01DD2 D 8 DC Input 6 Sourcing DC Output Micro PLC C0 01DD2 D Built in 1 0 Specifications Inputs Wiring Diagram 2 Inputs per Module 8 Sink Source Operating Voltage Range 24 VDC 24VDC Seles gt Input Voltage Range 21 6 26 4 VDC X1 2 Typ 5 mA 24 VDC Input Current X3 8 Typ 4 mA 24 VDC Maximum Input Current 34 0 mA 264 VDC X1 2 4 7 KQ 24 V
7. put output circuits you don t need to worry about sharing the 24VDC Power Supply CPU Module Input Module Output Module Logic Circuit a j Lose Isolation Input Output Input Output _l Circuit Circuit Circuit Circuit Isolation Boundary To keep the isolation between the logic circuits and the input output circuits we recommend using another power supply for the DC input and output circuits Power Supply CPU Module Input Module Output Module Logic Circuit Keep i Isolation Input Output Input Output aes Circuit Circuit Circuit Circuit CLICK PLC Hardware User Manual 4th Ed CO USER M l 25 Chapter 3 Installation and Wiring eS Sinking Sourcing Concepts Before wiring field devices to the PLC I O it s necessary to have a basic understanding of sinking and sourcing concepts Use of these terms occurs frequently in input or output circuit discussions The purpose of this section is to explain the terms The short definitions are as follows Sinking Path to supply ground or switching ground Sourcing Path to supply source or switching V These terms only apply to DC circuits not AC circuits Input and output points that are either sinking or sourcing can conduct current in only one direction This means it is possible to wire the external supply and field device to the I O point with current trying to flow in the wrong direction in which case the circuit will not operate

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