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SmartHardware RS-485, Manual, Page: 7 / 12

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SmartHardware RS-485 Manual Download Page 7

SmartHardware 

User Guide STR1000008X 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

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al

og

 I

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pu

t 

1

A

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og

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pu

t 

5

A

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al

og

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pu

t 

4

A

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8

G

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=

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5 

 9

-2

4

V

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r

G

n

d

R1

B

A

Gnd

R2

R3

(560ohm)

(560ohm)

(120ohm)

+

5

V

RS-485

Jp1

Jp3

Jp2

JR

2

JR

2

JR

1

JR

1

JR

3

JR

3

RS-485

CPU

9-

2

4V

 t

o 

5V

B A G

+5V

(Load Defaults)

. .

. .

Summary of Contents for RS-485

Page 1: ...SmartHardware User Guide STR1000008X 1 STR1000008X RS 485 smart programmable controller Ver 1 3 2014 Software ver 1 1 2013 ...

Page 2: ...ounter 4 bytes User Data RAM 4 bytes User Data EEPROM 4 bytes Analog Inputs 8 0 10 V Rin 91k step 0 01 V 10bit ADC 0 20 mA Rsh 500 step 0 02 mA Power Supply 5V 30mA or 9 24V 20mA for 12V Dimensions 162 x 31x 20 mm Dimensions for installation 152 x 21 5 mm Weight 38 33gr v 2 1 Compared to version v2 0 was added protection for reversal of the power supply of controller Changed the scheme of the anal...

Page 3: ...SmartHardware User Guide STR1000008X 3 ...

Page 4: ...SmartHardware User Guide STR1000008X 4 ...

Page 5: ...SmartHardware User Guide STR1000008X 5 v 2 0 ...

Page 6: ...SmartHardware User Guide STR1000008X 6 ...

Page 7: ...TR1000008X 7 Analog Input 1 Analog Input 5 Analog Input 4 Analog Input 8 GND GND V 5 9 24V or Gnd R1 B A Gnd R2 R3 560ohm 560ohm 120ohm 5V RS 485 Jp1 Jp3 Jp2 JR2 JR2 JR1 JR1 JR3 JR3 RS 485 CPU 9 24V to 5V B A G 5V Load Defaults ...

Page 8: ...n normal mode The blue LED will flash briefly Check the PDF file with commands for a full explanation page 3 IMPORTANT Do not change jumpers for power when voltage for power is applied to the controller The controller is powered by a switching converter for 5V It might pulses from switching the jumper to erase the software built into the microcontroller Jumpers should be switched ONLY when the con...

Page 9: ...You can connect up to 32 controllers R1 and R3 must be calculated according line Into account must take the resistance of the wires By default R1 R3 560 ohms R2 120 ohms When jumper set resistor connected to line How to calculate the values of R1 and R3 with 120 ohm resistors at both ends Example 10 controllers and 5 V supply Each RS 485 node has a load impedance of 12K ohms 10 nodes in parallel g...

Page 10: ...t termination R1 R3 4 3K ohms Bias resistors can be placed anywhere in the network or can be split among multiple nodes The parallel combination of all bias resistors in a system must be equal to or less than the calculated biasing requirements We produce these controllers For your convenience we can solder other resistors We can leave blank the space and you can solder the resistors that you need...

Page 11: ...hod of connecting to network Principle of operation When operating the controller uses a buffer of 40 bytes maximum for each command While performing a command it may receive next Before receiving the last byte of the second command the first must be finished If not then the second will be ignored When a command is sent to reprogram something must be borne in mind that one byte programming take ti...

Page 12: ...r to RS 485 line 4 Program new controller number 5 Program new analog inputs number for direct access 6 Program mode V A for analog inputs 7 Controller is ready for use 8 You can connect next controller You can use any transmitter for the management of this controller It is enough to maintain the required speed and input impedance is complies with the network Thank you for using our products For c...

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