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Calt Multi-turn Absolute Rotary Encoder – 12-bit Resolution, 10mm Shaft

 

Product: Calt Multi-turn Absolute Rotary Encoder

Price: $350.00 encoder only or $750 encoder and display pair

Click Here To Buy Modbus RTU Encoder Only

Click Here To Buy SSI Encoder Only

Click Here To Buy SSI Encoder and Digital Display Pair

Description:

* Resolution of 4096 (12-bit) position codes per revolution

* 4096 multi-turns position reporting

* 10 mm shaft diameter, IP65 rated

* 60 mm body diameter, IP67 rated

* 2400 RPM maximum shaft speed

* -40 degrees C. to +80 degrees C. operating temperature

* Powered with +10 to +30 volts d.c.

* Current consumption approximately 110 mA

* Material Stainless Steel, Aluminum

* Weight approximately 0.86 lbs. (0.3 kg)

* Modbus RTU RS485 interface or SSI output

* Direction and preset position are configurable over Modbus or SSI

* Cable is 8-conductor shielded, 39 inches (1 meter) in length

Modbus RTU RS485 Compatible

The Calt multi-turn absolute rotary encoder is an inexpensive solution to applications requiring multi-turn position retention even when system power is lost or off.

The Modbus RTU version of the encoder acts as a slave (sensor) and communicates with the system master (controller) by way of an open, serial RS-485 protocol. This easy and widely used Modbus RTU protocol is used in Industrial Automation Systems (IAS) and Building Management Systems (BMS) applications.

The $350 price tag when you place your order at Amazon.com makes this Calt Modbus RTU version of the multi-turn encoder an attractive solution for your application.

The Synchronous Serial Interface (SSI) version of the encoder also works well in industrial applications between a master (controller) and a slave (sensor). SSI is based on RS-422 standards and is very popular among sensor manufacturers.

This SSI version of the encoder is also priced at $350 each.
This price is available when you place your order at Amazon.com.

The SSI version of the encoder can be paired with the Calt Digital Display to provide a direct readout of the multi-turn positions. The $750 price tag for the pair when you
place your order at Amazon.com makes this an attractive solution for your application.

Software Modbus RTU Master/Slave Command Examples

Read the measurement data commands :

Host sends 01 04 00 01 00 02 20 0B

Note: 01 is encoder address ,

04H is command word , 00H 01H is the data address , 00H 02H is data length , 20H 0BH is check code.

Slave back : 01H 04H 04H 00H 00H 01H 00H FAH 14H

Note: 01 is encoder address ,

04H is the command word , 04H is the data length , 00H 00H 01H 00H is the data , FAH 14H is check code.

Read parameter command:

Programming permitted line connected with Power+

Host sends 01 03 00 44 00 02 84 1E

Note: 01 is encoder address ,

03H is command word , 00H 44H is the data address , 00H 02H of is data length , 84H 1EH is check code.

Slave back : 01H 03H 04H 00H 00H 00H 00H FBH 84H

Note: 01 is encoder address ,

03H is the command word , 04H is the data length , 00H 00H 00H 00H is the data , FBH 84H is check code.

Modify parameters command:

Programming permitted line connected to Power+

Host sends 01 10 00 44 00 02 04 00 00 00 00 F6 6C

Note: 01 is an encoder address,

10H is the command word, 00H 44H is the data address, 00H 02H is the data length, 04H is the byte length,

00H 00H 00H 00H parameter value

(the first 00H is address bit, the high bit of the second 00H is baud rate, low is the direction,

and the third and fourth 00H 00H is the resolution), F6H 6CH is check code.

Slave back : 01H 10H 00H 04H 00H 02H 01H DDH

Note: 01 is an encoder address ,

10H is the command word , 00H 04H is the data address , 00H 02H is the data length , 01H DDH is check code.

Parameter table

Hex code parameter Hex code parameter
01 4800bps baud rate 05 115200bps baud rate
02 9600bps baud rate 06 Clockwise data increase
03 19200bps baud rate 07 Counterclockwise data increase
04 38400bps baud rate

Cable Wire Color And Signal Name Table (Modbus RTU)

Note: To enable programming of the absolute encoder, connect BLUE wire to +V.

Cable Wire Color And Signal Name Table (SSI Output)

Physical Dimensions And Mounting Holes Pattern

 

Click Here To Buy Modbus RTU Encoder Only

Click Here To Buy SSI Encoder Only

Click Here To Buy SSI Encoder and Digital Display Pair

 

 

Clark Ludahl

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