Open optical encoders comparison table

Renishaw provides a wide range of open optical linear, partial arc and rotary (angle) encoders. Our comparison tables help you to compare the technical specifications of our absolute and incremental encoder systems.

For further information and product options, please visit the encoder product configurator.

Optical linear readheads

For further information, please refer to the relevant data sheets.

Absolute

Product name

Outputs (resolutions)

Scale options

Scale length

Scale accuracy

Maximum speed

Readhead size
(L x W x H)

RESOLUTE™

Digital: N/A
Analogue: N/A
Serial: BiSS® C, FANUC, Mitsubishi, Panasonic, Siemens DRIVE-CLiQ®, Yaskawa
(1 nm to 100 nm)

RTLA30/FASTRACK, RSLA30, RELA30, RKLA30-S

RTLA30: up to 21 m

RSLA30: up to 5 m
RELA30: up to 1.5 m

RKLA30-S: up to 21 m

Up to ±1 µm/m

100 m/s

36 mm x 16.5 mm x 17.2 mm

EVOLUTE™

Digital: N/A
Analogue: N/A
Serial: BiSS C, Mitsubishi, Panasonic, Yaskawa

RTLA50/FASTRACK

Up to 10.02 m

±10 µm/m

100 m/s

36 mm x 16.5 mm x 17.2 mm

Incremental

Product name

Outputs (resolutions)

Scale options

Scale length

Scale accuracy

Maximum speed

Readhead size

(L x W x H)

QUANTiC™

Digital: RS422 (10 µm to 50 nm)

Analogue: 1 Vpp (40 µm)

Serial: N/A

RTLC40-S,

RTLC40/FASTRACK, RTLC40H-S, RTLC40H/FASTRACK, RKLC40-S/RKLC40H-S

RTLC40-S/RTLC40, RTLC40H-S/RTLC40H: up to 10 m*

RKLC40-S/RKLC40H-S: up to 20 m*

* (longer on request)

RTLC40-S/RTLC40: up to ±15 µm/m

RTLC40H-S/RTLC40H: up to ±5 µm/m

RKLC40-S: ±15 µm/m

RKLC40H-S: ±5 μm/m

24 m/s

35 mm x 13.5 mm x 10 mm

TONiC™

Digital: RS422 (5 µm to 1 nm)

Analogue: 1 Vpp (20 µm)

Serial: N/A

RTLC20-S,

RTLC20/FASTRACK,

RKLC20-S, RELM20, RSLM20

RTLC20-S/RTLC20: up to 10 m*

RKLC20-S: up to 20 m*

RELM20: up to 1.5 m

RSLM20: up to 5 m

RTLC20-S/RTLC20: ±5 μm/m

RKLC20-S: ±5 μm/m

RELM20: ±1 µm/m

RSLM20: up to ±1.5 μm (dependent upon length)

10 m/s

35 mm x 13.5 mm x 10 mm

VIONiC™

Digital: RS422 (5 µm to 2.5 nm)

Serial: N/A

RTLC20-S,

RTLC20/FASTRACK, RKLC20-S, RELM20, RSLM20

RTLC20-S/RTLC20: up to 10 m*

RKLC20-S: up to 20 m*

RELM20: up to 1.5 m

RSLM20: up to 5 m

* (longer on request)

RTLC20-S/RTLC20: ±5 μm/m

RKLC20-S: ±5 μm/m

RELM20: ±1 µm/m

RSLM20: up to ±1.5 μm (dependent upon length)

12 m/s

35 mm x 13.5 mm x 10 mm

ATOM DX™

Digital: RS422 (10 µm to 2.5 nm)

Serial: N/A

RTLF, RCLC, RKLF

RTLF: up to 10 m (longer on request)

RCLC: up to 130 mm

RKLF: up to 10 m

RTLF20/RTLF40H: ±5 μm/m

RTLF40: ±15 μm/m

RCLC: ±3 µm/m

RKLF20/RKLF40H: ±5 µm/m

RKLF40: ±15 μm/m

20 m/s

20.5 mm x 12.7 mm x 10.85 mm

(20.5 mm x 12.7 mm x 7.85 mm for top exit variant)

ATOM™

Digital: RS422 (10 µm to 1 nm)

Analogue: 1 Vpp (20 µm and 40 µm)

Serial: N/A

RTLF, RCLC, RKLF

RTLF: up to 10 m (longer on request)

RCLC: up to 130 mm

RKLF: up to 10 m

RTLF20/RTLF40H: ±5 µm/m

RTLF40: ±15 µm/m

RCLC: ±3 µm/m

RKLF20/RKLF40H: ±5 µm/m

RKLF40: ±15 μm/m

20 m/s

20.5 mm x 12.7 mm x 8.35 mm

(20.5 mm x 12.7 mm x 7.3 mm for FPC version)

Optical partial arc readheads

For further information, please refer to the relevant data sheets.

Absolute

Product name	Outputs (resolutions)	Scale options	Scale length	Scale accuracy	Maximum speed	Readhead size (L x W x H)
RESOLUTE™	Digital: N/A Analogue: N/A Serial: BiSS C, FANUC, Mitsubishi, Panasonic, Siemens DRIVE-CLiQ, Yaskawa (1 nm to 100 nm)	RKLA30-S	RKLA30-S: up to 21 m	Up to ±1 µm/m	100 m/s	36 mm x 16.5 mm x 17.2 mm

Incremental

Product name	Outputs (resolutions)	Scale options	Scale length	Scale accuracy	Maximum speed	Readhead size (L x W x H)
QUANTiC™	Digital: RS422 (10 µm to 50 nm) Analogue: 1 Vpp (40 µm) Serial: N/A	RKLC40-S/RKLC40H-S, RKLR40-S, RKLR40H-S	Up to 20 m (longer on request)	RKLC40-S: ±15 µm/m RKLC40H-S: ±5 μm/m RKLR40-S: ±15 µm/m RKLR40H-S: ±5 μm/m	24 m/s	35 mm x 13.5 mm x 10 mm
TONiC™	Digital: RS422 (5 µm to 1 nm) Analogue: 1 Vpp (20 µm) Serial: N/A	RKLC20-S/RKLR20-S	Up to 20 m (longer on request)	±5 μm/m	10 m/s	35 mm x 13.5 mm x 10 mm
VIONiC™	Digital: RS422 (5 µm to 2.5 nm) Serial: N/A	RKLC20-S/RKLR20-S	Up to 20 m (longer on request)	±5 μm/m	12 m/s	35 mm x 13.5 mm x 10 mm
ATOM DX™	Digital: RS422 (10 µm to 2.5 nm) Serial: N/A	RKLF40	Up to 20 m (longer on request)	±15 μm/m	20 m/s	20.5 mm x 12.7 mm x 10.85 mm (20.5 mm x 12.7 mm x 7.85 mm for top exit variant)
ATOM™	Digital: RS422 (10 µm to 1 nm) Analogue: 1 Vpp (20µm and 40 µm) Serial: N/A	RKLF40	Up to 20 m (longer on request)	±15 µm/m	20 m/s	20.5 mm x 12.7 mm x 8.35 mm (20.5 mm x 12.7 mm x 7.3 mm for FPC version)

Optical rotary readheads

For further information, please refer to the relevant datasheets.

Absolute

Product name

Outputs (resolutions)
(See relevant datasheet for details of angular resolutions)

Scale options

Ring/disc diameter

System accuracy (depending on ring diameter)

Maximum speed (depending on ring size and resolution)

Readhead size
(L x W x H)

RESOLUTE™

Digital: N/A
Analogue: N/A
Serial: BiSS C, FANUC, Mitsubishi, Panasonic, Siemens DRIVE-CLiQ, Yaskawa
(18 bit to 32 bit)

RESA30, REXA30

RESA30: 52 mm to 550 mm

REXA30: 52 mm to 417 mm

RESx rings: ±4.28 to ±0.41 arc seconds
REXx rings: ±4.28 to ±0.41 arc seconds
(typical installed accuracy with 2 readheads: up to ±1 arc second )

100 m/s
(RESA30: up to 36 000 rpm,
RESA30 with RESOLUTE ETR: 18 000 rpm, REXA30: 8 500 rpm)

36 mm x 16.5 mm x 17.2 mm

Incremental

Product name	Outputs (resolutions) (See relevant datasheet for details of angular resolutions)	Scale options	Ring/disc diameter	System accuracy (depending on ring/disc size)	Maximum speed (depending on ring/disc size and resolution)	Readhead size (L x W x H)
QUANTiC™	Digital: RS422 (10 µm to 50 nm) Analogue: 1 Vpp (40 µm) Serial: N/A	RESM40	52 mm to 550 mm	±4.6 to ±0.5 arc seconds	24 m/s (up to 8 800 rpm)	35 mm x 13.5 mm x 10 mm
TONiC™	Digital: RS422 (5 µm to 1 nm) Analogue: 1 Vpp (20 µm) Serial: N/A	RESM20, REXM20	RESM20: 52 mm to 550 mm REXM20: 52 mm to 417 mm	RESx rings: ±4.3 to ±0.5 arc seconds REXx rings: ±4.3 to ±0.5 arc seconds (typical installed accuracy with 2 readheads: up to ±1 arc second )	10 m/s (up to 3 673 rpm)	35 mm x 13.5 mm x 10 mm
VIONiC™	Digital: RS422 (5 µm to 2.5 nm) Serial: N/A	RESM20, REXM20	RESM20: 52 mm to 550 mm REXM20: 52 mm to 417 mm	RESx rings: ±4.3 to ±0.5 arc seconds REXx rings: ±4.3 to ±0.5 arc seconds (typical installed accuracy with 2 readheads: up to ±1 arc second )	12 m/s (up to 4 400 rpm)	35 mm x 13.5 mm x 10 mm
ATOM DX™	Digital: RS422 (10 µm to 2.5 nm) Serial: N/A	RCDM	17 mm to108 mm	40 µm: ±19.7 to ±3.3 arc seconds 20 µm: ±9.1 to 3.1 arc seconds	20 m/s (up to 29 300 rpm)	20.5 mm x 12.7 mm x 10.85 mm (20.5 mm x 12.7 mm x 7.85 mm for top exit variant)
ATOM™	Digital: RS422 (10 µm to 1 nm) Analogue: 1 Vpp (20 µm and 40 µm) Serial: N/A	RCDM	17 mm to108 mm	40 µm: ±19.7 to ±3.3 arc seconds 20 µm: ±9.1 to ±3.1 arc seconds	20 m/s (up to 29 300 rpm)	20.5 mm x 12.7 mm x 8.35 mm (20.5 mm x 12.7 mm x 7.3 mm for FPC version)

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