Encoders:Interface = SSI

Position values

SSI serial interface

The absolute position value beginning with the Most Significant Bit (MSB first) is transferred on the DATA lines in

synchronism with a CLOCK signal transmitted by the control. The SSI standard data word length for singleturn

encoders is 13 bits, and for multiturn encoders 25 bits. In addition to the absolute position values, incremental

signals can be transmitted. See Incremental signals for a description of the signals.


For the ECN/EQN 4xx and ROC/ROQ 4xx rotary encoders, the following functions can be activated via the  programming inputs of the interfaces by applying the supply voltage UP:

• Direction of rotation

Continuous application of a HIGH level to PIN 2 (tmin > 1 ms) reverses the direction of rotation for ascending position values.

 • Zeroing (datum setting) Applying a positive edge (tmin > 12 ms) to PIN 5 sets the current position to zero.


Note: The programming inputs must always be terminated with a resistor (see “Input circuitry of the subsequent



Control cycle for complete data format+

When not transmitting, the clock and data lines are on high level. The internally and cyclically formed position value is stored on the first falling edge of the clock. The stored data is then clocked out on the first rising edge.


After transmission of a complete data word, the data line remains low for a period of time (t2) until the encoder is ready for  interrogation of a new value. Encoders with the SSI 39r1 or SSI 41r1 interface additionally require a subsequent clock pause tR.

If another data-output request (CLOCK) is received within this time (t2 or t2+tR), the same data will be output once again.


If the data output is interrupted (CLOCK = High for t t2), a new position value will be stored on the next falling edge of the clock. With the next rising clock edge the subsequent electronics adopts the data.



SSI serial



Singleturn: SSI 39r1

Multiturn: SSI 41r1

Data transfer

Absolute position values

Data input

Differential line receiver according to EIA standard RS 485

for the CLOCK and CLOCK signals

Data output

Differential line driver according to EIA standard RS 485

for DATA and DATA signals


<p class="MsoNormal"<

Output :Interface = SSI

Baumer Encoder GBM2W.010A102 GBM2W-SSI GBM2W 0 10 A1 02 34Bit Multitrn SSI

Encoder multiturn SSI ; 34 Bit type: GBM2W. Flange/ ...

Sales price: $1,250.00

Baumer BMSV 58K1N 24C 12/00 C0 G

Single Turn Clamping Flange ;10-30VDC; 12 Bit Single Turn; ...

Sales price: $1,250.00

Baumer Multiturn ABS Encoder BMMH 42S1 G05C13 42S1G05C13 10154033 Gray 5VDC SSI

ABSOLUTE Multi Turn 5 V ± 10% HOLLOW 12mmx15 deep blind ...

Sales price: $1,250.00

Heidenhain Dubai SSI 07r1 EQN 1325 2048 5MS16-78K EQN1325 631712-01 631 712-01

Positions/rev: 4096 or 12 bits; 4096 revolutions; "Seal ...

Sales price: $1,250.00

HEIDENHAIN SSI EQN425 EQN 425 512 27S17-58 317941-08 317 941-08 317-941-08

Positions/rev: 4096 or 12 bits; 4096 revolutions; "Seal ...

Sales price: $1,250.00

HENGSTLER 0 568 285 AC58/1213EK.72SPH

- Programmable SSI 12STx13MT 10mm shaft; 10-30VDC; SSI ...

Sales price: $1,250.00

Hengstler SSI ABS Encoder AC58 O 566 034;0 566 034 AC58/1212EF.47SGH 12bit MT

Accuro SSI Absolute Shaft Encoder : SSI Gray( ordercode: ...

Sales price: $1,250.00

IVO ENOCDER GM401.E12 406315 10-30V 4096X4096 GRAY SSI

Brand: Baumer IVO GmbH & Co. KG MPN: IVO ENOCDER GM401.E12 ...

Sales price: $1,250.00

Sick AFS60E-S4AA004096 Absolute Encoder 1037630

4,096(12bit) x 1 Single Turn,Electrical ...

Sales price: $1,250.00
Sales price: $1,250.00

SICK ENCODER ARS60-AAA08192 1031458 SINGLETURN 08192 Step 32V / SSI-Gray Dubai- HOLLOW

SINGLETURN 08192 Steps, 32V / SSI - Gray,Blind hollow ...

Sales price: $1,250.00
Sales price: $1,250.00

Stegmann AG 626 XSR | 4626XSR00000 | 462 6XS R00 000

Multi Turn ABsolute, with SSi INterface

Sales price: $1,999.00

T+R Encoder 100-00240/185 CE-100-M CE-1OO-M CE 100M CE 1OOM CE100M Grey

TRUE ABSOLUTE ENCODER.. Without BATTERY.. Absolute/Multi ...

Sales price: $850.00
Sales price: $1,850.00

TR Electronic CE 65M Art.Nr. 110-00279

SSI Programmable ABS Encoder; SSI (Synchronous Serial ...

Sales price: $1,250.00
Sales price: $850.00