BEI Sensors Serial to Parallel Converter Module User Manual

Electronic Modules

Electronic Modules

Divide-By Module

Serial to Parallel Converter for Absolute Encoders

BEI Sensors

BEI Sensors

Features:

• SSI OR RS422 SELECTABLE ON BOARD

• TWO TRANSMISSION RATES TO ACCOMMODATE LONG

CABLE RUNS

• HIGH NOISE IMMUNITY

• CAN BE USED FOR SYSTEM TROUBLESHOOTING

• SAVES INSTALLATION COSTS

• COMPACT PACKAGE

BEI’

s serial-to-parallel converter module takes serial data from any
it to a parallel output. This eliminates the high cost and noise susceptibility of long, parallel cable runs, enabling the simplicity of a serial output encoder
and a low cost twisted pair cable to interface with a standard
troubleshooting.

Serial input, either

SSI

or

RS-422

is easily selectable by a Format Select terminal directly on the board. In
to signal the encoder to provide data. Data is received serially and converted to a parallel format. Clock frequency is selectable by a Speed Select terminal,
again directly on the board. For

In

RS-422

mode, data is received asynchronously from the encoder and converted to a parallel format. Speed Select input is used to set the baud rate:

kBaud for most applications, up to

See the

BEI

specications for Serial Synchronous Interface (S3) and

The module accepts inputs from 5 to
package is

105

mm wide, 78 mm high and only

100

feet or less, the

500

feet;

28 VDC

1.25 MH

115.2 kB

aud for shorter runs below

and provides three output options: V out = V in; V out =

45

mm high and mounts to standard

BEI

Serial Synchronous Interface (S3) or RS-

PLC

or controller. The bright

LED

indicators give visual status for deserialization, testing and

SSI

z mode can be used and for longer distances, up to

100

feet.

RS-422

for additional specications, data format information and timing diagrams.

5 V

; and V out = Open Collector. The compact

DIN

Rail,

EN 50 022, 35

mm X

422

Interface (S1) encoders and converts

mode, the on-board clock generates pulses

500

feet, a

200 kH

z rate is available.

19.2

DIN

rail

7.5

mm, included with the module.

Ordering Information:

Output BEI Model Number BEI Part Number

5 - 28 Volts EM-DR3-SP-5-TB-28V/V 60007-001

5 Volts EM-DR3-SP-5-TB-28V/5 60007-002

Open Collector EM-DR3-SP-5-TB-28V/OC 60007-003

Controller Side: Encoder Side:

Pin Description Notes

D14
thru

DVD Dat a Valid

FMT Format Select

SPD Speed Select

NOTE: On Format, Enable and Speed selects, internal 10KΩ pull-ups to Vs provide default

Logic HI

Parallel Data

D0

EN Output Enable

0V

Outputs

Supply

Common

For the SSI selection under pin FMT, data

is MSB justied.

For the RS422 selection under pin FMT,

data is LSB justied.

Logic LO = Data Valid

Logic HI = Data not valid (transitioning)

Logic HI (N/C) = SSI

Logic LO (0V) = RS422 (Asynchronous)

Logic HI (N/C) = Output active

Logic LO (0V) = Inactive (High Impedance)

SSI: Logic HI (N/C) = 1.25 MHz

Logic LO (0V) = 200kHz

RS422: Logic HI (N/C) = 19.2 kBaud

Logic LO (0V) = 115.2 kBaud

Logic LO available for format and speed
selections

Pin Description Notes

0V

0V

Vs Supply Voltage Provide 5 to 28 volts supply.

D - Data minus Connect to Data – line from encoder

D + Data plus Connect to Data + line from encoder

CL - Clock minus

CL + Clock plus

DIR N/C Leave this disconnected

NOTE: LED indicators on key data and control lines (Logic HI = Red, Logic Lo = Green)

Supply

Common

Supply

Common

7230 Hollister Avenue
Goleta, CA 93117

www.beisensors.com

Connect either 0V pin to power supply

common. This should be the same supply
common as used on the encoder.

Connected internally – see note above

Connect to Clock - line from encoder (SSI

only). If using RS422, then N/C

Connect to Clock + line from encoder (SSI

only). If using RS422, then N/C

Tel: [phone]
Fax: [phone]

Specication No.:02086-001

Rev 10-13