Digital Link Drive Interface Unit (DL-DIU)

The Digital Link Drive Interface Unit (DL-DIU) enables Digital Link control of an analog drive. It provides communication ports that can be used for an MMC Smart Drive or S200-DSL drive, an MMC Controller, or an accessory such as a Slice I/O Coupler or another DL-DIU. It also provides a port for powering and controlling an analog drive, and ports for I/O and power.

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Provides Digital Link control of an Analog Drive

Provides a +/-10Vdc Analog Input

Part Number


Input voltage

20 VDC to 30 VDC

Input power

100ma typical

Operating temperature range

5°C to 55°C (41°F to 131°F)

Storage temperature range

-40°C to 85°C (-40°F to 185°F)


5 to 95%, non-condensing

Physical size

1.125" wide x 6.0" high x 4.0" deep 28.57 mm x 152.4 mm x 101.6 mm

Vibration (per IEC 68-2-6)

10-57 Hz (constant amplitude = .15 mm)57 - 2000 Hz (acceleration = 2 g)

Shock (per IEC 68-2-27)

Four shocks per axis (15g/11 msec)

Axis Port Analog Output

Output channels



16 bits

Output voltage range

±10 VDC

Maximum output current (1K O load)

±10 mA

Power on output voltage

0 V ±100 mV

Scan loss output voltage

0V ±100 mV


±0.375% of FSR Drift ± 50ppm/°C

Update rate

125 µsec

Axis Port Encoder Input

Input channels


Input receiver

Maxim 3098 A quad B differential RS422 receiver

Recommended Encoder Drivers

7272, 75183, 8830, 75114, 9614, 26LS31 (or equivalent)

Encoder signals

Differential quadrature

Input threshold

±750 mV

Input termination

150 ohm, provided on board

Maximum input voltage

5 V

Maximum input signal frequency

720 Khz (2.88 M feedback unit count rate)

I/O Port Analog Input

Input channels




Input voltage range

±10.24 V


±1% of FSR

Sample rate

125 µsec

Common mode filter

3 dB @ 122 Khz

Differential mode filter

3 dB @ 1826 Hz

Axis and I/O Port Inputs


Axis I/O Ports Inputs: Sink or Source (1) I/O Port Input: Sink or Source (1) Operates with IEC Type 1 inputs (per IEC 1131-2).

Input voltage

Nominal 24 VDC, maximum 30 VDC

Guaranteed on voltage

15 VDC

Guaranteed off voltage


Turn on/off time

1 ms

Fast Input (Input 1, located on J1, pin 5)

50 µsec turn-on, 400 µsec turn-off

Axis Port DC Outputs

Number of outputs



The set of axis outputs can be configured as sourcing or sinking.

Maximum current

100 mA per output

Voltage range

24 VDC nominal, 5 to 30 VDC range

Scan loss response

Outputs turn off


US Production