Further Information

about position encoders and about the bidirection EnDat interface can be found on the Homepage of Dr. JOHANNES HEIDENHAIN GmbH.

: SEA cRIO EnDat Module

The SEA cRIO EnDat module allows communication between the CompactRIO chassis and Heidenhain EnDat encoders. EnDat encoders support position monitoring and position control loops.

The EnDat technology offers a serial differential bus protocol with added safety checks for secure position values. Three independent channels can be simultaneously captured. Position values are read with FPGA reliability and speed at a maximum data rate of 38 kHz for a whole position value with additional information.

EnDat 2.1 and EnDat 2.2 encoders are supported.

Module cannot be used with National Instruments CompactDAQ. At current the driver software supports only one EnDat module per CompactRIO chassis.

Function

Technical Data

EnDat - Functions
# EnDat ports M 12 connector		3
Technical data
Supply voltage backplane [V]		5
Supply current backplane [mA]		50
External frontpanel power connector [V/mA]		7-30 / 500
Sensor power supply [V/mA] per port		5.25 / 350
Environment
Operating temperature range [° C]		-40 to 70
Relative humidity [%] non condensing		10 - 90
Size [mm]		80 x 23 x 88
Weight [g]		180