Out of Stock
  • MESA 7i77 Analog servo interface plus I/O daughtercard - sourcing output version

The 7I77 is daughtercard/breakout board for use with MESA's 25 pin I/O FPGA cards like the 5I25.  The 7I77 is designed for interfacing  up to 6 Axis of analog servo motor drives and also provides 48 isolated I/O points for general purpose field I/O use.  Six +-10V analog outputs and six encoder inputs (all with index) are provided for servo interfacing.  Six floating drive enable outputs allow control of active high or active low drive enables.  Encoder inputs can be individually set for differential or single ended mode.  48 points of isolated field I/O are provided for general control use including limit switch and control panel inputs, coolant enable and tool changer control outputs.  Isolated I/O includes 32 sinking inputs and 16 sourcing outputs. Inputs can sense 5V to 32V signals and the outputs can switch 5V through 28V signals.  Maximum output load is 300 mA.  Outputs are short circuit protected.  In addition to the being able to read digital on/off status of each input,  four input pin voltages are readable with 8 bit resolution, and two MPG encoder inputs are provided as an option on four field inputs.  Field I/O is powered by an isolated 10-32V field power source.  One RS-422 interface is provided for I/O expansion via a serial I/O daughtercard.  All field wiring is terminated in pluggable 3.5 mm screw terminal blocks.


A wiki was developed to help new users to create a basic set up using a 5i25 with a 7i77 using a single axis with a Argon servo drive. A complete wiki was developed http://wiki.eusurplus.com. The basic linuxcnc configuration can be downloaded here http://wiki.eusurplus.com/downloads/machinebuild_sample.zip

Write a review

Please login or register to review

MESA 7i77 Analog servo interface plus I/O daughtercard - sourcing output version

  • 294.72€


Related Products

MESA 7i92TM Anything I/O Ethernet card

MESA 7i92TM Anything I/O Ethernet card

New board to replace 7i92MThe MESA 7I92M is a low cost, general purpose, FPGA based programmable I/O..

113.92€

MESA THCAD-300 High isolation A-D accessory

MESA THCAD-300 High isolation A-D accessory

The THCAD is a frequency to voltage converter type A-D designed for high noise environments like pla..

88.32€

MESA 7i92TH Anything I/O Ethernet card

MESA 7i92TH Anything I/O Ethernet card

New version to replace 7i92MThe MESA 7I92TH is a low cost, general purpose, FPGA based programmabl..

113.92€

MESA 6i25 Superport FPGA based PCIE Anything I/O card

MESA 6i25 Superport FPGA based PCIE Anything I/O card

The MESA 6I25 is a low cost, general purpose, FPGA based programmable I/O card for the PCIE bus...

149.52€

Support plate for Mesa 7i77 and 7i77D

Support plate for Mesa 7i77 and 7i77D

Support plate for Mesa 7i77 cards, with 12 fixing points. Includes screws and brass standoffs...

22.00€

MESA 5i25 Superport FPGA based PCI Anything I/O card

MESA 5i25 Superport FPGA based PCI Anything I/O card

The MESA 5i25 is a low cost, general purpose, FPGA based programmable I/O card for the PCI bus.&..

183.92€

MESA 7i80DB-25 Ethernet Anything I/O card

MESA 7i80DB-25 Ethernet Anything I/O card

The MESA 7I80DB is a low cost, general purpose, FPGA based programmable I/O card with 100 BaseT ..

216.32€

MESA 7i84 Isolated remote field I/O card - sourcing outputs

MESA 7i84 Isolated remote field I/O card - sourcing outputs

Expected availability: 25 November 2022The 7i84 is a remote isolated 32 input and 16 output digital ..

101.12€

Flat cable 25 IDC conductors, gray, 1.27 pitch

Flat cable 25 IDC conductors, gray, 1.27 pitch

Multiples of one meter (1m). Price per meter.number of conductors: 25pitch: 1/2" (1.27mm)colour: gre..

3.80€

DB25M-DB25M cable 1.8m - 2.0m

DB25M-DB25M cable 1.8m - 2.0m

DB25M to DB25M 1:1 parallel port cable 1.8m to 2.0mSmall variations in length can occur between 1.8m..

17.92€

DB25M-DB25M cable 3m

DB25M-DB25M cable 3m

DB25M to DB25M 1:1 parallel port cable 3m..

22.40€

MESA THCAD-5 High isolation A-D accessory

MESA THCAD-5 High isolation A-D accessory

The THCAD is a frequency to voltage converter type A-D designed for high noise environments like pla..

88.32€

MESA THCAD-10 High isolation A-D accessory

MESA THCAD-10 High isolation A-D accessory

The THCAD is a frequency to voltage converter type A-D designed for high noise environments like pla..

88.32€

Network Cable RJ45 Cat5e U/UTP Blue (2m)

Network Cable RJ45 Cat5e U/UTP Blue (2m)

Cable length: 2 mStandard cable: Cat5eCable insulation: U / UTP (UTP)Connector 1: RJ-45Connector 2: ..

2.06€

Network Cable RJ45 Cat5e F/UTP Gray (50cm)

Network Cable RJ45 Cat5e F/UTP Gray (50cm)

- Cable length: 50 cm- Standard cable: Cat5e- Cable insulation: F / UTP (FTP)- Connector 1: RJ-45 Ma..

2.15€

Network Cable RJ45 Cat5e U/UTP Green (1m)

Network Cable RJ45 Cat5e U/UTP Green (1m)

Cable length: 1 mStandard cable: Cat5eCable insulation: U / UTP (UTP)Connector 1: RJ-45Connector 2: ..

1.38€

MESA THCAD2 High isolation A-D accessory

MESA THCAD2 High isolation A-D accessory

The THCAD2 is a frequency to voltage converter type A-D designed for high noise environments like pl..

98.32€

Tags: linuxcnc, linux, cnc, mesa, analog, servo, io