The 7I84U is a remote isolated 32 input and 16 output digital I/O card. The 7I84U is identical to the 7I84 except that it has universal sourcing/sinking/push-pull outputs. The 16 outputs are rated 5VDC to 28VDC with 500 mA maximum current capability. Outputs have per output short circuit protection, overvoltage clamps and per driver chip thermal shutdown. The 7I84Us outputs are suitable for driving relays, contactors, solenoids, and other medium power inductive or resistive loads. The 7I84U uses field power of 5VDC to 28VDC and sets its default input threshhold to 50% of field power supply voltage with 10% hysteresis for noise immunity. 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. Two MPG encoder inputs are provided as an option on four field inputs. Field voltage can be split so that each half of the 7I84U uses a different voltage source for the outputs and reference voltage for the inputs, allowing mixed voltage I/O support. The inputs, outputs, and field power are galvanically isolated from the communications link. The RS-422 interface at 2.5 MBaud is compatible with HostMot2s SSLBP smart serial interface which can support as many as 32 7I84 cards for a total of 1024 inputs and 512 outputs with real time update rates up to 5 KHz. 3.5 mm screw pluggable screw terminals are used for all isolated I/O. Unlike the 7I84, the 7I84U does no require flyback diodes on inductive loads even at full 500 mA loads.
Support Documents | |
Manual | Download Support Manual |
Support Software | Download v.14 Serial Remote I/O card firmware |
7I84U Isolated remote field I/O card - Sourcing/Sinking outputs
- Brand: Mesa Electronics
- Product Code: 7I84U
- Availability: 1
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US$79.00
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- 10 or more US$63.00
- 25 or more US$60.00
- 100 or more US$57.00