G4 Analog I/O Modules
About Opto 22 G4 Analog I/O Modules
Introduced in 1990, Analog G4 I/O Modules offered a more compact footprint than the earlier G1 and added an LED status indicator on the top of the module. Thousands of customers continue to rely on G4 discrete and analog I/O in their legacy Optomux and mistic systems. G4 analog I/O provides complete electrical channel-to-channel isolation. Isolation eliminates troublesome ground loop problems. Wide variety of signal inputs include RTD, ICTD, voltage, current, thermocouple, and TPO.
Ways to use G4:
1. As industrial I/O for a Raspberry Pi.
Yes, you can sense and switch industrial signals with your Raspberry Pi. Use the Pi with G4 digital I/O for prototyping and in areas that do not require industrially hardened control equipment.
2. For more robust SNAP PAC system sensing and switching.
Use a SNAP TEX breakout board to expand the capability of your SNAP high-density digital (HDD) I/O modules. The SNAP-UDC-HDB-G4 breakout board holds up to 32 G4 digital input or output modules to match the SNAP HDD input or output module you have. You get the 3 amp per channel ability of the G4 where you need it, mixed in with analog, digital, and serial modules on a compact SNAP PAC rack.
3. With E1 and E2 brains in a legacy Optomux system.
E1 and E2 brains replace the obsolete B1 and B2 brains, work with G4 I/O, and provide communications over both Ethernet and serial networks. E1s and E2s are also designed for customers who need to upgrade Optomux systems to use Ethernet networking, while preserving existing I/O racks, modules, and field wiring.
View All G4 Analog I/O Modules
G4AD10
The G4AD10 module provides a single channel of optically-isolated temperature-to-digital conversion. This module also includes complete electrical channel-to-channel isolation, which eliminates troublesome ground loop problems.
G4 100 0hm Platinum RTD Analog Input
G4AD3
The G4AD3 module provides a single channel of transformer and optically isolated current-to-digital conversion. The nominal input range is 4 to 20 milliamps, with an under/over-range capability from less than 3 milliamps to greater than 35 milliamps.
G4 4 to 20 mA Analog Input
G4AD8
The G4AD8 provides a single channel of transformer and optically isolated temperature-to-digital conversion from a Type K thermocouple input. This module also includes complete electrical channel-to-channel isolation, which eliminates troublesome ground loop problems.
G4 Type K Thermocouple Analog Input
G4DA3
The G4DA3 provides a single channel of transformer and optically isolated digital-to-current conversion for 4-20 mA current loops. The isolated loop supply can be provided by the module, eliminating the need for you to provide the loop power supply (typically 15-48 V) and associated wiring, barrier strips, and so on.
G4 4-20 mA Analog Output
Training and Support
With three levels of after-sales customer support to choose from, you can always access the expert assistance you need to gain maximum efficiency from your equipment. Our technical engineers, each with 30+ years’ experience, are on hand to offer guidance and advice. Technical training provision includes in-person facilitated workshops and practical courses.