GE IC676 Modules – IC676PBI008 IP67 Input Block

Technical Dossier

Product Details And Specifications

GE IC676 Series Technical Notes

The Evolution of IC676 Architecture

The IC676 series was introduced as part of GE Fanuc's VersaMax distributed I/O expansion in the late 1990s, designed to address the growing demand for IP67-rated field I/O that could be mounted directly on machinery without enclosures. Early revisions used a proprietary GE Genius Bus backplane protocol, limiting interoperability to GE-native controllers. Subsequent hardware revisions introduced Profibus-DP network adapters (IC676PBS001, IC676PBS002), enabling integration with Siemens S7 and other third-party PLCs — a significant architectural shift that broadened the platform's deployment scope.

The transition from Genius Bus to open fieldbus protocols (Profibus-DP, DeviceNet) represented the primary architectural evolution of the IC676 line. Later catalog additions introduced analog I/O blocks (IC676ALG series) alongside the original discrete I/O blocks, extending the platform's functional range. As of the mid-2010s, GE (subsequently acquired by Emerson under the Automation Solutions portfolio) transitioned active development to the VersaMax Nano and VersaMax Micro platforms, placing IC676 in a sustained-support lifecycle. Compatibility between IC676 field blocks and current VersaMax network adapters remains intact, allowing mixed-generation system operation during phased upgrades.

IC676 Full Catalog & Functionalities (SKU List)

Discrete Input Blocks

• IC676PBI008: IP67 24VDC discrete input block, 8-point, M12 connectors, Genius Bus interface
• IC676PBI016: IP67 24VDC discrete input block, 16-point, M12 connectors, Genius Bus interface
• IC676PBI032: IP67 24VDC discrete input block, 32-point, M12 connectors, Genius Bus interface
• IC676PBI008A: IP67 24VDC discrete input block, 8-point, revised firmware revision A
• IC676PBI016A: IP67 24VDC discrete input block, 16-point, revised firmware revision A

Discrete Output Blocks

• IC676PBO008: IP67 24VDC discrete output block, 8-point, 2A per point, M12 connectors
• IC676PBO016: IP67 24VDC discrete output block, 16-point, 0.5A per point, M12 connectors
• IC676PBO032: IP67 24VDC discrete output block, 32-point, 0.5A per point, M12 connectors
• IC676PBO008A: IP67 24VDC discrete output block, 8-point, 2A per point, revision A hardware

Analog I/O Blocks

• IC676ALG104: IP67 analog input block, 4-channel, 4–20mA / 0–10V selectable, 12-bit resolution
• IC676ALG204: IP67 analog output block, 4-channel, 4–20mA / 0–10V selectable, 12-bit resolution
• IC676ALG108: IP67 analog input block, 8-channel, 4–20mA input, 12-bit resolution

Network Adapters / Communication Modules

• IC676PBS001: VersaMax IP67 Profibus-DP network adapter, slave mode, supports up to 32 I/O blocks per drop
• IC676PBS002: VersaMax IP67 Profibus-DP network adapter, enhanced diagnostics, DPV1 support
• IC676GBA001: VersaMax IP67 Genius Bus adapter, interfaces IC676 field blocks to GE Genius Bus network
• IC676DNM001: VersaMax IP67 DeviceNet network adapter, slave mode, 24VDC bus power

Power Supply / Termination

• IC676PWR001: IP67 power distribution block, 24VDC, provides bus power to IC676 I/O blocks in a drop
• IC676TBK001: IP67 termination block, end-of-line bus terminator for IC676 network drops

Quality Control for the IC676 Range

IC676 modules present specific test challenges due to their IP67-sealed enclosures, integrated M12 field wiring connectors, and bus-coupled backplane communication. DriveKNMS applies the following test protocol to all IC676 units prior to dispatch:

• Visual and mechanical inspection: Enclosure integrity check, M12 connector pin condition, sealing gasket assessment, and label legibility verification.
• Power-on functional test: Each module is energized at rated 24VDC supply voltage. Status LED behavior is verified against GE Fanuc IC676 hardware reference documentation.
• I/O point verification: For discrete input blocks (including IC676PBI008), all 8 or 16 input channels are individually stimulated and confirmed active via network adapter diagnostic readback. For output blocks, each output channel is loaded and current draw verified within specification.
• Bus communication test: Network adapters (IC676PBS001, IC676PBS002, IC676GBA001) are connected to a live test network and confirmed to enumerate correctly, exchange I/O data, and report no fault codes.
• Analog calibration check: Analog I/O blocks (IC676ALG series) are tested across the full 4–20mA and 0–10V input/output range using calibrated signal sources and measurement equipment. Linearity and offset errors are recorded.
• Burn-in period: Selected units undergo a 24-hour powered burn-in cycle to screen for latent component failures prior to shipment.