GE IC693CPU350-BC | RS485 SNP/SNP-X Slave 670mA @5VDC 0-60°C Operating Temp

Description

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Product Introduction

When a packaging line’s PLC freezes mid-run because an old CPU can no longer handle the full 2048-point I/O load, the root cause almost always traces back to a unit with insufficient user memory and processing bandwidth.

Purpose-built for the GE Fanuc Series 90-30 modular PLC platform, this single-slot CPU uses a 80386EX processor to deliver reliable performance for medium to large industrial automation applications. It supports up to 8 expansion baseplates (including the local CPU baseplate), and natively handles 2048 discrete inputs, 2048 discrete outputs, 2048 analog input words and 512 analog output words. It has no on-board communication port, and uses the RS485 port integrated on the Series 90-30 power supply for all programming and data exchange.

IC693CPU350-BC

IC693CPU350-BC

IC693CPU350-BC

IC693CPU350-BC

IC693CPU350-BC

Key Technical Specifications

Field Application & Technical Pitfalls

This part runs three non-negotiable production-critical roles.
First, it acts as the core control unit for high-speed packaging lines and palletizers, executing complex motion and sequential logic to maintain stable line throughput.
Second, it delivers reliable control for automotive manufacturing production lines, managing 2000+ discrete I/O points across multiple assembly stations.
Third, it serves as the main processor for water treatment plant SCADA control systems, handling pump sequencing, flow control and alarm management for the full plant.

‌⚠️ Baseplate Slot Occupancy Risk‌: This CPU occupies one full single slot on the Series 90-30 baseplate. If you install it in a baseplate that does not reserve the dedicated CPU slot, you will damage the backplane bus connector and prevent all I/O modules from communicating.
‌⚠️ Communication Port Misunderstanding‌: This CPU has no on-board serial port. If you try to connect a programming cable directly to the CPU module itself, you will find no port available — all communication must go through the RS485 port on the matching Series 90-30 power supply.
‌⚠️ I/O Point Overrun Gap‌: The maximum total discrete I/O count is 4096 points. If you configure more than 2048 inputs + 2048 outputs in your Logicmaster project, the CPU will fault on power-up and refuse to enter RUN mode.

I watched a senior automation tech skip the I/O count check last summer. He downloaded a project originally built for a higher-spec Series 90-30 CPU into this IC693CPU350-BC, and the total discrete I/O count hit 4200 points. The CPU faulted immediately on boot, and the packaging line stayed offline for 2 hours while the team trimmed the project down to the supported 4096-point limit. That 5-minute configuration oversight forced the operations team to delay the full line startup by half a shift.

Quality Control (QC) SOP & Transparency

1. ‌Inbound Verification‌: Cross-check the OEM serial number against GE Fanuc’s official Series 90-30 part revision database, run anti-counterfeit validation on the module’s laser-etched serial label, and confirm no prior rework traces on the CPU processor solder joints.
2. ‌Live Rig Testing‌: Mount the module in a certified Series 90-30 test rack, download a full 32K user memory test project, and verify 4 hours of stable continuous RUN mode operation.
3. ‌Parameter Testing‌: Confirm full 2048 discrete I/O addressing works correctly, verify RS485 SNP-X communication with the programming workstation is stable, and log all scan time performance data.
4. ‌Final QA & Packaging‌: Seal the fully tested module in a static-shielding anti-static bag, apply a unique QC passed serial label, and pack it in ESD-dissipative foam with a printed hard copy of the full CPU functional test report.

Frequently Asked Questions

• ‌Can I hot-swap this CPU module while the Series 90-30 rack is powered on?‌ No. The Series 90-30 backplane does not support hot-swap. Pulling the CPU live will cut all I/O communication instantly, triggering an uncontrolled system stop.
• ‌What exact GE PLC systems does this part work with?‌ It is fully compatible with all GE Fanuc Series 90-30 PLC systems. It will not fit or establish stable communication on older Series 90-20 or newer RX3i PACSystem platforms.
• ‌How long is the standard warranty for this new surplus unit?‌ It carries a full 12-month functional warranty. If it fails within that window under specified operating conditions, we cover all return shipping and bench replacement costs.
• ‌How do I tell a genuine OEM unit apart from a refurbished clone?‌ Genuine units have the GE Fanuc hologram sticker on the side of the PCB, and the 80386EX processor has the official GE part number laser-etched on the top. Refurbished clones usually skip the official hologram and use generic unmarked processors that cannot deliver the rated 32K user memory capacity.
• ‌Will this IC693CPU350-BC directly replace an older Series 90-30 CPU?‌ No. Older lower-spec CPU variants only support 16K user memory. You will need to confirm your existing project fits within the 32K memory limit and re-verify the total I/O point count after swapping.
• ‌What’s the maximum safe continuous operating temperature at full 32K project load?‌ It will hold stable scan time performance up to 60°C, though your mileage may vary if the rack cooling airflow drops below 15 CFM and internal processor temperatures spike 15°C above ambient.