Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | IC200CPUE05 |
| Manufacturer | GE Fanuc (Emerson) |
| Processor Type | 32-bit RISC |
| User Memory | 128KB Configurable (Flash + Battery-backed RAM) |
| Boolean Speed | 0.8 ms/K instructions |
| Ethernet Port | 10Mbps RJ-45 (SRTP, EGD, Modbus TCP*) |
| Serial Ports | 1x RS-232 (Port 1), 1x RS-485 (Port 2) |
| I/O Capacity | Up to 64 Modules / 2048 I/O Points |
| Real-Time Clock | Built-in, ±9 sec/day accuracy |
| Power Req | 5V DC (220mA) / 3.3V DC (570mA) via Backplane |
| Dimensions | 126 x 128 x 69.1 mm |
| Programming | Ladder Diagram, Instruction List (Proficy ME) |
Product Introduction
You don’t buy a VersaMax CPU because you want the latest tech; you buy it because the machine has been running for 15 years and you can’t justify a full rip-and-replace. The IC200CPUE05 is the workhorse of that platform. It’s the version that finally gave VersaMax a native Ethernet port without needing a clunky external comm module. I’ve seen these sitting in dusty panels at water treatment plants and packaging lines, quietly handling SRTP and EGD exchanges while newer controllers overheat in the next cabinet over.The real reason engineers stick with this specific CPU is the 128KB memory buffer. Older VersaMax CPUs choked on 64KB once you added HMI tags and EGD exchanges, but the E05 handles the bloat. It runs cool, too. No fan, just a big aluminum heatsink on the back. Just be careful with the revision suffix. I’ve swapped a “BE” into a panel running an “AA” chassis and had to spend two hours figuring out why the EGD packets were timing out. The hardware fits, but the silicon inside is picky about its friends.
Quality SOP & Tech Pitfalls
We don’t trust “tested” stickers from eBay sellers. Every IC200CPUE05 we ship goes through a mandatory bench test. First, we inspect the RJ-45 jack for bent pins and check the backplane connector for green corrosion. Then, it goes on a live VersaMax rack. We don’t just power it up; we force an EGD exchange and download a test logic block to verify the 128KB memory map is actually readable. We check the supercapacitor voltage with a Fluke 115 to ensure it can hold the clock for at least an hour. Finally, we log the firmware version and seal it in anti-static foam.Here is where people burn money: Firmware incompatibility. If you are running firmware 3.00 or higher, you cannot use a CPUE05-HK or older hardware revision. The silicon changed, and the new firmware will brick the old board. I watched a tech fry a perfectly good E05-JL by trying to force-download an old 2.10 backup into it. Also, check the battery tab. If the plastic insulator tab is still sticking out of the top, pull it before you install. Otherwise, you’ll get a “Battery Low” fault in six months and wonder why your RTC is drifting.
Installation & Configuration Guide
- Pre-Installation: ⚠️ BACKUP FIRST. Connect via RS-232 (Port 1) and save the current PLC, configuration, and reference tables to your laptop. Take a photo of the DIP switches and the Ethernet port LEDs.
- Removal: Power down the 24V supply. Wait 30 seconds. Release the top and bottom DIN clips. Pull the module straight out. Do not use the CPU as a handle to pull the whole rack.
- Installation: CHECK THE REVISION. Match the suffix (e.g., -JL, -LT) to your system requirements. Slide the new IC200CPUE05 onto the DIN rail. Ensure the backplane connector seats fully before snapping the clips.
- Power-On & Testing: Apply 24V DC. Watch the LEDs: PWR (Green), OK (Green), then RUN (Green). If FAULT blinks, check your I/O configuration in Proficy Machine Edition immediately. Verify the LAN LED is solid or blinking. Download your backup and run a “Compare” to ensure no memory corruption occurred during the swap.
Compatible Replacement Models
| Model | Compatibility Tier | Notes |
|---|---|---|
| IC200CPUE05 | ✅ Drop-in | Exact replacement. Verify firmware suffix (-JL, -LT, etc.). |
| IC200CPUE05-BE | ⚠️ Software Match | Adds Modbus TCP. Requires Proficy ME 8.0+. Check EGD timing. |
| IC200CPUE05-LT | ✅ Drop-in | Latest hardware revision. Backward compatible with older firmware. |
| IC200CPUE01 | ❌ Not Compatible | No Ethernet. Different memory map. Do not swap. |
Frequently Asked Questions (FAQ)
Can I hot-swap this CPU while the rack is powered?
Absolutely not. The VersaMax backplane is not designed for CPU hot-swapping. You will corrupt the I/O configuration table and potentially fry the backplane driver chips. Power down, swap, power up.Why does my EGD exchange pause every 6-10 minutes?
You likely have more than 11 CPUs on the same EGD network segment. Older firmware has a known bug where the EGD producer pauses for ~20 seconds to service internal tasks. Upgrade to firmware 3.10+ or split your EGD network into smaller segments.Is the 128KB memory real, or is it just 64KB with a patch?
It’s real. The E05 uses a different memory architecture than the E01/E02. However, if you are upgrading from an older CPU, you must recompile your logic in Proficy Machine Edition to utilize the full 128KB. The old .POU files might default to 64KB mapping until you change the CPU configuration.Do I need the battery if I have a supercapacitor?
Yes. The supercap only holds memory for about 1 hour after power loss. The CR2032 battery (Panasonic BR2032 or ACC001) keeps the RTC and RAM alive for up to 6 months. If you lose power for a weekend and come back to a “Time of Day Lost” fault, your battery is dead.Can I use a standard CAT6 cable for the Ethernet port?
You can, but don’t expect Gigabit speeds. The IC200CPUE05 port is strictly 10Mbps. Using CAT6 is fine for noise rejection, but if you plug it into a Gigabit switch, force the switch port to 10Mbps Half/Full Duplex. Auto-negotiation often fails between these old PLCs and modern switches, leaving you with a dead link.What programming software do I need?
Proficy Machine Edition Logic Developer (version 8.0 or later for newer firmware). VersaPro is EOL and will not recognize the E05’s 128KB memory or Ethernet configuration blocks. Don’t waste time trying to make VersaPro work.
