GE Fanuc IC693CBL316 Replacement for Series 90-30

Product Overview

GE Fanuc IC693CBL316 Replacement for Series 90-30: Smooth Migration & Legacy System Compatibility

The GE Fanuc IC693CBL316 is the standard RS-232 serial programming cable for the Series 90-30 PLC platform, enabling direct communication between a programming workstation running Proficy Machine Edition (PME) or legacy Logicmaster 90-30 software and the CPU module’s serial port. As aging Series 90-30 systems approach end-of-life and original cables become increasingly difficult to source, the IC693CBL316 serves as the critical link for both ongoing maintenance and structured migration projects. Whether you are sustaining an existing installation or executing a phased upgrade to a PACSystems RX3i or RX7i platform, having a verified replacement cable on hand eliminates unplanned downtime caused by worn connectors, broken shielding, or lost original accessories.

The IC693CBL316 connects to the RS-232 serial port on Series 90-30 CPU modules including the IC693CPU311, IC693CPU313, IC693CPU323, IC693CPU331, IC693CPU340, IC693CPU341, IC693CPU350, IC693CPU360, and IC693CPU374. The cable provides a 9-pin D-sub (DB9) interface on the PC side and a proprietary mini-DIN connector on the PLC side, with full hardware handshaking lines (RTS/CTS) required by the Series 90-30 communication protocol. Replacement units supplied by TOPNLMS are manufactured to the original GE Fanuc wiring specification, ensuring that baud rate negotiation, SNP (Serial Natural Protocol) handshaking, and SRTP session establishment all function identically to the factory original.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful Series 90-30 migration or maintenance project rarely involves a single component. The IC693CBL316 programming cable is typically deployed alongside a broader set of hardware that must be verified, replaced, or upgraded in parallel to ensure system continuity.

On the CPU side, engineers working with an IC693CPU350 or IC693CPU360 will use the IC693CBL316 to upload and download ladder logic programs during commissioning or after a CPU swap. When the CPU itself is being replaced due to battery failure or memory corruption, the cable is the first tool needed to verify program integrity on the new module before returning the machine to production. For sites migrating to the PACSystems RX3i platform, the IC693CBL316 remains essential during the transition period when legacy Series 90-30 racks — including the IC693CHS391 10-slot baseplate and IC693CHS397 5-slot baseplate — are still in service alongside new RX3i hardware.

Discrete I/O modules such as the IC693MDL340 24 VDC input module and IC693MDL741 relay output module are frequently retained during partial upgrades, and the programming cable is required to reconfigure I/O addressing after any rack or slot reassignment. Similarly, analog I/O modules including the IC693ALG221 analog input and IC693ALG390 analog output modules require serial-port access for calibration and scaling parameter downloads when the Ethernet option module is not installed.

For sites that rely on IC693CMM321 or IC693CMM311 communications modules for Genius Bus or serial network connectivity, the IC693CBL316 is used to configure the host CPU before the network is brought online. Power supply modules such as the IC693PWR321 120/240 VAC power supply and IC693PWR330 24 VDC power supply do not require direct cable programming, but their replacement is often scheduled concurrently with CPU and cable maintenance to minimize future outage windows. Having a spare IC693CBL316 stocked alongside these components ensures that any unplanned maintenance event can be resolved without waiting for cable procurement.

Retrofit Guidance FAQ

Q: Will the IC693CBL316 replacement work with my existing Proficy Machine Edition installation?
A: Yes. The replacement cable is wired to the same RS-232 SNP specification as the original. Proficy Machine Edition (all versions supporting Series 90-30) will detect the cable and establish communication at the configured baud rate without any driver changes.

Q: My PC no longer has a DB9 serial port. Can I use a USB-to-serial adapter?
A: Yes, with a qualified USB-to-RS-232 adapter using a FTDI or Prolific PL2303 chipset. Ensure the COM port is assigned a number below COM10 in Device Manager, and set the baud rate to match the CPU’s configured SNP port speed (typically 19,200 bps).

Q: Is the wiring pinout compatible with third-party programming software?
A: The IC693CBL316 pinout is specific to GE Fanuc Series 90-30 SNP protocol. It is compatible with Proficy Machine Edition and Logicmaster 90-30. Third-party SCADA or HMI tools that use SRTP over serial will also function correctly.

Q: Can this cable be used during a live migration from Series 90-30 to PACSystems RX3i?
A: Yes. During a phased migration, the IC693CBL316 is used to maintain and back up the legacy Series 90-30 program while the new RX3i hardware is being configured in parallel. The cable connects only to the Series 90-30 CPU serial port and has no role in the RX3i Ethernet programming interface.

Q: What is the maximum cable run distance for reliable communication?
A: RS-232 is rated to approximately 15 m (50 ft) at 19,200 bps in a low-noise industrial environment. The IC693CBL316 is approximately 3 m and is designed for direct workstation-to-panel connections. For longer distances, a serial repeater or Ethernet-to-serial converter is recommended.

Q: How do I verify the cable is functioning before connecting to the CPU?
A: Use a DB9 loopback plug on the PC side to confirm the COM port is operational. Then connect to the CPU, power the rack, and attempt a “Go Online” operation in Proficy Machine Edition. A successful SNP handshake confirms cable integrity.

Warranty Assurance

Every IC693CBL316 replacement cable shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each unit undergoes continuity testing across all signal lines (TXD, RXD, RTS, CTS, GND) and shield integrity verification to confirm compliance with the GE Fanuc wiring specification. If a cable exhibits any defect in materials or workmanship within the warranty period — including connector failure, intermittent signal, or shielding breakdown — TOPNLMS will provide a replacement unit at no additional cost.

Orders are typically processed and dispatched within 1–3 business days from our Xiamen warehouse. Express international shipping options are available for urgent maintenance situations. All shipments include a packing list and basic test record. For B2B procurement teams requiring documentation such as a certificate of conformance or test report, please contact us directly prior to order placement.

For volume orders, blanket purchase agreements, or consignment stock arrangements for MRO programs, TOPNLMS offers flexible terms to support ongoing maintenance contracts and plant-wide upgrade projects.