Product History
| Rel. | Ver. | Date | IPI | Upgrade Kit | New Features | Problems Resolved |
| HF | 8.20 | Jul-11 | GFK-1434L | 44A747755-G04 | N/A | Revised battery life estimates. |
| HF | 8.20 | Jul-08 | GFK-1434K | 44A747755-G04 | Improvements to internal diagnostics. Upgrade not required. | NA |
| HE | 8.11 | Jun-08 | GFK-1434J | NA | Hardware update only; does not affect features, functionality, or compatibility | NA |
| GE | 8.11 | Feb-08 | GFK-1434H | N/A | Hardware update only; does not affect features, functionality, or compatibility | NA |
| FE | 8.11 | Sep-06 | GFK-1434G | N/A | Hardware update only; does not affect features, functionality, or compatibility | |
| EE | 8.11 | Mar-04 | GFK-1434f | 44A747755-G04 | ||
| CD | 8.10 | Feb-01 | GFK-1434e | |||
| BD | 8.10 | Jun-00 | GFK-1434d | 44A747755-G03 |
TOD Clock Changed Service Request 7 Given POSIX Capability |
Incorrect Checksums from Service Request 23 COMMREQs Located in Interrupt Blocks PSB Power Flow Output PSB Y0 Not Saved and Restored Across Calls to Nested PSBs |
| BC | 8.00 | Oct-99 | GFK-1434c | 44A747755-G02 |
Enhanced functionality of Serial Ports 1 and 2: "break-free" SNP, DOS and Windows Programming Software Support | |
| BB | 7.92 | Dec-98 | GFK-1434b | 44A747755-G01 |
Clock Synchronization using FIP and/or SIO Module Multi-threaded LD Program capability (MTLD) Run Mode Store in Microcycle Sweep Mode Read/Write of PLC CPU Memory using Service Request Function Block Bulk Memory Access (BMA) C Toolkit Enhancements |
CPU would fail when certain faults were logged against an Ethernet Module Large FBC Configuration Files User Flash Operations Masked Compare Function Block Run Mode Store Incorrect reporting of total program logic size Size reported of Standalone C programs Application changes with more than 200 program blocks |
| BA | 7.80 | Nov-98 | GFK-1434a | N/A |
Upgraded copy of MS-DOS Programming software is now packed with CPU |