Entry type: Product note Entry ID: 4559227, Entry date: 06/19/2000
S7-300 CPU 318 - Product Information
Concerns the product with Order No.: 6ES7 318-2AJ00-0AB0 all harware releases and firmware V1.1.3 or older No system function blocks (SFBs) may be called in the background OB 90 of the above S7-300 CPUs. If you do, errors in program processing may result, or even CPU STOP. System functions (SFCs) are not affected by this problem. The previous CPU series are also not affected. As a provisional remedy we advise you to transfer OB 90 program sections with SFB calls to the OB 1. We will inform you via a separate SIMATIC Info as soon as the problem has been corrected with a new firmware version of the CPU 318. -----------------------------------
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