Entry type:
Product note
Entry ID:
4343040,
Entry date:
09/02/1998
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SIMATIC C7-623, C7-623/A, C7-624 - New CPU Firmware V201
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Associated product(s)
If the function "Copy RAM to ROM ..." is executed, the C7 CPU will request an overall reset after the first OFF/ON cycle. If the overall reset is carried out the problem will not occur with any later OFF/ON cycles. SIM 627, 628 and 629 kits are available for correction. *See Full Version*Concerns products with the Catalog No.'s: 6ES7 623-1AE01-0AE3 SIMATIC C7-623 control system 6ES7 623-1CE01-0AE3 SIMATIC C7-623/A control system 6ES7 624-1AE01-0AE3 SIMATIC C7-624 control system _Reason for the change:_ - After loading the STEP 7 program the programming device, PC or UD700 unit performs the function "Copy RAM to ROM ..." . - Upon the next OFF/ON cycle of the SIMATIC C7 (supply voltage OFF and ON) the unit will request an overall reset. This is indicated by the red LED with the label SF and the flashing LED with the label STOP. - If the overall reset is performed, the unit will start up without problems, until the function "Copy RAM to ROM ..." is executed again. _Solution:_ If the following procedure is carried out, the problem will not influence normal operation: Each time the function "Copy RAM to ROM ..." is executed, switch the unit OFF and ON and perform the requested overall reset. _Upgrading:_ The new CPU firmware V201 eliminates the problem. Please speak to your SIMATIC contact at your local Siemens office about upgrading. _Affected products:_ The above SIMATIC C7 units with revision levels of the basic board as lis- ted below and CPU firmware V200 are affected. The current firmware version is displayed in the STEP 7 manager under Module Condition. The revision level of the basic board (GRBG) can be seen on the type label on the rear side of the unit. Type Catalog No. Revision level of Revision level basic board (GRBG) after correction --------------------------------------------------------------------------- C7-623 6ES7623-1AE01-0AE3 GRBG = 7 and GRBG = 9 GRBG = 10 C7-623/A 6ES7623-1CE01-0AE3 GRBG = 1 and GRBG = 2 GRBG = 3 C7-624 6ES7624-1AE01-0AE3 GRBG = 7 and GRBG = 9 GRBG = 10 -------------------------------
Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
https://www.siemens.com/cybersecurity#Ouraspiration.
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Entry belongs to product tree folder(s):
- Automation Technology Automation Systems Industrial Automation Systems SIMATIC PLC SIMATIC C7 Control systems
- Automation Technology Automation Systems Industrial Automation Systems SIMATIC PLC SIMATIC C7 Customized design
- Automation Technology Automation Systems Industrial Automation Systems SIMATIC PLC SIMATIC C7 C7 I/O module
- Automation Technology Automation Systems Industrial Automation Systems SIMATIC PLC SIMATIC C7 IM 621 interface module
- Automation Technology Automation Systems Industrial Automation Systems SIMATIC PLC SIMATIC C7 Accessories
- Automation Technology Automation Systems Industrial Automation Systems SIMATIC Archive Automation Systems PLC SIMATIC C7
- Automation Technology Operator control and monitoring systems accessories Batteries
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