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Distributed I/O System ET 200S

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4 IQ-SENSE (6ES7138-4GA00-0AB0)<br />

5.2 Parameters for the 4 IQ-SENSE<br />

5.2.3 Synchronization group parameter<br />

Operating principle<br />

• Sensors between different modules of the 4 IQ-SENSE may influence one another (e.g.<br />

scattered light).<br />

• To prevent interference from neighboring sensors on different modules, this parameter<br />

can be used to allocate a separate synchronization group to every module. Modules in<br />

different synchronization groups do not interfere with one another.<br />

• Sensors on the same module cannot interfere with one another.<br />

The diagram below explains the functioning of the synchronization group parameter:<br />

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Figure 5-1 Synchronization group<br />

<strong>ET</strong> <strong>200S</strong><br />

5-4 Manual, 12/2005, A5E00514527-03<br />

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Mutual interference is only possible between the sensors of the modules in slot 2 and 6,<br />

because they are in the same synchronization group 1.<br />

Note<br />

Sensors in the same synchronization group must be installed to maintain the minimum<br />

clearance (see sensor package insert) and to prevent mutual interference.

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