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1. Introduction IOMod 8DI4RO is a stand-alone digital input and relay output controller. This device is used for industrial applications where digital signaling is used and robust communication is essential. It is controlled over Modbus, IEC 60870-5-101 or IE...

The execution_signal parameter returns information about the specific signal that triggered execution. If there are multiple possible source signals, it identifies the one that actually initiated the execution. In this example, Modbus RTU protocol is used. Con...