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Position of the Event Queue |
N1 |
Address of a Modbus Slave. If this parameter is configured with the value 0 (zero), this Tag uses the address configured in the Default Slave Address option of the ME3011 tab |
N2 |
1 (one) |
N3 |
Number of a module |
N4 |
0 (zero) |
This Tag informs the last position of the event queue read by this Driver. This value must be stored by an application so that, when starting, this Driver can check how many events must be read, to avoid duplicating or losing events. Each module, with up to 64 inputs, contain its own queue. Therefore, if a device uses 4 (four) modules, use 4 (four) Tags of this type for that device.