10.07.2015 Views

Silver Series Installation and Operation Manual, Rev B ... - Watlow

Silver Series Installation and Operation Manual, Rev B ... - Watlow

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Using EZware-5000 65Write data to PLC (current base window)When the HMI initializes, <strong>and</strong> when the Base Window changes (for any reason), the number of the new Base Windowis written to the PLC Register specified by the Trigger address.General PLC ControlExecutes a data transfer of up to 32 words from the HMI to the PLC or from the PLC to the HMI when the value in theTrigger Address is set to a valid operation code. After the operation is complete, the HMI sets the value in the Triggeraddress to 0. A total of four values are needed to configure the General PLC Control attribute.Address Function DetailsTrigger address <strong>Operation</strong> code. Valid codes are 1, 2, 3, 4.The Trigger address is set to 0 by the HMIwhen the transfer is complete.1. PLC to HMI: RW (recipe words)2. PLC to HMI: LW (local words)3. HMI to PLC: RW to PLC4. HMI to PLC: LW to PLCTrigger address + 1Number of words to transfer(32 words maximum)The number of words to transfer from thePLC to the HMI or HMI to PLC.Trigger address + 2 PLC Data Address Offset The Address Offset (from the Triggeraddress + 4) at which the transfer of datato/from the PLC will start.Trigger address + 3 HMI Data Address Offset The Address Offset at which the transfer ofdata to/from the HMI will start.Note: The HMI will transfer data to/from the Device Type specified by the Trigger address.It is recommended that the data in (Trigger Addr + 1), (Trigger Addr +2), <strong>and</strong> (Trigger Addr +3) be set before writingthe <strong>Operation</strong> Code to (Trigger Addr).Backlight Control (Write Back)Allows the PLC to control the HMI’s backlight via the bit specified in the Trigger address. Once the requestedoperation has been performed, the HMI will reset the bit.Note: The PLC Control Object may be configured with two Backlight Control (Write Back) items, with different bits forthe On <strong>and</strong> Off control. The backlight can then be controlled directly from the PLC.Backlight ControlOperates the same as the Backlight Control (Write back) attribute described above, but the HMI will not reset the bitspecified in the Trigger address.Sound ControlPlays the selected sound when the bit specified by the Trigger address matches the trigger mode conditions.Execute Macro ProgramExecutes the designated macro when triggered by the bit specified in the Trigger address.Note: Only available when a macro has been created in the project.0600-0069-0000 <strong>Rev</strong>. B

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