Publication History .............................................................................................................. vi
Safety ................................................................................................................................... vii
Safety symbols ................................................................................................................................ vii
General safety regulations .............................................................................................................. vii
Welding after installation ................................................................................................................ viii
Construction regulations ................................................................................................................ viii
Safety during installation ................................................................................................................ viii
Safety during start-up ....................................................................................................................... ix
Safety during maintenance and fault diagnosis ............................................................................... ix
1. About the VMM3120 .......................................................................................................... 1
1.1. Diagram conventions ................................................................................................................ 2
2. Quick Start ......................................................................................................................... 5
2.1. Overview ................................................................................................................................... 5
2.2. Gather Required Materials ........................................................................................................ 5
2.3. Install the Required Software Tools .......................................................................................... 6
2.3.1. Install the Data Link Adapter Driver Software ............................................................. 6
2.4. Connect the VMM3120 multiplexing module to a Development System .................................. 7
2.4.1. Power Up the Development System ........................................................................... 8
2.5. Create and Download Ladder Logic Applications ..................................................................... 9
3. Inputs ............................................................................................................................... 10
3.1. Digital Inputs ........................................................................................................................... 10
3.1.1. Digital Inputs .............................................................................................................. 10
3.1.2. Addressing Inputs ...................................................................................................... 13
3.1.3. Power Control Digital Inputs ...................................................................................... 14
3.2. Analog Inputs .......................................................................................................................... 16
3.2.1. Analog Input Capabilities ........................................................................................... 16
3.2.2. Analog Input Configuration ........................................................................................ 17
3.2.3. Analog Input Installation Connections ....................................................................... 18
3.3. Frequency Inputs .................................................................................................................... 21
3.3.1. AC-Coupled Frequency Inputs .................................................................................. 21
3.3.2. DC-Coupled Frequency Inputs .................................................................................. 24
4. Outputs ............................................................................................................................ 28
4.1. High-side outputs .................................................................................................................... 28
4.1.1. High-Side Output Capabilities ................................................................................... 28
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