Hitachi MICRO-EHV+ Applications Manual page 9

3.21 Option board ................................................................................................................................. 3-74
3.21.1 Supported function ........................................................................................................... 3-74
3.21.2 Port number setting .......................................................................................................... 3-75
3.21.3 Analog input/output setting ............................................................................................... 3-75
3.21.4 Modbus-RTU communication .......................................................................................... 3-77
3.21.5 General purpose communication ..................................................................................... 3-77
3.22 USB program transfer ................................................................................................................... 3-78
3.22.1 Download from USB to PLC ............................................................................................. 3-78
3.22.2 Upload from PLC to USB ................................................................................................. 3-79
3.22.3 Verify between PLC and USB .......................................................................................... 3-79
3.22.4 Boot from USB ................................................................................................................. 3-79
3.23 USB data logging (File system)..................................................................................................... 3-80
3.24 Web visualization .......................................................................................................................... 3-83
3.25 Libraries ........................................................................................................................................ 3-85
3.25.1 How to install .................................................................................................................... 3-85
3.25.2 Real time clock ................................................................................................................. 3-86
3.25.3 Serial communication ....................................................................................................... 3-87
3.26 Troubleshooting ............................................................................................................................ 3-89
3.26.1 Error indication ................................................................................................................. 3-89
3.26.2 Error code ........................................................................................................................ 3-89
3.27 Version .......................................................................................................................................... 3-93
3.28 Package Manager ......................................................................................................................... 3-94
Chapter 4 Installation
4.1 Installation ..................................................................................................................................... 4-1
4.2 Wiring ............................................................................................................................................ 4-3
Chapter 5 Maintenance
5.1 Daily and Periodic Inspection ........................................................................................................ 5-1
5.2 Product Life ................................................................................................................................... 5-2
Appendix Known Restrictions
4-1 to 4-8
5-1 to 5-4
A-1 to A-4