Owner's Manual

32
The DIOS PIU and Piccolo-XR Units
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Downloading new software to a Piccolo XR Plus unit
1. Connect the PIU adapter RS232 port to the computer
using the FTN6597B cable (see Figure 21).
2. Connect the PIU adapter unit to an external 12VDC
battery or to an internal 9V battery. (See page 12 for
power options).
3. Connect the Piccolo XR Plus unit to an external 6 V
DC
power source. (See Power Connections on page
23.)
4. Use the P4 connector (programming) of the
FKN8171B cable to connect the Piccolo XR Plus
unit to
the Adapter port of the PIU unit.
5. Use the Distributed I/O Service Toolkit Downloader.
For additional information, please refer to the online help of the
DIOS Service Toolkit.
Piccolo XR Plus
PIU Adapter Toolkit PC
+ - + -
RS232
Programming
P4
Cable
P5
Connectors
GND
RS485
RS232
To PC
Adapter To
Piccolo XR
Plus
Figure 21
PIU Adapter – Piccolo XR Plus Downloading Mode
Connections
NOTE!
The grounding connector is also used as an ON/OFF
switch, and the unit cannot be powered on without
connecting it. (See Figure 9.)