Ethernet I/O Modules
Frame Ground:
Electronic circuits are constantly vulnerable to Electrostatic Discharge (ESD), which becomes worse in
a continental climate area. PETL/tET/tPET series module feature a new design for the frame ground,
which provides a path that bypasses ESD, resulting in an enhanced ESD protection capability and
ensuring that the module is more reliable.
The frame ground (F.G.) of the tET/tPET series, as follows:
The frame ground (F.G.) of the PETL-7060, as follows:
The PETL-7060 controller has a metallic board attached to the
back of the plastic casing as indicated by point 1 in the figure.
When mounted to the DIN-Rail, connect the DIN-Rail to the
earth ground because the DIN-Rail is in contact with the upper
frame ground as shown in the figure, point 2.
Module
Pin
Name
Function
tET/tPET
1
F.G.
Frame Ground
2
1
ICP DAS CO., LTD.
PETL/tET/tPET DIO Series User Manual, Ver. 2.1, Sep. 2014, Page: 16