3.4
I/O Modules
3.4.1
Overview
Description of the Modules
26
MITSUBISHI ELECTRIC
ST1Y2
-TPE3
ST1Y16
-TPE3
RUN
RUN
ERR.
ERR.
21
21
41
61
81
101
121
141
161
11
11
31
51
71
91
111
131
151
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Number Meaning
Description
쐃
RUN LED and ERR. LED
The LEDs show the operating status of the module. (refer to page 27)
The background colour of the LEDs is a indicator for the type of mod-
ule:
쎲
Light grey: Digital input modules
쎲
Orange: Digital output modules (transistor output)
쎲
Brown: Digital output modules (contact output)
쎲
Green: Analog input modules
쎲
Blue: Analog output modules
쐇
I/O status LEDs
Indicate whether the inputs/outputs are ON or OFF. The LED is lit
when the corresponding input/output is ON.
쐋
Face plate
Use the symbol label to note the names of external connections. A
diagram of the wiring to the base module is printed on the surface.
When checking the wring diagram, remove the symbol label.
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Slice module fixing hooks (both
ends)
Hooks for mounting/removing the slice module to/from the base
module. Hold down the hooks at both ends, and remove the module.
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Coding element
Provided to prevent a wrong slice module from being inserted into the
base module. The slice module can be inserted only when the coding
element of the base module matches that of the slice module.