2.1 Names and Functions of Parts
2-3
2.1.2 Parts Names and Functions of Serial Communication Unit
(In the above figure, two communication cassettes are attached.)
Names and Functions of Parts
(1) Operation monitor LEDs
Display
LED
color
Description
-
Blue
Lights when the power supply of the CPU unit is on.
Lights when the configuration setting is incorrect, or a communication error occurs.
Flashes when the factory acceptance test switch is on. (Flashing cycle: 100 ms)
ERROR Red
Flashes when an extension cassette that cannot be used is installed. (Flashing
cycle: 500 ms)
ALARM
Red
Lights when an error occurs in hardware.
(2) COM.1 and COM.2 ports
Attach a separately sold communication cassette to use these ports. No blank cover is fitted
when the unit is shipped.
(3) COM.3 and COM.4 ports
Attach a separately sold communication cassette to use these ports. A blank cover is fitted
when the unit is shipped.
(4) DIN hook
This is used to fix the unit to a DIN rail.
(5) Unit connector
This is used to connect the internal circuit of an I/O unit or advanced unit.
(6) Factory acceptance test switch
This is used for factory acceptance test. Do not turn it on.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Summary of Contents for AFP7CCM1
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