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Preface
■ Introduction
The Easy521/Easy522/Easy523 series PLC, the new generation of small PLC developed
by Inovance, supports network switchover through two network ports and allows
process packaging and reuse through FB/FC function. With RS485, Ethernet, and
EtherCAT, a multi‑layer network communication can be realized through this PLC,
with 16 modules extendable. RS485/RS232/CAN/DI/DO/AI/AO/RTC clock/TF card
functions can also be available through the extension card.
This guide describes installation and wiring of the PLC, including product information,
mechanical installation, and electrical installation.
■ Standards compliance
The following table lists the certifications, directives, and standards that the product
may comply with. For details about the certifications compliant with, see the
certification marks on the product nameplate.
Certification Directive Standards compliance
CE certification EMC Directive 2014/30/EU 24 VDC products:
EN 61131‑2
220 VAC products:
EN 61131‑2
EN 61000‑3‑2
EN 61000‑3‑3
Low Voltage
Directive (LVD)
2014/35/EU EN 61010‑1
EN 61010‑2‑201
RoHS Directive 2011/65/EU
amended by (EU)
2015/863
EN IEC 63000
UL/cUL certification ‑ UL 61010‑1
UL 61010‑2‑201
UL 61010‑2‑030
CAN/CSA‑C22.2 No. 61010‑1
CSA C22.2 NO. 61010‑2‑201
CSA C22.2 NO. 61010‑2‑030
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