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AC500-eCo - 10 -
Hardware Introduction
2.1.4 Communication Interfaces
COM1
The serial interface COM1 is connected to a 9-pin SUB-D Connector.
COM1 is a RS-485 serial interface and can be used for
Online access (RS-485 programming interface for PC/Control Builder)
Modbus RTU as master or slave
ASCII serial protocols
CS31 Master
RTC + Battery, SD-card on SD Card Adapter (Option)
Dedicated communication interface
COM2 (Optional)
The serial interface COM2 is connected to a removable 5-pin terminal block.
It has RS-485 serial interface and can be used for
Online access (RS-485 programming interface for PC/Control Builder)
Modbus RTU as master or slave
ASCII serial protocols
COM2 does not support communication via CS31 system bus.
I/O Bus
The I/O Bus is I/O data bus for the S500 Input / Output expansion modules. Through this
bus, I/O and diagnosis data are transferred between the AC500 CPU and the S500 I/O
expansion modules.
2.1.5 CPU Accessories
The AC500 CPU has following accessories:
Type Description Used for
MC502 + MC503
SD Memory Card with Adapter Backing-up user data;
Storing user programs;
Updating the firmware
TK503 D-Sub RS485 / USB Programming
cable
realize the communication between PLC to PC
TA560 Lithium Battery Back-up RTC
TA561-RTC RTC+ Battery TA561(COM2) keeps track of the current time and keep time
while the power supply is off or unavailable
TA562-RS RS 485 Serial Adapter TA562
(COM2)
for communication and online access
TA562-RTC-RS RS485 Serial Adapter+ RTC + Battery
TA563 (COM2)
Integrates RTC function with battery and serial
communication interface RS485 into one
option board.
TA566 Wall mounting accessory For CPU wall mounting
TA567 Option Cover Protect the CPU
TA568 5 poles terminal block For power supply wiring
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