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ABB ASFC-01C 64649540 Point-to-point communication transmission

¥688.00

Part Number:ASFC-01C 64649540

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Contacts:kelly CHEN

Description

Modbus®
RTU is an open master/slave protocol, and can be easily implemented on serial interfaces.
Numerous automation systems have Modbus®
RTU interfaces as standard or optional features, and are thus
easily able to communicate with the AC500 via its integrated COM1 and COM2 interfaces (RS232 or RS485).
The Modbus®
is used not only in industrial applications, but also in building installations, in energy optimization
systems, for long-distance data transmission and for linking up operator panels.
Communication
By polling, i.e. the master transmits a request to the
slave and then receives the response. Both interfaces
COM1 and COM2 can operate simultaneously as
Modbus interfaces. The Modbus operating mode of
an interface is set using the engineering tool.


Topology
Point-to-point via RS232 or multi-point via RS485.
With RS232, a maximum of one master and one
slave is possible, while with RS485 one master and a
maximum of 31 slaves can be operated. The maximum cable length is 15 m with RS232 and 1.2 km
with RS485.
Data transfer
Max. 115.2 kB/s. Each telegram has a 16-bit CRC
appended. The telegrams permit process data (input/
output data) to be written and read, either individually
or in groups. The data are packed in the RTU format.
Transmission media
May vary. One widely used option is the RS485 bus
physics, a twisted-pair, shielded cable with terminators.
Diagnostics
Detailed diagnostic messages for rapid trouble-shooting are shown on the CPU display.

 

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Contact Us:+86 18106937731
Whatapp:+86 15359293870
Email: geabbdcs@gmail.com / 2872270648@qq.com
Contact Person: Chen

 

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