![IAI RoboNet Скачать руководство пользователя страница 131](http://html1.mh-extra.com/html/iai/robonet/robonet_operation-manual_604045131.webp)
111
Part 1 Specification
3.9.2 Modbus/RTU Protocol Specification
The RS485 SIO GateWayR unit has an asynchronous serial bus interface conforming to EIA RS485 for interfacing with the
host.
The Modbus protocol is used for communication to receive commands from the host or reference internal information in the
host.
The Modbus protocol is a communication protocol developed by Modicon Inc. (AEG Schneider Automation International
S.A.S.) for PLCs, and its specification is open to the world. For the detailed specifications of this protocol, refer to the
specification document (Modbus Application Protocol Specification V1.1a) published by Modbus-IDA
(
http://www.modbus-ida.org/
), along with this specification.
(1) Basic
Specifications
The basic specifications were explained in 3.4.4. Key items are summarized below.
Item Method/condition
Interface Conforming
to
EIA
RS485
Communication method
Half-duplex communication
Synchronization method
Asynchronous method
Connection pattern
1:1 differential connection
Transmission mode
Modbus/RTU
Baud rate (bps)
Selectable from the following by a parameter:
9600, 19200, 38400, 57600, 115200, 230400
Bit length
8 bits
Stop bit
1 bit
Parity None
Caution
In the SIO through mode, 9600 bps and 19200 bps cannot be selected.
Содержание RoboNet
Страница 1: ...Operation Manual Forth Edition ROBONET ...
Страница 242: ...222 Part 1 Specification 5 4 3 External Dimensions 50 from DIN rail center 35 mm DIN rail 69 3 from DIN rail surface ...
Страница 257: ...237 Part 2 Startup Chapter X Installed face down X Installed face up ...
Страница 354: ...334 ...
Страница 395: ...375 ...
Страница 396: ...376 ...
Страница 397: ...377 ...