Chapter 8. Communication Driver
8-21
8.10 MODBUS Protocol
8.10.1 Communication Mode
Connection is available through various instruments and MODBUS Protocol at which MODBUS(RUT/ASC) communication is
supported.
If connected with the MODBUS Protocol, its applicable communication setting is as follows.
At this moment, the applicable communication setting of the instrument and the XGT Panel to be connected between should be
set identical to each other.
Setting Contents
Setting Item
CH 1 CH 2
Remarks
Communication
Mode
RS-232C RS-422, RS-485 -
Instrument Sided
Connector
Terminal plate or connector -
Connection
Protocol
MODBUS(RTU/ASC) Protocol -
Communication
Speed
1,200/2,400/4,800/9,600/19,200/38,400/57,600/115,200bps -
Data Bit 7Bits, 8Bits -
Parity Bit None, Even Bit, Odd Bit -
Stop Bits 1 Bit, 2 Bits -
Station No. 0 ~ 31
Station No.
unavailable if
identical to XGT
Panel
8.10.2 Connection Available Device
The range of the connection available device if connected with the MODBUS Dedicated Protocol used is as follows.
Connection Available Area
Device
Available Range
Read
(Function Code)
Write
(Function Code)
Remarks
Output Contact 0 - 65535 Available(01) Available(05) -
Input Contact
0 - 65535
Available(02) Available(05) -
Output Register
0 - 65535
Available(03) Available(06,16) -
Input Register
0 - 65535
Available(04) Available(06,16) -
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