Pribusin RCI-200 series, Инструкция по эксплуатации

Страница: 16 / 19

..\Manuals\RCI-200-SER Page 9 of 12
PC or PLC Interfacing using MODBUS ASCII:
The RCI-200-SER can communicate directly to a PC or PLC using MODBUS ASCII protocol.
Numerous off-the-shelf software packages have built-in MODBUS support. The following information
provides the MODBUS specific parameters necessary to configure the PC/PLC software.
Message Format
1)
RCI-XXX-MDM = 2400 Baud
ASCII Framing
Start Address Function Data LRC End
1 Char
:
2 Chars 2 Chars n Chars 2 Chars 2 Chars
CR,LF
MODBUS Registers
The functions and registers listed in the table below are the only ones implemented on all RCI products
at this time.
Description (Function) RCI-100-XXX RCI-200-XXX RCI-400-XXX RCI-800-XXX
Read Relay Status (01) 00001 00001-00002 00001-00004 00001-00008
Read Digital Input (02) 10001 10001-10002 10001-10004 10001-10008
Read Analog Output (03) 40001 40001-40002 40001-40004 40001-40008
Read Analog Input (04) 30001 30001-30002 30001-30004 30001-30008
Set Relay Status (05) 00001 00001-00002 00001-00004 00001-00008
Set Analog Output (06) 40001 40001-40002 40001-40004 40001-40008
Set Multiple Relays (0F) 00001 00001-00002 00001-00004 00001-00008
Set Multiple Analog Out (10) 40001 40001-40002 40001-40004 40001-40008
Speed Start Data Parity Stop
9600
1)
1 7 E 1