Communications With A Programmable Controller - Omron SYSDRIVE 3G3RV Series User Manual

MSB will be 1.
400.0 (Hz)/0.01 (Hz) = 40000 = 9C40 Hex
Set All Unused Bits to 0
Bits 11 through 15 of the RUN command (register 0001H) are not used. When writing the data, be sure to set
all of these bits to 0. These bits when read are set to 0.
No Data Settings in Unused Registers
Registers described "not used" may be used for internal processing. Do not write any data to such registers.
A A A A Communications with a Programmable Controller
The RS-422A/485 communications of the 3G3RV Inverter conform to the MODBUS Communications Proto-
col. This protocol cannot share the same line with any other communications protocol.
To control the 3G3RV through RS-422A/485 communications with the Programmable Controller, mount a
Serial Communications Board or Unit to the Programmable Controller and use the protocol macro function.
The following settings and operations are necessary for serial communications using the protocol macro func-
tion.
• Configure system settings for the Serial Communications Board or Unit
• Create Send & Recv procedures conforming to the MODBUS Communications Protocol by means of pro-
tocol macro tools (CX-Protocol or Protocol Support Tool), and transfer them to the Serial Communications
Board.
Execute the PMCR instruction on the CPU Unit of the Programmable Controller.
•
n Applicable Programmable Controllers and Peripheral Devices
A Serial Communications Board or Unit can be mounted to the following SYSMAC CPU Units.
SYSMAC CS
SYSMAC CJ
SYSMAC C200HX/HG/HE
SYSMAC CQM1H
-92
6
Table 6.2 Applicable Programmable Controllers
Series
High-speed models: CS1H-CPU67-E/66-E/65-E/64-E/63-E
Low-speed models: CS1G-CPU45-E/44-E/43-E/42-E
CJ1G-CPU44/45
C200HX-CPU34-E/44-E/54-E/64-E/34-ZE/44-ZE/54-ZE/64-ZE/65-ZE/85-ZE
C200HG-CPU33-E/43-E/53-E/63-E/33-ZE/43-ZE/53-ZE/63-ZE
C200HE-CPU32-E/42-E/32-ZE/42-ZE
CQM1H-CPU61/51
CPU Unit models