Omron CJ Series User Manual

5 Operation
5-58
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
 CIP Messaging
The CJ1W-PRM21 PROFIBUS Master Units support sending Explicit DeviceNet (CIP) messages to
their slaves (as of Unit version 3.0). Like the DeviceNet master this is done by using the EXPLICIT
MESSAGE SEND (see section 6-3-1 EXPLICIT MESSAGE SEND (2801) for more details on this
command).
 PROFIBUS MSAC1
As of Unit version 2.0, the CJ1W-PRM21 PROFIBUS Master units provide a means to initiate PRO-
FIBUS DP-V1 services from the CPU. These services allow for reading and writing (parameter) data
from and to PROFIBUS DP-V1 slave devices. This data exchange is performed acyclically, i.e. only
once, in between the cyclic I/O data exchange messages.
The services are initiated using the PROFIBUS MESSAGE SEND command (see section 6-3-2
PROFIBUS MESSAGE SEND (2809)).
5-8-2 PROFIBUS Services From CPU

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English