Yaskawa MP920 Communications Module - Manual (Page 27)

2 Communications Modes
2.1.1 Overview
2-2
2.1 Communications Modes
2.1.1 Overview
There are basically three communications modes for communications processing imple-
mented in the Communications Modules of the MP900-Series Machine Controller. The
communications modes that can be used depend on the type of Communications Module.
Note: 1. Yes: Communications mode is supported.
No: Communications mode is not supported.
2. When engineering communications are used by the 215IF or the
218IF, a 215PC/AT Card or a general-purpose Ethernet Card is
required for the personal computer that is being used as the Pro-
gramming Device.
Various communications protocols (Extended MEMOBUS, MEMOBUS, MELSEC-A,
OMRON, and no protocol) are supported through message communications. See Chapter 3
Communications Protocols for details.
Table 2.1 Communications Modes
Communications
Mode
Overview 215IF 217IF 218IF
Link
Communications The system transfers data at regular inter-
vals between Machine Controllers in
defined memory areas. Yes No No
Message
Communications Data is transmitted by user programs using
the MEMOBUS protocol. Yes Yes Yes
An application-specific protocol (no proto-
col) is possible. Data is transmitted by a
user program. Yes Yes Yes
Engineering
Communications
(MPE720) Engineering, such as Machine Controller
programming or monitoring, is enabled by
connecting a MPE720 Programming
Device. Yes Yes Yes