Overview; Communications Modes - YASKAWA MP920 User Manual

2 Communications Modes

2.1.1 Overview

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.
Communications
Mode
Link The system transfers data at regular inter-
Communications vals between Machine Controllers in
defined memory areas.
Message Data is transmitted by user programs using
Communications the MEMOBUS protocol.
An application-specific protocol (no proto-
col) is possible. Data is transmitted by a
user program.
Engineering Engineering, such as Machine Controller
Communications programming or monitoring, is enabled by
(MPE720) connecting a MPE720 Programming
Device.
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
Overview
2-2
215IF 217IF 218IF
Yes No No
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes